Airtac SI40 Standard Cylinder SI40X305S
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 SI40X305S Standard Cylinder Specifications
- Model: SI40X305S
- Type: ISO 6432 compliant double-acting single piston rod cylinder
- Bore size: 40 mm (±0.1mm machining tolerance)
- Stroke: 305 mm (adjustable cushioning)
- Mounting style: Basic type (multiple mounting options available)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Operating pressure: 0.15–1.0 MPa (1.5–10 bar)
- Temperature range: -20℃ to 80℃ (dry air required below 0℃)
- Material:
- Tube: Aluminum alloy (hard anodized)
- Piston rod: Chrome-plated carbon steel (Cr-Mo)
- Seals: NBR (standard), optional FKM/Viton
- Port size: G1/8 (BSPP thread)
- Weight: 2.8 kg (without accessories)
- Dimensions:
- Extended length: 548 mm (stroke + cylinder body)
- Body diameter: 50 mm (outer tube)
- Rod diameter: 12 mm (hardened surface)
- Mounting hole spacing: 34 mm (standard pattern)
- Piston speed: 50–700 mm/s (optimal at 200–500 mm/s)
- Lubrication: Pre-lubricated (relubrication interval: 3,000 km stroke)
A high-precision industrial cylinder featuring corrosion-resistant construction and precision honed tube. The SI40X305S combines 3047N theoretical thrust force (at 0.7MPa) with smooth operation, achieved through optimized cushioning design. Includes built-in magnet for sensor attachment (optional non-magnetic version available).
- Automated assembly line positioning systems
- Packaging machinery clamp actuation
- CNC machine tool component ejection
- Material handling transfer units
- Plastic injection molding machine auxiliaries
Installation note:
Allow 20mm clearance for stroke overrun. Use M6 mounting screws (grade 8.8 or higher)
with anti-loosening agent. For vertical mounting, install rod-down orientation to
prevent particulate accumulation. Lubricate through air supply (ISO VG32 equivalent).
| Property | Property Value |
|---|---|
| sku | SI40X305S |
| 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 | 305mm |
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.