Airtac SEJ Adjustable Cylinder SEJ125X80-40S
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 SEJ125X80-40S Adjustable Cylinder Specifications
- Model: SEJ125X80-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø125mm (±0.5mm tolerance)
- Stroke: 80mm (adjustable within 0-80mm range)
- Rod diameter: Ø40mm (chrome-plated steel)
- Operating pressure: 0.05-1.0 MPa
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: Basic type (no built-in mount)
- Port size: G1/2 (BSPP thread)
- Ambient temperature: -20℃ to 80℃
- Seal material: NBR + PU combination
- Weight: ~15.8kg (without accessories)
- Dimensions:
- Extended length: 398mm
- Retracted length: 318mm
- Body width: 158mm (with cushion locks)
- Height: 148mm (including rod end)
- ISO standard: 15552 compliant
- Protection rating: IP54 (standard seals)
Heavy-duty adjustable stroke cylinder with precision positioning capability, featuring dual-axis mechanical locks for stroke adjustment. The enhanced rod bearing design supports 20% higher side loads compared to standard series. Requires ISO VG32 or equivalent hydraulic oil lubrication for optimal performance.
- Die casting machine ejection systems
- Automotive welding fixture positioning
- Paper roll clamping in printing presses
- Plastic injection molding machine gates
- Heavy conveyor stop mechanisms
Installation note:
Maximum allowable misalignment: ±0.5°. Use locknuts with 45-50 N·m torque value.
For vertical mounting, install exhaust mist lubricator (AM400 series recommended).
| Property | Property Value |
|---|---|
| sku | SEJ125X80-40S |
| Adjustable Stroke | <40mm> |
| 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 | 80 mm |
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.