1

Request for Proposal (RFP)

For Procurement of

CNC Milling cum Routing Machine

for Honeycomb/Composite/Aluminum Structures

Space Applications Centre (SAC)

Indian Space Research Organization (ISRO)

Ahmedabad- 380015

India

2

This document contains proprietary information of SAC/ISRO, Ahmedabad. Unauthorized

copy or reproduction of this document in whole or in part without the prior written

consent of SAC/ISRO is strictly forbidden.

SAC/ISRO reserves the right to alter this information at any time without notice.

Abbreviations/Definitions:

RFP - Request for Proposal

SAC - Space Applications Centre

ISRO - Indian Space Research Organization

Purchaser - Space Applications Centre

Bidder - The Firm which is participating in Bid

Vendor - The Firm on whom order is placed

3

Content

1 General background 4

2 Scope of supply 4

3 Overall unit requirement 4

4 Technical specifications 5

4.1 Type of machine 5

4.2 No. of Simultaneously controlled axes 5

4.3 Size of machine 5

4.4 Construction 5

4.5 Electrical Compatibility 5

4.6 Spindle 6

4.7 Accuracy 6

4.8 Control Features 7

4.9 CAD/CAM Software 7

4.10 Documentation 7

4.11 Safety 8

4.12 Language 8

4.13 Accessories/Attachment/Wear Parts/

Spares/Consumable Requirements

8

4.14 Optional Items 8

5 Machine acceptance test 9

6 List of deliverables 9

7 General Instructions 9

8 Terms and Conditions 10

9 Bidder qualification criteria 11

10 Warranty 11

11 Technical and Commercial Bid 12

11.1 Instruction for technical bid (Part-I) (Without Prices) 12

11.2 Instruction for commercial bid (Part-II) 12

12

Annexure-1 Format for compliance statement

13 to 22

4

1.0 General background

Space Applications Centre (SAC/ISRO) is currently engaged in the development of various

projects for communication, navigation and remote sensing applications. For development

of these projects, various honeycomb / composite material / solid aluminum components

are required to undergo machining processes.

SAC intends to procure, CNC Milling cum Routing Machine for honeycomb /composite

/aluminum structures which should fulfill all requirements/specifications mentioned in this

document.

2.0 Scope of supply

Bidder shall submit the proposal for the supply of a Brand New and Non-refurbished CNC

Milling cum Routing Machine for honeycomb /composite /aluminum structures to SAC to

meet the requirements / specifications mentioned in this document. The proposal should

include all components mentioned in the list of deliverables (Refer Para 6.0).

The successful bidder has to supply all components of the CNC Milling cum Routing

Machine for honeycomb /composite /aluminum structures mentioned in this RFP, install

and commission the machine at SAC, demonstrate the performance and accuracy as per

Acceptance Test plan, provide Training, and give warranty as per the P.O. terms and

conditions.

Bidder has also to supply necessary operating manual, training manual (if any), maintenance

manual etc. as mentioned in this RFP document.

Bidder should fill up details against each of the requirements of the compliance statement

(Annexure-I) submitted along with this tender document.

Bids should be submitted against this RFP in two parts. Part 1 should consist of “Technical

+ unpriced commercial bid” and part 2 should consist “Commercial bid. (Refer Para 11.0)

3.0 Overall unit requirement

The unit should comprise the following components: -

Description Quantity

CNC Milling cum Routing Machine for honeycomb

/composite /aluminum structures (4 Axis)

[Confirming to Notes (#)]

01 Unit

Accessories / Attachment / Wear Parts / Spares / Consumable

Requirement As per para 4.13

Optional Items As per para 4.14

(#) Notes

1. Technical Specifications ; General Instructions ; Terms and Conditions ; Machine

Acceptance Test ; Bidder Qualification Criteria ; Warranty ; as mentioned in RFP

2. Format of Compliance Statement to be submitted with quotation is as per

Annexure - I

5

4.0 Technical specifications

4.1 Type of Machine: CNC Milling cum Routing Machine

for honeycomb /composite /aluminum structures.

4.2 Number of Simultaneously Controlled Axes: Four

(X, Y, Z - Linear Axes and A – Rotation Axis as tilting head)

4.3 Size of machine

4.3.1 Longitudinal Travel 4600 mm to 5100 mm

4.3.2 Cross Travel 2600 mm to 3100 mm

4.3.3 Vertical Travel 450 mm to 600 mm

4.3.4 Rotation Axes +/- 100o or more

4.3.5 Clamping area on Work Table (L x W) 4600 mm x 2600 mm or more

4.3.6 Load carrying capacity of Work Table 2000 Kg or more

4.4 Construction

4.4.1 Stress Relieved Bridge Type Structure with very high stiffness and strength,

dampening vibration and deflection.

4.4.2 Solid Polymer Concrete / Granite / Cast Iron made of Fixed Machine Work

Table.

4.4.3 Auto Tool Changer (ATC) with 10 or more tools.

4.4.4 Following two types of Clamping arrangements are required on Hybrid

Table.

4.4.4.1 Universal Vacuum Fixtures, with all related accessories including

vacuum pump (147 CFM or more open flow), motor, etc., for

clamping arrangement on whole Work Table surface.

4.4.4.2 Mechanical Clamping by Threaded Holes/T-Slots on the table, with

all related tools/attachments.

4.4.5 Rigidity of machine structure should be to take up feed rates of 30 m/min

(on all axes) or more.

4.4.6 Software assisted automatic centralized lubrication system is required.

4.4.7 Highly effective Chip/Dust Suction/Extraction System on Head, for chip/dust

free working condition is required with all related accessories / attachments.

4.4.8 Close loop system with Linear Glass scale feedback for all the axes.

4.4.9 Preloaded recirculating linear ball bearings on Y and Z axes. Helical rack and

pinion on X axis.

4.4.10 Spray cooling provision is required. (Oil-Mist/Ethanol-Air)

4.5 Electrical Compatibility

Machine should work on 415 V +/- 10% Volts (phase to phase), 50 Hertz, 3 Phase

power supply. If machine does not work on 415 V, necessary step up or step down

transformer shall be provided by manufacturer as a part of the machine.

6

4.6 Spindle

4.6.1 Maximum RPM 18,000 or more

4.6.2 RPM range 3,000 to 18,000 or more and infinitely variable

4.6.3 Spindle Taper HSK A63

4.6.4 Cooling Liquid cooled and with separate spindle chiller unit

4.6.5 Spindle make Kessler / Siemens-Weiss / Fehlmann / Steptec /

Hermle / GMN / Fischer / BFW / Jyoti / HSD

4.6.6 Spindle power 15 KW (S1 duty rating) or more

4.7 Accuracy

4.7.1 Positional uncertainty(P) in X,

Y, Z axes

X and Y: 0.030 mm or Better,

Z: 0.020 mm or Better,

As per VDI DGQ 3441

(Note: As per VDI DGQ 3441

standard, 0.030/0.020 mm is total

spread and it should not be treated as

+/- 0.030/0.020 mm)

4.7.2 Positional uncertainty(P) in A

axes

20 sec or Better,

As per VDI DGQ 3441

(Note: As per VDI DGQ 3441

standard, 20 sec, is total spread and it

should not be treated as +/- 20 sec)

4.7.3 Maximum positional scatter

(Pmax) in X, Y, Z axes

X and Y: 0.020 mm or Better,

Z: 0.016 mm or better,

As per VDI DGQ 3441

(Note: As per VDI DGQ 3441

standard, 0.020/0.016 mm is total

spread and it should not be treated as

+/- 0.020/0.016 mm)

4.7.4 Spindle Bore and Face Run-out 0.005 mm or Better

4.7.5 Flatness of Work Table 0.100 mm or Better

(Should not be convex)

4.7.6

Squareness of movement (X

axis to Y axis, X axis to Z axis,

Y axis to Z axis)

0.020 mm per 300 mm or Better

4.7.7 Parallelism of Spindle axis with

respect to Z-axis

0.020 mm per 300 mm or Better

4.7.8 Straightness of X, Y & Z axes 0.020 mm per 300 mm or Better

7

4.8 Control Features

4.8.1 Make and Model Siemens 840D / Heidenhain iTNC530 /

Thermwood QCore / Equivalent Higher Version

4.8.2 Electronic Hand

Wheel

CNC Hand-held control unit having Dust-

protected keyboard with function keys and

Electronic rotating actuator for high-precise

positioning, with magnetic holder, which should

work in the steps of 0.001 mm, 0.010 mm &

0.100 mm for all axes movements

4.8.3 Screen (display) 15” or more TFT / LCD Chip-proof color

screen.

4.8.4 Program input

resolution

0.001 mm for all linear axes,

0.001 degree for rotary axes

4.8.5 Look ahead number of

blocks

100 blocks or more

4.8.6 Block Processing time 2 mille seconds or less

4.8.7 Interpolation 4 axes simultaneous

4.8.8 Hard Disk Memory 1 GB or more

4.8.9 Program Memory

(NC)

6 MB or more

4.8.10 Integrated Machining

Cycles with GUI

Profiling, Drilling, Chamfering, Pocketing,

Irregular shaped pockets with multiple islands.

4.8.11 Verification Graphics Graphical simulation before a program run

4.8.12 Synchronous graphics Graphical simulation during machining.

4.8.13 Simulation

presentation

Top view, representation in 3 planes, 3D

representation , selective enlargement

4.8.14 Data Transfer

Interface

USB and RJ 45 Ethernet (Both are required)

4.8.15 Provision for part programming of next job while machining of a job is

going on.

4.8.16 Parametric programming facility is required.

4.8.17 Provision for drop control for Z axis. In case of power failure, drop in Z

axis should be minimum possible.

4.8.18 Provision for controlling rapid feed and Machining feed

separately.(Separate knobs for controlling machining feed and rapid feed)

4.8.19 Cycle for kinematics calibration of rotary axes (RTCP calibration cycle)

using calibration sphere should be provided in the control.

4.9 CAD/CAM software

Bidder should offer CAD/CAM software for preparing part programs including 3D

Surface machining. OR Provide post processor for UGNX CAM software.

4.10 Documentation

Two sets each of Machine Manual, Programming Instructions, Electronics/Electrical

/Hydraulic /Pneumatic Circuit Diagrams, Maintenance Manual, etc. should be

supplied with machine in English language. Minimum one set of hard copy of manual

should be supplied.

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4.11 Safety

Provision for Safety against over runs, collisions and excessive load / torque

conditions.

4.12 Language

All the documents and control panel displays to be in English language.

4.13 Accessories/Attachment/Wear Parts/Spares/Consumable Requirement

If any of the following items are not provided along with the machine as standard

item, same must be quoted separately.

4.13.1 Renishaw / Blum / Heidenhein make laser assisted Tool

measuring/monitoring System.

Repeatability: ± 1 micron OR Better

Range of diameter measurement: 0.1 mm to 50 mm

4.13.2 Renishaw / Blum / Heidenhein make Touch Probe for Job measurement and

taking work offset with software. Bidder should attach catalogue of the item

offered.

Touch probe repeatability: ± 1 micron OR Better

4.13.3 Chiller for Spindle.

4.13.4 Spindle coolant for first fill up

4.13.5 Voltage Stabilizer with Isolation Transformer of reputed brand (Neel / Suvik

/ Aplab / Equivalent). Capacity of the equipment should be at least 5 KW

more than peak power requirement of the machine.

4.13.6 Wear Parts and Consumables for two years smooth functioning of the

machine. (Bidder should attach the list of the items with technical details in

Part-I and quoted separately in Part-II).

4.13.7 Any other utilities or items, which Bidder may consider necessary for smooth

and efficient functioning of the machine should be listed in part-1 and quoted

separately in part-II.

4.14 Optional Items

4.14.1 HSK-63A Collet Chucks and Collets with spanner and stand for cutter

tightening. Make: Sandvik / Kennametal-Widia / Iscar / Schunk / BIG-

Diashowa / Haimer / Schaublin / Rigo-Fix / Trobos / Equivalent. Collet

Chucks should be dynamically balanced to G2.5 grade at 20,000 RPM

Bidder should quote separately for

Collet diameters 3,4,5,6,7,8,9,10,11,12 mm. Qty: 01 each.

Collet chucks. Qty: 10 Nos.

Spanner for tightening collet chuck nuts. Qty:1 Nos.

Stand for holding collet chuck for tightening collet chuck nuts. Qty:1 No.

4.14.2 Clamping solutions: Mechanical Vice / Pneumatic chucks / Other suggested

items.

4.14.3 Protective Gloves and other safety items.

4.14.4 Startup tool kit with Tool trolley.

4.14.5 Routers / End Mill cutters.

9

5.0 Machine Acceptance Test

5.1 In view of high accuracy requirement, Bidder will have to demonstrate the accuracy

and specifications of the machine to our engineer at their manufacturing plant

before dispatching the machine. In case, our engineer does not visit the

manufacturing plant, bidder shall conduct geometrical accuracy test and positioning

accuracy tests as per VDI DGQ 3441 and provide detailed test results / charts for

the model offered prior to dispatch of the machine for SAC’s clearance.

5.2 The Bidder will have to demonstrate all the performance / specifications once again

after installation at SAC, Ahmedabad with the transformer supplied with machine.

Necessary equipment required for measurement of geometrical tests and

positioning accuracy of all the axes has to be arranged by Bidder.

5.3 Ball bar test: Circularity checked using Ball bar test should not be more than 0.015

mm in XY, XZ and YZ planes using ball bar of 150 mm length.

6.0 List of deliverables

6.1 CNC Milling cum Routing Machine for honeycomb/composite/aluminum

structures, incorporating the basic components as mentioned in technical

specifications and Standard Accessories/attachments/wear parts/consumables.

(As per Para 4.0)

6.2 Necessary Cables for Main Power Supply.

6.3 All necessary Electrical and Control Cable between relevant machine components

required for complete function of the machine.

6.4 Any other component which required for installation and commissioning of the

machine.

6.5 A set of applicable machine maintenance tools.

6.6 Hard copy and soft copies of installation, maintenance and operation manual.

6.7 Laser assisted Tool measuring/monitoring system.

6.8 Touch Probe for job measurement and work offset measurement.

6.9 Voltage Stabilizer with isolation transformer.

6.10 Spindle Chiller.

6.11 Spindle coolant with full tank to capacity for first fill up.

7.0 General Instructions

7.1 Bidder may quote both in Foreign Exchange and Indian Rupees.

7.2 The offer should be valid for at least 150 days from the date of opening / due date

of the tender.

7.3 Only those Bidders, who are confident of getting export permission to supply the

machine to us, should quote.

7.4 Un-priced commercial bid should be attached with the technical bid.

7.5 All the literature is required be in English Language.

7.6 Bidder should offer detailed technical catalogue of the machine and write up for

highlighting special features, specific applications, attachments etc.

10

8.0 Terms and Conditions

8.1 In view of high accuracy requirement, it is mandatory that machine

should be assembled in original machine manufacturer’s own plant.

8.2 The Bidder should recommend and offer all the accessories and attachments which

are essential for smooth functioning, accurate and reliable performance of the

machine. Make, model and detailed technical specifications along with photocopy

of catalogue for each and every accessory should be attached in the offer. Offer

for each and every item should be submitted separately.

8.3 Bidder should offer essential spare parts (Mechanical / Electrical / Electronics) for

trouble free operations and maintenance for at least 2 years and quote for each

item separately. Name of all the spares must be in the English language only. Brief

description about location and use of the spare should also be given.

8.4 In addition, Bidder should also offer essential control cards, electronic component,

solenoid valves, filters, switches, etc., in view of long term requirements.

8.5 Bidder should fill up details against each of the requirements of the compliance

statement (Annexure-I) submitted along with this tender document. Silence on

any point shall be treated as non-compliance. Simple compliance

without details, lack of information or information without proper

explanation shall also be treated as non-compliance. Hence, in order to

strengthen the merit of offer, please provide detailed explanation about

how bidder intends to comply with each and every specification of this

tender. This is an essential part of the offer. Offer without detailed compliance

report shall be treated as incomplete and liable for rejection without assigning any

reason thereof.

8.6 Bidder should submit their offer with the minimum delivery period from the date

of letter of intent or placement of purchase order (PO) by SAC, whichever is

earlier and should be adhered to. All the items of the PO need be supplied as

single consignment avoiding part supply / shipment.

8.7 Machine should work on 3-phase AC power supply of 415 V, 50 Hz. If machine

offered does not work on 415 V, bidder shall supply required step up/ step down

transformer as a part of machine.

8.8 The Bidder, if necessary, should recommend and detail out in their offer, any

specific requirement like compressed air requirement, foundation of machine,

controlled environmental conditions, cutting fluid etc. for the specific performance

of the machine.

8.9 It will be the sole responsibility of Bidder to carry out electrical connections from

main switch to stabilizer and stabilizer to machine. Necessary cables and tools

should be brought by Bidder.

8.10 Vendor should arrange for transportation of machines from their works to SAC

workshop. It includes transportation of the machine from manufacturing plant to

SAC, unloading at SAC and shifting the machine inside the workshop using fork-

lift truck or any other suitable material handling equipment. Vendor should ensure

safe handling of the machine till installation and commissioning of the machine is

completed at its identified location and performance demonstrated at SAC,

Ahmedabad.

11

8.11 Bidder will also confirm / commit in their offer for the following.

8.11.1 Two sets of manual for operation, control, maintenance and

troubleshooting should be provided by the Bidder in English language, out

of which one set of the manual for operation, control and maintenance

with details and requirements of space, power, foundation details etc. for

the installation and commissioning of the machine need to be sent by

Airmail / speed mail, quite in advance for our study and readiness for

installation and commissioning. Minimum one set of manual should be

submitted in hard copy.

8.11.2 The Bidder should provide service for installation, commissioning and

detailed training for operation, maintenance, trouble-shooting etc. free of

cost at our premises. Operation training should be given in two phases.

First phase should consist machine operating training (two days) and

second phase consist maintenance and application(advance) training.

There should not be any restriction on period of training and number of

persons to be trained. However, training will be restricted to one batch

of few persons.

8.11.3 The Bidder should provide foundation details, required room size and

dimensions of entry / opening for taking machine into the room / building.

8.11.4 Electric circuit diagram of the machine should be supplied with the

machine in English language.

8.11.5 Drawings of the important mechanical assemblies should be supplied for

the maintenance purpose.

9.0 Bidder Qualification criteria

9.1 Bidder should have office in India for after sales support and service and at-least

two factory trained service engineer based in India to carry out maintenance of

the machine offered. Bidder should furnish the address and telephone numbers of

the office and name address and telephone numbers of the service engineers.

Bidder shall also provide full details of their service stations in India including man-

power, infrastructure, equipment’s available at each station along with their offer.

9.2 Manufacturer should submit undertaking / commitment in writing for efficient after

sales service and supply of spare parts for 10 years from the date of Installation of

machine.

9.3 If bidder is not a manufacturer, bidder should attach the authorization certificate

from manufacturer stating that bidder is authorized to sell and service the product

offered, in India. Validity period should also be clearly mentioned in the certificate.

10.0 Warranty:

10.1 12 months on-site warranty for trouble free operation of the machine from the

date of final commissioning and acceptance of machine by SAC, Ahmedabad and

free services shall be provided for any trouble during this period. During the period

of warranty, if any part is to be replaced, Bidder will have to replace it free of cost.

Warranty should include all the items supplied against purchase order.

12

10.2 Bidder should also submit offer for extended warranty for further 1 year/2 years/3

years on chargeable basis. - Optional

11.0 Technical and Commercial Bid:

Bids should be submitted against this RFP in two parts.

Part 1 should consist of “Technical + unpriced commercial bid”

Part 2 should consist “Commercial bid.

11.1 Instruction for Technical Bid (Part 1)

Bidders shall submit technical bid with following details:

11.1.1 Quote will become invalid if prices are included in the technical bid.

11.1.2 Point by point compliance to all points as per sample, mentioned in Annexure-I page nos. 13 to 22.

11.1.3 The bidder is advised to mention Page numbers to all papers / Brochures provided in the offer. This is to ensure all the papers are in place.

11.1.4 Bidder shall submit the list of all the papers/documents etc. in the Index table as per the sample format given below:

Sr.

No.

Description Page No.

1.

2.

:

11.1.5 Copy of commercial bid without prices shall be submitted along with the technical bid also as under. Sample format shown below.

Sr

No

Item Description, Make and

Model / Product code

Qty Unit

cost

Total

Cost

Remark

1.

LE

AV

E B

LA

NK

LE

AV

E B

LA

NK

2.

3.

:

:

:

Total Cost LEAVE BLANK

11.2 Instructions for Commercial Bid (Part 2)

Cost break-up for major items shall be submitted as per Sample format shown

below.

11.2.1 A sample format for commercial bid:

Sr.

No

Item Description, Make and

Model / Product code

Qty Unit

cost

Total

Cost

Remark

1.

2.

3.

:

Total Cost

13

ANNEXURE-I

Compliance Statement

Sr. No.

as per

tech.

specs

Specification Compliance What Bidder should

write under

Compliance column.

2.0 Scope of Supply

2.1 Brand new and non-refurbished machine Yes/No

4.0 Technical Specifications

4.1 Type of Machine: CNC Milling cum Routing

Machine for Honeycomb/Composite/Aluminum

Structures

Yes/No

4.2 Number of Simultaneously Controlled

Axes: Four (X, Y, Z - Linear Axes and A –

Rotation Axis as tilting head)

Write No. of Axes

4.3 Size of machine

4.3.1 Longitudinal Travel : 4600 mm to 5100 mm Write numerical value

4.3.2 Cross Travel : 2600 mm to 3100 mm Write numerical value

4.3.3 Vertical Travel : 450 mm to 600 mm Write numerical value

4.3.4 Rotation Axes : +/- 100o or more Write numerical value

4.3.5 Clamping area on Work Table (L x W) :

4600 mm x 2600 mm or more

Write numerical value

4.3.6 Load carrying capacity of Work Table : 2000 Kg

or more

Write numerical value

4.4 Construction

4.4.1 Stress Relieved Bridge Type Structure with very

high stiffness and strength, dampening vibration

and deflection.

Yes/No

(Write type of

construction)

4.4.2 Solid Polymer Concrete / Granite / Cast Iron

made of Fixed Machine Work Table.

Write material of

work table.

4.4.3 Auto Tool Changer (ATC) with 10 or more

tools.

Write Number of

tools in ATC.

4.4.4.1 Universal Vacuum Fixtures, with all related

accessories including vacuum pump (147 CFM or

more open flow), motor, etc., for clamping

arrangement on whole Work Table surface.

Yes/No

(Details of each

attachments)

4.4.4.2 Mechanical Clamping by Threaded Holes/T-Slots

on the table, with all related tools/attachments.

Yes/No

(Details of each

attachments)

4.4.5 Rigidity of machine structure should be to take

up feed rates of 30 m/min (on all axes) or more.

Write possible feed

rate while machining

4.4.6 Software assisted automatic centralized

lubrication system.

Yes/No

14

4.4.7 Highly effective Chip/Dust Suction/Extraction

System on Head, for chip/dust free working

condition is required with all related accessories

/ attachments.

Yes/No

(Details of each

attachments)

4.4.8 Close loop system with Linear Glass scale

feedback for all the axes.

Yes/No

(Write make and

Resolution)

4.4.9 Preloaded recirculating linear ball bearings on Y

and Z axes. Helical rack and pinion on X axis.

Yes/No

(Write make)

4.4.10 Spray cooling provision is required.

(Oil-Mist/Ethanol-Air)

Yes/No

(Write cooling

medium)

4.4 Electrical Compatibility: 415 V +/- 10% Volts

(phase to phase), 50 Hertz, 3 Phase power

supply. If machine does not work on 415 V,

necessary step up or step down transformer shall

be provided by manufacturer as a part of the

machine.

Agree/disagree

(Write Electrical

Requirement)

4.6 Spindle

4.6.1 Maximum RPM : 18,000 or More Write max. RPM

4.6.2 RPM range :3,000 to 18,000 or more and

infinitely variable

Write range of RPM.

Confirm infinite

variability.

4.6.3 Spindle Taper: HSK 63-A Write spindle taper.

4.6.4 Cooling: Liquid cooled and with separate spindle

chiller unit

Write spindle cooling

media & Chiller unit

provided or not

4.6.5 Spindle make: Kessler / Siemens-Weiss /

Fehlmann / Steptec / Hermle / GMN / Fischer /

Jyoti / BFW / HSD

Write make

4.6.6 Spindle power: 15 KW or more (S1 duty rating) Write power at S1

rating.

4.7 Accuracy

4.7.1 Positional uncertainty(P) in X, Y, Z axes

X and Y: 0.030 mm or Better,

Z: 0.020 mm or Better,

As per VDI DGQ 3441

(Note: As per VDI DGQ 3441 standard,

0.030/0.020 mm is total spread and it should not

be treated as +/- 0.030/0.020 mm)

Write positional

uncertainty value as

per VDI DGQ 3441

standard.

4.7.2 Positional uncertainty(P) in A axes

20 sec or Better,

As per VDI DGQ 3441

(Note: As per VDI DGQ 3441 standard, 20 sec,

is total spread and it should not be treated as +/-

20 sec)

Write positional

uncertainty value for

rotary axes as per VDI

DGQ 3441 standard.

15

4.7.3 Maximum Positional scatter(Pmax) in X,Y,Z axes

X and Y: 0.020 mm or Better

Z: 0.016 mm or better

As per VDI DGQ 3441

(Note: As per VDI DGQ 3441 standard,

0.030/0.020 mm is total spread and it should not

be treated as +/- 0.020/0.016 mm).

Write positional

uncertainty value as

per VDI DGQ 3441

standard.

4.7.4 Spindle Bore and Face Run-out:

0.005 mm or Better.

Write numerical value

4.7.5 Flatness of Work Table:

0.100 mm or Better (Should not be convex).

Write numerical value

4.7.6 Squareness of movement (X axis to Y axis, X axis

to Z axis, Y axis to Z axis):

0.020 mm per 300 mm or Better.

Write numerical value

4.7.7 Parallelism of Spindle axis with respect to Z-axis:

0.020 mm per 300 mm or Better.

Write numerical value

4.7.8 Straightness of X, Y & Z axes:

0.020 mm per 300 mm or Better.

Write numerical value

4.8 Control Features

4.8.1 Make and Model: Siemens 840D / Heidenhain

iTNC530 / Thermwood QCore / Equivalent

Higher Version.

Write name of control

4.8.2 Electronic Hand Wheel: CNC Hand-held

control unit having Dust-protected keyboard

with function keys and Electronic rotating

actuator for high-precise positioning, with

magnetic holder, which should work in the steps

of 0.001 mm, 0.010 mm & 0.100 mm for all axes

movements.

Yes/No

and

write steps of

movement

4.8.3 Screen (display): 15” or more TFT / LCD

Chip-proof color screen.

Write size of the

screen in inches and

describe the screen

type.

4.8.4 Program input resolution: 0.001 mm for all

linear axes, and 0.001 degree for rotary axes.

Write numerical value

4.8.5 Look ahead number of blocks: 100 blocks or

more

Write numerical value

4.8.6 Block Processing Time: 2 ms or less Write numerical value

4.8.7 Interpolation: 4 axes simultaneous Yes/No

4.8.8 Hard Disk Memory: 1 GB or More Write memory of

hard disk drive

4.8.9 Program Memory (NC) : 6MB or More Write memory of NC

4.8.10 Integrated Machining Cycles with GUI:

Profiling, Drilling, Chamfering, Pocketing,

Irregular shaped pockets with multiple islands,

etc.

Write each and every

cycles in detail

16

4.8.11 Verification Graphics: graphical simulation

before a program run.

Yes/No

4.8.12 Synchronous graphics : Graphical simulation

during machining.

Yes/No

4.8.13 Simulation Presentation : Top view,

representation in 3 planes, 3D representation,

selective enlargement.

Yes/No

4.8.14 Data Transfer Interface: USB and RJ 45

Ethernet (Both are required).

Write all interfaces

4.8.15 Provision for part programming of next job while

machining of a job is going on.

Yes/No

4.8.16 Provision for Parametric programming facility. Yes/No

4.8.17 Provision for drop control for Z axis. In case of

power failure, drop in Z axis should be minimum

possible.

Yes/No and

Value of drop

4.8.18 Provision for controlling rapid feed and

Machining feed separately.(Separate knobs for

controlling machining feed and rapid feed).

Yes/No

4.8.19 Cycle for kinematics calibration of rotary axes

(RTCP calibration cycle) using calibration sphere

should be provided in the control.

Yes/No

4.9 CAD/CAM software

Bidder should offer CAD/CAM software for

preparing part programs including 3D Surface

machining. OR Provide post processor for

UGNX CAM software.

Yes/No

(Write the solution

offered with software

details)

4.10 Documentation

Two sets each of Machine Manual, Programming

Instructions, Electronics/Electrical /Hydraulic

/Pneumatic Circuit Diagrams, Maintenance

Manual, etc. in English language.

Minimum one set of hard copy of above manuals.

Yes/No

4.11 Safety

Provision for Safety against over runs, collisions

and excessive load / torque conditions

Write provision of

safety in detail for

each head

4.12 Language

All the documents and control panel displays to

be in English language.

Yes/No

4.13 Accessories/ Attachment/ Wear Parts/

Spares / Consumable Requirement

(If any of the following items are not provided

along with the machine as standard item, same

must be quoted separately.)

17

4.13.1 Renishaw / Blum / Heidenhein make laser assisted

Tool measuring/monitoring System.

Repeatability: ± 1 micron OR Better Range of diameter measurement: 0.1 mm

to 50 mm

Write make and

model offered

(Mention Range of

diameter

measurement)

4.13.2 Renishaw / Blum / Heidenhein make Touch Probe

for Job measurement and taking work offset with

software.

Touch probe repeatability: ± 1 micron OR Better.

Write make and

model offered

4.13.3 Chiller for spindle. Write make and

model offered

4.13.4 Spindle coolant for first fill up. Write make and qty.

4.13.5 Voltage Stabilizer with Isolation Transformer of

reputed brand (Neel / Suvik / Aplab / Equivalent).

Capacity of the equipment should be at least 5

KW more than Peak power requirement of the

machine.

Write make, model

and capacity offered

4.13.6 Wear Parts and Spares for two years smooth

functioning of the machine.

Quoted / Not Quoted

4.13.7 Any other utilities or items, which Bidder may

consider necessary for smooth and efficient

functioning of the machine should be quoted

separately.

Quoted / Not Quoted

4.14 Optional Items

4.14.1 HSK 63-A Mechanical Collet Chucks and Collets

with spanner and stand for cutter tightening.

Make: Sandvik / Kennametal-Widia / Iscar /

Schunk / BIG-Diashowa / Haimer / Schaublin /

Rigo-Fix / Trobos / Equivalent. Collet Chucks

should be dynamically balanced to G2.5 grade at

20,000 RPM.

Bidder should quote separately for

Collet diameters 3,4,5,6,7,8,9,10,11,12 mm.

Qty: 01 each.

Collet chucks. Qty: 10 Nos.

Spanner for tightening collet chuck nuts.

Qty:1 No.

Stand for holding collet chuck for tightening

collet chuck nuts. Qty:1 No

1 Quoted / Not

Quoted

2 Catalogue.

attached/not

attached.

3 Write make,

model, accuracy

and balancing

specifications.

4.14.2 Clamping Solutions :

Mechanical Vice / Pneumatic chucks / Other

suggested items

(Write make, model, accuracy and other

Specifications)

1 Quoted / Not

Quoted

2 Catalogue

attached/not

attached.

18

4.14.3 Protective Gloves and other safety items

(Write make, model, accuracy and other

Specifications)

1 Quoted / Not

Quoted

2 Catalogue

attached/not

attached.

4.14.4 Startup tool kit with Tool trolley

(Write make, model, accuracy and other

Specifications)

1. Quoted / Not

Quoted

2. Catalogue

attached/not

attached.

4.14.5 Routers / End Mill cutters

(Write make, model, accuracy and other

Specifications)

1. Quoted / Not

Quoted

2. Catalogue

attached/not

attached.

5.0 Machine Acceptance Test

5.1 In view of high accuracy requirement, Bidder will

have to demonstrate the accuracy and

specifications of the machine to our engineer at

their manufacturing plant before dispatching the

machine. In case, our engineer does not visit the

manufacturing plant, bidder shall conduct

geometrical accuracy test and positioning

accuracy tests as per VDI DGQ 3441 and provide

detailed test results / charts for the model

offered prior to dispatch of the machine for

SAC’s clearance.

Yes/No

5.2 The Bidder will have to demonstrate all the

performance / specifications once again after

installation at SAC, Ahmedabad with same

transformer supplied with machine. Necessary

equipment required for measurement of

geometrical tests and positioning accuracy of all

the axes has to be arranged by Bidder.

Yes/No

5.3 Ball bar test: Circularity checked using Ball bar

test should not be more than 0.015 mm (15

micron) in XY, XZ and YZ planes using ball bar

of 150 mm length

Yes/No

6.0 List of Deliverables

6.2 Necessary Cables for Main Power Supply along

with the Machine.

Yes/No and Describe

6.3 All necessary Electrical and Control Cable

between relevant machine components required

for complete function of the machine.

Yes/No and Describe

6.4 Any other component which required for

installation and commissioning of the machine.

Yes/No and Describe

19

6.5 A set of applicable machine maintenance tools. Yes/No and Describe

6.6 Hard copy and soft copies of installation,

maintenance and operation manual.

Yes/No and Describe

6.7 Laser assisted Tool measuring/monitoring

system.

Yes/No and Describe

6.8 Touch Probe for job measurement and work

offset measurement.

Yes/No and Describe

6.9 Voltage Stabilizer with isolation transformer. Yes/No and Describe

6.10 Spindle Chiller. Yes/No and Describe

6.11 Spindle coolant with full tank to capacity for first

fill up.

Yes/No and Describe

the capacity

7.0 General Instructions

7.1 Bidder may quote both in Foreign Exchange and

Indian Rupees.

Agree/Disagree

7.2 The offer should be valid for at least 150 days

from the date of opening / due date of the tender.

Agree/Disagree

7.3 Only those Bidders, who are confident of getting

export permission to supply the machine to us,

should quote.

Agree/Disagree

7.4 Un-priced commercial bid should be attached

with the technical bid.

Agree/Disagree

7.5 All the literature is required be in English

Language.

Agree/Disagree

7.6 Bidder should offer detailed technical catalogue

of the machine and write up for highlighting

special features, specific applications,

attachments etc.

Agree/Disagree

8.0 Terms and Conditions

8.1 In view of high accuracy requirement, it is

mandatory that machine should be

assembled in original machine

manufacturer’s own plant.

Agree/Disagree

8.2 The Bidder should recommend and offer all the

accessories and attachments which are essential

for smooth functioning and accurate and reliable

performance of the machine. Make, model and

detailed technical specifications along with

photocopy of catalogue for each and every

accessory should be attached in the offer. Offer

for each and every item should be submitted

separately.

Agree/Disagree

20

8.3 Bidder should offer essential spare parts

(Mechanical / Electrical / Electronics) for trouble

free operations and maintenance for at least 2

years and quote for each item separately. Name

of all the spares must be in the English language

only. Little description about location and use of

the spare should also be given.

Agree/Disagree

8.4 In addition, the Bidder should also offer

specifically the essential control cards, electronic

components, solenoid valves, filters, switches,

etc., in view of long term requirements.

Agree/Disagree

8.5 Bidder should fill up details against each of the

requirements of the compliance statement

(Annexure-I) submitted along with this tender

document. Silence on any point shall be

treated as non-compliance. Simple

compliance without details, lack of

information or information without

proper explanation shall also be treated as

non-compliance. Hence, in order to

strengthen the merit of offer, please

provide detailed explanation about how

bidder intends to comply with each and

every specification of this tender. This is an

essential part of the offer. Offer without detailed

compliance report shall be treated as incomplete

and liable for rejection without assigning any

reason thereof.

Agree/Disagree

8.6 Bidder should submit their offer with the

minimum delivery period from the date of letter

of intent or placement of purchase order (PO) by

SAC, whichever is earlier and should be adhered

to. All the items of the PO need be supplied as

single consignment avoiding part supply /

shipment.

Agree/Disagree

8.7 Machine should work on 3-phase AC power

supply of 415 V, 50 Hz. If machine offered does

not work on 415 V, bidder shall supply required

step up/ step down transformer as a part of

machine.

Agree/Disagree

8.8 The Bidder, if necessary, should recommend and

detail out in their offer, any specific requirement

like compressed air requirement, foundation of

machine, controlled environmental conditions,

cutting fluid etc. for the specific performance of

the machine.

Agree/Disagree

21

8.9 It will be the sole responsibility of Bidder to carry

out electrical connections from main switch to

stabilizer and stabilizer to machine. Necessary

cables and tools should be brought by Bidder.

Agree/Disagree

8.10 Vendor should arrange for transportation of

machines from their works to SAC workshop. It

includes transportation of the machine from

manufacturing plant to SAC, unloading at SAC

and shifting the machine inside the workshop

using fork-lift truck or any other suitable material

handling equipment. Vendor should ensure safe

handling of the machine till installation and

commissioning of the machine is completed at its

identified location and performance

demonstrated at SAC, Ahmedabad.

Agree/Disagree

8.11 Bidder will also confirm / commit in their offer

for the following

8.11.1 Two sets of manual for operation, control,

maintenance and troubleshooting should be

provided by the Bidder in English language, out of

which one set of the manual for operation,

control and maintenance with details and

requirements of space, power, foundation

details etc. for the installation and

commissioning of the machine need to be sent by

Airmail / speed mail, quite in advance for our

study and readiness for installation and

commissioning. Minimum one set of manual

should be submitted in hard copy.

Agree/Disagree

8.11.2 The Bidder should provide service for

installation, commissioning and detailed training

for operation, maintenance, trouble-shooting

etc. free of cost at our premises. Operation

training should be given in two phases. First phase

should consist machine operating training (two

days) and second phase consist maintenance and

application(advance) training. There should not

be any restriction on period of training and

number of persons to be trained. However,

training will be restricted to one batch of few

persons.

Agree/Disagree

8.11.3 The bidder should provide foundation details,

required room size and dimensions of

entry / opening for taking machine into the

room / building.

Agree/Disagree

22

8.11.4 Electric circuit diagram of the machine should be

supplied with the machine in English language.

Agree/Disagree

8.11.5 Drawings of the important mechanical assemblies

should be supplied for the maintenance purpose.

Agree/Disagree

9.0 Bidder Qualification criteria :

9.1 Bidder should have office in India for after sales

support and service and at-least two factory

trained service engineer based in India to carry

out maintenance of the machine offered. Bidder

should furnish the address and telephone

numbers of the office and name address and

telephone numbers of the service engineers.

Bidder shall also provide full details of their

service stations in India including man-power,

infrastructure, equipment’s available at each

station along with their offer.

Submit all the details.

Attach separate sheet

if required.

9.2 Manufacturer should submit undertaking /

commitment in writing for efficient after sales

service and supply of spare parts for 10 years

from the date of Installation of machine.

Write Yes/No and

attach undertaking

from manufacturer.

9.3 If bidder is not a manufacturer, bidder should

attach the authorization certificate from

manufacturer stating that bidder is authorized to

sell and service the product offered, in India.

Validity period should also be clearly mentioned

in the certificate.

Submit all the details.

Attach separate sheet

if required.

10.0 Warranty

10.1 12 months on-site warranty for trouble free

operation of the machine from the date of final

commissioning and acceptance of machine by

SAC

Write period of

warranty offered.

10.2 Bidder should also submit offer for extended

warranty for further 1 year/2 years/3 years on

chargeable basis. - Optional

Yes / No

11.0 Do you agree with all the terms and

conditions mentioned in Annexure-I

Yes/No.