Airtac SEJ Adjustable Cylinder SEJ40X125-40S
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 SEJ40X125-40S Adjustable Cylinder Specifications
- Model: SEJ40X125-40S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 40mm
- Stroke: 125mm (adjustable range: 25-125mm)
- Operating pressure: 0.05–1.0 MPa
- Cushion type: Adjustable pneumatic cushion (both ends)
- Mounting style: Front flange (MF1) with optional foot mounting
- Port size: 1/4" NPT (G1/8 optional)
- Piston rod thread: M16×1.5
- Operating temperature: -20℃ to 80℃
- Seal material: Nitrile rubber (NBR) with wear-resistant ring
- Stroke adjustment: External mechanical stopper with locknut
- Repeat positioning accuracy: ±0.5mm
- Max speed: 500mm/s
- Weight: 1.85kg (excluding accessories)
- Dimensions: 220mm(L) × 80mm(W) × 60mm(H) (full extension)
- Protection rating: IP40 (dust resistant)
Precision-engineered adjustable stroke cylinder featuring dual-position memory capability through its unique mechanical stopper system. The hardened stainless steel piston rod and double-lip seal design ensure extended service life in high-cycle applications. Includes built-in magnetic sensor groove (width 6.5mm) for position feedback integration.
- Variable position clamping in CNC tool changers
- Adjustable press mechanisms for electronic component assembly
- Material handling systems requiring stroke modification
- Packaging line height adjustment stations
- Automotive welding fixture positioning
Installation note:
Always depressurize system before adjusting stroke. Lubricate rod weekly with ISO VG32 hydraulic oil.
Avoid side load exceeding 15N. For vertical mounting, use rod-end support bracket (optional accessory SEJ-ABK3).
| Property | Property Value |
|---|---|
| sku | SEJ40X125-40S |
| 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:-20-70°C Speed Range:30-800mm/s |
| Port Size | PT1/4 |
| Magnet | S-Magnetic |
| Bore Diameter | <40mm> |
| 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.