Airtac SEJ Adjustable Cylinder SEJ40X75-30
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 SEJ40X75-30 Adjustable Stroke Cylinder Specifications
- Model: SEJ40X75-30
- Type: Compact adjustable stroke double-acting cylinder
- Bore size: 40mm
- Stroke: 75mm (standard) with 30mm adjustable range
- Operating pressure: 0.15–1.0 MPa
- Cushioning: Rubber buffer + adjustable stroke stopper
- Temperature range: -20℃ to 80℃
- Port size: M5x0.8 (standard), G1/8 optional
- Mounting: Basic type (no built-in mounts)
- Material: Aluminum alloy barrel, chromium-plated piston rod
- Adjustable stroke mechanism: Hex wrench-operated rotary stopper
- Repeat positioning accuracy: ±0.5mm
- Max speed: 500mm/s
- Weight: 1.35kg (excluding accessories)
- Dimensions: 200mm(L) × 40mm(W) × 40mm(H) (retracted length)
- Extended length: 275mm (75mm stroke)
Precision-engineered adjustable stroke cylinder featuring a unique dual-cushion system (end-position rubber + mid-stroke mechanical stopper). The anodized barrel resists corrosion while the magnetic piston enables position feedback when paired with sensors. Manual stroke adjustment allows ±15mm fine-tuning without disassembly.
- Precision workpiece positioning in PCB assembly
- Variable height clamping in packaging machinery
- Tooling fixture adjustments in automotive jigs
- Sorting gate control in food processing lines
- 3D printer bed stabilization mechanisms
Installation note:
For optimal performance, align cylinder axis within 0.2mm angular misalignment. Lubricate with ISO VG32 hydraulic oil before initial use.
Avoid side loads exceeding 30N. Stroke adjustment should be performed at 0.3MPa or lower pressure.
| Property | Property Value |
|---|---|
| sku | SEJ40X75-30 |
| Adjustable Stroke | 30mm |
| 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 | 75mm |
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.