• Model NO.：YSCREW
• Assembly Structure：Separate Type Extruder
• Screw：Single-Screw
• Engagement System：Full Intermeshing
• Screw Channel Structure：Deep Screw
• Exhaust：Exhaust
• Automation：Automatic
• Computerized：Computerized
• Screw Diameter：15mm-300mm
• L/D Ratio：15-46
• Surface Roughness：Ra0.4
• Nitrided Layer Depth：0.5-0.8mm
• Linearity of Screw：0.015mm
• Chrome-Plating Layer Depth：0.025-0085mm
• Bimetallic Layer Depth：3mm
• Base Material：38crmoala
• Nitrided Brittleness：Less Than Grade 1
• Nitrided Hardness：900-1000hv (HRC 55-65)
• Transport Package：Wooden Cases
• Specification：SGS, ISO9001-2008
• Trademark：ZHONGYANG SCREW
• Origin：China Mainland
• HS Code：8477900000
• Production Capacity：3000 Sets,Year

Basic Info.

Model NO. YSCREW Assembly Structure Separate Type Extruder Screw Single-Screw Engagement System Full Intermeshing Screw Channel Structure Deep Screw Exhaust Exhaust Automation Automatic Computerized Computerized Screw Diameter 15mm-300mm L/D Ratio 15-46 Surface Roughness Ra0.4 Nitrided Layer Depth 0.5-0.8mm Linearity of Screw 0.015mm Chrome-Plating Layer Depth 0.025-0085mm Bimetallic Layer Depth 3mm Base Material 38crmoala Nitrided Brittleness Less Than Grade 1 Nitrided Hardness 900-1000hv (HRC 55-65) Transport Package Wooden Cases Specification SGS, ISO9001-2008 Trademark ZHONGYANG SCREW Origin China Mainland HS Code 8477900000 Production Capacity 3000 Sets/Year

Product Description

Product Description

ZHONGYANG SCREW is one of the most history and famous screw barrel brand in China. We have professional and experienced teams in every department of our company. We think professional, quality and service is the basic of business. If you want reliable and helpful screw barrel, we will be your best choice! Please kindly find our detailed information as following:

Injection Molding Machine single screw barrel specification:
Diameter: Φ 20mm-Φ 220mm
Mould clamping force: 250T-3200T
Shot weight: 30G-30000G

Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT

Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting

Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: ≥ 950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm

Terms and Conditions:
Means of transport: Ocean, Air, Express
Production time: About 20-30 days after we receive the advanced payment

Production Process:
Receiving orders →Designing & Drawing confirmation →Blanking Thermal refining →Heat treatment →
Rough Turning →Polishing →Drilling for barrel →Semi Finishing Machining →Bimetallic welding →Centrifugal casting for barrel →Polishing →Nitriding treatment(120 hours) or High frequency quenching→Hard-chrome plating →O. D. Grinding →Honing for barrel →Alignment →Polishing →
Inspecting →Packing & Shipping

ZHONGYANG SCREW's advantage:
First-class designing and researching team;
High quality and durable products of screw barrel;
Most professional sales who can serve for you timely;
Best customer service especially after-sale service;
Powerful company's strength support long-term cooperation.


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