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 SEJ125X400-100S Adjustable Cylinder Specifications
- Model: SEJ125X400-100S
- Type: Double-rod adjustable stroke cylinder
- Bore size: Ø125mm
- Stroke: 400mm (adjustable)
- Adjustment range: ±50mm (total 100mm stroke adjustment)
- Operating pressure: 0.05-1.0 MPa
- Piston speed: 50-1000 mm/s
- Cushioning: Adjustable hydraulic shock absorber
- Port size: Rc1/2 (G1/2 optional)
- Rod diameter: Ø35mm (chromed steel)
- Tube material: Aluminum alloy (hard anodized)
- Seal material: NBR + PU combination
- Temperature range: -20℃ to 80℃
- Weight: 12.5kg ±5% (excluding accessories)
- Dimensions: 650mm(L) × 155mm(W) × 155mm(H)
- Mounting: Front flange (ISO 15552 standard)
- Protection rating: IP67 (wipers included)
Heavy-duty adjustable stroke cylinder with precision positioning capability, featuring dual hardened piston rods for enhanced lateral load capacity. The integrated hydraulic cushioning system allows 3-stage adjustment via external screws (1. Pre-acceleration 2. Main braking 3. Final damping). Includes magnetic piston for position sensing compatibility.
- Die casting machine ejection systems
- Automotive welding fixture positioning
- Sheet metal bending equipment
- Palletizing robot end-effectors
- Injection molding machine core pulls

Property | Property Value |
---|---|
sku | SEJ125X400-100S |
Adjustable Stroke | 100mm |
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 | <400mm> |
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.