Twin-Screw Extruder (SHJ25D)
Configuration of SHJ-25D Twin-screw Extruder
I. SHJ25D technical parameters
Twin-screw extruder length-diameter ratio 44: 1
Twin-screw extruder motor power11KW AC
Machine configuration
I) SHJ 25D twin-screw extruder
A. Gearbox(high speed and high torque series)
B. Lubrication oil cooling system
C. Motor of host machine
1) Motor of host machine: 11KW(AC ABB motor)
2) Motor speed ( MAX): 1500RPM
D. Screw
1) Screw diameter: Φ 25mm, max. Diameter D=Φ 25mm, min. Diameter d=Φ 16.1mm, D/d=1.55, center distance: A=21.2mm, torque: T=87 N. M, torque coefficient: T/A³ =9.13.
2) L/D =44: 1
3) Screw with modular structure
4) The screw core shaft is made of 40CrNiMoA, and the screw thread components connect with the core shaft in an involute curve, which features high intensity, large load, and easy disassembly and assembly.
5) The screw components are made of high quality high-speed tool steel, W6Mo5Cr4V2, that receives heat treatment with vacuum hardening at high temperature.
6) Whole hardness: HRC62-64
E. Charging barrel
1. The barrel body is made of #45 steel, and the “∞ ” shape hole is lined with wearing proof alloy a-101(Fe – Cr – Ni -B+Carbide), hardness: HRC60 – 64, barrel length: L = 100mm/section.
2. The first cylinder is used for feeding materials and forced feeding materials barrel, 5th cylinder for feeding glass fibres barrel, the 7th and 10th cylinder for vacuum barrel, the 11th cylinder for extrusion barrel and the other cylinders are of closed mouth type.
F. Heating system
Temperature control section charging barrel section type of heating piece
G…Vacuum Degasifier
H. Electrical control system(touch screen PLC control system. )
I. Interlock control system
1. Only after the oil lubrication system interlocks with the host machine, i. e., the oil pump starts up, can you start up the host machine.
2. Only after the feeding system interlocks with the host machine, i. e., the host machine starts up, can you start up the feeding machine.
3. When the pressure system interlocks with the host machine, i. e., reaches overpressure, both the host machine and feeding machine should stop operation.
4. When the electric current interlocks with the host machine, i. e., reaches over current, both the host machine and feeding machine should stop operation.
II) One set of thermal cutting auxiliary machine
III) Spare parts
II. Total price of the machine: USD32, 000 FOB Shanghai
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Process |
Representative materials |
Operating capability Kg/h(reference values) |
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Mixing nature-changing |
PE,PP,PS+SBS,PA+EPDM,PP+NBR,EVA +Silicon rubber, etc. |
10-25 |
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PE,PA,PC,CPE+ABS alloy,ABS+TPU,PBT+PET,PP+ PE, etc. |
10-25 |
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Filling nature-changing |
PE,PP,EVA, ect.+ Calcium carbonate talcum powder, titanic powder, ABS, PC, PS, etc.+ aluminum hydroxide, magnesium hydroxide ,antimony oxide. |
10-30 |
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PP, PA, ABS +ferrous powder, sulphuric powder, ceramic powder |
10-30 |
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Functional machine pellets |
PP, PA, ABS, PBT, etc+ anti-burning agent and other auxiliary agents, combustion-supporting machine pellets |
10-25 |
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PE, PP, PS, etc+ starch, de-composing machine pellets |
10-25 |
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PE+ fog-preventing dipper, stabilizer, dual-prevention machine pellets |
10-25 |
|
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PE, EVA=ABS, etc+ carbon black, black machine pellets |
5-20 |
|
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Colored machine pellets |
PE, PP, ABS, AS, PA, EVA, PET+ pigment and auxiliary |
10-25 |
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Intensified glass fibres and carbon fibres |
PP, PBT, ABS, AS, PA, PC, POM, PPS, PET, etc. +long fires, small fibres, carbon fibres, crystalitis and so on, etc. |
5-20 |
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Various cables |
HDPE, LDPE, LLDPE, MDPE, EVA, PVC, PP, etc. insulating cables, coatings, PE peroxide, silicon alkyl crossing cables, radialization crossing cables |
5-20 |
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Special materials |
EVA heat-melting glue, polyurethane, fluorin rubber, fluorine plastics, PP cigarette filtering material and TPR sole material |
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Reaction extruding |
Polyamide condensate, polyamide melting polymerization, polyamide polyethene-adding, polycarbonate condensate, etc. |
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Exhausting and volatilization |
Polystyrene oxide, high-absorbing resin, chlorine sulphur polyethylene |
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Powder paint |
Polyester, ring oxide, lactide, polyurethane, acrylate |
Twin-Screw Extruder (SHJ25D) offered by NanJing ShengChi Rubber & Plastic Machinery Co. Ltd.