Extruder for HDPE blown film

 

Extruder (production of Korea) is intended for the production of film used for the production of
packages.

 

technical characteristics	;
Material:	high-density polyethylene, linear polyethylene of high pressure, low pressure polyethylene;
Capacity, kg / h:	up to 30
Maximum film width, mm:	600 mm
Film thickness, mm:	0,010 – 0,02;
Installed power, kW:	220 (approximately);
Extruder	single-screw;
Number of screws:	1;
Screw diameter in mm:	45;
The ratio of length to diameter of the screw:	30 : 1;
Screw Material:	SACM alloy 645 with nitriding surface hardness of Rockwell - 75 units;
Material of cylinder:	SACM alloy 645 with nitriding surface hardness of Rockwell - 90 units;
Heating power, kW:	12;
Number of zones of temperature control:	3;
Number of fans cooling the cylinder:	2;
Power fan, kW:	0,375;
Engine power auger rotation, kW:	18,5
extruder head	;
Type of head:	spiral;
Mandrel diameters, mm	35; 50; 70
How to replace the filter:	manual;
control panel	;
Type of control:	remote;
Module cooling sleeve	;
Type of cooling:	вthe air;
Fan power, kW:	2,2
Alarm tensioner	;
Type of device:	a fixed, immobile;
Clamping diameter of the shaft, mm:	130;
Width of the clamping shaft, mm:	600
Power exhaust, kW:	3,7; (inverter)
The speed of rotation of pinch rolls, m / min.:	6-60;
The leading torque motor	50 kg/sm
winding device	;
Type of device:	Pole, with automatic change of rollers, the model FWS-type clamping / cutting
Engine power, kW:	0,75 (inverter);
The maximum roll width, mm:	550
The maximum roll diameter, mm:	600;

 

The equipment is made on the basis of single-screw extruder, complete with the form of equipment for the production of a film of high quality products.

Diameter of interchangeable spools: 76mm

Air consumption (average): 0.2 m3/min

The air pressure (average): 5 atm

Electricity: 380V, 50Hz

 

A detailed technical description of single-layer extrusion line:

 

1. Single screw extruder of 45 mm - 1 pc.

- DRIVE

Asynchronous motor with inverter control.

Engine power: 18.5 kW.

- FITTING

Reduction gearbox with helical gears hardened driven by DC motor with forced oil cooling circuit. Thrust bearing, designed the work of at least 100,000 hours.

- Extruder

Screw diameter of 45 mm.

The ratio L / D: 30:1.

The internal surface area loading has longitudinal grooves for better grip material.

Download Area has a water-cooled, running or circulating water.

The screw is made of SASM 645 with treatment, hardening and azotatsiey, the hardness of 75
or more.

The material is made of a cylinder 645 with the SASM treatment, hardening and azotatsiey, the
hardness of 90.

Band heaters with thermocouples are divided into several zones.

Number of heating zones: 3.

Heating power: 12 kW.

The material of each cylinder of the extruder has several zones of air cooling.

The number of air-cooling zones: 2.

Power cooling fans * 2 0.375 = 0.75 kW.

2. HAND APPARATUS FOR CHANGING FILTERS EXTRUDER - 1pc.

Change the filter - manual.

The number of working positions - 1 pc.

The number of thermal zones - 1 pc.

3. RING extrusion head - 3 pcs.

The design of the extrusion head ensures high quality of the film, the minimum amount of
material, both located in the channels, the possibility of a wide range of materials, quick change
of the material. The head is made of stainless steel subjected to special heat treatment to

relieve residual stresses.

Type - the spiral.

Type heaters - tape.

Number of zones thermoregulation, including an adapter - 2 pcs.

4. RING OF AIR COOLING FILM SLEEVES - 1 pc.

Injection of air for cooling the outer surface of the film is the blower hose with adjustable
volume performance. The connection threads and uniform distribution of flow along the
perimeter of the ring is air cooled. Blowing the ring has a system of air channels and cavities,
extensive customization options position, distribution and capacity to ensure optimal
conditions for cooling sleeve. External cooling ring is made of cast aluminum.

5. Blowers for air to the RING AIR COOLING 1 pc.

The fan with flow control.

Fan power - 2.2 kW

6. The receiving device.

Coming from the head, formed and cooled film sleeve is formed by half. Folding cheeks are
made of aluminum frames with sleek profiles, angle of descent of a precise control

Drive shaft - AC motor.

Engine power - 0.75 kW.

The width of pull rolls - 600mm.

Rubber coated idler shaft with pneumatic controlled closing and opening.

Folding device, the device is smooth film.

7. Winder.

Type Winder - two positions, one-sided

Pull calender (rubber-coated chrome-plated shaft and shaft) with air gap adjustment.

Control panel with buttons, fuses, indicators, and the speed of the film tension settings.