Airtac SEJ Adjustable Cylinder SEJ80X40-20S
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 SEJ80X40-20S Adjustable Cylinder Specifications
- Model: SEJ80X40-20S
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø80 mm
- Stroke: 40 mm (adjustable range: 0-40mm)
- Rod diameter: Ø20 mm
- Operating pressure: 0.1–0.9 MPa
- Cushioning: Adjustable pneumatic cushion
- Mounting style: Basic type (optional flange/feet mounting)
- Material: Aluminum alloy barrel, hard chrome-plated piston rod
- Seal material: NBR (nitrile rubber)
- Temperature range: -20℃ to 80℃
- Weight: 3.7 kg ±2%
- Dimensions:
- Extended length: 232 mm
- Retracted length: 192 mm
- Body diameter: Ø92 mm
- Mounting hole spacing: 125×125 mm
- Protection rating: IP65 (standard wiper design)
- Lubrication: Pre-lubricated (use ISO VG32 hydraulic oil)
High-precision adjustable stroke cylinder featuring a unique mechanical locking mechanism for stroke adjustment. The external stroke adjustment screw enables ±5mm micro-adjustment without disassembly. Enhanced dust resistance with multi-layered wiper seals and corrosion-resistant construction for harsh environments.
- Precision positioning in automated assembly lines
- Variable height work platforms
- Clamping force adjustment systems
- Packaging machine stroke compensation
- Mold positioning in injection molding
Operation note:
Always depressurize before adjusting stroke. Use locknut (M10×1.25) to secure setting.
Maximum side load capacity: 180N. For vertical installations, add mechanical support if axial load exceeds 50kg.
- Relubricate every 500km of cumulative travel
- Inspect cushion seals every 6 months
- Replace rod wiper after 1 million cycles
| Property | Property Value |
|---|---|
| sku | SEJ80X40-20S |
| 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 | <40mm> |
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.