Airtac SI40 Standard Cylinder SI40BX250
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 SI40BX250 Standard Cylinder Specifications
- Model: SI40BX250
- Bore size: 40mm
- Stroke: 250mm
- Operating pressure: 0.15–1.0 MPa
- Operating medium: Clean air (Lubricated or non-lubricated)
- Ambient temperature: -20℃ to 80℃
- Cushioning: Adjustable air cushion (both ends)
- Mounting type: Basic type (Standard) with optional accessories for foot/mounting flange/swing
- Port size: G1/8 (M5×0.8 optional)
- Piston speed: 50–700 mm/s
- Seal material: NBR (Nitrile rubber)
- Weight: 2.75 kg ±3%
- Dimensions (L×W×H): 368mm × 40mm × 40mm (Cylinder body: 40×40mm, Extended length with rod: 368mm)
- Rod thread: M16×1.5
- Protection rating: IP65 (Dust-tight & protected against water jets)
A high-rigidity ISO cylinder with chromium-plated piston rod and precision honed tube. Features dual-piston seals for leak prevention and magnetic sensor slots for position detection (sensors sold separately). Optimized for heavy cyclic duty with ≥2,000km service life under standard conditions.
- Automated assembly line clamping/pressing
- Plastic injection molding ejectors
- CNC machine tool positioning systems
- Automotive welding fixture actuators
- Packaging machinery stopper controls
Installation note:
Lubricate through air ports using ISO VG32 hydraulic oil if non-lubricated air is used.
Adjust cushion screws to 1/4 turn from fully closed position before fine-tuning.
Allow 5mm clearance around cylinder for heat dissipation during continuous operation.
| Property | Property Value |
|---|---|
| sku | SI40BX250 |
| 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 | 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.