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 Adjustable Cylinder SEJ80X100-20 Technical Specifications
- Model: SEJ80X100-20
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø80 mm
- Stroke: 100 mm (adjustable)
- Operating pressure: 0.1-0.9 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting type: Basic model with 20mm center hole spacing (ISO 15552 standard)
- Rod end thread: M20×1.5
- Port size: G1/4 (standard) / NPT1/4 (optional)
- Material: Aluminum alloy barrel, chrome-plated piston rod
- Seal material: Nitrile rubber (NBR) / Optional polyurethane (PU)
- Temperature range: -20℃ to +80℃
- Weight: 3.8 kg ±2%
- Dimensions (L×W×H): 298mm × 105mm × 105mm (full extension)
- Repeat positioning accuracy: ±0.5 mm
- Max piston speed: 500 mm/s
- Protection class: IP54 (standard) / IP67 (optional)
High-precision adjustable stroke cylinder featuring dual micro-adjustment mechanisms (hex wrench included). The SEJ series combines position memory capability with dual cushion control, allowing mid-stroke positioning through external mechanical stoppers. The anodized barrel surface resists chemical corrosion in harsh environments.
- Variable height positioning in automated assembly lines
- Pressure-sensitive clamping systems (electronics manufacturing)
- Material handling with adjustable stroke requirements
- Packaging machinery with product size variations
- Plastic injection molding ejection systems

Property | Property Value |
---|---|
sku | SEJ80X100-20 |
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 | PT3/8 |
Magnet | Non-magnetic |
Bore Diameter | 80 mm |
Stroke | 100mm |
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.