Airtac SI40 Standard Cylinder SI40X990S
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 SI40X990S Standard Cylinder Specifications
- Model: SI40X990S
- Series: SI Standard Cylinder
- Bore size: 40mm
- Stroke: 990mm (customizable 25-1000mm)
- Operating pressure: 0.05-1.0 MPa
- Piston speed: 50-800 mm/s
- Port size: M5x0.8 (1/8" NPT optional)
- Cushioning: Adjustable air cushion (both ends)
- Material: Aluminum alloy barrel, chrome-plated piston rod
- Seal material: NBR (Nitrile rubber)
- Ambient temperature: -20℃ to 80℃
- Weight: 2.8kg (without accessories)
- Dimensions: 1090mm(L) × 48mm(W) × 48mm(H)
- Rod thread: M10x1.25 (male thread both ends)
- Mounting options: Basic type (no pre-mounting accessories)
- ISO standard: 6432 compliant
High-precision industrial cylinder designed for long-stroke heavy-duty applications. Features double-acting operation with corrosion-resistant construction and precision honed inner tube. The chrome-plated piston rod (hardness HRC 45+) withstands side loads, while the multi-lip seal design ensures ≤0.5mm/s leakage rate at 0.5MPa.
- Plastic injection molding machine ejectors
- Automated warehouse vertical lift systems
- Automotive assembly line positioning devices
- Large-format CNC machine tool clamping
- Industrial curtain wall installation systems
Installation guidelines:
Support rod at every 500mm interval for full extension stability.
Use C-shaped mounting brackets (sold separately) for horizontal applications.
Lubricate with ISO VG32 hydraulic oil if operating below 0.3 MPa.
| Property | Property Value |
|---|---|
| sku | SI40X990S |
| 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 | 990 mm |
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.