Airtac SEJ Adjustable Cylinder SEJ40X250-40S
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 SEJ40X250-40S Adjustable Cylinder Specifications
- Model: SEJ40X250-40S
- Type: Adjustable stroke single-rod double-acting cylinder
- Bore size: 40mm
- Stroke: 250mm (adjustable)
- Operating pressure: 0.15–0.8 MPa
- Cushioning type: Adjustable pneumatic cushion (both ends)
- Mounting style: Standard foot/Flange (optional accessories)
- Rod material: Hard chrome-plated steel
- Tube material: Aluminum alloy with hard anodizing
- Seal material: NBR/PU compound seals
- Temperature range: -20℃ to 80℃
- Weight: 3.5kg ±2% (excluding accessories)
- Dimensions: 450mm(L) × 72mm(W) × 72mm(H) (full extension)
- Port size: G1/8 (standard) / NPT1/4 (optional)
- Lubrication: Pre-lubricated (relubrication interval: 2000km)
High-precision adjustable stroke cylinder featuring micrometer-style stroke adjustment mechanism with locknut. The double stainless steel guide rods ensure exceptional lateral load capacity and position repeatability (±0.2mm). Integrated shock absorbers with 5-stage cushion adjustment prevent end-impact damage. Corrosion-resistant construction with IP54 equivalent protection.
- Precision press-fit operations in automotive assembly
- Variable height positioning in packaging machinery
- Adjustable clamping fixtures for CNC workholding
- Material handling systems requiring stroke flexibility
- Semiconductor manufacturing equipment
Installation note:
Always degrease guide rods before first use. For adjustable applications,
perform stroke calibration at 0.4MPa air pressure. Maintain minimum 0.5mm
clearance between stopper plates during adjustment. Use M6 mounting bolts
with 12.9 grade or higher.
| Property | Property Value |
|---|---|
| sku | SEJ40X250-40S |
| 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 | <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.