Airtac SEJ Adjustable Cylinder SEJ125X80-30
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 SEJ125X80-30 Adjustable Cylinder Specifications
- Model: SEJ125X80-30
- Type: Double-acting adjustable stroke cylinder with mechanical lock
- Bore size: 125mm
- Stroke: 80mm (±0.5mm adjustment range)
- Operating pressure: 0.1–0.9 MPa
- Cushioning type: Adjustable hydraulic buffer (both ends)
- Mounting style: Standard MF1/MF2 flange pattern
- Port size: G1/2 (BSPP thread)
- Temperature range: -20℃ to 80℃
- Material: Aluminum alloy barrel, chrome-plated piston rod (SUS304)
- Seals: NBR (standard), optional Viton available
- Weight: 4.8kg (excluding accessories)
- Dimensions: 285mm(L) × 145mm(W) × 145mm(H) (fully retracted)
- Rod end thread: M20×1.5 (male)
- Max theoretical output: 1,103N @ 0.63MPa
- ISO standard: 15552 compliant
Heavy-duty adjustable cylinder featuring dual-cushion control with 30° adjustable buffers, designed for precision positioning in high-cycle applications. The hexagonal barrel design enables easy wrench adjustments during installation. Includes built-in magnet for position sensing compatibility.
- Die-cutting machine stroke control
- Automotive assembly line clamping fixtures
- Glass panel handling systems
- Press brake tool positioning
- Plastic injection molding ejectors
Operational guidance:
Always lubricate with ISO VG32 hydraulic oil before initial use.
Avoid side loads exceeding 15% of maximum thrust. For vertical installations,
use counterbalance valves. Recommended maintenance interval: 2 million cycles
or 12 months (whichever comes first).
- Loosen lock nut (M12) using 19mm wrench
- Rotate buffer screw clockwise to decrease stroke
- Fine-tune in 5° increments (1mm stroke change per rotation)
- Re-torque lock nut to 25±3 N·m
| Property | Property Value |
|---|---|
| sku | SEJ125X80-30 |
| Adjustable Stroke | 30mm |
| 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 | Non-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.