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 SI40AX350S Standard Cylinder Specifications
- Model: SI40AX350S
- Bore size: 40 mm
- Stroke: 350 mm
- Operation type: Double-acting
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable air cushion (both ends)
- Port size: 1/4" NPT (G1/8 optional)
- Piston rod material: Chrome-plated carbon steel (HRS)
- Tube material: Anodized aluminum alloy
- Seal material: NBR + PU combination
- Ambient temperature: -20℃ to 80℃
- Lubrication: Pre-lubricated (Oil-free operation possible)
- Weight: 2.45 kg (with standard accessories)
- Dimensions:
- Extended length: 607 mm
- Retracted length: 257 mm
- Mounting face width: 54 mm
- Rod end thread: M12×1.25
- ISO standard: 6432 compliant
- Protection rating: IP40 (IP67 with optional wiper)
The SI40AX350S features a compact profile with heavy-duty construction, delivering 460N thrust at 0.6 MPa. Its dual adjustable cushioning minimizes end-impact noise (<65 dB) while maintaining 95% energy absorption efficiency. The corrosion-resistant anodized surface supports operation in humid environments. Optional magnetic piston version (SI40AX350S-M9) available for position sensing.
- Automated assembly line clamping mechanisms
- Plastic injection molding ejector systems
- CNC machine tool door actuators
- Automotive welding fixture positioning
- Packaging machine pusher assemblies
| Property | Property Value |
|---|---|
| sku | SI40AX350S |
| 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 | SUS420J2 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 350mm |
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.









