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Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2.Honed tube ----- used in Elevator buffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
Xinpeng Have passed ISo9001 verified from 2008; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng. Mainly produce precision tube as cold drawn/rolled tube honed and SRB tube, mainly used in Hydraulic cylinder and mechanical using.
Size | ID*OD | (mm) | These sizes have stock, | ||||
40*50 | 90*110 | 140*170 | 60*45 | 120*140 | 180*205 | ||
40*55 | 95*110 | 145*170 | 70*57 | 125*140 | 90*105 | ||
50*60 | 95*115 | 150*170 | 90*80 | 125*145 | 70*85 | ||
50*65 | 100*110 | 150*175 | 102*90 | 125*150 | 70*90 | ||
55*70 | 100*114 | 150*180 | 50*40 | 130*150 | 75*90 | ||
60*70 | 100*115 | 155*180 | 55*40 | 130*155 | 140*165 | ||
60*75 | 100*120 | 160*175 | 180*210 | 130*160 | 70*80 | ||
60*78 | 100*125 | 160*180 | 180*215 | 135*160 | 70*82 | ||
63*73 | 105*125 | 160*185 | 180*220 | 140*160 | 165*205 | ||
63*75 | 110*125 | 160*190 | 185*205 | 80*100 | 170*200 | ||
63*76 | 110*130 | 160*195 | 185*215 | 80*92 | 85*100 | ||
63*78 | 115*130 | 165*190 | 185*220 | 80*95 | 180*200 | ||
65*80 | 115*135 | 165*140 | 140*120 | 146*125 | 30*25 | ||

Our quality is the top five in China. Raw material is mainly from some famous refinery steel mills, such as BAO STEEL,TPCO, HENGYANG STEEL PIPE, which are the best and largest raw material manufacturers in China.
We have been through ISO9001:2015 international quality system certification.
Warranty period for our honed tubes and chrome bars is 2 years. For some special or important customers, the period is 5 years.
All the orders, records of production and inspection would be kept for 5 years
High Precision:
Honed tube (Roughness of tube is 0.2μm and straightness is less than 0.15/1000), Product details are completely according to International Standard, (Most of domestic mills don’t do this in order to reduce cost)
Delivery time is very fast. The average delivery time is 5-30 days after confirming the orders.
Package: bundle with steel strips, braiding parcel at outside
Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.


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