SJ50/25 Building Wire Extruder For 4mm2 and 3x2.5mm2

Application:
The unit is suitable for covering the sheath of wires and cables by hot extrusion with thermoplastic cable materials such as PVC, polyethylene, PE, XLPE and LSZH.

2.Main parameter:
OD after extrusion:Ø0.5- Ø7.0mm
Screw rod rotation speed:105r/min
Max extrusion catacity:70kg/h
Max traction force:300kg
Traction line speed:220m/min
Pay-off bobbin size:PND400-PND630
Take-up bobbin size:PND400-PND630
Total power:42kw

3. Main components:

Ø630 shaftless pay off rack
Input wire tension device
SJ45/25 Main extruder 
Ø20mm adjustable cross head 
1.5m movable Stainless steel water through
4m Main stainless steel cool water through
Independent blow dryer
Ø500mm Double wheel capstan
Ø630mm double bobbin take-up with traverse 
Electrical Control system

3. Main parameter of main extruder:

Screw diameter: Ø50mm
Length diameter ratio of screw: 25:1
Screw type: high efficiency BM screw;
Screw speed: 105R / min
Extrusion output (max): PVC: 70kg / h;
Main motor power: 15kw (AC), AC motor, frequency conversion speed regulation
system
The screw material is 38CrMoAlA, the surface is nitrided, the nitriding depth is
 0.5-0.8mm, and the surface hardness is ≥ hv840
The barrel material is 38CrMoAlA, the surface is nitrided, the nitriding depth is 
0.5-0.8mm, and the surface hardness is ≥ hv940 
Screw cooling: water cooling.
Screw tube heating and cooling: cast aluminum heater heating and insulation, fan segmented cooling
Temperature controller: using the latest generation of digital touch products, with a temperature control accuracy of ± 1 ℃
Number of temperature control sections: (body/nose): 3 * 3kw/2 * 1.5kw
Crosshead neck: Huff style clamping, easy to operate
Gearbox: The gears are all quenched and tempered with 40Cr, and the surface hardness of the tooth surface is HRC50-55 after high-frequency quenching treatment. The shaft is quenched and tempered with 45 # steel, and the material of the box is cast iron. The gears are ground with oblique tooth surfaces, and the gearbox is connected to the screw with splines. The one-way roller thrust bearing, model HB133.

4. Main brand of electronic:

Low voltage:（SCHNERIDER）
Temperature unit :(RKC)
Brand of main drive motor:（CHINESE FAMOUS）
Inverter:（SINEE）
PLC:（SIEMENS）
Touch screen：（SIEMENS 10.1）