|
Still deciding? Get samples of $ !
Order Sample
|
| Customization: | Available |
|---|---|
| After-sales Service: | as Specification |
| Warranty: | as Specification |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
| Payment Methods: |
|
|---|---|
| Support payments in USD |
| Secure payments: | Every payment you make on Made-in-China.com is protected by the platform. |
|---|
| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
|---|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
|
Material
|
Steel:Carbon steel/ Mild steel/ Cold roll steel/ Hot roll steel Stainless steel:SS201, SS303, SS304, SS316 etc. Aluminium:AL5052, AL6061, AL6063,AL7075 etc |
|
Surface Treatment
|
Zinc plating, Powder, Passivation, Sand blasting, Brushing & ploshing etc.
|
|
Processing Equipment
|
Large laser cutter
Bending machine
Plasma cutting machine
Punching machine
Wire cutter
CNC machining center
CNC lathe
Automatic lathe machine
Milling machine
Drilling machine
|
|
Drawing Format
|
pdf/.igs./.stp/x_t. etc.
|
|
Drawing Format
|
EXW, FOB, CIF
|
|
Packing of Sheet Metal Stamping
|
PE bag+carton box or other custom packaging
|
|
Applications
|
Auto Parts/Motocycle parts/Contruction Parts/Furniture Parts/Electronic Parts
|
1. Unmatched Dimensional Accuracy & Surface Integrity
Advanced CNC Machining: Utilizing state-of-the-art CNC turning and grinding centers, we achieve tight geometric tolerances (cylindricity, straightness) and precise diameter control (typically to h8/h9 or finer for rods, H8/H9 for bores).
Superior Surface Finishes: Critical sealing surfaces are finished to Ra ≤ 0.2 - 0.4 μm via precision grinding and honing. This mirror-like finish minimizes seal wear, reduces friction, and enhances the integrity of the dynamic seal interface.
Concentricity & Straightness: Guaranteed concentricity between sealing diameters and mounting threads/features, coupled with exceptional rod straightness, prevents side loading, uneven seal wear, and premature failure.
2. Premium Material Selection & Metallurgy
Piston Rods: Manufactured from high-strength alloy steels (e.g., 42CrMo, 45# steel, 304/316 Stainless Steel). Standard rods feature a hardened and chrome-plated surface (hard chrome thickness 25-50μm) for exceptional wear and corrosion resistance.
Cylinder Tubes (Barrels): Precision honed from cold-drawn seamless steel tubing (ST52, C45, 27SiMn), ensuring a consistent, high-quality internal bore. Available in honed (for seal rings) or skived & roller burnished (SRB) finishes for optimal piston seal performance.
Pistons: Machined from durable materials like carbon steel, ductile iron, or aluminum alloys, designed with precisely machined groove geometries for secure seal and bearing ring retention.
3. Optimized Design for Performance & Longevity
Stress-Relieved Components: Critical parts undergo stress-relieving heat treatment to eliminate internal stresses from machining, ensuring dimensional stability under pressure and over time.
Proper Hardness Gradient: Piston rods achieve a core hardness (e.g., HRC 28-32) for toughness and a hard, wear-resistant surface (HRC 65+ for chrome layer) for durability.
Clean, Sharp Grooves: CNC-machined seal and wiper grooves feature defined edges and clean radii to ensure proper seal seating and function.
4. Rigorous Quality Control & Testing
100% Dimensional Inspection: All critical dimensions are verified using micrometers, dial gauges, and CMMs for batch consistency.
Surface Finish Verification: Profilometers are used to confirm surface roughness (Ra, Rz) meets specifications.
Hardness Testing: Core and surface hardness are tested to ensure material specifications are met.
Non-Destructive Testing (Optional): Magnetic particle inspection (MPI) or dye penetrant testing can be performed to detect surface flaws.
){kind=link}