Airtac SI125 Standard Cylinder SI125X250H
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 SI125X250H Standard Cylinder Technical Specifications
- Model: SI125X250H
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 125mm
- Stroke: 250mm (±1.5mm tolerance)
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Adjustable hydraulic buffer (both ends)
- Mounting style: Basic type (optional flange/mid-trunnion)
- Port size: G1/2 (BSPP thread)
- Piston rod material: Chrome-plated carbon steel (Cr≥0.8μm)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber)
- Temperature range: -20℃ to 80℃
- Weight: 12.3kg (without accessories)
- Dimensions:
- Total length: 492mm (stroke 250 + 242mm base)
- Width: 146mm (mounting face to port side)
- Height: 146mm (cylinder diameter + mounting lugs)
- Piston rod thread: M30×1.5 (external)
- Max piston speed: 0.1–1.5 m/s
- Protection rating: IP65 (wipers included)
- Built-in magnet: Optional (add "-M" suffix to model)
High-force industrial cylinder designed for heavy-duty automation applications. Features corrosion-resistant construction with hard-anodized barrel and double-sealed piston. The H-series hydraulic cushioning reduces end-impact noise by 40% compared to standard models. Requires ISO VG32 hydraulic oil for buffer adjustment.
- Metal stamping press ejection systems
- Automotive welding fixture positioning
- Injection molding machine core-pull mechanisms
- Palletizing robot end-effector drives
- Steel mill conveyor gate actuators
Installation guidelines:
Maximum side load ≤15% of thrust capacity. Lubricate rod with ISO VG32 oil
weekly in high-cycle applications (>500,000 cycles/month). Avoid mounting
with cylinder axis >45° from horizontal without support.
Theoretical thrust @0.6MPa: Extending 7,363N (π×(125/2)²×0.6) Retracting 6,675N (accounts for rod area)
| Property | Property Value |
|---|---|
| sku | SI125X250H |
| Seal Material | FKM |
| 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.