Conical Twin Screw for Foamed Board twin screw extruder

We provide all kinds of screws for plastic extrusion, injection molding, plastic tubing and so on. The screws are applicable to different types of extruders, such as twin screw extruder, plastic extruder and chemical fiber extruder etc. It has stable extrusion process, high production and perfect quality. We are the leader in plastic machinery over the past years. We can provide high quality products (screw) at competitive price.

Website:www.majormach.com Email:sales@majormach.com



Product Advantages:

Conical twin screw for PVC foamed board can make products with lower density, smooth and flat surface (Advertisement board density can be 0.32)

Unique formula of double alloy spray welding on the surface of the screw can prolong the service life of the screw effectively.

Reasonable structure design of the screw makes smooth feeding, good effects of plasticizing. stable extrusion pressure and high productivity.



Product Details:

Conical twin screw for foamed board is suitable for extruding shaped materials by PVC powder. It can produce all sorts of PVC plastic pipe material, profiled material, board material, sheet material, bar material, granulation and PE wood plastic.

The screw has applied oil cooling system. Barrel is cooled by special wind cooling system. The screw is made by high precision special digital screw miller. Thus ensure each extruder device be exactly the same.

The design of the screw has introduced advanced design concept and actual production status, adopt variable pitch, variable fit space, fine computational fluid dynamics and other design concepts. The materials can be more softly sheared, kneaded and compressed while transporting along the screw to meet the requirement of actual production.



Technical Parameter:

Material: high quality alloy steel from domestic and foreign well-known manufacturers: 38CrMoAlA.

Heat treatment: the raw material is treated by several heat treatment procedures such as quenching, tempering, qualitative,, nitride treatment, etc. to achieve the technical requirements of HB>=280, Nitride hardness (HV)>=980, Nitride thickness between 0.45mm and 0.65mm, Nitride frangibility<=Class 2.

New material: To meet requirements from different customers, new materials, such as:SKD11, SKD61, etc., are sent to vacuum quenching treatment, then twice nitride treatments, thus to achieve higher abrasion performance.

4.Abrasion performance: Screw surface is spray welded by nickel-based alloy powder or tungsten carbide class alloy powder to improve screw abrasion performance and prolong its service life.



Use for pipe extrusion:



ModelSJZ45/90SJZ51/105SJZ55/110SJZ65/132SJZ80/156SJZ92/188

Screw diameter(mm)45/9051/10555/11065/13280/15692/188

Max. rotational speed(rpm)4545454534.734.7

Screw Torque314860007000100001400032000

Main motor(kw)1518.52230/3755110

Production capacity115128153262406805



Use for profile extrusion:



ModelSJZ45/90SJZ51/105SJZ55/110SJZ65/132SJZ80/156SJZ92/188

Screw diameter(mm)45/9051/10555/11065/13280/15692/188

Max. rotational speed(rpm)34.72525

Screw Torque31005000600090001300030000

Main motor(kw)1518.52230/3755110

Production capacity6385125226328605

Conical twin screw for foamed board is suitable for extruding shaped materials by PVC powder. It can produce all sorts of PVC plastic pipe material, profiled material, board material, sheet material, bar material, granulation and PE wood plastic.

The screw has applied oil cooling system. Barrel is cooled by special wind cooling system. The screw is made by high precision special digital screw miller. Thus ensure each extruder device be exactly the same.

The design of the screw has introduced advanced design concept and actual production status, adopt variable pitch, variable fit space, fine computational fluid dynamics and other design concepts. The materials can be more softly sheared, kneaded and compressed while transporting along the screw to meet the requirement of actual production.



Technical Parameter:

Material: high quality alloy steel from domestic and foreign well-known manufacturers: 38CrMoAlA.

Heat treatment: the raw material is treated by several heat treatment procedures such as quenching, tempering, qualitative,, nitride treatment, etc. to achieve the technical requirements of HB>=280, Nitride hardness (HV)>=980, Nitride thickness between 0.45mm and 0.65mm, Nitride frangibility<=Class 2.[]

New material: To meet requirements from different customers, new materials, such as:SKD11, SKD61, etc., are sent to vacuum quenching treatment, then twice nitride treatments, thus to achieve higher abrasion performance.

4.Abrasion performance: Screw surface is spray welded by nickel-based alloy powder or tungsten carbide class alloy powder to improve screw abrasion performance and prolong its service life.

Website:www.majormach.com



Email:sales@majormach.com