Airtac SEJ Adjustable Cylinder SEJ125X50-30SN
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 SEJ125X50-30SN Adjustable Cylinder Specifications
- Model: SEJ125X50-30SN
- Type: Double-acting adjustable cushioning cylinder
- Bore size: Ø125mm
- Stroke: 50mm (adjustable)
- Cushioning type: External adjustable rubber + air buffer
- Operating pressure: 0.05–1.0 MPa
- Temperature range: -20℃ to 80℃
- Port size: G1/2 (ISO228 standard)
- Piston rod material: Chrome-plated carbon steel (JIS S45C)
- Tube material: Aluminum alloy (hard anodized)
- Seal material: NBR (nitrile rubber)
- Weight: 6.8kg ±2%
- Dimensions: 232mm(L) × 140mm(W) × 140mm(H)
- Mounting style: Basic type (MF1) with front flange
- Protection rating: IP54 (standard wiper design)
- Piston speed: 50–750 mm/s (optimal range)
High-precision industrial cylinder featuring dual adjustable cushions for precise end-position control. The hexagonal cushion locknuts enable field adjustments without disassembly. Hard-anodized barrel resists abrasive wear in dusty environments. Includes built-in magnet for position sensing compatibility.
- Die-casting machine ejection systems
- Automated palletizing equipment
- Injection molding machine core pulls
- Heavy-duty clamping fixtures
- Steel mill conveyor gate controls
Installation tip:
Adjust cushion screws clockwise to increase damping force (1/4 turn increments recommended).
Lubricate with ISO VG32 hydraulic oil if operating below 0.3 MPa.
| Property | Property Value |
|---|---|
| sku | SEJ125X50-30SN |
| Adjustable Stroke | 30mm |
| Seal Material | NBR |
| 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.