70+40mm two layer co-extrusion extruder line

Specifications

Application scope: apply to the production of PVC, PE, PP insulated wire

Φ70×25D Core

1)Power:30HP frequency motor +inverter

2)Reducing gear box(173type): Gear box used of the grinding gear (copy italian type)(Company:Jiangyin kewei)

3)Gear lubrication: Oil feed forcibly by gear;

A.Four-box-shape casting forming and annealing treatment, material HT200-300

B.Gear tooth surface to deal with high-frequency hardening, grinding teeth after processing, noise index lower than 75 decibels

4)BM Screw: (To ensure uniform plastic coating materials, dense)(company:Zhejiang Jinhai)

A.Diameter:70,suitable for extrusion the PVC.PE.PP;

B.Length-diameter ratio:25:1;

C.Rev:10-110RPM;

D.Material: 38CrMoAIA nitride treatment(nitride depth:0.6);  

E.Screw roughness:0.8

5)Lo-cylinder:

A.Material: 38CrMoAIA, nitrogen treatment(nitride depth:0.6);

B.Surface treatment: Nitrogen treatment;

C.Hardness: HRC60-63 degrees;

D.Temperature sensing point: 4 position

E.Cooling:4 high-pressure centrifugal windmills, 1 Lo-cylinder each segment, blanking segment water cooling,

F.The joint which connect Lo-cylinder with the deceleration gearbox have special slot cooling design, and thus greatly increase the life of the screw and gear box .

G.Screw roughness:0.8

6)Chuck

A.Type: Bilateral thread clamping, automatically centering, by external cast aluminum heating piece heating;

B.Locking direction for anti-clockwise;

C.Chuck's operation is very convenient, and the wear-resistant, and greatly enhance conventional screw-connected, difficult to wear rubber drain.

D.With high-speed positive and negative wrench, easy to operate.

E.Chuck's locking developed on the basis of home's and abroad's similar structure to develop, according to the requirements of customers.

7)Electric heating

A.service voltage: 380V/50Hz;

B.2000W; Lo-cylinder: 4 electric, cast aluminum 20KW;

C.Electric heating Control: 0-399º,±1ºJapan PKC thermometer + relay control;

8)Suction feed machine: It mainly by the vacuum suction feed device, drying device, direct-loading device consists of three parts.

A.One-time feeding: 50Kg (Taiwan Xinyi)

B.Suction feed: Auto vacuum suction feed, when the material has not yet fully used up, this device automatically suction feed, hopper within filter device;

C.Drying: To adopt hot air automatic drying, the temperature can be set

9)Crosshead (1): Manual center crosshead,fixed crosshead(1 group),two crosshead temperature controlled ,for a crosshead and for a die

10)Crosshead using imported heat-resistant alloy steel production of anti-corrosion, oxidation, the surface of chrome-plated hardware.

5. 40×25D horizontal Aux.Extruder

Equipment name and specification	Quantity	Note
40 horizontal Aux.Extruder	One unit
40 hot gun	One unit
stainless steel hopper	One unit

 

a. Its installation direction should be consistent with the installation for main engine, and their angle is about 45°.

b. Power: 7.5KW variable-frequency motor drive.

c. Screw: diameter: 40MM     L/D: 25:1   Compression ratio: 3.2

d. Reduction gear box (Type 112): Adopt abrasive hard-tooth-surface bevel wheel, and oil seal adopts the imported product.

e. Lubrication for gearbox: Enforce oil into gear.

f. Rotating speed of screw: 0~110RPM/min.

g. Screw: material: 38CrMOAIA, nitrogen treatment, depth of nitridation: 0.5-0.8mm;

Hardness: ≥HV840, surface treatment: durionise

Screw shape:BM type, Extrusion material: PVC , extrusion capacity: ≥40KG;

Screw cylinder: material: SACM-1, nitrogen treatment, depth of nitridation: 0.5-0.8mm;

Hardness: ≥HV940, temperature measuring point: Position 3.

h. Electric heat of screw cylinder: adaptable voltage: 220V/50HZ, electric heat of three cast aluminums, power: 3×2.2KW.

i. Cooling method of screw cylinder: 3 centrifugal fans, power: 60W

j. Rising and falling: Motor drive, screw mandrel rises and falls automatically, with travel switch limit, travel height: 100mm.

k. Shift motion: 250mm, move mode: linear bearing + line slide rail, rotation angle: 180°.

l. Collet shape: Threaded-type double-sided clamping, heating mode: Heating inside electrical bar made of imported material;

Power: 660W, voltage: 220V, temperature measuring point: Position 1.

m. Transition flow channel: Connected to crosshead by 90°, heating: mica heater, voltage: 220V, neck power: 500W, temperature measuring point: Position 1, power of hot air gun: 1200W, temperature measuring point: Position 1.

n. Hopper: 15KG stainless steel hopper.