SJ-90/16 CV Extruder (Continuous vulcanization extruder line)

Application:
SJ-90 extruded rubber sleeve continuous vulcanization unit is a special machine for cold feeding rubber sleeve extrusion molding, suitable for the production of insulation sheaths for rubber cables such as natural, styrene butadiene, green butadiene, nitrile, ethylene propylene, chlorinated polyethylene, chlorosulfonated polyethylene, silicone rubber, etc. 

The main technical parameters

Diameter before extruding    :Φ5.0-Φ16mm
Diameter after extruding:    Φ7.0-Φ30mm
Heating form:Steam
Cooling form    :Water 
Vulcanization Tube length    :42m 
Tube specification:DN159*6 length of 24M,
 cooling tube 100*6 Length: 18M
Tube material:Stainless steel seamless steel tube
Tube catenary angle:Inclined type 7.5°
Pay-off reel size:PN1000-PN2000
Take-up reel size:PN1000-PN2000
Upper belt wheel type capstan    Diameter of traction wheel: Φ1200mm: traction force :1500kg
Front caterpillar max traction force    :1500kg
Production line speed:50m/min
Power supply:Ground and neutral 3-phase 380V 60Hz 
Compressed air:8MPa
Cable max tension:500kg
Cable movement direction:Right to  Left

Main Component and cost of each components

PN2000 Shaftless pay-off stand(not need foundation installation)
1500kg upper belt type wheel capstan
SJ-90/16 rubber extruder(Including mold temperature machine)
Φ40 Single extrusion cross head
Hydraulic upper seal
Steam heating  Vulcanized tube Φ159mm*8mm
Cooling Vulcanized tube Φ100mm*8mm
Hydraulic lower seal (secondary seal)
Water air balance control system 
Catenary controller
Multi claw blow dryer
1500kg  Front Caterpillar capstan
PN2000 Shaftless take-up with traverse stand(not need foundation installation)
Tube supports (Positioning wheel, steering wheel, limit roller)
Electrical control system 
WEG motor and electrical parts

SJ-90/16 rubber extruder
Screw diameter: Φ90mm
Screw L/D: 16:1
Screw type: double head+gradient input material (Please check the screw layout),
Screw speed: 60r/min
Extruding capacity (MAX): 220kg/h (EPDM)
Main motor: 75kw AC WEG motor, controlled by variable frequency speed control system
Screw material: 38CrMoALA, surface nitriding treatment, nitriding depth 0.5-0.8mm, surface hardness ≥ HV840
Barrel material: 38CrMoALA, surface nitriding treatment, nitriding depth 0.5-0.8mm, surface hardness ≥ HV940
Feeding and screw cooling: forced feeding by side pressure roller, forced water cooling.
Temperature control method: three-stage mold temperature heating and cooling
Head clamping: Huff type clamping, easy to operate
Gearbox: The gears are all quenched and tempered with 40Cr, and the surface hardness of the gear surface is HRC50-55 after high-frequency quenching treatment. The shaft is quenched and tempered with 45 # steel, and the box material is cast iron. The gears are ground with helical tooth surfaces, and the gearbox and screw are connected with splines. The one-way roller thrust bearing

Electronic control system
Power supply: three-phase five wire system, 380V (± 10%), 60Hz.
The extruder host and traction motor are controlled by a frequency conversion speed control device,
The electrical components inside the electric control cabinet are made by well-known domestic enterprise Electric.
The appearance and color of the electric control cabinet shall be configured according to the requirements of the purchaser. The entire machine is controlled by PLC, with a 10.4-inch color touch screen cantilever control human-machine interface touch screen operation.
The main engine and traction machine are respectively equipped with emergency stop buttons, and all emergency stop buttons are interlocked and linked