Laboratory Rubber Small Open MillGuangdongManufacturerPurpose: Laboratory rubber mixing machine. This instrument is designed for use in universities, chemical research institutions, and internal sample development within enterprises; often used in conjunction with other instruments;

This machine functions as an experimental film blowing machine for mixing, plasticizing, color matching, and sampling testing of rubber, silicone, plastic, and other compound formulations. Its advantages include low cost, no noise, cleanliness, safety, low energy consumption, and ease of use.

(Dongguan JiuTong Machinery Co., Ltd.)

SK-120 Twin-Roll Plastic Mixing Machine Parameters:

1.Mixing Capacity: 0.2--3kg/batch.

2.Roller Specification: ф120mm×L 320mm

3.Temperature Control Range: ≤300℃

4.Heating Method: Electric Heating

5.Temperature Control Accuracy: ±2℃ (The temperature controller uses original Taiwanese microcomputer control system, with automatic internal constant calculation, high precision, time-saving. Over-temperature automatic alarm).

6.Roller Speed: 23 rpm (forward rotation)

7.Roller Speed Ratio: 1:1.27

8.Roller Gap: 6mm.

9.Roller Hardness: 50-70 RHC.

10.Safety Device: Multiple touch-type emergency stop switches at front and rear, automatic reverse braking in emergency.

SHJ-20 Twin-Screw Mixing Extrusion Unit:

A、SHJ-20 Twin-Screw Extruder Length-to-Diameter Ratio 40:1; Feeder 0.75KW;

1、 Gear Reduction Box

1）Reduction Ratio: 3:1

2）Output Shaft Speed: 0~500rpm

3）Input Shaft Speed: Max1500rpm

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

2、 Main Motor

1）Main Motor: 4KW (AC motor)

2）Motor Speed (MAX): 1500RPM

3、 Screw

1）Screw Diameter: Φ21.7mm

2）L/D=40:1

3）Screw core shaft is made of 40CrNiMoA material, thread elements and core shaft are connected by involute spline, high strength, large load capacity, easy disassembly and assembly.

4）Screw elements are made of 38CrMoAlA nitrided steel, fully nitrided, surface hard chrome plated (roughness grade 10).

5）Overall hardness about HRC65~75.

4、Plastic Extruder Barrel

1）Barrel material is selected high-quality 38CrMoAlA nitrided steel, fully nitrided, surface hard chrome plated (roughness grade 10). Hardness about HRC65-75, barrel length L=120mm/section;

One section is the feeding barrel, three sections are reserved for auxiliary

Used for laboratory mixing formulations, sample machines are divided into single and twin-screw extrusion pelletizers (relatively higher price, convenient mixing, after formulation mixing, input into the machine for plasticizing, extrusion, cooling and pelletizing, then can be pressed with a sheeting machine or other instruments for testing, providing convenience for the laboratory; ) Technical consultation and sales service hotline: 138-2574-4148. Manager Shao.