Airtac SEJ Adjustable Cylinder SEJ125X80-20S
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 SEJ125X80-20S Adjustable Cylinder Specifications
- Model: SEJ125X80-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 125mm
- Stroke: 80mm (Standard) ±10mm adjustable range
- Adjustment mechanism: External threaded rod with locknut
- Mounting style: Front/rear flange (MF1/MF2) or foot mounting (optional)
- Operating pressure: 0.05–1.0 MPa
- Cushioning: Adjustable pneumatic cushion at both ends
- Temperature range: -20℃ to 80℃
- Port size: G1/2 (BSPP thread)
- Rod end types: Male thread M60×2 (ISO standard)
- Piston material: Aluminum alloy with hard anodizing
- Seal material: NBR (nitrile rubber)
- Weight: ~16.8kg (without accessories)
- Dimensions:
- Extended length: 345mm (min: 285mm, max: 305mm with adjustment)
- Body diameter: 125mm
- Mounting base width: 150mm
Heavy-duty adjustable stroke cylinder featuring dual external adjustment screws for precise stroke control (±10mm). The hardened piston rod and corrosion-resistant construction enable reliable operation in harsh environments. Integrated cushioning valves allow smooth deceleration adjustment, reducing end-impact noise below 75dB(A). Requires ISO VG32 hydraulic oil lubrication for optimal seal performance.
- Variable position clamping in automotive welding fixtures
- Press machine stroke adjustment systems
- Elevator door positioning mechanisms
- Plastic injection molding ejector control
- Agricultural equipment with variable height requirements
Installation note:
Always engage at least 6 full threads during stroke adjustment and torque locknuts to 45-50N·m.
Maintain 0.5mm minimum clearance between adjustment screws and mechanical stops.
| Property | Property Value |
|---|---|
| sku | SEJ125X80-20S |
| 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 | 80 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.