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 SI125X140S Standard Cylinder Specifications
- Model: SI125X140S
- Type: ISO 15552 compliant single-acting/double-acting (optional)
- Bore size: 125 mm
- Stroke: 140 mm
- Operating pressure: 0.05–1.0 MPa
- Piston speed: 50–800 mm/s
- Cushioning: Adjustable air cushion at both ends
- Mounting: Standard ISO 15552 front flange (NF series)
- Port size: G3/8 (NPT1/2 optional)
- Rod end thread: M20×1.5 (male)
- Ambient temperature: -20℃ to 80℃
- Piston material: Aluminum alloy with hard anodizing
- Rod material: Chrome-plated stainless steel (SUS304)
- Seal type: NBR/PU seals (FKM available for high temp)
- Weight: 8.6 kg (without accessories)
- Dimensions:
- Extended length: 340 mm
- Retracted length: 200 mm
- Body diameter: 136 mm
- Mounting hole spacing: 160×160 mm
- Sensor compatibility: Built-in magnet for proximity switches
High-force industrial cylinder with ISO mounting compatibility, featuring corrosion-resistant construction and precision-machined guide bands for smooth operation. The double-seal design prevents internal leakage even under 1.0 MPa pressure. Includes wear-resistant buffer sleeves and supports multiple mounting orientations (horizontal/vertical/angled). Requires 40μm filtered lubricated air (ISO 8573-1 class 4).
- Heavy-duty press machines
- Automotive assembly line clamping
- Steel coil handling systems
- Plastic injection molding ejectors
- Paper roll positioning mechanisms
| Property | Property Value |
|---|---|
| sku | SI125X140S |
| 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 | <140mm> |
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.









