Airtac SI125 Standard Cylinder SI125X250
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 SI125X250 Standard Cylinder Specifications
- Model: SI125X250
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 250 mm (±0.5mm tolerance)
- Operating pressure: 0.05–1.0 MPa (5-10 bar)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Piston speed: 50–800 mm/s (lubricated)
- Ambient temperature: -20℃ to 80℃
- Port size: G1/2 (BSPP thread)
- Rod end thread: M33×2 (external)
- Seal material: NBR (standard), optional FKM for high temp
- Weight: 7.8 kg (bare cylinder), 8.3 kg (with magnetic piston)
- Dimensions (L×W×H):
- Retracted length: 445 mm
- Extended length: 695 mm
- Body width: 140 mm (mounting face)
- Height with base: 165 mm
- ISO mounting variants:
- Basic: MA1 (front flange)
- Optional: MB1 (rear flange), MP4 (center trunnion)
High-force industrial cylinder with corrosion-resistant aluminum alloy body and hard chrome-plated piston rod. Features wear-resistant guide bushings and integrated magnet for position sensing. Designed for heavy-duty cycles (up to 5 million cycles at rated load). Requires ISO VG32 hydraulic oil mist lubrication for optimal performance.
- Metal stamping press ejection systems
- Automotive welding fixture clamping
- Packaging machine lid press mechanisms
- Foundry equipment door actuators
- Plastic injection molding machine core pulls
Installation guidelines:
Maintain 0.5mm minimum alignment tolerance between rod end and load.
Use flexible couplings for side-loaded applications.
Lubricate through air supply (1-2 drops/m³) for non-maintenance lubrication systems.
Critical note:
Avoid lateral forces exceeding 150N.
For vertical mounting, always use counterbalance valves.
Maximum side load capacity: 20% of piston thrust at 6 bar.
| Property | Property Value |
|---|---|
| sku | SI125X250 |
| 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 | <250MM> → <250mm> |
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.