Extruder Heater/ Extruder Spare Parts
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Product Highlights
- High Wear Resistance: Made from stainless steel and bimetallic alloys with hardness up to HRC 72.
- Self-Cleaning Design: Inter-meshing co-rotating screws wipe each other to prevent residue buildup.
- Customizable Structure: Optimize L/D ratio, barrel structure, and screw array based on process needs.
- Advanced Surface Treatment: Features nitriding, hard chrome plating, and plasma alloy coating for durability.
- Energy Efficient: New kneading block design avoids overheating and reduces energy consumption.
- Wide Material Compatibility: Suitable for general plastics, ABS, PA, PC, PE, PET, PS, PU, PVC, and recycled materials.
- Professional Manufacturer: Nanjing HaiSi offers OEM/ODM services with experienced R&D and manufacturing teams.
- Secure Export Packaging: Wooden case or anti-rust oil processing with stretch film to prevent moisture damage.
Product Attributes
- Customization
- Available
- After-sales Service
- Online Service
- Warranty
- Online Service
- Technics
- Casting
- Feature
- Wear Resistant
- Material
- Stainless Steel
- Application
- for Extruder
- Transport Package
- Wooden Cases
- Specification
- as require
- Trademark
- HS
- Origin
- Jiangsu
- Production Capacity
- 3000 Sets Per Year
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Product Description

SPECIFICATONS
1. Extruder replace parts
2. High quality, high accuracy
3. Screw: W6Mo5Cr4V2.38CrMoAl. SKD11. SACM645 etc
Description:
The flexible modular principle is realized with screw barrel sections from the wide
Range ofdifferent designs possible. Fast, intensive and uniform heating ofthe screw
Barrel section is ensured by electrical heaters. The barrel sections are cooled with
Water, by means ofan internal bore system, with bores arranged close to the inside
Barrel wall.

Barrel sections are available as:
Closed barrel section
Barrel section with opening for material feed or for devolatilization
The processing section is provided with stainless steel plates as a protection against
Accidental contact.
Screw Elements: High-speed steel W6Mo5Cr4V2, nitrogen treatment.
Screw Shaft: High performance alloy steels, 40CrNiMoA; With standing high load, Etc
Description
The inter meshing screws co-rotate and wipe each other with narrow clearance so that
No residues are left in the screw flight and clean effort is thus reduce.
Screw elements with various pitches and lengths
Kneading blocks with various angles ofstagger, numbers ofkneading disks and disk
Widths.
Screw tips to fix the screw set axially
Gear teeth connection to ensure power flow between the screw shaft and screw
Elements.
Features:
1. Screw components designed by computer aids is kneading type, has excellent self-cleaning function, the new kneading block design effectively avoid the problems of overheating and energy consumption.
2. According to process system and formula requirements, the unit can optimize its L/D ratio, barrel structure, screw array, venting number and location, feeding method, electrical control methods etc. For rational allocation.

Packaging for exports:
Package: Wooden case or Using Anti-rust oil processing, then use stretch film cover extruder against moisture damage.
Shipping: By sea or By express
Company Information
Nanjing HaiSi Extrusion Equipment Co., Ltd is a High-Tech company, which is composed of well-experienced team in R&D, manufacturing technique, sales service and basing on extruder industry for many years. Our company is a professional manufacture of high quality pelletizing extruders for coloring/ dyeing and master batch production, as well as plastic modification and compounding, plastic recycling. Innovative machines are built as per the concept of durability, high efficiency and economical power consumption.

Our machine types:
1. Co-Rotating Parallel Twin Screw Pelletizing Extruders
2. Single Screw Pelletizing Extruders
3. Die Face Cut (Air Cooling) Pelletizing Extruders
4. Double Stage / Double Degassing Recycling Extruders
5. Crushers, Mixers, Storage Tanks, Vibrators, Granulators, Blowers
6. Extruder spare parts
We are manufacturer of twin screw extruder, also can supply all the spare parts.
Like screw, barrel, feeder, die head electric controller and gearbox.

| Base Material | 1) 38CrMoAlA(JIS SACM645) 2)Cr12MOV(JIS SKD-11) 3) 4Cr5MoSiV1(JIS SKD-61) 4) 42CrMo(AISI 4140) |
||
| Bimetallic Alloy Material | 1)Fe-based alloy 2)Ni-based alloy/Deloro alloy 3)Co-based alloy 4)NiCo-based alloy 5)Tungsten carbide/Wolfram carbide |
||
| Surface Treatment | |||
| 1.Heat treatment | 2.High frequency treatment | ||
| 3.Nitriding treatment | Nitrided case depth: 0.50-0.80mm | ||
| Nitrided hardness: HV850-1020 (HRC57-65) | |||
| 4.Hard chrome plating treatment | Chromium-plating layer depth: 0.05-0.10mm | ||
| Chromium-plating layer hardness: more than 950HV | |||
| 5Nickel alloy plating treatment | Bimetallic barrel: centrifugal casting (Inlay alloy) | ||
| Bimetallic screw: plasma alloy coating spraying | |||
| Bimetallic layer depth: 0.8-2.0mm | |||
| Bimetallic layer hardness: HRC 57-72 | |||
| Basic Information | |||
| Nitride Brittleness | ≤Grade Two | ||
| Surface Roughness | Ra0.4um | ||
| Screw Straightness | 0.015mm | ||
| Hardness after hardening and tempering | 0.025~0.10mm | ||
| Material Application | 1)General plastics | ||
| 2)ABS,PA,PC,PE,PET,PS,PU,PVC,U-PVC | |||
| 3) PA+GF (Glass Fiber) | |||
| 4)Flame-resistant reinforced plastics | |||
| 5)Modified engineering plastics | |||
| 6)All kinds of mixed recycled materials | |||
| General Terms | Means of transport: Ocean, Air, Express | ||
| Production time: 20-25 days after order | |||
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR244204". Items marked "" are certified.
Company Profile
Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our service, we provide the products with good quality at the reasonable price.
Kairong group, headquartered in Nanjing, China, is a global manufacturing and trading company in the field of high-performance plastics and rubber processing equipment, extrusion solutions, masterbatch and compounding, etc. Its unit Nanjing Haisi Extrusion Company is a prefessional manufacturer of twin screw extruder, single screw extruder, two stage extruder and its related auxiaries. We tailor solutions from raw materials, materials processing equipment, to injection for different customers. Each Kairong solution is designed, manufactured, and commissioned by experienced teams of professionals engineers and aftersales staffs.
Kairong group offers raw materials, Mixing and conveying unit, extrusion technology, recycling unit, profile extrusion etc. We offer whole plant, even turnkey solution to meet different customers' requirements.
Kairong Group believes that " High quality and profession service will bring bright future "
We have lots of customer all over the world. Such as: Australia. USA, Egypt. UK, Canada, German etc.
Nan jing kairong mainly supply twin screw extruder, single screw extruder, two stage extruder, plastic sheeting machine, crusher, loader, feeder, mixer, pelletizer, and some other auxiliary equipments.
Last year nanjing kairong has 1500000 USD for exporting, and our target of this year is 3000000 USD.
We plan to build agent in some necessary countries, so that we can supply better service conveniently. In the future, our target is to be the top extruder supplier in China!
Nanjing haisi has more than 10 years experience in this industry. We have a professional group to
Make new design, producing, packing and after sale service. All these will ensure you to have a good and suitable equipment.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 7# Zhongxing East Rd, Lishui Economic Development Zone, Nanjing, Jiangsu, China
-
Plant Area
- 664 square meters
-
Number of Employees
- 10
-
Registered Capital
- 3,000,000 RMB
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF
-
Average Lead Time
-
Peak Season Lead Time: 1-3 months
Off Season Lead Time: 1-3 months -
Nearest Port
- Shanghai Port
Our Production Capability & Technical Expertise
-
Main Products
- Twin Screw Extruder
-
Production Machines
- CNC Machining Center, Drilling Facility
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2015-06-23
- Export Year
- 2015-09-01
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia
-
Annual Export Revenue
- 17,000,000 RMB
-
Number of Foreign Trading Staff
- 9
-
Overseas Agent/Branch
- No
FAQ
- What materials are used for the extruder screw and barrel?
- Screws and barrels are made from high-performance materials like 38CrMoAlA, Cr12MOV, 4Cr5MoSiV1, and 42CrMo. Bimetallic options include Fe-based, Ni-based, and Co-based alloys with tungsten carbide.
- What surface treatments are available for the components?
- Options include heat treatment, high-frequency treatment, nitriding (depth 0.50-0.80mm, hardness HV850-1020), hard chrome plating (depth 0.05-0.10mm, hardness >950HV), and nickel alloy plating.
- Can the extruder structure be customized for specific processes?
- Yes, the unit can optimize its L/D ratio, barrel structure, screw array, venting number and location, feeding method, and electrical control methods according to process system and formula requirements.
- What is the production lead time for orders?
- The general production time is 20-25 days after order confirmation. Peak season lead time is 1-3 months, and off-season lead time is also 1-3 months.
- Does the manufacturer offer OEM or ODM services?
- Yes, the company provides both OEM and ODM services, supported by an experienced R&D team and professional manufacturing capabilities.
- How are the extruder spare parts packaged for export?
- Parts are packaged in wooden cases or treated with anti-rust oil and covered with stretch film to protect against moisture damage during shipping.
- What types of plastics can this extruder process?
- It is suitable for general plastics, ABS, PA, PC, PE, PET, PS, PU, PVC, U-PVC, PA+GF (Glass Fiber), flame-resistant reinforced plastics, modified engineering plastics, and mixed recycled materials.
- What is the warranty and after-sales service policy?
- The product comes with online service for after-sales support and warranty assistance.
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