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 SI40X145S Standard Cylinder Specifications
- Model: SI40X145S
- Type: ISO 6432 compliant double-acting cylinder
- Bore size: 40 mm
- Stroke length: 145 mm (±1.5mm tolerance)
- Operating pressure: 0.05–0.9 MPa
- Cushioning type: Adjustable rubber buffer (both ends)
- Port size: M5×0.8 (G1/8 optional)
- Piston rod material: SUS304 stainless steel
- Rod diameter: 12 mm
- Seal material: NBR (Nitrile rubber)
- Temperature range: -20℃ to 80℃
- Weight: 2.35 kg (with standard accessories)
- Dimensions: 245mm(L) × 40mm(Bore) × 82mm(Mounting height)
- Mounting types: Basic (no mount), MF (front flange), MB (rear flange), MP (axial foot)
- Max theoretical thrust: 1,130N @0.7MPa
- Lubrication: Pre-lubricated (Grease-free operation available)
- ISO standard: 6432 (8mm~25mm), VDMA 24562 (32mm~100mm)
The SI40X145S features a hard-anodized aluminum tube with chrome-plated piston rod, designed for precision linear motion in industrial automation. Its compact design incorporates an anti-rotation guide slot (standard on 40mm+ bore sizes) and dual magnetic sensor grooves for position feedback. The cylinder operates at speeds up to 1,000 mm/s with proper cushioning adjustment.
- Automated assembly line clamping mechanisms
- CNC machine tool door actuators
- Food processing equipment (NBR seals compatible with food-grade lubricants)
- Palletizing robot end-effector positioning
- Plastic injection molding ejector systems
| Property | Property Value |
|---|---|
| sku | SI40X145S |
| 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 | 145mm |
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.









