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 SI40X390S Standard Cylinder Technical Specifications
- Model: SI40X390S
- Bore size: 40mm (ISO 6432 standard)
- Stroke: 390mm (±1mm tolerance)
- Operation type: Double-acting
- Working pressure: 0.05–0.9 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: M5x0.8 (G1/8 optional)
- Piston rod material: Chrome-plated steel (SUS304 equivalent)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (nitrile rubber)
- Ambient temperature: -20℃ to +80℃
- Weight: 3.2kg (without accessories)
- Dimensions: 588mm(L) × 50mm(W) × 50mm(H) (extended length)
- Rod thread: M10x1.25 (male thread both ends)
- Mounting options: Basic type (accessory mounting required)
- Protection class: IP65 (with wiper seal)
- Lubrication: Pre-lubricated (Use ISO VG32 pneumatic oil)
High-precision industrial cylinder featuring wear-resistant chromium plating and dual anti-rotation design. The T-slot mounting surface (ISO 15552 compliant) allows flexible installation configurations. Optimized for long-stroke applications with minimal internal leakage (≤5cm³/min at 0.5MPa). Includes magnetic sensor slots for position feedback compatibility.
- Automated assembly line material handling
- Plastic injection molding ejector systems
- Paper processing equipment actuators
- Automotive welding fixture positioning
- Food packaging machine pusher mechanisms
| Property | Property Value |
|---|---|
| sku | SI40X390S |
| 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 | 390mm |
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.









