Airtac SEJ Adjustable Cylinder SEJ63X25-20
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 SEJ63X25-20 Adjustable Cylinder Specifications
- Model: SEJ63X25-20
- Type: Double-acting adjustable stroke cylinder
- Bore size: 63mm
- Stroke: 25mm (adjustable through built-in stopper)
- Mounting style: MF2 (basic front flange)
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Port size: M5x0.8 (standard) / NPT1/8 optional
- Piston rod thread: M12x1.25
- Temperature range: -10℃ to 80℃
- Material: Aluminum alloy barrel, chrome-plated steel rod
- Seal type: NBR seals (standard) / optional PU seals
- Protection rating: IP54 (standard wiper)
- Weight: 1.45kg ±2%
- Dimensions: 160mm(L) × 75mm(W) × 75mm(H)
Precision-engineered adjustable stroke cylinder featuring micro-positioning capability (±0.5mm repeatability). The double-rod design enables precise end position adjustment through mechanical stoppers. Anodized barrel surface resists corrosion in humid environments, while the magnetic piston version (add "-M" suffix) supports position feedback.
- Precision press-fit operations in electronic assembly
- Variable height positioning in conveyor systems
- Clamping force adjustment in CNC fixture setups
- Packaging machine stroke calibration
- Automated door stroke limitation
Installation note:
Lubricate with ISO VG32 hydraulic oil before initial use.
Avoid side load exceeding 15% of maximum thrust.
For adjustable stopper operation: Loosen lock nut → Set position → Tighten to 3.5N·m torque.
| Property | Property Value |
|---|---|
| sku | SEJ63X25-20 |
| 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 | 63mm |
| 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.