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 SI125X380S Standard Cylinder Technical Specifications
- Model: SI125X380S
- Type: ISO 15552 compliant single-acting spring return cylinder
- Bore size: 125mm
- Stroke: 380mm (±1.5mm tolerance)
- Operating pressure: 0.1–0.9 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic type (MF1) with front flange & rear foot mounting
- Port size: G1/2 (BSPP thread)
- Piston rod thread: M36×2 external thread
- Material:
- Tube: Aluminum alloy hard anodized
- Piston rod: Chrome-plated carbon steel (Cr-Mo)
- End caps: Die-cast aluminum
- Seal material: High-grade NBR (Nitrile) with wear-resistant ring
- Protection rating: IP65 (standard wiper seal)
- Weight: 18.7kg (dry, without accessories)
- Dimensions:
- Total length: 582mm (stroke 380 + base length)
- Body diameter: 136mm (outer tube dimension)
- Mounting base: 165×125mm (foot mounting surface)
- Rod end protrusion: 56mm (at full retraction)
Heavy-duty industrial cylinder designed for high thrust applications requiring precise linear motion. Features triple sealing system (rod seal, buffer seal, and wiper) with corrosion-resistant construction. The dual cushion adjustment allows fine-tuning of end-position deceleration, reducing impact noise by up to 15dB compared to standard models. Compatible with Auto Switch mounting (AS series magnetic sensors).
- Press machine ejection systems
- Foundry equipment handling
- Automotive assembly line clamping
- Plastic injection molding machine core-pulling
- Heavy conveyor gate control
| Property | Property Value |
|---|---|
| sku | SI125X380S |
| 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 | 380mm |
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.









