China-Diameter-250mm-Planet-Screw-Cylinder-Planetary-Screw-Cylinder-Screw-Barrel

diameter 250mm planet screw cylinder / planetary screw cylinder / screw barrel

JINLI 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: 

Planetary screw barrel specification:
Diameter: Φ120mm-Φ350mm

Products display: 

Technical information: 
Base materials: 
1)38CrMoAlA (JIS SACM645)      
2)42CrMo (AISI 4140)   
Bimetallic alloy materials: 
1)Ni-based alloy/Deloro alloy    
2)Tungsten carbide/Wolfram carbide
Processing technics: 
Heat treatment
High-frequency quenching
Nitriding treatment
Ionic nitriding treatment
Bimetallic alloy centrifugal casting
Technical parameters: 
Nitriding layer depth: 0.3-0.7mm
Nitrided Hardness: 850-950HV (HRC 50-60)
Nitrided brittleness: Less than grade 1
Surface roughness: Ra 0.4
Linearity of screw: 0.015mm
Bimetallic layer depth: 2 mm
Bimetallic layer hardness: HRC 50-65

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


JL 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. 
 

Welcome to contact us, Tracy will reply you timely! 

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