Pumps and Systems for the Plastics Industry

LEWA offers a comprehensive range of high-quality pumps and custom-built systems specifically designed for the plastics industry.expand_more  Our solutions, including metering pumps and complete processing systems,  ensure efficient and accurate handling of various materials throughout the plastics manufacturing process.  Whether you require precise dosing of additives or reliable transfer of resins, LEWA can create a custom system to meet your specific needs.  Learn more about how LEWA can optimize your plastics production

Plastics

With LEWA Products Throughout the Production Process

LEWA empowers manufacturers in the plastics industry with a comprehensive range of pumps and custom-built systems designed to optimize every stage of production.  We cater to various materials like polyethylene, polypropylene, polyurethane, and polyamide, offering specialized metering systems for compounding, catalyst handling, and even foaming agent applications.

Our expertise extends beyond just pumps.  LEWA provides in-depth knowledge of compounding processes, ensuring the precise addition of waxes, flame retardants, and lubricants to achieve the desired material properties.

LEWA ecofoam metering system for the plastics industry

Optimizing Every Stage: LEWA's Pump Systems for Plastics Processing

Our team of experts stands ready to assist you throughout the process, offering valuable advice and collaborating with you to develop custom metering solutions tailored to your specific needs in the plastics industry.  LEWA's renowned expertise, particularly in polyethylene processing, is valued worldwide. The following table provides a glimpse into the diverse applications LEWA's metering systems can address within the plastics processing industry.

Examples of reactants and catalystsExamples of plastics
 
  • Vinyl acetate
  • Propylene
  • Butane
  • Hexane
  • Teal, T.E.A.
 
 
  • Varieties of polyethylene
    1. LDPE
    2. MDPE
    3. HDPE
    4. LLDPE
 
 
  • Donor
  • Peroxide
 
 
  • Polypropylene
 
 
  • Catalysts
 
 
  • Polyvinylchloride (PVC)
  • EPVC
  • SPVC
 
 
  • Amine
  • Vinyl acetate
 
 
  • Ethylene vinyl acetate (EVA)
 
 
  • Dinitrotoluene (DNT)
  • Raney nickel catalyst
 
 
  • Polyurethane
 
 
  • Catalysts
 
 
  • Polyacrylate
 
 
  • Caprolactam
 
 
  • Polyamide
 
 
  • Urea, liquid ammonia
 
 
  • Melamine
 

 

LEWA goes beyond pumps to become your partner in optimizing the entire plastics processing workflow.  Our expertise empowers you in crucial stages like compounding, where we ensure precise metering of additives like flame retardants, lubricants, and more, using our advanced pump systems.  This precise control allows you to achieve the desired material properties for your final product.  LEWA's solutions extend to foaming agent metering for foam extrusion processes, providing a comprehensive range of tools to streamline your entire plastics production line.

Base plasticExamples of products
 
  • LDPE (examples)
 
 
  • Shrink wrap for books, bundles, and pallets
  • Wrapping film for hand towels, fabrics, PET bottles
  • Film for baked goods, meat, coffee, frozen foods
  • Packaging for applications such as milk cartons and "bag-in-box"
  • Laminated paper and highly stress-resistant containers for industrial use
 
 
  • Polystyrene foam (PS foam)
 
 
  • Insulation boards and food packaging trays
 
 
  • Polyethylene foam (PE foam)
 
 
  • Packaging films, impact sound insulation, ceiling sealants, and insulation tubes
 
 
  • Polyurethane foam (PU foam)
 
 
  • Insulation boards, insulation tubes
 
 
  • Foam granules (EPS/EPP/EPE)
 
 
  • Reusable transport packaging and molded parts for bumper cores
 
 
  • Polycarbonate
    (PC)
 
 
  • Safety helmets, visors
  • Lamp covers for the automotive industry
 
 
  • Other raw material bases
 
 
  • Plastic sheathing for cables
  • Rubber production
 

Solutions for Plastics Processing

The LEWA ecofoam system stands out as a reliable and modular metering solution specifically designed for physically foaming polyolefins, such as polyethylene.  Trusted by leading manufacturers worldwide, ecofoam offers exceptional control and precision in metering, resulting in several key benefits for your plastics production:

Consistent High-Quality Products: Precise metering ensures your foamed plastics consistently meet the highest quality standards.
Reduced Scrap Rates: Minimize material waste with ecofoam's accurate control, leading to significant cost savings.

LEWA ecofoam metering system for the plastics industry

Advantages of the LEWA Pumps and Systems in the Plastics Industry

High end pumps, equipment and systems

We deliver high-end pumps integrated into complete systems and units for your specific applications. In doing so, we of course rely on the tried-and-tested LEWA quality.

Flexible application

High variability in operation in terms of pressure, temperature, flow rate and fluid properties with high metering accuracy guarantee a wide range of applications.

Tried and tested modular system

We design our systems and units in modular design with numerous engine and pump head combinations for different applications.

Special materials

On request, we can build systems with special materials such as Hastelloy, titanium, duplex stainless steel or further materials. If you are interested, please contact our product manager.

Heating and cooling devices

We respond flexibly to extreme requirements: Pump heads and the complete chemical pump can be equipped with a heating or cooling device, if necessary.

Patented sandwich diaphragm

Our patented diaphragm metering pumps use metal or PTFE sandwich diaphragms with Diaphragm Protection System (DPS) for maximum operational safety.

Easy to clean

An especially important advantage for pharmaceutical and food industry is that our systems can be quickly and easily cleaned with cleaning chemicals or hot steam.

Explosion protection

Safety comes first: LEWA supplies systems and units, also available with explosion-proof motors for safety of your employees.

International standards

LEWA pumps, systems and units are compliant with major international standards such as DVGW G280, WHG, PED, ISO 9001, ASME, ATEX and TA-Luft. Of course, you can also define your own standards.

Applications

Production of plastics for example polyethylene

Additive metering for plastics

LEWA provides system solutions for metering additives for plastics. Ask our additive metering experts for more information!

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Polyethylene production

Polymerization

LEWA manufactures metering pumps and metering systems for polymerization which optimally meet the necessary requirements. We are happy to help.

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Foaming agent metering in Extruders

Extruder blowing agents

Precise metering of blowing agents into extruders with LEWA systems. We provide you insights on the metering accuracy and process optimization solutions from LEWA. 

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Melamine production

Production of melamines

LEWA metering and process diaphragm pumps meet the specific demands for the production of melamine (trimerization of urea). Consult us!

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Chemical injection in the Oil and Gas Industry

Chemical metering in high-pressure cleaning systems

LEWA metering and process diaphragm pumps meet the specific demands for the production of melamine (trimerization of urea). Consult us!

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Polyurethane production - Industrial foams

Production of polyurethane

LEWA is your reliable production process partner for conveying preliminary and intermediate products during the production of polyurethane.

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Caprolactame production

Metering of caprolactam

Completely heatable process diaphragm pumps, optimized for continuous operation, are required for the production of caprolactam as a base for polyamide 6.

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Silane metering

Metering of silane

LEWA systems meter any silane type reliably, precisely as well as in constant consistency and purity, regardless of chemical or physical attributes or process requirements.

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Polymerization in EVA reactors with process pumps

Production of ethylene vinyl acetate (EVA) with LEWA process pumps. We provide you with the right pump and advice for your application.

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Products

LEWA ecoflow diaphragm metering pump all around talent

LEWA ecoflow® Diaphragm Metering Pump

LEWA ecoflow: The Innovative Universal Metering Pump with DPS Diaphragm Protection. Trusted across all industries, this modular system pump excels in a wide range of applications. Experience unparalleled versatility and reliability with our ecoflow, the ultimate choice in metering pump technology.

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LEWA ecoflow packed plunger pump

LEWA ecoflow® Packed Plunger Metering Pumps

Opt for the LEWA ecoflow packed plunger metering pump, a robust and reliable choice for hassle-free fluid metering. Available in multiple models to suit diverse processes, it's the metering pump trusted by industry leaders for consistent performance.

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LEWA ecosmart diaphragm metering pump

LEWA ecosmart®: Diaphragm Metering Pumps

Experience the innovative LEWA ecosmart, a compact diaphragm metering pump offering multiplex capabilities at a competitive price. We assure the renowned LEWA quality, backed by our 70 years of market expertise. Choose LEWA ecosmart for smart metering pump solutions without compromising on quality or performance.

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LEWA ecodos diaphragm metering pump

LEWA ecodos®: Mechanical Diaphragm Metering Pumps

The LEWA ecodos metering pump delivers absolute reliability, cost-efficiency, and adaptability for applications preferring non-diaphragm actuation. Trust in our proven modular system to design the optimal metering pump tailored to your specific needs.

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LEWA intellidrive diaphragm metering pump

LEWA intellidrive®:Mechatronic Diaphragm Metering Pump Technology

Customize both suction and discharge strokes to fit your precise specifications with the LEWA intellidrive® diaphragm metering pump. This technology allows you to individually shape pumping characteristics, ensuring optimal metering for your applications.

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LEWA FC laboratory pumps

LEWA FC: High-Precision Laboratory Metering Pumps

Explore our precision metering pumps designed for micro-flow rates. The FC series, capable of handling pressures up to 400 bar, is tailor-made for laboratory and test center applications, offering unparalleled accuracy for small-scale fluid management.

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NIKKISO Non seal canned motor pump

NIKKISO NON-SEAL canned motor pump

The NIKKISO NON-SEAL canned motor pump has been designed specifically for the chemical industry. To do this, the centrifugal pump is designed in accordance with API 685.

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Versamatic air operated pump

Versa-Matic air-operated double diaphragm pump

Versa-Matic pumps feature easy handling, reliable operation, high performance, small size and low weight. They are also dry-run safe, self-priming over 7.5 m, submersible and capable of stepless adjustment using compressed air.

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LEWA ecofoam metering system

LEWA ecofoam® Blowing Agent Metering System

Redundantly designed, absolutely leak-proof system working in combination with extruders for metering various blowing agents in plastic production.

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LEWA production units

Customer-Specific Metering, Mixing or Filling Systems from LEWA

Customer-specific batch/continuous systems for your production process. Metering, mixing, filling, separating, controlling temperature: We work with you to develop the ideal process-related sequence and produce the system that fits your production process – right up to the end product.

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LEWA customer specific metering systems

Customer-Specific Metering Systems from LEWA

Turnkey metering system in closed loop control with monitoring and plausibility testing equipment. Your individually configured metering system with an optimally designed pump for fluid metering in automated processes.

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