800kg/hr Plastic Extrusion Line Twin Screw With Under Water Pelletizing System

Main motor:

AC Motor, 200KW；

Parker inverter from USA

Power transmission:

Safety clutch protection unit from , with speed sensor to protect gearbox

Gearbox:

High safety factor design;

Latest steel alloy material for gears applied with special heat treatment and manufactured at high precision level; With a bit different structure compared to traditional gearbox which is more stable.

NSK bearings and imported seals applied,

Special lubricating system equipped combined with immersing and forcing solutions;

Input/output rotary speed:1500/600rpm；

Torque:2x1591N.M

Torque degree: 10.6T/A3

Extrusion line:

Screw Diameter: 71mm,L/D:48:1；

Do/Di: 1.55

Maximum Screw speed:600rpm；

Screw configuration:with modular structure, torque transmission by spline;

S Screw material: W6Mo5Cr4V2, HRC62-64

Barrel configuration: with modular structure, each one with length of 4L/D,and the barrels connected together by bolts and pins;

Barrel material: #45 steel, with bi-metallic linear inside barrel

Recommended barrels configuration:

No1 barrel with one feeding port for all possible components, No4 with one side feeding port and one venting port, that is blocked with one plug if necessary. No.11with one vacuum port.

Temperature controlling:

Heating system: Electric heater, total heating power with approx.45kw (No.1 Section cooled by water)；

Cooling system:soft-water cooling system；

Temp. controller: Siemens temperature controller

Soft-water cooling system including one 1.5kw water-pump, stainless steel water-box (with water Temp. gauge), heat exchanger, imported solenoid valves, water pressure indicator etc.

Steel base:

Welding base with special pads;

Vacuum pump motor: 5.5kw;

Water ring vacuum pump.

vacuum pots with water inside, indicator;

Vacuum degree: Max.-0.095Mpa

With water circulating system

Stainless steel made

Structure Mode: double cylinder type

Driving Mode:Hydraulic

Action Time: <1S；

Driving Mode: Hydraulic Station

The hydraulic station includes: Driving Oil Pump1.5kw, Siemens motor

Highest pressure20Mpa, with safety valve, accumulator.

The inspection on pressure and temperature: Set one inspection position before the screen and display the melt temperature.

Heating power:4kw, cast-copper heater

Accumulator: 6.3L

Filtering area: 8300 mm^2

Diverter valve guides the melt stream either through the screen pack or via a bypass system around the screen pack to a strand die.

The value avoids frozen-off of the die plate holes

Hydraulic station share with the hydraulic screen changer

The main units include:

- cutting chamber

- die plate holes diameter 3.2 mm

- clamping flange

- sight glass

- moveable support cart

- pelletizer motor

- hydraulic unit

- cutter shaft

- cutter hubs

- heating bar 8 x 0.8 KW

- special heat isolation

- quick change of the die plate insert

Pelletizer motor is A.C. motor , 5.5KW, Max speed 3,000 rpm.

Parker inverter from USA

The bearing is from NSK Japan

The horizontal feed of cutter shaft and the cutter hub to the die plate is controlled by hand wheel accurately

The tolerances between cutter hub and die plate are compensated automatically

he main unit includes:

- stainless steel water tank, 500 L

- heating system, 15 KW, 20-80 ℃

- water pump, 4KW, AC motor

- heat exchanger, size up to 2 m2

pipes is made of stainless steel

-value of bypass and PLC program the time when the cooling water entry into the cutting chamber.

-Sight glass for checking

Motor power:11kw, Siemens motor

304 stainless steel made

With blower, filter, stainless steel barrate

Volume: 500L

Capacity: 600-800kg/hr

Motor Power: 2x0.37kw

Capacity:400-1000kg/hr

2 layers,

Made of stainless steel

Air blower

5.5kw

Stainless steel pipe connection

Loading capacity: up to 1000kg

Silo

Volume: 1000L

Stainless steel

Support frame

Sight glass

Power: 7.5kw

Temperature control range: 5-35C

Cooling capacity: 12500Kcal/hr

Compressor included

1) Meter Controlling System:

a,The temperature controller for the main extruder is Siemens Temperature module controller. Solid relay is used for heating and cooling loop. The solenoid valve is VMI from USA

2) Main Extruder Interlock Protection Function:

a,Main Extruder interlocks with the lubricant pump for the gear box and the fan for the main motor

b,Main extruder interlocks with the feeder, when the extruder stops, the feeder will stop immediately；

c,The main motor has protective functions of over current, under voltage, lack of phases, over heat and block running.

d,There is melt pressure and melt temperature display function on the die, of which the melt pressure interlock with the main extruder to realize the over pressure protection on the die

3) Main breaking switch is EATON

4) Small AC contactor is EATON

5) New type motor protective air switch is EATON

6) Uniform rotation speed and frequency indicating gauge

7) The electrical cabinet is designed and produced according to the standard of SIEMENS which has a wider space and is good for ventilation and heat dispersion as well as examination and repairing

9) All the elements have passed the CE certification