Standard & made-to-drawing parts
Checked before shipping
Air, sea & express delivery

ISO Certified Conical Twin Screw and Cylinder for Plastic Extrusion Machine

Updated 2026-11-04 · Markdown version

US$720.001–9 sets

US$19,20010+ sets

MOQ 1 set · Final price confirmed in your quote

Standard: DIN, ASTM, GOST, GB, JIS, ANSI, BS
Material: Iron
Treatment: Bimetallic, Nitriding, Hard Chrome Plating
Nitrided Hardness: Hv 850~10000
Surface Hardness: HRC Value
Heat Treatment: Carburizing, Nitriding, Quenching, Tempering
Materials: 38crmoala, 40cr, SKD61, Sacm645
Package Size: 120.00cm * 40.00cm * 35.00cm

Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
After-sales Service	Return and Replacement
Warranty	12-18 Months Under Normal Use
Standard	DIN, ASTM, GOST, GB, JIS, ANSI, BS
Technics	Forging
Feature	Recycle
Material	Iron
Treatment	Bimetallic, Nitriding, Hard Chrome Plating
Nitrided Case Depth	0.45~0.7mm
Nitrided Hardness	Hv 850~10000
Surface Hardness	HRC Value
Screw Type	Twin Screw
Heat Treatment	Carburizing, Nitriding, Quenching, Tempering
Materials	38crmoala, 40cr, SKD61, Sacm645
MOQ	1 Set
Delivery Time	30-45 Days Working Days
Transport Package	Wooden Case with Anti-Rust Oil
Specification	25/50~185/340 mm
Origin	Zhejiang, China
HS Code	847790
Production Capacity	32, 000 Sets/Year
Package Size	120.00cm * 40.00cm * 35.00cm
Package Gross Weight	110.000kg
European-Grade Quality Infrastructure	- German-imported material analysis & quality control systems (spectrometers, CMM)
ISO-Certified Processes	Achieves 99.8% product qualification rate through zero-defect protocols.
Who are we	Your Strategic Manufacturing Partner
Product range	Extruder Screw & Barrel
Typical industries & applications we serve	· Pipe & profile extrusion (PVC, PE, PP, WPC)
Application	PVC pipe, profile, and panel extrusion
Advantage	Strong feeding ability and high torque for stable processing
Advanced Alloys & Treatments	Type
Category	Other Machine & Custom Screws

Technical parameters

Core production line

Product Line	Specification range	Key Features
Conical Twin Screw	Ø25/50–Ø185/340 mm	Variable compression designs
Parallel Twin Screw	Ø45/2 –Ø350/2 mm	High-output configurations
Single Screw	Ø20– Ø500mm (L/D: 15-55)	Precisionmetering sections
Injection Screws	Ø20–Ø300mm (Clamping: 100-35,000 kN)	Wear-resistant alloys
Rubber Processing	Ø20 – Ø650 mm	Cold-feed/pin-type variants

Materials
38CrMoAl(1.8509)	D2	AISI316
34CrAlNi7(1.8550)	DC53	AISI420
31CrMoV9 (1.8519)	Gr12MoV	9Cr18MoV
40CrNiMo	440C	17PH-4
42CrMo	AISI304	Incoel 718
40Cr	S600	Hasteloy C-276
C45	1.2316	Incoel 625
SKD11	1.4462	Monel 400
SKD61	1.4404	Monel 500
	1.4122

Type	Hardness (HRC)	Primary Composition	Use	technology
GY83	51-52	Ni-Based 35%WC	Screw	PTA welding
GY83-1	48-49	Ni-Based 20%WC
GY56	56-57	Ni-Based 22%Cr
GY55	56-57	Ni-Based 19%Cr
GY60	57-58	Ni-Based 21%Cr
GM001	59-60	Ni-Based 15%WC
Stellite 6	37-43	Ni-Based 29%Cr
Stellite 1	52-55	Ni-Based 31%Cr
Stellite 12	40-50	Ni-Based 30%Cr
GY108	57-60	Fe-Based 12%Ni	Barrel
GY107	55-58	Fe-Based 12%Ni
GY105	58-61	Fe-Based 12%Ni
GY300	56-60	Ni-Based 15%WC
GY301	56-60	Ni-Based 25%WC
GY303	56-60	Ni-Based 35%WC
GY310	56-60	Ni-Based 10%WC

Description

ISO Certified Conical Twin Screw and Cylinder for Plastic Extrusion Machine is part of our other machine & custom screws range (Screws).

Key details

Standard: DIN, ASTM, GOST, GB, JIS, ANSI, BS
Material: Iron
Application: PVC pipe, profile, and panel extrusion
Warranty: 12-18 Months Under Normal Use
Technics: Forging
Feature: Recycle
Treatment: Bimetallic, Nitriding, Hard Chrome Plating
Nitrided Case Depth: 0.45~0.7mm

Available configurations include standard, material, treatment, nitrided hardness and surface hardness. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 set at US$720.00 – 19,200 per set. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for ISO Certified Conical Twin Screw and Cylinder for Plastic Extrusion Machine?

The listed minimum order is 1 set, at US$720.00 – 19,200 per set. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$720.00 for 1–9 sets; US$19,200 for 10+ sets. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of ISO Certified Conical Twin Screw and Cylinder for Plastic Extrusion Machine?

Standard: DIN, ASTM, GOST, GB, JIS, ANSI, BS; Material: Iron; Application: PVC pipe, profile, and panel extrusion; Warranty: 12-18 Months Under Normal Use; Technics: Forging; Feature: Recycle. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include standard, material, treatment, nitrided hardness and surface hardness. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other other machine & custom screws are available?

The Other Machine & Custom Screws category lists 14,058 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/other-machine-custom-screws/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

Request a quote for this product

US$720.00 – 19,200MOQ 1 setGet a quote WA