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 SI125X770S Standard Cylinder Specifications
- Model: SI125X770S
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 770 mm
- Operating pressure: 0.15-1.0 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic type (optional accessories: MF1~MF8, MP2~MP4)
- Port size: G3/8 (M16x1.5 adapter included)
- Temperature range: -20℃ to 80℃
- Piston rod material: Hard chrome-plated 45# steel
- Cylinder tube: High-strength aluminum alloy with oxidation-resistant coating
- Seal material: Heat-resistant NBR (Nitrile rubber)
- Weight: 12.8 kg (including rod end accessories)
- Dimensions: 920mm(L) × 148mm(W) × 148mm(H) (Full extension length)
- Rod thread: M20x1.5 external thread
- Max theoretical force: 1533N @0.63MPa (extending), 1324N @0.63MPa (retracting)
- Max speed: 0.1-1.5 m/s
- Protection rating: IP65 (standard), IP67 (optional)
High-load industrial cylinder featuring precision honed tubing and multi-stage buffering system. Designed for heavy-duty cycles with 50km+ service life rating. Includes magnetic piston for sensor compatibility (SI-M125 variant available with built-in magnet). Requires air lubrication - 1-2 drops of ISO VG32 oil per 1m³ airflow recommended.
- Automotive production line clamping fixtures
- Steel coil handling equipment
- Injection molding machine ejectors
- Hydraulic press assist systems
- Warehouse automated stacking robots
| Property | Property Value |
|---|---|
| sku | SI125X770S |
| 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 | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 770mm |
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.









