Company Introduction

LET Meschede GmbH Auf’m Brinke 17

59872 Meschede / Germany

Tel.: 0291 / 99 54 - 0

Fax: 0291 / 99 54 - 54

Mail: info@let-meschede.de

Web: www.let-meschede.de

With Passion in the Market!

Preface

With passion in the market means, just as in a family, to regard others, respect feelings, respond to particularities and, last but not least, stand together for better or worse. However, success does not come by itself but is the result of performance and high quality, for which all employees of our enterprise are responsible. Highly motivated and qualified employees are therefore our greatest capital. This is complemented by modern methods and proven manufacturing processes. Besides the most modern test equipment for research and development, cooperation with leading universities and technical laboratories is available. However, good technologies have a history and are hence no coincidence. They are in fact the sum of long-term experience and ongoing research. Our flexibility and adaptiveness made us a reliable partner, competent system provider and future-oriented developer. With the inclusion of decentralized extraction systems, LET®meschede now makes the competence, which was gained in the manufacture of

filtration equipment during a quarter of a century, available for a completely new market segment. The new decentralized extraction systems will show you, our customer – we are with passion in the market.

Ralf Kuhlmann Manager

Learn more about us!

Contents

1. LET®meschede in a nutshell – that’s us!

2. Product examples

3. Fire protection / explosion protection 4. Comprehensive range – the product range from A – Z

5. The full package – full service

6. A reliable partner – your benefits at a glance

7. More than just a supplier – excerpt from our reference list

8. We are here for you! – Your contact partners

We make your dust to our passion!

LET in a nutshell

For more than a quarter of a century LET®meschede has been a

successful manufacturer and developer in the domain of extraction and filtration technology.

At our plant in Meschede, Sauerland, 50 employees work on the development and implementation of customised and market-conform filtration solutions “Made in Germany”.

The service spectrum includes planning, manufacture, installation and start-up of complete process engineering solutions, service and maintenance of ventilation systems.

Since 2006 LET®meschede has been developing and manufacturing

compact decentralized extraction systems as series and small series products in cooperation with machine manufacturers of all processing areas.

We look beyond the obvious and consider the procedure technical environment to provide our customers with the most efficient filtration solution.

In 2009 we started to develop and manufacture movable grinding and extraction cabins with integrated filter systems for the energy and aerospace industries.

2015, the new company name LET Meschede GmbH was created from the brand name LET®meschede.

The innovative power of our company serves the continually increasing requirements of green technologies and occupational health and safety, machine and plant protection.

Product examples

Oil and emulsion spray separator EA serie

Cartrige filter PFJ serie

Designed for industrial production (100% ED)

Favourable operating costs

Low noise emission

Separation efficiency up to 99,95%

Individual fitting

Easy servicing

Designed for industrial production

Variable connection options

Easy in-house transport

Separation efficiency up to 99,90%

Favourable operating costs

Individual fitting

Easy servicing

Suction of a grinding / polishing machine for stainless steel

Product examples

Stainless steel welding fume suction

Product examples

Cartridge filter units for a volume flow of 30,000m³/h each

Produktpalette

Suction of aluminium dusts

Product examples

Suction and filter unit PFJ-3,000 HV explosion protected for the extraction of aluminium grinding dusts

Suction of LDS cabins (wire arc spraying)

Product examples

Suction and filter units for wire arc spraying with argon- extinguishing system

Extraction and deposition plant for insulation materials

Product examples

Cartridge filter plant with 12,000m³/h volume flow rate for insulation material extraction, which is generated when turning isolators. Installation of filter center outdoors with discharge via rotary gate valves in provided container. This plant incorporates an explosion protection concept with safe pressure discharge.

Product examples

Extraction and deposition plants for CFRP/GRP abrasive dust

Explosion-protected filter centers according to DIN EN 14491 with external pressure discharge for cabin extraction with 12,000m³/h volume flow rate for the cabin with dust discharge via dual flap system and big bag unit.

Suction system for processing pentane

Product examples

Suction at the blender head or at the upper and lower line

Housing of the wet room and activation pumps

Cartridge filter unit PFJ-20,000 with adjacent fan for chip extraction on the cross cutter. A briquetting press is installed downstream to reduce the chip volume.

Product examples

Pneumatic conveyance with silo facility for the food industry

Pneumatic conveyor for the suction and sighting of waffle breakage with silo facility, volume 75m³

Product examples

Oil and emulsion spray separator EA–12,000

Product examples

Product examples

Explosion-protected filter plant with activated carbon filter stage

Solvent extraction for 5,000m³/h volume flow rate via cartridge filter plant in explosion-protected design. As secondary filtration stage an activated carbon filter is incorporated.

Product examples

Movable cabin with filter center for safe pressure discharge in the working space

Movable grinding and extraction cabin for GRP rotor blades

Filter center with safe pressure discharge in working space via indoor vent according to ATEX 100a and FSA-certified.

Collectors in a grinding area

Product examples

Fire protection / explosion protection

Fire detection / extinguishing systems

According to statements of fire protection manufacturers, daily at least one extraction or dust separation plant in Germany is on fire. These incidents cause significant economic loss. The plant operator is responsible for the safety of the plant. How can such dust explosion occur? Mixtures of dust and air are explosive, when the dust consists of flammable materials, such as coal, flour, wood, starch or cellulose. Even inorganic substances, such as magnesium, aluminum, iron and steel are explosive or at least flammable in this state. Besides flammability the small particle size of the dust is an important factor, since the explosive effects increase with decreasing particle size. If in these cases a flammable dust-air mixture with sufficient oxygen and a potent ignition source are available at the same time, there is danger of explosion. Ignition sources:

Hot surfaces (grinder, mixer, fan)

Mechanical sparks (rubbing, grinding, hitting)

Electrical equipment

Electrical sparks

Electrostatic discharges (cone, brush etc.)

Fire protection / explosion protection

Fire detection / extinguishing systems

LET®meschede fire detection and extinguishing systems takes into

account: Fire emergence hazards

Fire detection

Fire alarm

Fire spread

Fire fighting

Benefits of our fire detection and extinguishing systems: Preventive fire protection

High operational safety

Fast fire detection

Alarm relay to operating staff or fire department

Fast insertion of extinguishing agent in protected area

No damage by fire fighting water

Fast operational readiness of the entire plant reduced production downtime

No disposal costs for the extinguishing agent

Easy retrofitting in existing plant

No static problems as with fire fighting with water.

With fire protection and extinguishing systems from LET®meschede you

gain reliability of the production process, supply availability and hence your competitiveness.

Fire protection / explosion protection

ATEX directive

A variety of standards and directives ensures that the danger of explosion is minimized. On 1 July 2003 the various national explosion protection directives were harmonized Europe-wide. ATEX 95 (short for ATmosphère EXplosible) specifies product requirements and targets mainly manufacturers. The directive applies to all electrical equipment, protection systems and their components, which are within a potentially explosive atmosphere. The following obligations result for the manufacturers: Risk assessment of products Categorization in device categories Specification of intended use and operating conditions

ATEX 137 describes workplace requirements and is relevant for plant operators. It addresses the operational industrial safety and was nationally implemented with the operational safety directive. It primarily imposes the following obligations on employers: Identification of explosive dust parameters Zoning according to risk of explosion Marking of explosive areas Identification of protective measures and operating instructions for employees

Planning steps

photo: DMT Dortmund

photo: LETmeschede

Fire protection / explosion protection

For all reactive dust types investment in explosion-protected systems engineering under economic aspects and consideration of risk analyses and feasibility studies is regulated by law. Which possible solution applies in the concrete application must be determined on site.

Risk analyses Feasibility studies Economic aspects

Integrated concept (globale system solutions)

Protective measures

Fire protection / explosion protection

Primary protective measures Sufficient ventilation Concentration control (observe UEG/OEG) Replace medium with non-flammable one Vacuum

Secondary protective measures Prevent ignition sources Hot surfaces, Open flames, Mechanically generated sparks, Stray electric currents, Lightning etc.

Structural preventive measures according to DIN EN 14034 determination of explosion characteristics of dust clouds – protective measures

Pressure-discharging building design according to DIN EN 14491 Maximum explosion pressure rise resistant building design according to

DIN EN 14034 Pressure-resistant building design according to DIN EN 14034 Inhibiting building design according to DIN EN 14034 Wet separation of dust by dampening in wet separator Solid matter neutralization by addition of inert dust, e.g. rock salt or

sodium sulfate

Fire protection / explosion protection

Explosion-proof filter systems

If an explosion or ignition sources can not prevented, the following protection measures should be taken:

explosion resistant

construction

explosion pressure-shock resistant

construction

explosion-suppressing

construction

Product range from A-Z

Comprehensive range!

Separator o Cyclone o Activaded carbon filter

Work tables o With / without extraction

working cabins o With / without soundproofing o With / without integrated extraction and filtration

Dust separation systems o Construction materials industry, glass & ceramics o Metal-processing industry o Chemical industry o Synthetic materials industry o Electrical industry o Food industry o Recycling materials

Dust separation systems with fire protection o With / without VDS certification o Spark detection and extinguishing system o Inert gas extinguishing systems o Powder extinguishing systems

Detection elements o Extraction arms o Extraction cranes o Extraction hoods o Extraction nozzles o Welding fume protective shield

Explosion-protected filter and extraction systems (VDI 2263, now DIN EN 14034)

o Explosion pressure resistant o Pressure-discharging o Explosion-inhibiting o Explosion decoupling

Working table height adjustable

Exhaustion construction materials industry

Extraction arm

Explosion-protected filter system

Comprehensive range!

Product range from A-Z

Filter separators o Cartridge filters o Hot gas filters o Plate filters o Pleated filter plates o Particulate filters

MSR technology o Control cabinet construction o SPS control o Control systems o Visualization

Oil and emulsion spray separators o Deep filters o Pocket filters

Manufacture of standard systems in series and small series

o Emulsion spray separator o Cartridge filters

Security systems o Gas monitoring systems o Solvent monitoring systems o Air mass monitoring o Oxygen concentrate gas monitoring o Dust concentration monitoring

Central dust extraction systems o for materials handling

Supply air and extraction systems o with waste heat recovery

Cartridge filter

Control cabinet

Cartridge filter PFJ serie

Oil and emulsion spray separator EA serie

Central dust extraction system

Full Service

The full package offer!

Cost pressure increases continuously in the industry. Now it makes sense to raise resources and to preserve others. You can achieve both with a full service maintenance agreement for your ventilation and dust extraction systems, which are deployed in-process or process-integrated: Our service… Complete maintenance Regular inspection Proper re-conditioning Reliable supply of spare parts Cross-vendor competence

…means a benefit for you Increase the lifetime of your plant Productive time saving Maintenance costs optimizinig Increased labour and production safety Optimierung Ihrer Wartungskosten Compliance with BGR 121

Our service offer applies also for ventilation systems of third party manufacturers.

The full package offer!

Full Service

Industrial ventilation and dust separation systems affect work flow and working atmosphere. Since many years LET®meschede pursues the philosophy “service

with system”, since this means entrepreneurial foresight. With a full service agreement you place the responsibility for your high-quality ventilation and filter technology in competent hands. Our service technicians are always there for you! We recommend – you decide!

Your benefits: We care for your ventilation systems; this means for you: Reduced workload Time saving Cost optimization We communicate semi-annually to arrange the next inspection date. Maintenance is documented in an inspection book. In addition the LET service technician leaves a test certificate for efficient system functionality.

Your benefits at a glance

A reliable partner!

Specialist extraction systems to protect your employees and increased value creation

Compact systems in industrial design, developed through practice - for the practice

Detailed on-site consultation

Problem solution competence with short ways

Fair and competitive price level enables you to calculate your success

Short and reliable delivery times increase your planning reliability

Terms and conditions adjusted to your individual requirements

Plant engineering and construction, service and maintenance from one source ensures the safety of your production process

An excerpt from our reference list

More than just a supplier!

AUDI AG BMW AG

Daimler AG

DB Fahrzeuginstandhaltung GmbH Deutsche Edelstahlwerke GmbH

DURA Automotive Body and Glass Systems GmbH

Lufthansa Technik AG Marinearsenal Kiel Nordex Energy GmbH

Salzgitter Mannesmann Line Pipe GmbH

Schmitz Cargobull AG

Siemens AG Power Generation

Viessmann Werke GmbH & Co. KG Volkswagen AG

We are there for you!

DISTRIBUTION

Roland Vormann

Tel.: 0291 / 99 54 – 32

Fax: 0291 / 99 54 – 54

Mail: roland.vormann@let-meschede.de

Web: www.let-meschede.de

ELECTRICAL ENGINEERING

Peter Gödde

Tel.: 0291 / 99 54 – 16

Fax: 0291 / 99 54 – 54

Mail: peter.goedde@let-meschede.de

Web: www.let-meschede.de

CONSTRUCTION

Abteilung Engineering

Tel.: 0291 / 99 54 – 0

Fax: 0291 / 99 54 – 54

Mail: info@let- meschede.de

Web: www.let-meschede.de

SERVICE & SPARE PARTS

Stephanie Leisse

Tel.: 0291 / 99 54 – 14

Fax: 0291 / 99 54 – 54

Mail: service@let-meschede.de

Web: www.let-meschede.de

Your contact partners