Airtac SEJ Adjustable Cylinder SEJ40X250-10S
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 SEJ40X250-10S Adjustable Cylinder Specifications
- Model: SEJ40X250-10S
- Type: Adjustable stroke single-rod double-acting cylinder
- Bore size: 40mm
- Stroke: 250mm (adjustable via mechanical stopper)
- Operating pressure: 0.1–0.9 MPa
- Mounting style: Standard foot mounting (ISO 15552 compatible)
- Port size: G1/8 (NPT optional)
- Cushioning: Adjustable pneumatic cushioning at both ends
- Rod diameter: 16mm (chrome-plated steel)
- Material: Aluminum alloy barrel, hard anodized piston
- Seal material: NBR (Nitrile rubber)
- Temperature range: -20℃ to 80℃
- Weight: 2.85kg ±3% (without accessories)
- Dimensions: 350mm(L) × 80mm(W) × 80mm(H) (max extended length)
- Rod thread: M10×1.5 male thread (front end)
- Protection class: IP40 (standard), IP67 available on request
- Lubrication: Pre-lubricated (DIN 51503 VDMA standard)
High-precision adjustable stroke cylinder featuring dual-position locking mechanism for stable stroke adjustment. The corrosion-resistant design incorporates wear-resistant guide bands and dust-resistant wiper rings. Includes magnetic piston for position sensing compatibility. Requires filtered air (≤5μm) with ISO 8573-1:2010 Class 3.4.2 air quality.
- Precision positioning in automated assembly lines
- Variable height adjustment in material handling systems
- Clamping force control in automotive welding fixtures
- Packaging machine stroke customization for different product sizes
- Printing press paper feed mechanisms
Installation note:
Adjustable stopper requires torque limitation (max 2.5Nm) during calibration.
Maintain 0.5mm minimum clearance between stopper and cylinder body.
For vertical installations, use rod-end down orientation to prevent seal wear.
- Re-lubricate every 5 million cycles (use ISO VG32 hydraulic oil)
- Inspect cushioning adjustment screws quarterly
- Replace wiper seals after 10,000km cumulative rod travel
| Property | Property Value |
|---|---|
| sku | SEJ40X250-10S |
| Adjustable Stroke | <10mm> |
| 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 | <250MM> → <250mm> |
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.