Airtac SI125 Standard Cylinder SI125X425S
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 SI125X425S Standard Cylinder Specifications
- Model: SI125X425S
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125 mm
- Stroke: 425 mm (±1.5mm tolerance)
- Operating pressure: 0.15–0.9 MPa (21–130 psi)
- Cushioning: Adjustable pneumatic cushion at both ends
- Port size: 1/2" NPT (G1/2 optional)
- Piston rod thread: M20×1.5 external thread
- Mounting style: Basic MF1 (ISO 15552 mounting interfaces)
- Temperature range: -20℃ to 80℃ (NBR seals)
- Material:
- Tube: Aluminum alloy, hard anodized
- End caps: Aluminum alloy
- Piston rod: Chrome-plated carbon steel (4μm min. thickness)
- Seal type: High-grade NBR (Nitrile) wiper and rod seals
- Weight: 9.8 kg (excluding accessories)
- Dimensions:
- Total length: 544 mm (stroke + end caps)
- Body diameter: 125 mm ±0.5mm
- Rod end height: 22 mm (from centerline)
- Mounting hole spacing: 180×180 mm (ISO pattern)
High-torque industrial cylinder optimized for heavy-duty linear motion applications. Features corrosion-resistant construction with precision honed tube (Ra≤0.4μm) and dual anti-rotation guides. Includes magnetic piston (D-M9B sensor compatible) for position feedback. Requires ISO VG32 hydraulic oil lubrication if used in high-cycle applications (>1 million cycles).
- Automotive welding fixture clamping
- Steel mill conveyor gate actuation
- Plastic injection molding ejector systems
- Paper processing machinery
- Heavy material handling robots
Installation note:
Maximum side load ≤15% of rated thrust. For vertical mounting,
use guided carriage systems. Lubricate rod weekly in dusty environments
using Class 2 grease per ISO 6743-4.
| Property | Property Value |
|---|---|
| sku | SI125X425S |
| 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 | <425mm> |
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.