Company Introduction. LET Meschede GmbH Auf m Brinke Meschede / Germany

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Company Introduction LET Meschede GmbH Auf m Brinke 17 59872 Meschede / Germany Tel.

1 Company Introduction LET Meschede GmbH Auf m Brinke Meschede / Germany Tel.: 0291 / Fax: 0291 / Mail: info@let-meschede.de Web:

2 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. Ralf Kuhlmann Manager 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.

3 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

4 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 Designed for industrial production (100% ED) Favourable operating costs Low noise emission Separation efficiency up to 99,95% Individual

5 Product examples Oil and emulsion spray separator EA serie Designed for industrial production (100% ED) Favourable operating costs Low noise emission Separation efficiency up to 99,95% Individual fitting Easy servicing Cartrige filter PFJ serie Designed for industrial production Variable connection options Easy in-house transport Separation efficiency up to 99,90% Favourable operating costs Individual fitting Easy servicing

6 Product examples Suction of a grinding / polishing machine for stainless steel

7 Product examples Stainless steel welding fume suction Cartridge filter units for a volume flow of 30,000m³/h each

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

9 Product examples Suction of LDS cabins (wire arc spraying) Suction and filter units for wire arc spraying with argonextinguishing system

10 Product examples Extraction and deposition plant for insulation materials 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.

external pressure discharge for cabin extraction with 12,000m³/h volume

11 Product examples Extraction and deposition plants for CFRP/GRP abrasive dust Explosion-protected filter centers according to DIN EN 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.

Product examples Suction system for processing

and lower line Housing of the wet room and activation

fan for chip extraction on the cross cutter.

12 Product examples Suction system for processing pentane 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.

13 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

14 Oil and emulsion spray separator EA 12,000 Product examples

rate via cartridge filter plant in explosion-protected design.

15 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.

in the working space Filter center with safe pressure discharge in

16 Product examples Movable grinding and extraction cabin for GRP rotor blades Movable cabin with filter center for safe pressure discharge in the working space Filter center with safe pressure discharge in working space via indoor vent according to ATEX 100a and FSA-certified.

17 Collectors in a grinding area Product examples

18 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.)

19 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.

20 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

Which possible solution applies in the concrete application must be determined on site.

21 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. Planning steps Risk analyses Feasibility studies Economic aspects Integrated concept (globale system solutions) photo: DMT Dortmund photo: LET meschede

22 Fire protection / explosion protection Protective measures 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 determination of explosion characteristics of dust clouds protective measures Pressure-discharging building design according to DIN EN Maximum explosion pressure rise resistant building design according to DIN EN Pressure-resistant building design according to DIN EN Inhibiting building design according to DIN EN Wet separation of dust by dampening in wet separator Solid matter neutralization by addition of inert dust, e.g. rock salt or sodium sulfate

explosion resistant construction explosion

23 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

without soundproofing o With / without integrated extraction and filtration Dust separation systems o Construction materials

Food industry o Recycling materials Working table height adjustable Exhaustion construction materials industry Dust separation

systems o Powder extinguishing systems Detection elements o Extraction arms o Extraction cranes o Extraction hoods o Extraction

24 Comprehensive range! Product range from A-Z 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 Working table height adjustable Exhaustion construction materials industry 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 Extraction arm 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 Explosion-protected filter system

filters MSR technology o Control cabinet construction o SPS control o Control systems o Visualization Oil and emulsion spray separators o

separator o Cartridge filters Security systems o Gas monitoring systems o Solvent monitoring systems o Air mass monitoring o Oxygen

25 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 Control cabinet Cartridge filter 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 Cartridge filter PFJ serie Oil and emulsion spray separator EA serie Central dust extraction systems o for materials handling Supply air and extraction systems o with waste heat recovery Central dust extraction system

The full package offer! Full Service Cost pressure increases continuously in the industry. Now it makes sense to raise resources and to preserve others.

26 The full package offer! Full Service 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.

27 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.

28 A reliable partner! Your benefits at a glance 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

29 More than just a supplier! An excerpt from our reference list 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

30 We are there for you! Your contact partners DISTRIBUTION Roland Vormann Tel.: 0291 / Fax: 0291 / Mail: roland.vormann@letmeschede.de Web: ELECTRICAL ENGINEERING Peter Gödde Tel.: 0291 / Fax: 0291 / Mail: peter.goedde@letmeschede.de Web: CONSTRUCTION Abteilung Engineering Tel.: 0291 / Fax: 0291 / Mail: info@letmeschede.de Web: SERVICE & SPARE PARTS Stephanie Leisse Tel.: 0291 / Fax: 0291 / Mail: service@letmeschede.de Web:

Explosion prevention and explosion protection according to ATEX guidelines. Safe extraction and separation of explosive dust

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