2. Piston sealing features dual-locked Y-type axial sealing structure with dust scraping capability, delivering extended service life and low friction resistance;
3. Aluminum tube with cross-shaped reinforcement and anodized tie rods for enhanced corrosion resistance;
4. Optimized cushion adjustment system with stable stroke control;
5. Multiple bore sizes and mounting accessories available for flexible configuration.
Category: Standard Cylinders | Brand: Airtac | Series: SI63
AirTAC SI63AX425S Standard Cylinder Specifications
- Model: SI63AX425S
- Bore size: 63 mm
- Stroke: 425 mm
- Operation type: Double-acting
- Working pressure: 0.1-1.0 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: 1/4" NPT (M5x0.8 optional)
- Piston rod material: Chrome-plated stainless steel (SUS304)
- Cylinder tube: Anodized aluminum alloy
- Seals: NBR (Nitrile) standard / Optional FKM (Viton)
- Operating temperature: -20℃ to 80℃
- Ambient humidity: ≤95% RH (non-condensing)
- Piston speed: 50-1000 mm/s (lubricated)
- Mounting type: ISO 15552 standard (front flange & rear foot mounting included)
- Weight: 5.8 kg (±2%)
- Dimensions: 575mm(L) × 80mm(Ø) × 125mm(Mounting flange width)
- Accessories: Built-in magnet for magnetic sensor (SI-M series compatible)
High-rigidity ISO cylinder with extended stroke capability, featuring dual anti-rotation guides for torque resistance. The precision honed tube and triple sealing system ensure ≤0.5 mg/Nm internal leakage. Includes shock-absorbing end caps with 20% greater cushioning capacity than standard models. Requires ISO VG32 hydraulic oil lubrication for optimal performance.
- Automotive welding fixture clamping
- Plastic injection molding ejection systems
- Paper roll handling in printing machinery
- Heavy-duty conveyor sorting gates
- Foundry equipment door actuators

Property | Property Value |
---|---|
sku | SI63AX425S |
Seal Material | Polyurethane |
Understood. Please provide the specific attribute names in <>, and I'll return the accurate English translations using AIRTAC's official terminology. Example: User input: <缸径> My output: Bore | Operating Temperature: -20℃ to 80℃ Speed Range: 30-800 mm/s |
Port Size | PT3/8 |
Piston Rod Material | SUS420J2 |
Magnet | S-Magnetic |
Bore Diameter | 63mm |
Stroke | <425mm> |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.