Laboratory Twin-Screw Granulation Line

Name: Laboratory Twin-Screw Granulation Line
Brand: TestShine

Laboratory-Grade Twin-Screw Granulation Line for Plastic Mixing and Extrusion Processing

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TS-8177-ZB

Laboratory Twin-Screw Granulation Line

Laboratory-grade twin-screw granulation line engineered for plastic mixing, plasticization, and extrusion processing trials, supporting plasticizing homogenization, coloring, sampling, filling, and material modification.

Key Specifications

Screw Diameter

Φ20 mm

Temperature Range

Normal Temperature–300°C

Temperature Accuracy

±1°C

Screw Rotation Speed

0–300 rpm

Length-to-Diameter Ratio

40:1 Optional

Feeding Speed

0–50 rpm

Twin-Screw GranulationPlastic MixingPlasticizationExtrusion ProcessingMaterial Modification

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Global Shipping

50+ countries

2-Year Warranty

Parts & service

Expert Support

Dedicated team

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Product Information

The TS-8177-ZB is a laboratory-grade twin-screw granulation line engineered for plastic mixing, plasticization, and extrusion processing trials. Built around a PLC-based programmable touch screen and an intuitive human-machine interface, the system supports plasticizing homogenization, coloring, sampling, filling, and material modification, making it well suited to research, formulation development, and small-batch processing applications.

Key Features

Building-Block Screw Configuration

The screw assembly follows a building-block screw combination approach, with conveying blocks, mixing blocks, shearing blocks, kneading blocks, and countercurrent blocks that can be combined in different ratios to meet the requirements of different extrusion processes.

PLC Programmable Control

PLC programmable TFT touch screen display with human-machine interface operation provides dynamic display of pressure-material temperature-time curve changes, with functions for temperature, speed, pressure, feeding, dehumidification, cooling, start, stop, fault query alarm, interlocking, and control.

Independent Barrel Temperature Control

The cylinder segments use a soft water circulation cooling system, with each segment's cooling water flow rate independently adjustable, enabling independent temperature control at each segment of the cylinder.

Forced Metering Feeding and Granulation

A twin-screw metering type forced feeding system with a horizontal agitator provides uniform, stable feeding, while the granulation die head features a built-in fast screen changer and head hinge opening device.

Technical Parameters

Parameter	Specification
Output	According to the raw material formulation process
Temperature range	normal temperature～300℃
Temperature accuracy	±1℃
Screw diameter	Φ20 mm
Length-to-diameter ratio	40:1 optional
Screw rotation direction	Mesh type parallel and same direction
Screw rotation speed	0-300rpm, frequency controlled
Screw	The mandrel is manufactured from 40 CrNiMoA chromium-molybdenum alloy tool steel, while the threaded components are made of W6Mo5CR4V2 wear-resistant alloy steel with a hardness of HRC60. Conveying blocks, mixing blocks, shearing blocks, mixing blocks, kneading blocks, and countercurrent blocks form a series of building-block-style components connected via the involute spline of the mandrel, and they can be combined in any ratio to meet the requirements of different extrusion processes.
Barrel	The 5-stage barrel is made of 45# nitrided steel forgings, lined with a301 wear-resistant alloy sleeve, hardness HRC60. It is processed through nitriding, quenching and tempering, and ultra-fine grinding, achieving a surface roughness of Ra≤0.4μm along with strong wear resistance and corrosion resistance.
Combination method	The screw assembly follows a building-block screw combination approach, the barrel is of multi-section combined construction, and the system includes a self-cleaning function.
Heating zone	5 cast aluminum heaters are fixed at the barrel, with 1 additional heater at the handpiece; each section provides 1 kw of heating power, with a security wind cowl fitted over the exterior.
Cooling zone	The cylinder segments use a soft water circulation cooling system, with each segment's cooling water flow rate independently adjustable. The system is equipped with a self-priming pump, a 304 stainless steel water storage tank, water piping, and electromagnetic valve components, enabling independent temperature control at each segment of the cylinder.
Vacuum zone	A water circulation vacuum degassing device, equipped with water ring vacuum pumps, a vacuum gauge, and regulating valve components, forms a non-clog exhaust system.
Feeding device	A twin-screw metering type forced feeding system with a horizontal agitator provides uniform, stable feeding that is not easily bridged. Feeding speed is variable-frequency adjustable from 0-50rpm, and the unit is fitted with a slide rail type fast feeding device.
Die-head pressure	Dynisco's high-precision temperature and pressure sensor monitors the temperature and pressure changes of the melt in the nose, interlocking with and controlling operation of the main engine, and providing overpressure protection.
Granulation die head	Cr12 chrome-molybdenum alloy head, nitride hardness HRC60, with a strand count and granulation diameter of 3-Φ3, featuring a built-in fast screen changer and head hinge opening device.
Reduction gearbox	High speed heavy hard teeth surface gear transmission, with the gear reduction and torque distribution box forming an integrated structure. Internal transmission parts use imported bearings and oil seals with oil splash lubrication for smooth operation.
Drive motor	Precision heavy geared motor with constant torque power output control.
Main frame	The overall frame adopts steel welding for a firm structure that resists deformation. Mobile brake casters are fitted at the bottom of the rack for convenient installation and relocation.
Safeguard	Protection functions include: melt pressure interlocked with the main unit for overpressure alarm protection; melt temperature interlocked with the main unit for low-temperature protection during startup; and feeding interlocked with the main unit for sequential protection during startup.
Control system	PLC programmable TFT touch screen display with human-machine interface operation, dynamic display of pressure-material temperature-time curve changes, and functions for temperature, speed, pressure, feeding, dehumidification, cooling, start, stop, fault query alarm, interlocking, and control.
Power	3∮，AC380V，50Hz Three-phase five-wire
Dimension	1950×500×1500（W×D×H）mm
Weight	About 285Kg