2. Piston features bidirectional Y-seal structure with cushioning function, offering extended service life and low friction resistance;
3. Aluminum barrel with cruciform reinforcement and black-anodized piston rod for enhanced corrosion resistance;
4. Precision machined cylinder surface ensures smooth operation;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AIRTAC | Series: SI125
AirTAC SI125X630 Standard Cylinder Specifications
- Model: SI125X630
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 630 mm (±0.5mm tolerance)
- Operating pressure: 0.1–1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: G3/8 (1/2" NPT optional)
- Mounting types: Basic type (MF1), front flange (MF2), rear flange (MF3), trunnion (MP4)
- Material: Aluminum alloy cylinder tube, hard-anodized piston rod (Cr-Mo steel)
- Seal material: NBR (nitrile rubber) standard / FKM (Viton) optional
- Piston speed: 50–1000 mm/s (optimal range 200–500 mm/s)
- Lubrication: Pre-lubricated (ISO VG32 recommended for maintenance)
- Durability: ≥5,000 km (piston rod travel distance)
- Weight: 14.8 kg (without accessories)
- Dimensions: 800mm(L) × 125mm(Ø) × 198mm(H) (with standard mounting brackets)
High-thrust industrial cylinder designed for heavy-duty automation applications. Features precision honed inner tube with wear-resistant coating and corrosion-resistant piston rod. Integrated magnet slots for position sensors (SI-M series compatible). Optional rod lock mechanism available for vertical applications.
- Press machine ejection systems
- Steel coil handling equipment
- Automotive welding fixture actuation
- Plastic injection molding machine core pulls
- Palletizing robot end-effector drives
| Property | Property Value |
|---|---|
| sku | SI125X630 |
| 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°C to 80°C Speed Range: 30-500 mm/s |
| Port Size | PT 1/2 |
| Piston Rod Material | Medium Carbon Steel |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 630mm |
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.









