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 SI63AX125S Standard Cylinder Specifications
- Model: SI63AX125S
- Type: ISO 6432 standard single-acting spring return cylinder
- Bore size: 125mm
- Stroke range: 25-500mm (customizable)
- Operating pressure: 0.15–0.95 MPa
- Cushioning type: Adjustable pneumatic cushion
- Port size: G3/8 (NPT1/4 optional)
- Piston speed: 50-750 mm/s
- Ambient temperature: -20℃ to 80℃
- Seal material: NBR + polyurethane
- Rod material: Chrome-plated carbon steel
- Tube material: Anodized aluminum alloy
- Weight: 6.8kg (basic stroke 100mm version)
- Dimensions (L×W×H):
- Basic length: 258mm (100mm stroke)
- Body diameter: Ø140mm
- Mounting face: 32×32mm ISO 15552 footprint
- Rod thread: M20×1.5
High-force industrial cylinder featuring corrosion-resistant construction and precision honed tube. The SI63AX125S combines 125mm bore diameter with 1.5mm thick magnetic piston for position sensing compatibility. Its dual adjustable cushioning system minimizes end-impact noise (≤65dB) while maintaining 98% mechanical efficiency. Requires ISO 8573-1:2010 Class 3-4-3 compressed air.
- Press machine ejection systems
- Automotive welding fixture clamping
- Heavy-duty conveyor gate control
- Plastic injection molding machine core pulls
- Steel mill rolling equipment

Property | Property Value |
---|---|
sku | SI63AX125S |
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 | 125mm |
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.