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 SI63AX300S Standard Cylinder Specifications
- Model: SI63AX300S
- Bore size: 63mm
- Stroke: 300mm
- Operating pressure: 0.05–1.0 MPa
- Cushion type: Fixed cushion (adjustable on request)
- Port size: M5x0.8 (G1/8 optional)
- Operating temperature: -20℃ to 80℃
- Piston material: Aluminum alloy with hard anodizing
- Rod material: Chrome-plated carbon steel
- Seal material: NBR (Nitrile rubber)
- Mounting type: Foot-mounted (ISO 15552 standard)
- Weight: 2.7kg ±3%
- Dimensions: 430mm(L) × 80mm(W) × 80mm(H)
- Protection rating: IP54 (dust protected & water splashed)
- Repeat accuracy: ±0.5mm
- Max piston speed: 500–750 mm/s
A heavy-duty ISO-compliant pneumatic cylinder featuring wear-resistant construction and precision honed tube. The dual-piston design ensures smooth operation under lateral loads. Equipped with built-in magnet for sensor attachment (SI-U series sensors compatible). Requires 5μm filtered air with lubrication (ISO VG32 recommended).
- Automated assembly line clamping mechanisms
- Plastic injection molding ejector systems
- CNC machine tool door actuators
- Automotive welding fixture positioning
- Palletizing robot arm joints

Property | Property Value |
---|---|
sku | SI63AX300S |
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 | 300mm |
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.