Airtac SI125 Standard Cylinder SI125BX325S
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 SI125BX325S Standard Cylinder Specifications
- Model: SI125BX325S
- Type: ISO 15552 compliant single-acting spring return cylinder
- Bore size: Ø125 mm (±0.5mm tolerance)
- Stroke: 325 mm (adjustable cushioning)
- Operating pressure: 0.05-1.0 MPa
- Medium temperature: -20℃ to 80℃
- Port size: G1/2 (ISO 228-1 standard)
- Piston speed: 50-750 mm/s (optimal at 500 mm/s)
- Cushioning type: External adjustable rubber buffer + internal hydraulic damping
- Rod thread: M30×2 external thread (ISO 261 metric)
- Mounting: Standard ISO 15552 mounting accessories compatible
- Seal material: HNBR (Hydrogenated Nitrile) with wear-resistant ring
- Protection rating: IP65 (rod extension), IP54 (main body)
- Weight: 12.8 kg (dry, without accessories)
- Dimensions:
- Length: 648 mm (full retraction)
- Width: 158 mm (including mounting brackets)
- Height: 158 mm (square body profile)
High-torque industrial cylinder designed for heavy-duty linear motion applications. Features dual-stage cushioning system with 5mm adjustment range for smooth deceleration. The chrome-plated piston rod (hardness HRC 45-50) withstands side loads up to 15% of maximum thrust. Requires 40μm filtered air with lubrication (ISO VG32 recommended).
- Automotive production line clamping fixtures
- Plastic injection molding machine ejectors
- Steel mill material handling gates
- Paper processing equipment actuators
- Warehouse automated stacking systems
Installation note:
Maintain 0.5° maximum angular misalignment during mounting. Lubricate rod weekly
with ISO VG32 oil when used in high-cycle applications (>500 cycles/day).
Ambient temperature affects spring return force - derate by 0.5% per ℃ above 40℃.
| Property | Property Value |
|---|---|
| sku | SI125BX325S |
| 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 | SUS304 |
| Magnet | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 325mm |
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.