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 SI40BX300S Standard Cylinder Specifications
- Model: SI40BX300S
- Type: ISO 15552 compliant double-acting cylinder
- Bore size: 40mm
- Stroke: 300mm (±1.5mm tolerance)
- Operating pressure: 0.1-0.9 MPa (1-9 bar)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: 1/4" NPT (G1/8 optional)
- Piston rod material: SUS304 stainless steel (chrome-plated)
- Tube material: Aluminum alloy (hard anodized)
- Seal material: NBR (nitrile) standard / PU optional
- Temperature range: -20℃ to +80℃
- Piston speed: 50-800 mm/s
- Max lateral load: 15N at 0.1MPa
- Weight: 2.46kg (without accessories)
- Dimensions: 516mm(L) × 50mm(W) × 50mm(H) (retracted length)
- Mounting: Front flange (ISO 15552-F1) with 4×M5 threaded holes
- Rod end: M16×1.5 male thread
- Protection rating: IP65 (standard wipers)
High-precision industrial cylinder with corrosion-resistant construction, featuring twin piston seals for leak-free operation. The magnetic piston version (SI40M...) enables position sensing compatibility. Optimized for high cycle rates with wear-resistant guide bands and precision honed tube.
- Automated assembly line clamping mechanisms
- Plastic injection molding ejector systems
- CNC machine tool part positioning
- Automotive welding fixture actuation
- Packaging machine product pushing/stops
- Align cylinder axis within ±0.5° to prevent side load
- Use flexible couplings for rod-end connections
- Lubricate with ISO VG32 hydraulic oil if non-lube version
- Allow 100mm free space for rod extension
5,000km travel distance (NBR seals) or 8,000km (PU seals) under standard conditions (0.5MPa, 25℃, clean air). Reduce life expectancy by 30% for vertical mounting.
| Property | Property Value |
|---|---|
| sku | SI40BX300S |
| 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 | 300mm |
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.









