Gearbox for twin screw plastic extruder
Gearbox is a power reducing and transmision device for twin-screw or triple-screw extruder.
Purpose: to reduce the motor speed and let the motor speed match the twin screw main machine speed.
Working Principle: with gears and shafts get together working to reduce the motor’s speed(960RPM/1480RPM, etc.) to match the speed of the twin screw extruder working needed. (400RPM/500RPM/600RPM/800RPM/900RPM, etc..)
Material: body: casting iron, shafts/gears: carbon steel
Cooling method: Gear oil lubrication, oil spray and parts sink into the gear oil; (with oil pump and heat exchange.
Process |
Representative materials |
Mixing nature-changing |
PE,PP,PS+SBS,PA+EPDM,PP+NBR,EVA +Silicon rubber, etc. |
PE,PA,PC,CPE+ABS(alloy),PBT+PET,PP+ PE etc. |
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Filling nature-changing |
PE,PP,EVA, etc.+ Calcium carbonate, talcum powder, titanic powder ABS,PC,PS, etc.+ aluminum hydroxide, magnesium hydroxide, antimony oxide. |
PP,PA,ABS +ferrous powder, sulphuric powder ceramic powder |
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Functional machine pellets |
PP,PA,ABS,PBT, etc+ anti-burning agent and other auxiliary agents: combustion-supporting machine pellets |
PE,PP,PS, etc+ starch: de-composing machine pellets |
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PE+ fog-preventing dipper, stabilizer: dual-prevention machine pellets |
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PE,EVA=ABS etc+ carbon black: black machine pellets |
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Colored machine pellets |
PE,PP,ABS,AS,PA,EVA,PET +pigment and auxiliary |
Intensified glass fibers and carbon fibers |
PP,PBT,ABS,AS,PA,PC,POM,PPS,PET etc.+ long fibers, small fibers, carbon fibers, crystals and so on, etc. |
Various cables |
HDPE,LDPE,LLDPE,MDPE,EVA,PVC,PP, etc. insulating cables,coatings, PE peroxide silicon alkyl crossing cables: radialization crossing cables |
Special materials |
EVA heat-melting glue, polyurethane, fluorine rubber, fluorine plastics, PP cigarette filtering material and TPR sole material |
Reaction extruding |
Poly-amide condensate, poly-amide melting polymerization, poly-amide polythene-adding, poly-carbonate condensate, etc. |
Exhausting and volatilization |
Polystyrene oxide, high-absorbing resin, chlorine sulphur polyethylene |
Powder paint |
Polyester, ring oxide, lactide, polyurethane, acrylate |