Airtac SEJ Adjustable Cylinder SEJ125X50-20S
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 SEJ125X50-20S Adjustable Cylinder Specifications
- Model: SEJ125X50-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 125mm
- Stroke: 50mm (adjustable through stopper mechanism)
- Operating pressure: 0.05–0.8 MPa
- Cushioning type: Adjustable rubber buffer
- Mounting style: Standard MF1 front flange with foot mounting base
- Port size: G3/8 (NPT1/2 optional)
- Rod material: Chrome-plated steel (Cr-Mo)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (Nitrile Butadiene Rubber)
- Temperature range: -20℃ to 80℃
- Weight: ~5.8kg (without accessories)
- Dimensions:
- Total length (retracted): 268mm
- Body diameter: 136mm
- Rod end thread: M20×1.5
- Mounting hole spacing: 155×125mm
High-precision industrial cylinder featuring external stroke adjustment capability through rotating stoppers. The dual chrome-plated piston rod and triple sealing system ensure leak-proof operation in high-cycle applications. Integrated magnet slots (T-slot design) allow easy sensor mounting for position feedback.
- Automated production line material positioning
- Press machine ejection systems
- Plastic injection molding clamp adjustment
- Heavy-duty conveyor gate control
- Packaging machine stroke customization
Installation note:
Requires periodic lubrication (ISO VG32 hydraulic oil recommended).
For vertical mounting, install locking nuts on adjustment bolts.
Adjust cushioning gradually while pressurized for optimal deceleration.
| Property | Property Value |
|---|---|
| sku | SEJ125X50-20S |
| 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°C to 70°C Speed Range: 30 to 500 mm/s |
| Port Size | PT 1/2 |
| Magnet | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | <50mm> |
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.