Element I: Item INTRODUCTION
1. Description: Honed tube is a kind of clean bore steel tube utilised to manufacture hydraulic cylinder barrels that is the core part of a piece of hydraulic cylinder.
2. Commodity: E355 cold drawn seamless honed metal tube for hydraulic cylinder
3. Dimensions range: 40mm*30mm-580mm*500mm
4. Obtainable steel grade:
| SAE/AISI: | SAE1571, SAE1026, SAE1045, SAE4130, SAE4140 |
| DIN: | ST52, ST52.3, ST52.4 |
| EN: | E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410, E470 |
| GB: | twenty#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn, |
5. Manufacture approach: Chilly rolled, hydraulic cold drawn, very hot rolled+deep hole unexciting
6. Delivery problem:
| BK | BKW | BKS | GBK | NBK | Q+T |
| +C | +LC | +SR | +A | +N | |
| Cold rolled | Cold drawn | Pressure relieved | Annealed | Normalized | Quenched+Tempered |
seven. Bore therapy: Honing, skiving&roller burnishing
8. Bore roughness manage: Ra0.25um max or Ra0, 35um max for honed tubes, Ra0.25um max for skived&roller burnished tubes.
nine. End finish: Basic finishes with square cuts, free of charge of burrs for honed tubes. Little bevelled ends for skived&roller burnished tubes.
ten. CZPT export packing: In bundles tied with steel strips. Int&ext oil coating. End plastic caps. Exterior packing by PVC bags and knit baggage.
eleven. CZPTized packing and marking can be presented upon request.
twelve. H8 tolerance:
| ID selection | Tolerance | ID variety | Tolerance |
| eighteen< d ≤30 | +/+.033 | 180< d ≤250 | +/+.072 |
| 30< d ≤50 | +/+.039 | 250< d ≤300 | +/+.081 |
| 50< d ≤80 | +/+.046 | three hundred< d ≤315 | +/+.081 |
| eighty< d ≤120 | +/+.054 | 315< d ≤400 | +/+.089 |
| 120< d ≤180 | +/+.063 | four hundred< d ≤500 | +/+.097 |
13. Big difference between honed tube and skived&roller burnished tube: In hydraulic cylinder sector, there are 2 solutions for bore therapy: Honing, and skiving&roller burnishing. Honing or skiving&roller burnishing prospects to different inner floor impression, but the two guarantee very good roughness.
Interior Area Problem OF HONED TUBES:
Inner Surface Condition OF SKIVED&ROLLER BURNISHED TUBES:
Component II: Often Questioned Queries
one. MOQ: CZPTly Min Order Amount can be 2-3 tons/dimension for tubes with OD underneath 250mm, and 10 tons/size for tubes with OD earlier mentioned 250mm. At times, it is dependent on steel grade you need. If you need to have particular grade like E410, E470 or alloy metal tube, MOQ must be 10 tons/dimension at the very least.
2. Shipping Time: CZPTly, our shipping time for honed tubes is close to forty-60 days based on the measurements and quantities. It will get us 15-thirty days to get raw materials. For illustration, if you need 3 tons of little dimensions honed tubes 50mm*40mm with roughness of Ra0.25um max, it will just take us at the very least 30 times to hone this dimensions.
three. Guarantee&Guarantee: Guarantee&ensure period is 6 months given that we provide the tubes, and we are not responsible for top quality dilemma caused by wrong unloading or storage soon after shipment. We welcome customer’s inspection just before shipment.
four. Payment Approach: 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 assess the credit score of buyers from all over the world, and time and amount of D/P we can launch is identified by the evaluation.
5. Quality Manage: ninety% of the tubes are manufactured from very hot rolled seamless pipes. So, good quality of uncooked content identified high quality of finished tubes. We purchase uncooked materials from secure suppliers who are leading metal mills, and we inspect the uncooked content as for every the specifications. For the duration of our generation treatment, there is inspection and top quality manage in each phase.
Component III: Firm INTRODUCTION
We are a manufacturer of chilly drawn, cold rolled, and hydraulic chilly drawn steel tubes with OD upto 356mm because 2002. Masking an spot of about 32000M2, we have 12 common workshops with 2 hydraulic chilly drawing benches, 4 chain cold drawing benches, and 2 ERW mills. Our services handles all the manufacturing methods from pickling, cold drawing, heat treating, saw reducing, straightening, inspection, packing to even more machining &turning, chilly drawing die fabrication, and gear repairation&maintenance.
Manufacturing unit Look:
Raw Materials Stock:
HYDRAULIC Chilly DRAWING
STRAIGHTENING:
Slicing:
Warmth Managing FURNACE:
LATHES:
HONING:
DEEP Gap Uninteresting/DRILLING:
SKIVING&ROLLER BURNISHING:
