Airtac SI40 Standard Cylinder SI40X250
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 SI40X250 Standard Cylinder Specifications
- Model: SI40X250
- Bore size: Ø40 mm
- Stroke: 250 mm
- Operating pressure: 0.05-1.0 MPa
- Medium: Clean air (ISO8573-1:2010 Class 3.4.2)
- Ambient temperature: -20℃ to 80℃
- Cushioning type: Adjustable rubber buffer (both ends)
- Piston speed: 50-750 mm/s
- Mounting types: Basic (MF1), Front flange (MF2), Rear flange (MF3), Foot mounted (MF4)
- Port size: G1/8 (Rc1/8 optional)
- Rod end thread: M16×1.5
- Weight: 1.34 kg ±2%
- Dimensions:
- Extended length: 343 mm
- Retracted length: 93 mm
- Body diameter: 52 mm
- Mounting hole spacing: 50×50 mm (MF2/MF3)
- Material:
- Tube: Aluminum alloy (hard anodized)
- Piston rod: Chrome-plated steel (Cr equivalent ≥0.8μm)
- Seals: NBR (standard), optional Viton
High-precision ISO 15552 compliant cylinder with enhanced side load capacity (max 30% increase vs previous models). Features wear-resistant guide bushings and triple lip seals for maintenance-free operation up to 3,000 km travel distance. Includes magnetic piston for sensor compatibility (SI-M40 variant available with built-in magnet).
- Automated assembly line positioning systems
- Plastic injection molding machine ejectors
- CNC machine tool clamping mechanisms
- Automotive welding fixture actuation
- Food processing conveyor gate controls
Installation note:
Lubricate with ISO VG32 hydraulic oil before initial use.
Maintain 0.3-1.0 MPa operating pressure for optimal seal performance.
Allow 5mm minimum clearance around cylinder body for heat dissipation.
- Thrust force: 75.4 kgf
- Return force: 68.2 kgf
- Max lateral load: 55 N at full extension
| Property | Property Value |
|---|---|
| sku | SI40X250 |
| 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 | <250MM> → <250mm> |
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.