Airtac SI125 Standard Cylinder SI125X375
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 SI125X375 Standard Cylinder Specifications
- Model: SI125X375
- Type: Double-acting pneumatic cylinder (ISO 15552 standard)
- Bore size: 125 mm
- Stroke: 375 mm (±0.5 mm tolerance)
- Port size: G3/8 (NPT1/2 optional)
- Operating pressure: 0.05–0.9 MPa
- Cushioning: Adjustable pneumatic cushion at both ends
- Piston speed: 50–800 mm/s (lubricated condition)
- Mounting types: Basic, foot-mounted, flange (MF1/MF3), rear clevis
- Rod material: Hard chrome-plated steel (HCP)
- Tube material: Anodized aluminum alloy
- Seal material: NBR/PU (temperature-resistant variant available)
- Temperature range: -20℃ to 80℃ (extended to 150℃ with high-temp seals)
- Protection rating: IP65 (standard wiper seal)
- Weight: 7.8 kg (dry, without accessories)
- Dimensions: 638mm (L) × 155mm (W) × 155mm (H) (full extension)
- Rod thread: M20×1.5 (external)
- Max lateral load: 650 N at full extension
High-force industrial cylinder designed for heavy-duty automation applications. Features wear-resistant construction with chrome-plated piston rod and precision honed tube. Optional magnetic piston version (SI125X375-M) available for position sensing. Requires 5-40μm filtered air with ISO VG32 lubrication recommended for optimal performance.
- Press machine ejection systems
- Foundry equipment actuation
- Automotive assembly line clamping
- Large-scale material handling gates
- Injection molding machine core pulls
Installation note:
Use flexible couplings to accommodate misalignment. For vertical mounting,
install speed controller on lower port to prevent piston free-fall.
Lubricate every 3 months under normal operation (2000 cycles/day).
| Property | Property Value |
|---|---|
| sku | SI125X375 |
| 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 | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 375mm |
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.