Airtac SI40 Standard Cylinder SI40X285S
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 SI40X285S Standard Cylinder Technical Specifications
- Model: SI40X285S
- Bore Size: 40mm (ISO 6431 standard)
- Stroke: 285mm (±1mm tolerance)
- Structure: Double-acting cylinder
- Mounting Types: Basic type (MF1), Front flange (MP2), Rear flange (MP4), Foot mounting (MA1)
- Operating Pressure: 0.1-0.9 MPa (145-130 psi)
- Ambient Temperature: -20℃ to 80℃ (-4°F to 176°F)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Piston Speed: 50-800 mm/s (with cushion adjustment)
- Seal Material: NBR (Nitrile rubber) standard / Optional FKM for high temp
- Rod Thread: M16×1.5 (ISO 12240-1)
- Port Size: G1/8 (ISO 1179)
- Weight: 2.5kg (5.5 lbs) ±3%
- Dimensions:
- Total Length: 455mm (17.91")
- Body Diameter: 40mm (1.57")
- Mounting Base: 32mm×32mm (1.26"×1.26")
- Rod Extension Length: 285mm + 40mm (cushion zone)
- ISO Certification: Compliant with ISO 6431, VDMA 24562
The SI40X285S features chromium-plated piston rod (HRC 45-50 hardness) with integrated wear-resistant guide bands. Its optimized flow path design achieves 95%+ volumetric efficiency. The anti-rotation mechanism ensures precise linear motion, with ≤0.5mm lateral play at full extension. Includes magnetic piston for position sensing compatibility.
- Automated material handling systems (conveyor pushers)
- Plastic injection molding machine ejectors
- Automotive assembly line clamping fixtures
- Packaging machine lid press mechanisms
- Textile machinery tension control systems
Installation Best Practices:
- Align cylinder axis within 0.2mm perpendicularity tolerance
- Use M6 mounting screws with 4.8 grade minimum (torque 5.5 N·m)
- Install 5μm filter regulator lubricator (FRL) unit upstream
- For vertical mounting: Add mechanical brake for load holding
Maintenance Cycle: Relubricate every 2,000km of cumulative stroke movement or annually. Replace cushion seals every 500,000 cycles in high-speed applications (>500mm/s).
| Property | Property Value |
|---|---|
| sku | SI40X285S |
| 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 | 285mm |
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.