Dongguan Ruichen Sealing Co., Ltd.
TO BE O RING KING
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Custom Rubber Bellow Sleeve Black Silicone Heat Resistance RoHs Approved
We can make rubber bellow sleeves according to samples or drawings.
First, please send me 2D drawing, 3D drawing or sample of what you need. From the drawing or sample we can know the dimensions and materials. And then if any special requirement, please also let me know.
Second, we make mold and samples, send the samples to customers for testing.
Third, after the samples confirmed, we start mass production, during production, our QC department will control the quality. Then pack and ship the goods by air or by sea. Production flow as bellow:
Raw material test → Prescribe → Mixing Material → Cutting Material → First Cure →
First Part Inspection → Casual Inspection → Burr Dealing → Eye Inspection → IPQC →
Washing or Grinding → Post Cure → FQC → Packing
Last but not least, after-service. when the products have quality problem, then you can tell me, then we will solve the problems together.
Materials Description:
We usually make the bellow sleeves by NBR or NR, which are very cheap and perform good. But when the orperating temperature is very low or very high , then we suggest silicone as the material.
| Item | NBR | NR | SILICONE |
| Operating Temperature | -40℃~100℃ | -50℃~100℃ | -60℃~200℃ |
| Rebound | Good | Excellent | Limited |
| Tear Resistance | Good | Excellent | Poor |
| Weathering Resistance | Limited | Limited | Excellent |
| Oil & Fuel Resistance | Excellent | Poor | Limited |
From the table, we can choose the material according to the operating conditions.
Application:
Rubber bellow sleeves usually used in machines or automotives, as they can be used for sealing to protect from dust and other liquid.
Image Show:
Item Name: Rubber Bellow Sleeve, Material: Silicone, NR, NBR, Color: Black, custom
FAQ:
1,Are you manufacture or trading company ?
We are manufacture, we have two factories, one located in Shangrao City, Jiangxi Province, one in Dongguan City, Guangdong Province
2,Can I get samples from you ?
Of course, you can. If the samples you need we have in stock, you can get them for free,
only need to pay for the express cost.
3,What's the term of payment ?
Amount < US$2000, 100% paid in advance by paypal or T/T;
Amount >= US$2000, 30% paid in advance, 70% balance before shipment by T/T.
4,Can you produce OEM products ?
Yes, we can produce products by your drawing or samples.
5,What's your MOQ ?
If we have the products in stock , the quantity by your requirement, If we don't have them in stock:
NBR, SIL, SBR, EPDM, NR: 100 US$; PU, HNBR, FKM: 150 US$