Airtac SEJ Adjustable Cylinder SEJ125X250-20S
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 SEJ125X250-20S Adjustable Cylinder Specifications
- Model: SEJ125X250-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 125mm
- Stroke: 250mm (maximum)
- Adjustment range: 0-20mm (external screw adjustment)
- Operating pressure: 0.05-1.0 MPa
- Cushion type: Adjustable rubber cushion (both ends)
- Port size: G3/8
- Mounting style: Basic type (MF1)
- Piston rod material: SCM435 chrome-plated steel
- Tube material: Aluminum alloy (anodized)
- Seal material: NBR + PU combination
- Temperature range: -10℃ to 80℃
- Weight: 4.8kg (excluding accessories)
- Dimensions: 250mm(L) × 125mm(W) × 125mm(H)
- Rod end type: Female thread M30×1.5
- Maximum speed: 500mm/s
- ISO standard: 15552 compliant
High-precision adjustable stroke cylinder with external stroke adjustment mechanism, featuring dual anti-rotation design for stable operation. The hexagonal piston rod prevents rotation during stroke adjustment. Optimized for applications requiring variable positioning accuracy (±0.5mm repeatability). Requires 5-40μm filtered lubricated air.
- Variable height positioning in assembly lines
- Clamping force adjustment in welding fixtures
- Material handling with variable stacking heights
- Press machine depth control systems
- Automotive part testing equipment
Installation note:
Lock adjustment screws after positioning. Apply M3 mounting bolts with 12.5N·m torque.
Maintain 0.5-1mm gap between stopper and cylinder head during adjustment.
Not recommended for side load applications exceeding 50N.
| Property | Property Value |
|---|---|
| sku | SEJ125X250-20S |
| 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 | <250MM> → <250mm> |
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.