Airtac SI40 Standard Cylinder SI40X250SN
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 SI40X250SN Standard Cylinder Specifications
- Model: SI40X250SN
- Type: ISO 6432 compliant double-acting pneumatic cylinder
- Bore size: 40 mm
- Stroke: 250 mm
- Operating pressure: 0.15–1.0 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic type (other options available: FA/FC/MF/MP)
- Port size: 1/4 NPT (M5×0.8 optional)
- Operating temperature: -20℃ to 80℃
- Cylinder material: Aluminum alloy barrel (hard anodized)
- Piston rod material: Chrome-plated carbon steel (S45C)
- Seal material: NBR (nitrile rubber) standard
- Weight: 2.3 kg (without accessories)
- Dimensions:
- Total length: 342 mm (stroke + end caps)
- Body diameter: Φ40 mm ±0.5
- Mounting base: 25mm × 40mm (W×D)
- Rod end thread: M10×1.25 (external)
- Max theoretical thrust: 125.6 N @ 0.6 MPa
- Speed range: 50–800 mm/s (with cushion adjustment)
- Protection rating: IP65 (rod seal)
A high-precision industrial cylinder featuring wear-resistant construction and precise stroke control. The chrome-plated rod and multi-layered sealing system ensure low friction and extended service life. Designed for repetitive motion applications requiring medium load capacity and position stability. Includes built-in magnetic piston for position sensing compatibility.
- Carton sealing/packaging machinery pushers
- CNC machine tool clamping systems
- Automated conveyor gate actuators
- Plastic injection molding ejectors
- Automotive assembly line positioning
Installation note:
Lubricate rod with ISO VG32 hydraulic oil before initial operation.
Maintain 0.5–1mm clearance between magnetic sensor and cylinder body.
Avoid side loads exceeding 30N for optimal seal performance.
| Pressure (MPa) | 0.3 | 0.5 | 0.7 | 1.0 |
|---|---|---|---|---|
| Thrust (N) | 62.8 | 104.7 | 146.6 | 209.4 |
| Property | Property Value |
|---|---|
| sku | SI40X250SN |
| Seal Material | NBR |
| 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.