Airtac SEJ Adjustable Cylinder SEJ125X30-20S
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 SEJ125X30-20S Adjustable Stroke Cylinder Specifications
- Model: SEJ125X30-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 125mm
- Stroke: 30mm (adjustable via mechanical stopper)
- Operating pressure: 0.05–1.0 MPa
- Temperature range: -20℃ to 80℃
- Port size: G1/2 (NPT1/2 optional)
- Cushion type: Rubber buffer + adjustable damping
- Mounting style: Basic type (MF1)
- Rod end type: Male thread M30×1.5
- Seal material: NBR (nitrile butadiene rubber)
- Weight: 6.8kg (without accessories)
- Dimensions: 330mm(L) × 156mm(W) × 156mm(H)
- Rod diameter: 40mm
- Max theoretical thrust: 15,600N @0.63MPa
- ISO standard: ISO 15552 (VDMA 24562)
High-precision industrial cylinder featuring micrometer-grade stroke adjustment through its external mechanical stopper mechanism. The dual-cushion design with adjustable damping ensures smooth end-of-stroke deceleration. Heavy-duty construction with chrome-plated piston rod resists corrosion in harsh environments.
- Press fit assembly with variable component heights
- Palletizing robot end-effector positioning
- Die casting machine ejection systems
- Paper converting equipment with variable web tension
- Automotive welding fixture height adjustment
Installation note:
For precise stroke adjustment, use dial indicator during stopper setting.
Lubricate with ISO VG32 hydraulic oil. Avoid side load exceeding 50N.
Maximum allowable lateral play: ±1.2mm.
| Property | Property Value |
|---|---|
| sku | SEJ125X30-20S |
| 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 | 30mm |
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.