Part I: Solution INTRODUCTION
one. Description: Honed tube is a kind of smooth bore steel tube utilized to manufacture hydraulic cylinder barrels that is the core element of a piece of hydraulic cylinder.
2. Commodity: ST52 Chilly drawn seamless hydraulic cylinder tube
3. Dimensions selection: 40mm*30mm-580mm*500mm
four. Available metal quality:
| SAE/AISI: | SAE1571, SAE1026, SAE1045, SAE4130, SAE4140 |
| DIN: | ST52, ST52.3, ST52.four |
| EN: | E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470 |
| GB: | twenty#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
five. Manufacture method: Chilly rolled, hydraulic cold drawn, hot rolled+deep gap unexciting
6. Delivery issue:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Chilly rolled | Chilly drawn | Anxiety relieved | Annealed | Normalized | Quenched+Tempered |
7. Bore treatment: Honing, skiving&roller burnishing
eight. Bore roughness manage: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
9. Conclude complete: Plain finishes with sq. cuts, cost-free of burrs for honed tubes. Little bevelled finishes for skived&roller burnished tubes.
ten. CZPT export packing: In bundles tied with steel strips. Int&ext oil coating. End plastic caps. External packing by PVC bags and knit baggage.
eleven. CZPTized packing and marking can be provided on ask for.
twelve. H8 tolerance:
| ID selection | Tolerance | ID selection | Tolerance |
| 18< d ≤30 | +/+.033 | a hundred and eighty< d ≤250 | +/+.072 |
| thirty< d ≤50 | +/+.039 | 250< d ≤300 | +/+.081 |
| fifty< d ≤80 | +/+.046 | 300< d ≤315 | +/+.081 |
| 80< d ≤120 | +/+.054 | 315< d ≤400 | +/+.089 |
| 120< d ≤180 | +/+.063 | 400< d ≤500 | +/+.097 |
thirteen. Distinction in between honed tube and skived&roller burnished tube: In hydraulic cylinder industry, there are 2 solutions for bore therapy: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing qualified prospects to different interior surface area picture, but equally ensure great roughness.
Inner Surface Condition OF HONED TUBES:
Interior Surface area Condition OF SKIVED&ROLLER BURNISHED TUBES:
Element II: Often Questioned Queries
1. MOQ: CZPTly Min Order Quantity can be 2-3 tons/size for tubes with OD below 250mm, and 10 tons/dimension for tubes with OD over 250mm. Often, it depends on steel quality you want. If you want unique quality like E410, E470 or alloy metal tube, MOQ should be ten tons/measurement at the very least.
two. Shipping Time: CZPTly, our supply time for honed tubes is all around 40-60 times based on the sizes and portions. It will just take us fifteen-30 days to get uncooked materials. For illustration, if you want 3 tons of small dimension honed tubes 50mm*40mm with roughness of Ra0.25um max, it will take us at least 30 times to hone this measurement.
3. Guarantee&Ensure: Guarantee&assure period of time is 6 months because we deliver the tubes, and we are not dependable for quality dilemma triggered by improper unloading or storage following shipment. We welcome customer’s inspection just before cargo.
four. Payment Method: We acknowledge payment method like T/T, L/C, or D/P, but it is dependent on our investigation about clients. We have a solution to appraise the credit history of buyers from all more than the planet, and time and amount of D/P we can launch is established by the evaluation.
five. Good quality Manage: 90% of the tubes are manufactured from hot rolled seamless pipes. So, top quality of raw substance established quality of concluded tubes. We obtain uncooked substance from secure suppliers who are top steel mills, and we examine the uncooked materials as for each the technical specs. Throughout our creation method, there is inspection and top quality manage in every phase.
Element III: Firm INTRODUCTION
We are a manufacturer of chilly drawn, chilly rolled, and hydraulic cold drawn steel tubes with OD upto 356mm because 2002. Masking an area of about 32000M2, we have twelve normal workshops with 2 hydraulic chilly drawing benches, 4 chain cold drawing benches, and 2 ERW mills. Our facilities addresses all the production processes from pickling, chilly drawing, warmth dealing with, noticed chopping, straightening, inspection, packing to further machining &turning, cold drawing die fabrication, and products repairation&servicing.
Manufacturing facility Visual appeal:
Uncooked Material Stock:
HYDRAULIC Cold DRAWING:
STRAIGHTENING:
Saw Chopping:
HONING:
DEEP Gap Uninteresting/DRILLING:
SKIVING&ROLLER BURNISHING:
