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304 Stainless Steel Precision Flange Positioning Piston
This precision flange-type positioning piston is specially designed for precision equipment. Integrally CNC turn-mill machined from corrosion-resistant 304 stainless steel, with stepped flange and central coaxial through-hole structure. It realizes equipment shaft positioning, axial guidance, piston reciprocating motion and sealing cooperation, serving as a core non-standard precision structural part for hydraulic, pneumatic and automation transmission systems.
- Processing Equipment: CNC Lathe, Turn-Mill Machining Center, CNC Machining Center
- Roundness Tolerance: ≤0.005mm
- Coaxiality Accuracy: ≤0.008mm
- Dimensional Tolerance: ±0.01mm
- Surface Roughness: Ra 0.4 ~ Ra 1.6
- Material: 304 Stainless Steel (316 Stainless Steel / 45# Steel / Aluminum Alloy optional)
- Production Capabilities: Prototyping, Low-volume Customization, Mass-volume Production
- Structure Form: Stepped flange, central coaxial through-hole, precision outer diameter profile, end face positioning holes
- Mounting Form: Shaft system guidance fit, flange end face positioning, piston reciprocating components, equipment sealing mating parts
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Low-volume production places higher demands on consistency and delivery efficiency. Backed by high-precision equipment and a stable production system, KT maintains reliable output even in small batches—ensuring each part meets consistent dimensional accuracy and quality standards. By minimizing batch variation and uncertainty, we help reduce trial risks and keep projects moving forward efficiently.
When handling high-mix, low-volume demands, KT remains responsive while maintaining delivery pace, without compromising quality or lead time.
Detailed Description
This precision flange positioning piston is a core guiding and sealing part for hydraulic/pneumatic equipment and automation transmission mechanisms. Integrally turn-mill machined from stainless steel bar, the outer stepped flange surface is precision processed to ensure installation positioning accuracy. The central through-hole is formed in one pass with high coaxiality, enabling coaxial guidance of the shaft system and piston reciprocating motion, perfectly matching with cylinders and seals to reduce friction and leakage, ensuring equipment operation stability and transmission efficiency. Stainless steel material is corrosion-resistant, wear-resistant and high-strength, suitable for humid, acidic and high-pressure industrial environments, with excellent batch consistency and interchangeability.
Product Advantages
- 304 stainless steel material, corrosion & oxidation resistant, rust-proof, suitable for high-pressure, humid and acidic complex working conditions
- Integrated stepped flange structure, high positioning accuracy, no eccentricity and shake after installation
- High-roundness outer diameter profile, tight fit with cylinders/seals, low friction resistance and good sealing performance
- Stable coaxiality tolerance, excellent batch consistency, suitable for high-speed reciprocating motion conditions
- Precision turned/polished smooth surface, wear-resistant and durable, much longer service life than ordinary turned parts
- Full non-standard customization supported, outer diameter, step size and through-hole specifications can be modified on demand
Application Industries
🏭 Automation Equipment Industry
Automation equipment cylinder pistons, hydraulic system guiding pistons, equipment shaft system positioning flanges, reciprocating mechanism guides
🤖 Industrial Robot Industry
Robot hydraulic/pneumatic system pistons, robot joint transmission guides, robot end effector cylinder parts
✈️ Aerospace Supporting Industry
Aviation hydraulic equipment pistons, aerospace ground test equipment guides, aviation lightweight precision transmission parts
🚗 Automotive Intelligent Manufacturing Industry
Auto hydraulic system pistons, parts assembly line pneumatic components, automotive inspection equipment guiding pistons
🔬 Semiconductor & Electronics Industry
Semiconductor equipment pneumatic components, chip test equipment guiding pistons, SMT equipment transmission system parts
Detailed Parameter Table
| Parameter Item | Technical Specification |
|---|---|
| Product Name | Precision Flange Positioning Piston / Guiding Shaft Parts |
| Main Material | 304 Stainless Steel (316 Stainless Steel / 45# Carbon Steel / Aluminum Alloy optional) |
| Manufacturing Process | CNC Turn-Mill Composite Precision Machining |
| Outer Diameter Roundness Tolerance | ≤0.005mm |
| Coaxiality Accuracy | ≤0.008mm |
| Dimensional Tolerance | ±0.01mm |
| Surface Roughness | Ra 1.6 (As-machined) / Ra 0.8 (After polishing) / Ra 0.4 (Mirror polished) |
| Structure Form | Integrated stepped flange + central coaxial through-hole |
| Surface Treatment | Stainless steel natural passivation, electropolishing; Carbon steel blackening / galvanizing |
| Production Capabilities | Prototyping, Low-volume Customization, Mass-volume Production |
| Working Conditions | Hydraulic/pneumatic reciprocating motion, shaft system guidance & positioning, high-pressure industrial environment |
