Airtac SEJ Adjustable Cylinder SEJ40X80-20
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 SEJ40X80-20 Adjustable Cylinder Specifications
- Model: SEJ40X80-20
- Type: Double-acting adjustable stroke cylinder
- Bore size: 40mm
- Stroke: 80mm (adjustable range: ±3mm)
- Operating pressure: 0.05–1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning type: Adjustable rubber buffer
- Mounting style: Basic type (MF1) with front thread
- Port size: M5x0.8 (standard) or NPT1/8 (optional)
- Rod material: Chrome-plated carbon steel (S45C)
- Cylinder tube: Aluminum alloy with hard anodizing
- Seal material: NBR (standard) / PU (optional)
- Weight: 1.85kg ±3%
- Dimensions (L×W×H): 200mm × 54mm × 54mm (extended length)
- Rod end type: Male thread M10x1.25
- ISO standard: 6432 (mounting dimensions)
- Max theoretical thrust: 125.6N @0.5MPa
Precision-adjustable pneumatic cylinder featuring dual-position mechanical stops for millimeter-level stroke control. The hardened stainless steel guide rod and dual locknuts ensure stable positioning repeatability (±0.2mm). Integrated shock absorbers reduce end-impact noise to below 75dB(A).
- Precision clamping fixtures in CNC machining centers
- Variable-height positioning in automated assembly lines
- Material feeding systems requiring stroke compensation
- Packaging machinery with adjustable compression depth
- Semiconductor handling equipment
Installation note:
Locknuts require 18-22N·m torque during adjustment. Lubricate guide rod weekly with ISO VG32 hydraulic oil.
Avoid side-load exceeding 15N during operation. For vertical mounting, install rod-end downward.
- 2x M-Lock nuts (M10)
- Mounting bracket kit (PJ2M-40)
- Stroke adjustment wrench
- Anti-vibration shim set
| Property | Property Value |
|---|---|
| sku | SEJ40X80-20 |
| Adjustable Stroke | <20mm> |
| 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 | 80 mm |
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.