Laboratory Small Twin-Screw Extruder Pelletizer

Laboratory Small Nanjing Twin-Screw Extruder Granulator, Twin-Screw Testing Machine Production Line Manufacturer Equipment: New Small Output Twin-Screw Testing Machine Manufacturer; Various Extruder Repairs for Users Around Dongguan, Screw and Barrel Supply; Custom Processing Services. Technical Agreement Provided by Hengtong Equipment: Manager Shao 138-257-44148.

The SHJ series parallel co-rotating modular twin-screw is mainly used for plastic granulation production, widely applied in homogeneous plasticization, coloring, blending, high filling, reinforcement modification, and recycling of various plastic mixture formulas and polymer materials; Main barrel and screw: The co-rotating parallel twin-screw extruder barrel and screw are designed and manufactured based on the modular principle. According to the processing material system and process formula requirements, the length-to-diameter ratio barrel structure, screw arrangement, vent position, feeding method, electrical control method, etc., can all be optimally and reasonably configured to achieve multifunctionality and versatility, adapting to the processing of various polymer materials.

This unit's small sample granulator is designed for the basic formula of conductive black masterbatch, with 20% powder + 80% pellets mixed feeding for granulation. The material performance requires the unit operating temperature to be about 350°C, and this unit can withstand high temperatures up to about 500°C. The screw and barrel are surface-hard chrome plated, offering corrosion resistance and high-temperature resistance, with a capacity of about 3-8 kg/hour.

II. SHJ-20 Twin-Screw Mixing Extruder Technical Parameters

1. Unit Configuration

A. SHJ-20 Twin-Screw Mixing Extruder Unit with length-to-diameter ratio 40:1; Feeder 0.75KW;

1. Gear Reduction Box

1) Reduction Ratio: 3:1

2) Output Shaft Speed: 500rpm

3) Input Shaft Speed: Max 1500rpm

4) The main drive box integrates reduction and torque distribution, adopting a parallel three-shaft design with a compact structure. Reduction, torque distribution, and radial bearings of the two output shafts all use NSK bearings.

2. Main Motor

1) Main Motor: 5.5KW (AC Motor)

2) Motor Speed (MAX): 1500RPM

3. Screw

1) Screw Diameter: Φ21.7mm

2) L/D=40:1

3) Screw is parallel co-rotating modular type

4) Screw mandrel is made of 40CrNiMoA material, with thread elements and mandrel connected by involute spline, offering high strength, large load capacity, and convenient disassembly and assembly.

5) Screw elements are made of high-quality 38CrMoAlA nitriding steel, fully nitrided, with surface hard chrome plating (roughness grade 10).

6) Overall hardness about HRC65~75.