Element I: Item INTRODUCTION
one. Description: Honed tube is a kind of easy bore steel tube used to manufacture hydraulic cylinder barrels that is the core element of a piece of hydraulic cylinder.
two. Commodity: E355 Honed tube
3. Dimension variety: 40mm*30mm-580mm*500mm
four. Offered metal 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#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
5. Manufacture method: Cold rolled, hydraulic cold drawn, hot rolled+deep hole boring
6. Delivery issue:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Cold rolled | Cold drawn | Anxiety relieved | Annealed | Normalized | Quenched+Tempered |
seven. Bore treatment: 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.
9. Finish finish: Plain ends with sq. cuts, cost-free of burrs for honed tubes. Minor bevelled ends for skived&roller burnished tubes.
10. CZPT export packing: In bundles tied with metal strips. Int&ext oil coating. Finish plastic caps. External packing by PVC bags and knit luggage.
eleven. CZPTized packing and marking can be supplied on request.
twelve. H8 tolerance:
| ID selection | Tolerance | ID assortment | Tolerance |
| 18< d ≤30 | +/+.033 | one hundred eighty< d ≤250 | +/+.072 |
| thirty< d ≤50 | +/+.039 | 250< d ≤300 | +/+.081 |
| fifty< d ≤80 | +/+.046 | three hundred< d ≤315 | +/+.081 |
| eighty< d ≤120 | +/+.054 | 315< d ≤400 | +/+.089 |
| 120< d ≤180 | +/+.063 | 400< d ≤500 | +/+.097 |
13. Variation amongst honed tube and skived&roller burnished tube: In hydraulic cylinder industry, there are 2 solutions for bore remedy: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing leads to various interior surface image, but the two make sure good roughness.
Inner Area Situation OF HONED TUBES:
Internal Surface Condition OF SKIVED&ROLLER BURNISHED TUBES:
Component II: Usually Questioned Queries
1. MOQ: CZPTly Min Purchase Amount can be 2-3 tons/measurement for tubes with OD underneath 250mm, and 10 tons/measurement for tubes with OD above 250mm. Occasionally, it is dependent on metal grade you require. If you want particular grade like E410, E470 or alloy steel tube, MOQ need to be 10 tons/dimension at minimum.
2. Delivery Time: CZPTly, our delivery time for honed tubes is about forty-60 days relying on the sizes and portions. It will take us fifteen-30 days to get uncooked content. For example, if you require 3 tons of modest size honed tubes 50mm*40mm with roughness of Ra0.25um max, it will take us at minimum 30 times to hone this dimension.
3. Warranty&Ensure: Guarantee&guarantee period of time is 6 months since we deliver the tubes, and we are not liable for good quality dilemma brought on by incorrect unloading or storage right after cargo. We welcome customer’s inspection just before cargo.
four. Payment Method: We accept payment approach like T/T, L/C, or D/P, but it is dependent on our investigation about customers. We have a solution to evaluate the credit score of consumers from all over the planet, and time and volume of D/P we can launch is decided by the evaluation.
5. Good quality Manage: ninety% of the tubes are manufactured from very hot rolled seamless pipes. So, quality of raw material determined top quality of concluded tubes. We purchase raw substance from steady suppliers who are major steel mills, and we examine the uncooked content as for every the specs. In the course of our generation method, there is inspection and good quality management in each stage.
Component III: Business INTRODUCTION
We are a manufacturer of cold drawn, cold rolled, and hydraulic chilly drawn metal tubes with OD upto 356mm since 2002. Covering an spot of about 32000M2, we have twelve normal workshops with 2 hydraulic cold drawing benches, 4 chain cold drawing benches, and 2 ERW mills. Our services handles all the production procedures from pickling, cold drawing, warmth treating, observed slicing, straightening, inspection, packing to additional machining &turning, chilly drawing die fabrication, and tools repairation&maintenance.
Manufacturing facility Look:
Uncooked Materials Stock:
HYDRAULIC Chilly DRAWING:
MULTI-ROLLER STRAIGHTENING:
STRAIGHTENING BY Press:
Saw Cutting:
LATHES:
HONING:
DEEP Hole Uninteresting/DRILLING:
SKIVING&ROLLER BURNISHING:
