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 SI40X240 Standard Cylinder Technical Specifications
- Model: SI40X240
- Bore size: Ø40mm
- Stroke: 240mm
- Operating pressure: 0.15–0.8 MPa (21.7–116 psi)
- Cushioning type: Adjustable rubber buffer (both ends)
- Mounting types: MF1/MF2 front flange, MB1/MB2 rear flange, MP2 pivot bracket
- Port size: M5x0.8 (G1/8 optional)
- Piston speed: 50–800 mm/s
- Ambient temperature: -20℃ to 80℃
- Seal material: NBR (nitrile) standard / PU optional
- Rod material: Chrome-plated carbon steel (S45C)
- Tube material: Anodized aluminum alloy
- Weight: 1.9kg (without accessories)
- Dimensions: 320mm(L) × 42mm(W) × 42mm(H) (extended length)
- Rod thread: M10x1.25 (male thread both ends)
- Max lateral load: 35N at 0.5MPa
- ISO standard: 6432 compliant
A high-precision ISO cylinder with optimized air consumption (3.5L/min at 0.5MPa). Features dual piston seals for leak-proof operation and chromium-plated rod with wiper ring for contamination resistance. Designed for 5,000km service life under standard conditions.
- Automated assembly line clamping mechanisms
- CNC machine tool door actuators
- Packaging machine pusher systems
- Plastic injection molding ejectors
- Printing press paper feed units
- Use misalignment prevention guides when lateral forces exceed 15N
- Apply light oil (ISO VG32) to air ports during installation
- Allow 2mm thermal expansion clearance in high-cycle applications
Maintenance cycle: Relubricate rod every 500,000 cycles using Class #2 lithium soap grease. Replace cushion seals after 2 million cycles in high-speed (500+ mm/s) applications.
| Property | Property Value |
|---|---|
| sku | SI40X240 |
| 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 | Non-magnetic |
| Bore Diameter | <40mm> |
| Stroke | 240mm |
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.









