Airtac SEJ Adjustable Cylinder SEJ125X800-20S
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 SEJ125X800-20S Adjustable Cylinder Specifications
- Model: SEJ125X800-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø125mm
- Stroke length: 800mm (adjustable range: ±20mm)
- Operating pressure: 0.05–1.0 MPa
- Port thread: Rc1" (G1" optional)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Fixed type MF1 (front flange)
- Rod end type: External thread M64×3
- Seal material: NBR + PU combination
- Ambient temperature: -10℃ to 80℃
- Piston speed: 50–800 mm/s
- Weight: 38.6 kg (without accessories)
- Dimensions:
- Extended length: 1,382mm
- Retracted length: 582mm
- Body diameter: 145mm
- Mounting flange: 230×230mm
- Protection class: IP54 (standard)
Heavy-duty adjustable stroke cylinder with precision position locking mechanism. Features triple chrome-plated piston rod and wear-resistant aluminum alloy barrel. The 20mm stroke adjustment range is controlled via external micrometer-style collars with position lock nuts. Includes magnetic piston for sensor compatibility.
- Press machine stroke adjustment systems
- Automotive welding fixture positioning
- Die casting machine ejection control
- Large-scale packaging equipment pressure regulation
- Plastic injection molding machine core pulling
Installation note:
Requires minimum 1.5x bore diameter clearance around cylinder body.
Lubricate with ISO VG32 hydraulic oil before initial operation.
Stroke adjustment must be performed with depressurized system.
| Property | Property Value |
|---|---|
| sku | SEJ125X800-20S |
| 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 | 800mm |
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.