Portion I: Merchandise INTRODUCTION
one. Description: Honed tube is a kind of sleek bore metal tube used to manufacture hydraulic cylinder barrels that is the core portion of a piece of hydraulic cylinder.
two. Commodity: Cold drawn seamless hydraulic cylinder tube
three. Size range: 40mm*30mm-580mm*500mm
four. Available steel quality:
| SAE/AISI: | SAE1571, SAE1026, SAE1045, SAE4130, SAE4140 |
| DIN: | ST52, ST52.three, ST52.four |
| EN: | E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470 |
| GB: | 20#, forty five#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
five. Manufacture approach: Cold rolled, hydraulic chilly drawn, sizzling rolled+deep hole uninteresting
6. Delivery problem:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Cold rolled | Cold drawn | Tension relieved | Annealed | Normalized | Quenched+Tempered |
seven. Bore remedy: Honing, skiving&roller burnishing
eight. Bore roughness control: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
nine. End end: Plain finishes with square cuts, totally free of burrs for honed tubes. Tiny bevelled finishes for skived&roller burnished tubes.
ten. CZPT export packing: In bundles tied with metal strips. Int&ext oil coating. Stop plastic caps. Exterior packing by PVC bags and knit baggage.
eleven. CZPTized packing and marking can be presented upon request.
12. H8 tolerance:
| ID range | Tolerance | ID variety | Tolerance |
| 18< d ≤30 | +/+.033 | one hundred eighty< d ≤250 | +/+.072 |
| 30< d ≤50 | +/+.039 | 250< d ≤300 | +/+.081 |
| 50< d ≤80 | +/+.046 | three hundred< d ≤315 | +/+.081 |
| 80< d ≤120 | +/+.054 | 315< d ≤400 | +/+.089 |
| one hundred twenty< d ≤180 | +/+.063 | four hundred< d ≤500 | +/+.097 |
13. Variation among honed tube and skived&roller burnished tube: In hydraulic cylinder sector, there are 2 solutions for bore treatment method: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing leads to diverse inside area image, but both ensure great roughness.
Internal Floor Situation OF HONED TUBES:
Inside Surface Situation OF SKIVED&ROLLER BURNISHED TUBES:
Part II: Frequently Requested Concerns
one. MOQ: CZPTly Min Order Amount can be 2-3 tons/dimension for tubes with OD below 250mm, and 10 tons/dimension for tubes with OD earlier mentioned 250mm. Sometimes, it is dependent on steel grade you need. If you need unique grade like E410, E470 or alloy steel tube, MOQ must be 10 tons/dimension at least.
two. Supply Time: CZPTly, our shipping time for honed tubes is around forty-sixty days relying on the measurements and portions. It will just take us fifteen-30 days to get uncooked materials. For example, if you need 3 tons of little size honed tubes 50mm*40mm with roughness of Ra0.25um max, it will get us at minimum 30 times to hone this dimension.
three. Warranty&Ensure: Guarantee&assure period is 6 months because we supply the tubes, and we are not liable for top quality problem brought on by mistaken unloading or storage after shipment. We welcome customer’s inspection just before shipment.
four. Payment Strategy: We accept payment strategy like T/T, L/C, or D/P, but it depends on our investigation about clients. We have a solution to consider the credit of consumers from all in excess of the globe, and time and volume of D/P we can release is determined by the evaluation.
5. High quality Manage: ninety% of the tubes are created from very hot rolled seamless pipes. So, high quality of raw content identified good quality of finished tubes. We obtain raw substance from steady suppliers who are major steel mills, and we examine the raw substance as for each the technical specs. Throughout our production procedure, there is inspection and quality control in every phase.
Portion III: Firm INTRODUCTION
We are a manufacturer of cold drawn, cold rolled, and hydraulic chilly drawn metal tubes with OD upto 356mm because 2002. Covering an spot of about 32000M2, we have twelve regular workshops with 2 hydraulic cold drawing benches, 4 chain cold drawing benches, and 2 ERW mills. Our facilities covers all the manufacturing procedures from pickling, chilly drawing, heat treating, noticed reducing, straightening, inspection, packing to more machining &turning, cold drawing die fabrication, and products repairation&maintenance.
Manufacturing unit Visual appeal:
Uncooked MATERIALSTOCK:
HYDRAULIC Chilly DRAWING:
STRAIGHTENING:
Noticed Chopping:
HONING:
DEEO Gap Boring/DRILLING:
SKIVING&ROLLER BURNISHING:
