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.
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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.
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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!
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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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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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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 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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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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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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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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LEWA ecoflow® diaphragm metering pump
LEWA ecoflow is the innovative and universal metering pump with DPS diaphragm protection system in a tried-and-tested modular system. Suitable for numerous applications, the ecoflow is our real all-around talent, relied on by customers from all industries.
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LEWA ecoflow ® packed plunger metering pump
The LEWA ecoflow packed plunger metering pump is the robust, tried-and-tested metering pump for unproblematic fluids. It is available in a wide variety of models and used by well-known customers for various processes.
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LEWA ecosmart® diaphragm metering pump
LEWA ecosmart is an innovative, compact and multiplexing diaphragm metering pump at a smart price. With it, we of course guarantee our renowned LEWA quality and offer you our expertise derived from 70 years in the market.
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LEWA ecodos® mechanical diaphragm metering pump
LEWA ecodos is an absolutely reliable, economical and highly adaptable metering pump, especially where diaphragm actuation is not wanted. Here, we also rely on our tried-and-tested modular system in designing the perfect pump for you.
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LEWA intellidrive® diaphragm metering pump
Design the suction and discharge strokes of the metering pump to meet your specific requirements! With LEWA intellidrive technology, you can model pumping characteristics individually.
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LEWA FC laboratory pumps
Metering pumps for very small flow rates. The FC micro-metering pumps for pressures up to 400 bar were developed specifically for laboratories and test centers.
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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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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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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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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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Chemineer Mixing technology
Chemineer agitators cover a wide range of products. From turbine agitators to impellers, these agitators can be used in almost any process that requires liquid or gas agitation.
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