Airtac SEJ Adjustable Cylinder SEJ80X75-50S
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 SEJ80X75-50S Technical Specifications
- Model: SEJ80X75-50S
- Bore size: 80 mm
- Stroke: 75 mm (±0.5 mm adjustment range)
- Operating pressure: 0.1–0.8 MPa
- Cushion type: Adjustable pneumatic cushion (both ends)
- Mounting style: Standard foot mounting (MF1) with optional front flange (FF) or rear flange (RF)
- Port size: PT1/4 (G1/4 optional)
- Piston rod material: Hard chrome-plated carbon steel (Cr-Mo steel optional)
- Tube material: Anodized aluminum alloy
- Seal material: Heat-resistant NBR (-20℃ to 100℃)
- Weight: 3.5 kg (without accessories)
- Dimensions: 250mm(L) × 100mm(W) × 120mm(H) (at mid-stroke position)
- Max speed: 500 mm/s
- Lubrication: Pre-lubricated (relubrication interval: 2000 km)
- ISO standard: 6432 (mounting dimensions compliant)
High-precision adjustable cylinder with dual shock absorption system, featuring a 5-stage cushion adjustment mechanism for smooth deceleration. The "50S" variant includes a magnetic piston for position sensing compatibility. The through-rod design allows external stroke adjustment via hex wrench (included).
- Precision press machines with variable stroke requirements
- Automated assembly line positioning units
- Die-casting machine ejection systems
- Textile machinery tension control
- Plastic injection molding clamp adjustment
Installation note:
Maintain 0.5-1mm clearance between cylinder base and mounting surface for thermal expansion.
For vertical installations exceeding 45° angle, use rod-end support brackets (ASNU-80 accessory recommended).
- Loosen cushion lock nut (M6) with 8mm wrench
- Rotate cushion screw (clockwise to soften, counter-clockwise to harden)
- Test stroke 3-5 times after adjustment
- Retighten lock nut while holding screw position
| Property | Property Value |
|---|---|
| sku | SEJ80X75-50S |
| Adjustable Stroke | <50mm> |
| 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 | 75mm |
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.