Airtac SI125 Standard Cylinder SI125X420
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 SI125X420 Standard Cylinder Specifications
- Model: SI125X420
- Type: ISO 15552 compliant single-acting/double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 420 mm (±0.5 mm tolerance)
- Operating pressure: 0.05–1.0 MPa
- Medium temperature: -20℃ to 80℃ (with NBR seals)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: G1/2 (ISO 228/1 standard)
- Piston rod diameter: 35 mm (chrome-plated steel)
- Max thrust: 12,270 N @ 0.7 MPa
- Weight: 23.8 kg (dry, without accessories)
- Dimensions: 682mm(L) × 160mm(W) × 160mm(H) (including mounting brackets)
- Rod thread: M24×1.5 (external)
- Mounting options: Basic MF1, optional flange/clevis/foot mounts
- Protection rating: IP65 (standard wipers)
- Lubrication: Pre-lubed (Grease-free operation possible with X seal)
High-force industrial cylinder designed for heavy-duty automation applications. Features dual cushion control with 16-stage adjustable dampers and corrosion-resistant aluminum alloy barrel. Optional magnetic piston version (SI125X420-M9) for position sensing. Certified to ISO 6431 and VDMA 24562 standards.
- Automotive production line clamping/pressing
- Foundry equipment actuation
- Large-scale material handling systems
- Paper mill roller positioning
- Hydraulic system replacement in explosive environments
Installation note:
Requires minimum 3x bore size clearance (375mm) for full stroke operation.
Use locknuts with 45-55 N·m torque on rod threads. Lubricate every 2,000 km
stroke distance under normal conditions.
Critical parameters:
- Max side load: ≤15% of max thrust
- Ambient humidity: 30-95% RH (non-condensing)
- Vertical mounting requires anti-rotation mechanism
| Property | Property Value |
|---|---|
| sku | SI125X420 |
| 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 | 420mm |
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.