Airtac SEJ Adjustable Cylinder SEJ40X300-75S
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 SEJ40X300-75S Adjustable Cylinder Technical Details
- Model: SEJ40X300-75S
- Type: Double-acting adjustable stroke cylinder
- Bore size: 40mm (ISO 6432 standard)
- Stroke: 300mm (adjustable range 0-75mm)
- Mounting style: Front flange (MF1), rear flange (MF2), foot mount (MP4) options
- Operating pressure: 0.05-1.0 MPa
- Cushioning: Adjustable pneumatic cushion with locknut
- Stroke adjustment: External screw mechanism with ±3mm precision
- Port size: G1/8 (BSPP thread)
- Operating temperature: -10℃ to 80℃
- Piston rod material: Chrome-plated carbon steel (S45C)
- Tube material: Anodized aluminum alloy
- Seal material: NBR (Nitrile rubber)
- Weight: 2.85kg (dry, without accessories)
- Dimensions:
- Extended length: 660mm ±2mm
- Retracted length: 360mm ±2mm
- Width (mounting face): 62mm
- Height (including rod): 76mm
- ISO standard: 6432/DIN ISO 6431
- Protection class: IP54 (standard seals)
Precision-adjustable industrial cylinder featuring dual-position memory function through its unique mechanical stop system. The 75S variant includes enhanced wear-resistant guide rings and shock-absorbing end caps. Requires ISO 8573-1:2010 [4:4:4] class compressed air with 1-5μm filtration. Lubricated operation recommended (ISO VG32 pneumatic oil).
- Variable stroke press machines
- Packaging line product height adjustment
- Automated welding jig positioning
- Glass cutting equipment with multiple stop positions
- Plastic injection mold core-pulling mechanisms
Installation guidelines:
Mount with 0.1mm/m alignment tolerance maximum. For vertical installations,
use counterbalance valves when handling loads over 15kg. Lubricate adjustment
screw threads monthly with Molykote EM-30L grease.
| Property | Property Value |
|---|---|
| sku | SEJ40X300-75S |
| Adjustable Stroke | 75mm |
| 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 | 300mm |
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.