Airtac SEJ Adjustable Cylinder SEJ100X25-20S
2. Asymmetric bidirectional piston seal structure with compact dimensions and integrated oil reservoir function;
3. Rodless square aluminum tubing construction enhances corrosion resistance;
4. Adjustable cushioning mechanism ensures smooth stroke modulation;
5. Customizable configurations with multiple cylinder variants and mounting accessories;
6. High-temperature resistant sealing materials enable operational range of 0-150°C.
Category: Adjustable Cylinders | Brand: AirTAC | Series: SEJ
AirTAC SEJ Series Adjustable Stroke Cylinder SEJ100X25-20S Technical Specifications
- Model Identification: SEJ100X25-20S
- Cylinder Type: Double-acting with mechanical stroke adjustment
- Bore Size: Ø100mm ±0.2mm
- Stroke Length: 25mm (Adjustable range: 5-25mm)
- Operating Pressure: 0.05-1.0 MPa
- Piston Rod Thread: M20×1.5 external thread
- Cushion Adjustment: Front/rear independent needle valve control
- Port Size: G3/8 (ISO standard)
- Ambient Temperature: -20℃ to 80℃
- Piston Seal Material: Polyurethane (PU) with wear-resistant ring
- Rod Seal: HNBR with integrated wiper
- Body Material: Aluminum alloy (6063-T5) with hard anodized finish
- Weight: 3.8kg ±2% (excluding accessories)
- Dimensions: 195mm(L) × 122mm(W) × 122mm(H) (Max extended length)
- Mounting Type: Basic foot-mounted (20S indicates standard flange pattern)
- Lubrication Requirement: Oil mist lubrication recommended (ISO VG32)
Precision-engineered adjustable stroke cylinder featuring micro-positioning capability through its unique dual-cam stroke adjustment mechanism. The integrated shock absorption system reduces end-impact noise to below 75dB(A) at 0.5MPa. Includes corrosion-resistant coating for humid environments and optional magnetic piston for position sensing compatibility.
- Variable height positioning in automated assembly lines
- Pressure-sensitive clamping systems (e.g., CNC fixture control)
- Packaging machine stopper adjustment mechanisms
- Plastic injection molding ejector stroke control
- Precision web tensioning in printing machinery
Installation Guidance:
Maintain 0.5-1mm clearance between adjustment cam and stopper during initial setup.
Perform stroke calibration under 0.3MPa air pressure for optimal adjustment accuracy.
Requires monthly lubrication maintenance in high-cycle applications (>500,000 cycles/month).
| Property | Property Value |
|---|---|
| sku | SEJ100X25-20S |
| Adjustable Stroke | <20mm> |
| 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:-20-70°C Speed Range:30-800mm/s |
| Port Size | PT 1/2 |
| Magnet | S-Magnetic |
| Bore Diameter | 100mm |
| Stroke | <25 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.