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 SEJ Adjustable Cylinder SEJ63X125-75 Technical Specifications
- Model: SEJ63X125-75
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø63mm (ISO 6432 standard)
- Stroke: 125mm (adjustable through mechanical stops)
- Operating pressure: 0.1–1.0 MPa
- Cushioning: Adjustable pneumatic cushion at both ends
- Mounting style: Basic rear clevis (optional flange/bracket kits available)
- Port size: G1/8 (NPT1/4 optional)
- Piston rod material: Hard chrome-plated carbon steel
- Tube material: Anodized aluminum alloy
- Seal type: NBR seals with wear-resistant guide rings
- Temperature range: -20℃ to 80℃ (dry air required below 0℃)
- Weight: 2.5kg ±5% (excluding accessories)
- Dimensions: 63mm(Bore) × 125mm(Stroke), Overall: 300mm(L) × 80mm(W) × 80mm(H)
- Lubrication: Pre-lubricated (recommended ISO VG32 turbine oil)
High-precision adjustable stroke cylinder featuring dual-side position sensing slots (magnet optional) and anti-rotation mechanism. The tapered cushion design reduces end-impact noise to below 75dB. Corrosion-resistant construction with IP54 protection rating makes it suitable for harsh environments.
- Packaging line product positioning systems
- Automated welding fixture height adjustment
- CNC machine tool clamping mechanisms
- Solar panel tilt angle adjustment rigs
- Automotive assembly line lifting platforms

Property | Property Value |
---|---|
sku | SEJ63X125-75 |
Adjustable Stroke | 75mm |
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:-20-70°C Speed Range:30-800mm/s |
Port Size | PT3/8 |
Magnet | Non-magnetic |
Bore Diameter | 63mm |
Stroke | 125mm |
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.