Laboratory twin-screw extruder

A compact laboratory twin-screw extruder, featuring a large touchscreen control panel, a main grey and silver extrusion unit, a top-mounted feed hopper, and an attached downstream processing line.
precision_manufacturing Laboratory & R&D Compounding

Rumtoo Lab Extruder RLE-20Plus

Precision co-rotating twin-screw extruder engineered for advanced material research, polymer compounding, color masterbatch testing, and pilot-scale production. Innovate faster with reliable and flexible lab-scale formulation trials.

  • check_circle Siemens PLC touch screen control and OMRON precision temperature regulation.
  • check_circle Modular segmented screw & barrel design for quick L/D and geometry changes.
  • check_circle Low material consumption (2–10 kg/h) ideal for high-cost experimental polymers.
Rumtoo Lab Extruder Machine

Core Advantages

Designed to deliver industrial-scale compounding accuracy at research-scale sample volumes.

  • Precision Control

    Features Siemens PLC touch screen control and OMRON AI temperature units with PID self-tuning for high repeatability.

  • Reliable Performance

    Equipped with a premium WEG motor and a high-torque gearbox with forced lubrication for continuous operation.

  • Modular Flexibility

    The building-block screw element design allows easy geometry reconfigurations to suit various polymers and fillers.

  • Durable Metallurgy

    Constructed with high-strength 40CrNiMoA alloy steel shafts and nitrided barrels for maximum wear and corrosion resistance.

From Raw Material to Perfect Pellets

A complete automated pilot compounding workflow in four synchronized steps.

  1. Step 1Metering & Feeding

    Polymers, pigments, and additives are accurately dosed into the main feed throat by a precision twin-screw metering feeder.

  2. Step 2Compounding & Extruding

    Materials are thoroughly sheared, melted, homogenized, and degassed under vacuum in the co-rotating twin-screw barrel.

  3. Step 3Cooling & Drying

    The extruded polymer strands pass through a 2-meter stainless steel water bath for rapid cooling and an air knife for moisture removal.

  4. Step 4Precision Pelletizing

    The dried strands are cleanly cut into uniform, cylindrical granules by a high-speed variable-frequency strand pelletizer.

Detailed Engineering Features

Sub-system integration built to industrial compounding standards on a laboratory scale.

tune

Advanced Control System

Siemens PLC and touch screen interface with OMRON AI temperature controllers and full interlock safety protection.

settings

High-Performance Gearbox

Integrated reduction and torque distribution with hardened ground gears, forced oil lubrication, and NSK/IKO bearings.

extension

Modular Screw & Barrel

Segmented barrel with natural and vacuum vent ports, CNC-machined nitrided elements, and high-torque alloy spline shafts.

layers

Integrated Auxiliaries

Built-in soft water circulation cooling, stainless steel vacuum degassing station, and vibration-damped base frame.

Technical Specifications

Standard operational parameters for the Rumtoo RLE-20Plus laboratory twin-screw extruder.

Parameter Specification
ModelTSH-20Plus-4kW
Screw Diameter22 mm
Length/Diameter Ratio (L/D)42 : 1
Production Capacity2 – 10 kg/h
Screw Speed50 – 600 rpm
Main Motor4 kW (WEG Brand AC Motor)
Total Installed Power~12.96 kW
Heating Power~6.2 kW
Power Supply380V ± 10%, 3-Phase 5-Wire, 50Hz
Control SystemSiemens PLC & Touch Screen HMI
Pelletizing SystemWater-cooled strand pelletizing (2 m bath)
Vacuum DegassingBuilt-in vacuum pump (0.55 kW)
Cooling SystemBuilt-in closed soft water circulation (0.37 kW)

Get a Custom Solution & Quote

Our team is ready to help you configure the perfect lab extruder for your specific research needs. Send us your polymer parameters for a detailed proposal.

Contact Form

Author: Plastic Recycling Machine - Rumtoo

Rumtoo Plastic Recycling Machinery is a premier manufacturer specializing in high-performance solutions for PET bottle and PP/PE film recycling. With over 20 years of expertise, we offer an integrated range of equipment, including advanced Washing Systems, Pelletizing Lines, Plastic Shredders, and Crushers. Our technology is specifically engineered to transform challenging waste—such as soiled LDPE films and PP non-woven bags—into high-purity plastic granules. Today, Rumtoo supports hundreds of recycling facilities worldwide, processing thousands of tonnes of plastic monthly and driving global circular economy goals.