MANFREDINI & SCHIANCHI…since 1962

MS VIBRATING SCREENS

The operating principle of MS High-Efficiency Vibrating Screens sets new standards in

industrial screening which means enhanced technical features.

The high frequency oscillating energy is generated by electromagnetic heads aligned on

supporting bridges.

• The Vibrating Electromagnets usually give 4000

high frequency cycles to the stainless steel mesh

with a Max amplitude of 700 microns as oscillating

range, anyway the energy supplied to each head is

adjustable and variable

• All electromagnets are independently managed by

the electronic switchboard in terms of intensity and

frequency

• The heads are mounted directly on the screening

mesh in the most appropriate positions around the

entire surface to provide different types of vibration

that can be varied to suit the individual

requirements of each material and the different

types of separation required.

• By tilting the screen and selecting the most

appropriate mesh hole size, extremely accurate

separation is achieved even when large quantities

of material are being fed through.

• For the purpose of obtaining different grain sizes,

vibrating screens are available with one and two

nets:

• 1 Net = 2 grain size fractions

• 2 Nets = 3 grain size fractions

• This operating principle ensures that the machine

is completely static and that the mesh frame and

the structure are oscillation free.

• The angle of screening deck is adjustable

ranging from 30 to 45 degree angle in order to

adapt to infeed material characteristics.

• Furthermore in several cases, we instal a 1 to 3

ratio rectangular mesh slot so as to increase the

passing area.

• An MS feeder can be installed when the material

is not fed perpendicular to the screen feed port.

• A dust collecting system on the screening deck

and in the frame facilitates screening process.

VIBRATING SCREENS SELF-CLEANING SYSTEM

•All MS Vibrating Screens are available to order fitted

out with our automatic brush system.

•These brushes are mounted beneath the mesh frames

to ensure continuous cleaning of the screening sector

and consequently improve screening.

•The brushes are driven by a double-acting pneumatic

cylinder with adjustable end stroke dampers.

•The cylinder is controller by an electro-pneumatic panel

which has facility for adjusting the time the cylinder

operates.

•Moreover the electonic switchboard is equipped with a

maximum intensity timed setting which can shake the

meshes to get rid of possible flakes

VIBRATING SCREENS AUTOMATIC OPENING SYSTEM

All MS Vibrating Screens are available to

order with manual or electrical operated

hydraulic unit which tilts the screen to

provide easy access for maintenance and

replacement of the mesh frames

•For moist and hygroscopic materials like talc, phosphates,

limestone , our screen can be equipped with an automatic

heating system which creates a controlled short circuit to

keep the mesh hot , however never exceeding 45 degree C

temperature in order to avoid mesh deformation.

•The Vibrating Screen Heater System prevents lumps forming

on the mesh, consisting of a set of copper bars installed at

the ends of the net and connected to power cables controlled

by a transformer and relative control board.

•This innovative system breaks new grounds in the field of

industrial screening since it solves conventional problems

caused by the moisture content of the raw material

processed, which impair the efficiency of the screening

machine.

•Manfredini & Schianchi has been building industrial screens

since 1970 and is still a reference point in this sector, thanks

to the innovative content of all machines with the M&S

trademark

VIBRATING SCREENS HEATER SYSTEM

CONTROL INSTRUMENT FOR SCREEN CR88

The net control instrument CR/88/MS

is inserted after the screen and

performs continuous analysis of the

screened product.

The net control instrument CR/88/MS is inserted after the screen and performs continuous

analysis of the screened product.

In the case of altered particle size distribution caused by the breakage of the screen net, particles

of material larger than the screen net accumulate on the electronic detector (Proxi), activating an

acoustic alarm and a warning light on the electric control panel.

Manfredini & Schianchi also succeeded in installing his screens in food sectors like sea salt, rock

salt, sugar and powdered milk. In such circumstances the machine is totally made in stainless steel

AISI 304 or 316, all packings are in foodstuff rubber and the electric switchboard and cables are

upon need in fireproof configuration .

A comparison of our abovementioned screen with a typical Mogensen sizer having same screening

surface is :

•40 % higher throughput

•Lifespan of mesh is 3 times longer

•Noise level does not exceed 80 dB

•Static machine with no dynamic forces involved

•Possibility to size material at 100 microns

Here we list some of the materials which we handle:

Clays

Anthracite

Slate

Asphalt

Baryte

Bauxite

Barium oxide

Bentonite

Sodium bicarbonate

Borax

Calcite

Calcium

Carbon

Ashes

Cement

Hydrated lime

Calcium oxide

Carbonates

Coal

Lead ore

Ocher

Calcium oxide

Copper oxide

Iron oxide

Magnesium oxide

Manganese oxide

Lead oxide

Zinc oxide

Titanium oxide

Phosphates

Calcium phosphate

Lead

Slags / Rejects / Wastes

Calcium sulphate

Silica

Sodium nitrate

Sulphur

Talc

Coke

Cobalt

Chromite

Pigments

Fertilizers / Manure

Enamels

Feldspars

Graphite

Gypsum

Kaolin

Lignite

Magnesia

Magnesium

Magnetite

Marble

Limestone

Calcium carbonate

Iron ore

Manganese ore

Earths

Zinc

Zirconium Quartz

Basalt

Glass

Phonolite

Nepheline

Coffee

Cocoa

Soot

Pyrulosite

Sugar

Diatomite

Powdered milk

DESCRIPTION OF THE PROCESS