Cable Sheath Extrusion Line

This cable sheath extrusion line is used for cable sheath extrusion or insulation.

Main data

Screw Diameter	L/D	Motor Power	Extrude Capacity (PVC)	Extrude Capacity (PE)
30	25:1	5.5kW	25kg	15kg
45	25:1	15kW	80kg	45kg
65	26:1	30kW	160kg	90kg
80	26:1	75kW	260kg	165kg
90	26:1	90kW	360kg	210kg
120	26:1	132kW	620kg	380kg
150	25:1	200kW	900kg	550kg
200	25:1	280kW	1300kg	750kg

Scope of Supply

TU32 traversing type pay-off stand	1 set
TQD 2500kg belt caterpillar	1 set
Φ150 × 25 extruder	1 set
Φ140mm cross head	1 set
Material loading and dry system	1 set
Cooling trough	1 set
Compression air dryer	1 set
Electric control system	1 set

Features

1. High plastic extrusion capacity
The design of screw can strengthen cutting and avoid decomposing by overheat. Fast melting of plastic can be realized in order to extrude plastic at high speed.

2. High performance cooling system
The inner water-cooling and fan-cooling of high-precision copper wing-piece to guarantee heating balance and precise temperature control.

3. Special output flow path designed for melted plastic guarantees high quality of extrusion.
4. Power-saving. This cable sheath extrusion line consumes power of 0.18º/kg, saving more than 78% of power compared with common extruder (0.32º/kg).
5. High performance electric control system and temperature control instrument. Precision is ±2º. Outside diameter tolerance of jacket is ±0.2 mm.

Main Equipment

1. Traversing type pay-off stand

Reel diameter range (mm)	Φ1600 ~ Φ3150
Reel width (mm)	900 ~ 2500
Reel weight (kg)	18000
Suitable wire diameter (mm)	Φ10 ~ Φ140
Suitable wire moment (nm)	400 ~ 5000
Reel up/down speed	0.6m/min

TU32 pay-off of this cable sheath extrusion machine consists of frame, lifting device, moving device, and electric control cabinet.

2. TQD 2500kg belt caterpillar

Max. traction	2500kg
Line speed	3-80m/min
Suitable wire diameter	3-160mm
Center height	1000mm
Contact length of belt	2300mm
Quantity of cylinder	8 pairs
Motor type and power	DC motor 11kW
DC controller	Eurotherm

3. 150/25 extruder

Screw type	BM screw
Screw diameter	Ф150
Scale of the length and diameter	25: 1
Main motor power	DC motor 180kW
Roller heated power and voltage	120kW, 380V
Quantity of roller heated area	6
Quantity of crossing head flange	3
Windy motor quantity	6
Output capacity	650kg/h (PVC)
	360kg/h (PE)

The material of screw and roller are 38CrMoAl. After nitrogen treatment, the depth is 0.4-0.8mm and the hardness is not less than 850HV.

4. Cross head
Inlet wire diameter: Φ50mm-Φ125mm
Finished wire diameter: Φ60mm-Φ140mm

5. Material loading and drying system
Material loading: SAL-800G
Drying: SHD-400

6. Cooling trough
The cooling trough of this cable sheath extrusion line is made of 2mm stainless steel. It consists of heating trough and fixed trough, with 4-meter movable trough and the moving distance is 1m. The inner size of cooling trough (width × depth) is 360 × 400mm.

7. Compression air dryer

8. Electric control system
This cable sheath extrusion line uses PLC and touch screen to control. Each control cabinet controls the electric parts of the extruder unit and the caterpillar. The cabinet controls the temperature, line speed, screw rotational speed, extruder current, meter counter, etc. It will send alarm when it’s overloaded. When change the speed of this cable sheath extrusion machine, the PLC will set corresponding parameter automatically. In addition, three emergency stop switches are designed on the whole line (caterpillar, extruder and take-up stand).

Main Electric Equipment

DC controller	Eurotherm DC controller
Tough screen	Siemens
Temperature control meter	Japan RKC
PLC	Siemens
Sensor	Japan Omron
Low voltage electric equipment	Schneider

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