Part I: Item INTRODUCTION
1. Description: Honed tubing is a kind of easy bore steel tube utilized to manufacture hydraulic cylinder barrels that is the core element of a piece of hydraulic cylinder.
two. Commodity: SAE1571 honed tubing for hydraulic cylinder
3. Dimensions assortment: 40mm*30mm-580mm*500mm
four. Accessible metal grade:
| SAE/AISI: | SAE1571, SAE1026, SAE1045, SAE4130, SAE4140 |
| DIN: | ST52, ST52.3, ST52.4 |
| EN: | E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470 |
| GB: | 20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
5. Manufacture approach: Cold rolled, hydraulic cold drawn, scorching rolled+deep gap boring
6. Supply condition:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Cold rolled | 冷拔 | Pressure relieved | Annealed | Normalized | Quenched+Tempered |
seven. Bore treatment: Honing, skiving&roller burnishing
eight. Bore roughness handle: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
nine. Stop end: Basic finishes with sq. cuts, cost-free of burrs for honed tubes. Tiny bevelled ends for skived&roller burnished tubes.
10. CZPT export packing: In bundles tied with metal strips. Int&ext oil coating. Stop plastic caps. External packing by PVC bags and knit baggage.
eleven. CZPTized packing and marking can be offered on ask for.
twelve. H8 tolerance:
| ID variety | 宽容 | ID variety | 宽容 |
| 18< d ≤30 | +/+.033 | a hundred and eighty< d ≤250 | +/+.072 |
| 30< d ≤50 | +/+.039 | 250< d ≤300 | +/+.081 |
| fifty< d ≤80 | +/+.046 | 300< d ≤315 | +/+.081 |
| eighty< d ≤120 | +/+.054 | 315< d ≤400 | +/+.089 |
| one hundred twenty< d ≤180 | +/+.063 | four hundred< d ≤500 | +/+.097 |
thirteen. Big difference amongst honed tube and skived&roller burnished tube: In hydraulic cylinder industry, there are 2 solutions for bore treatment: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing leads to different inner floor graphic, but each make sure excellent roughness.
Interior Area Problem OF HONED TUBES:
Inner Area Condition OF SKIVED&ROLLER BURNISHED TUBES:
Part II: Regularly Requested Concerns
1. MOQ: CZPTly Min Order Quantity can be two-three tons/dimensions for tubes with OD below 250mm, and ten tons/dimension for tubes with OD above 250mm. Occasionally, it depends on steel grade you require. If you need particular quality like E410, E470 or alloy steel tube, MOQ need to be ten tons/size at minimum.
2. Supply Time: CZPTly, our supply time for honed tubes is about 40-sixty times relying on the sizes and portions. It will take us fifteen-30 times to get uncooked content. For case in point, if you need 3 tons of little dimension honed tubes 50mm*40mm with roughness of Ra0.25um max, it will consider us at least 30 days to hone this size.
三。 Warranty&Promise: Guarantee&promise interval is 6 months given that we deliver the tubes, and we are not accountable for high quality dilemma induced by incorrect unloading or storage following shipment. We welcome customer’s inspection just before shipment.
4. Payment Method: We settle for payment technique like T/T, L/C, or D/P, but it depends on our investigation about consumers. We have a solution to evaluate the credit rating of consumers from all above the world, and time and amount of D/P we can launch is decided by the analysis.
five. Top quality Control: 90% of the tubes are made from scorching rolled seamless pipes. So, high quality of raw materials identified good quality of concluded tubes. We purchase raw substance from secure suppliers who are leading steel mills, and we inspect the raw content as per the requirements. Throughout our manufacturing procedure, there is inspection and good quality manage in every phase.
Component III: Firm INTRODUCTION
We are a manufacturer of cold drawn, cold rolled, and hydraulic cold drawn metal tubes with OD upto 356mm because 2002. Masking an area of about 32000M2, we have twelve normal workshops with 2 hydraulic cold drawing benches, 4 chain chilly drawing benches, and 2 ERW mills. Our amenities handles all the manufacturing techniques from pickling, chilly drawing, warmth dealing with, observed reducing, straightening, inspection, packing to more machining &turning, cold drawing die fabrication, and tools repairation&maintenance.
Manufacturing unit Visual appeal:
Uncooked Materials Inventory:
HYDRAULIC Cold DRAWING:
STRAIGHTENING:
Observed Reducing:
LATHES:
HONING:
SKIVING&ROLLER BURNISHING: