Airtac SI125 Standard Cylinder SI125AX550
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 SI125AX550 Standard Cylinder Specifications
- Model: SI125AX550
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 550 mm
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Front/rear flange mounting (AX series)
- Port size: G1/2 (ISO 6149 thread)
- Piston rod material: Chrome-plated carbon steel (DIN 2391)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber) standard
- Operating temperature: -20℃ to 80℃
- Weight: 24.8 kg (without accessories)
- Dimensions: 785mm(L) × 152mm(W) × 152mm(H)
- Rod end thread: M36×2 external thread
- Protection rating: IP65 (standard wiper seal)
- Lubrication: Pre-lubricated (oil-free operation possible)
High-force industrial cylinder designed for heavy-duty applications requiring precise linear motion. Features corrosion-resistant construction with double-sealed piston rods for extended service life. The magnetic piston version (SI125MAX550) allows position sensing compatibility. Optimized flow paths reduce air consumption by 18% compared to previous generations.
- Automotive press line material handling
- Steel mill rolling equipment
- Plastic injection molding ejectors
- Paper processing machinery
- Foundry die-casting machines
Installation notes:
Maintain 0.5mm minimum clearance between rod and guide bushings.
For vertical mounting exceeding 45° angle, use rod-end support brackets.
Lubricate with ISO VG32 hydraulic oil if operating below -10℃.
- Theoretical thrust (@0.63MPa): 7,722N (extend), 6,940N (retract)
- Max piston speed: 0.5–1.5 m/s (cushioned)
- Service life: 5,000 km travel distance (NBR seals)
- Air consumption per cycle: 16.8 liters (@0.5MPa)
| Property | Property Value |
|---|---|
| sku | SI125AX550 |
| 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 | SUS420J2 |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 550mm |
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.