Plastics
With LEWA Products Throughout the Production Process
LEWA supplies pumps and systems to support you in the many different production steps involved in plastics processing. We assist you in the processing of polyethylene, polypropylene, polyurethane, and polyamide. What's more, we also supply you with metering systems for compounding as well as for catalyst and foaming agent metering.
We offer you special expertise for all compounding processes in the plastics processing industry such as the addition of waxes, flame retardants, and lubricants.
Areas of Application in the Plastics Processing Industry
Our experts are on hand with help and advice and will work with you to develop custom metering solutions. Our expertise in polyethylene processing in particular is in high demand worldwide. In the following table, you can see applications for the metering of reactants and catalysts.
Examples of reactants and catalysts | Examples of plastics |
---|---|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
LEWA supports you in the further processing and refining of plastics. This includes compounding, i.e., during the addition and metering of flame retardants and lubricants, plasticizers, colors, antistatic agents, and other additives for property optimization, as well as foaming agent metering during foam extrusion.
Base plastic | Examples of products |
---|---|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Solutions for Plastics Processing
Our LEWA ecofoam system provides a tested and modular metering system for your specific application in the field of physically foaming polyolefins such as polyethylene processing.
This system is used worldwide by leading manufacturers and is characterized by controlled and exact metering. Not only does this ensure that the foamed product is always of a consistently high quality, it also significantly reduces scrap.
Advantages at a Glance
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
Additive metering for plastics
LEWA provides system solutions for metering additives for plastics. Ask our additive metering experts for more information!
More DetailsPolymerization
LEWA manufactures metering pumps and metering systems for polymerization which optimally meet the necessary requirements. We are happy to help.
More DetailsExtruder 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.
More DetailsProduction of melamines
LEWA metering and process diaphragm pumps meet the specific demands for the production of melamine (trimerization of urea). Consult us!
More DetailsChemical 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!
More DetailsProduction of polyurethane
LEWA is your reliable production process partner for conveying preliminary and intermediate products during the production of polyurethane.
More DetailsMetering of caprolactam
Completely heatable process diaphragm pumps, optimized for continuous operation, are required for the production of caprolactam as a base for polyamide 6.
More DetailsMetering 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.
More DetailsPolymerization 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.
More DetailsProducts
LEWA ecoflow®: The Leading Diaphragm Metering Pump for Precision Fluid Management
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.
More DetailsLEWA ecoflow®: Your Solution for Advanced 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.
More DetailsLEWA ecosmart®: Precision-Engineered Diaphragm Metering Pumps for Efficient Fluid Control
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.
More DetailsLEWA ecodos®: Robust Mechanical Diaphragm Metering Pumps for Precision Dosing
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.
More DetailsLEWA intellidrive®: Cutting-Edge Diaphragm Metering Pump Technology for Precision Fluid Management
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.
More DetailsLEWA FC: High-Precision Laboratory Metering Pumps for Advanced Research Applications
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.
More DetailsNIKKISO 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.
More DetailsWilden standard air-operated diaphragm pump
As the inventor of the compressed air-operated double-diaphragm pump, Wilden Pump & Engineering Co. introduced the first pump of this design in 1955.
More DetailsLEWA ecofoam® Blowing Agent Metering System
Redundantly designed, absolutely leak-proof system working in combination with extruders for metering various blowing agents in plastic production.
More DetailsCustomer-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.
More DetailsCustomer-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.
More DetailsRichter shut-off, control, and safety valves
The Richter product range is practically seamless for corrosion-resistant shut-off, safety, sampling, check and sight-glass valves as well as control devices for control and shut-off tasks.
More Details