We take 'strengthening management, optimizing service, quality first, reputation first' as our tenet, and provide you with excellent S45C Cold Drawn Honed Tube, External Chrome Plated Honed Tube, St52 Cold Drawn Tube at a price-performance ratio. We are committed to providing customers with satisfactory products with before, during and after sales service. We always follow the principle 'Quality Very first, Prestige Supreme'. We encourage the courage to innovate and give innovators the necessary tolerance to make the industry flourish. Our company is equipped with a number of experienced management and R&D elites, so you can trust on our professional technology and skills.
Chrome Plated Cylinder Barrel Introduction
Chrome plated Honed Tubes are presicion tubes with smooth inside and with chrome plated , they also could be skived and burnished pipe. Tubes or pipes inside tolerance could be H10, H9 or H8. Outside tolerance, wall thickness tolerance are produced according to seamless cold drawn tubes for precision application standard GB/T3639-2009 , EN10305 or DIN2391 standard. Material SAE1020, 20#, ST45, CK45, ST52, E355 tubes and so on for you to choose. IF you are looking for chrome plated tubes for hydraulic cylinder pipes or pneumatic cylinder tubes, please contact us without any hesitation.
Chrome Plated Cylinder Barrel technical parameters and Details
Application: hydraulic cylinder, pneumatic cylinder, oil cylinder, telescopic cylinder.
Chrome thickness: usually 15 to 20 microns.
Original: Jiangsu, China
Certification: ISO9001.
Material: SAE1020, 20#, ST45, CK45, ST52, E355
Payment term: TT, LC
Delivery date: usually 20 to 40 days.
Packing: packed in bundle, oiled inside, with caps on both ends.
Market: Middle East/ Africa/Asia/South America/Europe/North America
MOQ: Depends on exact size and material.
Size and Tolerance:
Working method | Cylinder ID （mm） | Length （m） | Straightness （mm/m） | Tolerance on ID | Tolerance on WT | Roughness （μm） |
Cold drawn | 40-320 | ≤12M | 0.2-0.5 | / | ±5% | 0.8-1.6 |
Cold rolling | 30-100 | ≥12M | 0.2-0.5 | / | ±5% | 0.8-1.2 |
cold drawn- honed | 40-500 | 8M | 0.2-0.3 | H8-H9 | ±5% | 0.2-0.8 |
Cold drawn-skived | 40-400 | 7M | 0.2-0.3 | H8-H9 | ±5% | ≤0.4 |
Deep hole boring- honed | 320-400 | 8M | 0.2-0.3 | H7-H9 | ±8% | ≤0.8 |
Deep hole boring- skived | 320-400 | 7M | 0.2-0.3 | H8-H9 | ±8% | ≤0.4 |
Production process
Raw material – annealing for material of 45#, 27SiMn, 25Mn – Acid cleaning – parkerizing & Saponifying – cold drawn – leveling – saw off bad section – stress relieving – leveling –honing or skiving – chrome plating - inspection – oiled plated - packing
Quality control
1. We only buy raw material from famous tube factory, and Checking raw material quality before production.
2. We check the tube ID tolerance, OD tolerance and surface after cold drawn one by one.
3. We inspect the honed tube inside tolerance and surface again one by one after honing or skiving.
4. We measure the chrome thickness .
FAQ
1. Q:How can i get to your factory?
A:Our factory is near shanghai Airport, and then you could take fast train from Shanghai to Wuxi Station.
2. Q:If i will need to stay in your place for few days, is that possible to book the hotel for me?
A:It’s always my pleasure, hotel booking service is available.
3. Q:What is your minimum order quantity, can you send me samples?
A: the Exact MOQ depends on your exact requirement. And sample is available.
4. Q:What is the delivery time?
A: Usually from 20 to 40 days.
5. Q: May i know which payment will be accepted by your company?
A:So far 30% deposit paid by T/T, balance before delivery. L/C at sight also ok.
6. Q:Is your price competitive?
A: Only good quality we supply. Surely we will give you best factory price based on
superior product and service.
Faced with economic globalization, we are determined to become a leader in the Chrome-Plating Screw Barrel for PVC Plastic Extruded Machine industry and surpass ourselves. We sincerely hope to cooperate with you, share success together, and forge ahead firmly to a more brilliant future. We always firmly believe that the development of an enterprise must have a broad vision, a continuous spirit of innovation, and timely adjustment of development strategies according to market needs. Our company promises to become a bright star in the industry with excellent quality, perfect service and the alliance of all walks of life.
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