Airtac SI40 Standard Cylinder SI40X250S
2. Features wear-resistant Y-shaped axial sealing structure with cushioning function, extended service life, and low friction resistance;
3. Aluminum square tube profile with anodized tie rods for superior corrosion resistance;
4. Built-in adjustable pneumatic cushioning at both ends;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AirTAC | Series: SI40
AirTAC SI40X250S Standard Cylinder Specifications
- Model: SI40X250S
- Bore size: 40mm (ISO 6432 standard)
- Stroke: 250mm (±0.5mm tolerance)
- Operation type: Double-acting
- Operating pressure: 0.05–0.9 MPa
- Cushion type: Adjustable cushion (both ends)
- Mounting style: Basic type (MF1), optional foot/axial/flange mounts
- Piston rod material: Chrome-plated SUS304 stainless steel
- Cylinder tube: Hard anodized aluminum alloy
- End cover: Extruded aluminum with corrosion-resistant coating
- Operating temperature: -20℃ to 80℃
- Seal material: NBR (Nitrile Butadiene Rubber)
- Port size: G1/8 (M5×0.8 optional)
- Theoretical thrust: 510N at 0.5MPa (extend), 453N (retract)
- Weight: 2.46kg (without accessories)
- Dimensions:
- Total length (L): 450mm (min. 200mm + stroke)
- Body diameter: 40mm ±0.1mm
- Mounting hole spacing: 32mm (vertical) × 18mm (horizontal)
- Rod thread: M16×1.5
High-precision industrial cylinder featuring dual adjustable pneumatic cushions and precision honed inner tube surface (Ra≤0.2μm). The hardcoat anodized barrel provides exceptional wear resistance, while the triple-lip rod seal ensures minimal leakage (≤5cm³/min). Designed for ISO 8573-1:2010 air quality standards with 5μm filtration recommendation.
- Automated assembly line clamping mechanisms
- Plastic injection molding ejector systems
- CNC machine tool workpiece positioning
- Packaging machinery linear actuation
- Automotive welding fixture drives
Installation guidelines:
Lubricate with ISO VG32 hydraulic oil before initial use.
Maintain ≤0.3mm/m alignment tolerance during mounting.
For vertical installations, use rod-down orientation to prevent condensate ingress.
| Property | Property Value |
|---|---|
| sku | SI40X250S |
| 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℃ to 80℃ Speed Range: 30-800 mm/s |
| Port Size | PT1/4 |
| Piston Rod Material | Medium Carbon Steel |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| 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.