Airtac SEJ Adjustable Cylinder SEJ80X125-20S
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 SEJ Adjustable Cylinder SEJ80X125-20S Technical Details
- Model Code: SEJ80X125-20S
- Bore Size: 80mm (ISO 6432 standard)
- Stroke: 125mm (±0.5mm tolerance)
- Operation Type: Double-acting with adjustable cushioning
- Mounting Style: 20S - Double stud mounting (ISO 15552)
- Operating Pressure: 0.05-1.0 MPa
- Temperature Range: -20℃ to 80℃
- Piston Speed: 50-1000 mm/s (lubricated)
- Port Size: G1/4 (BSPP thread)
- Buffer Adjustment: 5-stage external screw control
- Rod Material: Hard chrome-plated steel (3μm coating)
- Tube Material: Anodized aluminum alloy
- Seal Type: NBR seals (optional FKM available)
- Weight: 4.2kg (without accessories)
- Dimensions: 298mm(L) × 90mm(W) × 90mm(H) (full extension)
- ISO Standard: 15552 (formerly ISO 6431)
- Protection Class: IP54 (standard sealing)
Precision-engineered adjustable stroke cylinder featuring patented cushioning technology that reduces end-impact by 70% compared to standard models. The SEJ series incorporates a visible stroke scale (1mm graduation) and dual locking nuts for position stabilization. Requires ISO VG32 hydraulic oil lubrication for optimal performance in high-cycle applications.
- Die casting machine ejection systems
- Automated conveyor gate control
- Plastic injection molding clamp units
- Precision woodworking feed mechanisms
- Automotive welding fixture positioning
Installation recommendation:
Align within 0.2mm perpendicularity tolerance using alignment jigs.
For vertical installations exceeding 45° angle, add mechanical
brake module SEJ-BM2 (sold separately). Perform initial cushion
adjustment at 0.5MPa pressure.
- Relubrication interval: Every 500km cumulative travel
- Buffer adjustment check: Every 50,000 cycles
- Seal replacement: Recommended at 3,000km cumulative travel
| Property | Property Value |
|---|---|
| sku | SEJ80X125-20S |
| 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:-20-70°C Speed Range:30-800mm/s |
| Port Size | PT3/8 |
| Magnet | S-Magnetic |
| Bore Diameter | 80 mm |
| 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.