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 SI40BX120S Standard Cylinder Specifications
- Model: SI40BX120S
- Type: ISO 6432 compliant double-acting cylinder
- Bore size: 40 mm
- Stroke: 120 mm (±1.5mm tolerance)
- Operating pressure: 0.15–0.9 MPa (21–130 psi)
- Temperature range: -20℃ to 80℃ (NBR seals)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: M5x0.8 (G1/8 optional)
- Mounting: Basic type (MF1) with 4xM5 threaded holes
- Piston rod material: Chrome-plated steel (∅12mm)
- Tube material: Anodized aluminum alloy
- Seal material: Nitrile rubber (NBR) standard
- Protection rating: IP65 (dust-tight & water jet resistant)
- Weight: 1.8 kg (including rod and accessories)
- Dimensions:
- Extended length: 298 mm (stroke+cylinder length)
- Retracted length: 178 mm
- Body diameter: 80 mm (hexagonal cross-section)
- Rod end thread: M12x1.25 (male)
A high-rigidity workhorse cylinder featuring dual adjustable air cushions and wear-resistant guide rings. The hexagonal body design enables easy wrench installation, while the hard chrome-plated rod withstands side loads up to 15% of maximum thrust. Compatible with auto switches for position feedback.
- Packaging machine clamping mechanisms
- CNC machine tool door actuators
- Conveyor gate control systems
- Automated assembly line positioning
- Printing press paper feed units
- Use locknuts with <2Nm torque for rod-end connections
- Align piston rod within 0.5° angular misalignment tolerance
- Lubricate with ISO VG32 hydraulic oil if non-lubricated air is used
- Install air filter regulator with ≤25μm filtration
| Property | Property Value |
|---|---|
| sku | SI40BX120S |
| 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 | SUS304 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| Stroke | 120mm |
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.









