Airtac SEJ Adjustable Cylinder SEJ40X125-50
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 SEJ40X125-50 Adjustable Cylinder Specifications
- Model: SEJ40X125-50
- Type: Double-acting adjustable stroke cylinder with built-in cushioning
- Bore size: 40mm
- Stroke: 125mm (adjustable via external stopper)
- Mounting style: MA-type (front flange with mounting holes)
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Adjustable rubber buffers at both ends
- Port size: M5x0.8 (standard), optional G1/8 available
- Operating temperature: -10℃ to 80℃
- Piston rod material: Chrome-plated carbon steel (SCM435)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (standard), optional Polyurethane available
- Weight: 1.8kg (excluding accessories)
- Dimensions:
- Body length: 256mm (full extension)
- Stroke-adjusted min. length: 131mm
- Mounting flange: 50mm(W) × 40mm(H)
- Rod end thread: M10×1.25
- Protection rating: IP54 (standard wiper seal)
Precision-engineered adjustable stroke cylinder featuring micrometer-style stroke adjustment (±5mm fine-tuning capability). The integrated cushioning system reduces end-impact noise to ≤65dB while maintaining positioning accuracy of ±0.2mm. Includes corrosion-resistant hard coat anodizing for industrial environments. Compatible with ISO 6432 mounting accessories.
- Precision part insertion in automotive assembly lines
- Variable height positioning in packaging machinery
- Tooling fixture adjustment for CNC machine tending
- Material handling systems requiring stroke flexibility
- Printing press roller engagement mechanisms
Installation note:
For optimal performance, maintain ≤0.5mm parallelism between cylinder axis and load direction.
Lubricate rod weekly with ISO VG32 hydraulic oil in high-cycle applications (>500 strokes/min).
- Loosen lock nut (14mm wrench size)
- Rotate adjustment screw (5mm hex key) - 1 full rotation = 2mm stroke change
- Re-tighten lock nut to 3.5N·m torque
| Property | Property Value |
|---|---|
| sku | SEJ40X125-50 |
| 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 | PT1/4 |
| Magnet | Non-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.