Airtac SEJ Adjustable Cylinder SEJ50X350-75S
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 SEJ Adjustable Cylinder SEJ50X350-75S Technical Specifications
- Model Code: SEJ50X350-75S
- Bore Size: Ø50 mm
- Stroke Length: 350 mm (adjustable)
- Adjustment Range: ±5mm stroke fine-tuning via external screw
- Operating Pressure: 0.05-1.0 MPa
- Piston Speed: 50-800 mm/s
- Cushioning: Rubber buffer + adjustable hydraulic absorber
- Mounting Style: Basic MF1 (front flange) with standard ISO/VDS mounting pattern
- Rod End: M20×1.5 external thread
- Port Size: G1/8 (NPT1/8 optional)
- Ambient Temperature: -10℃ to 80℃
- Seal Material: NBR (Nitrile) standard, optional FKM for high temp
- Body Material: Aluminum alloy (anodized)
- Weight: 4.8 kg ±2% (excluding accessories)
- Dimensions:
- Extended Length: 644 mm
- Retracted Length: 294 mm
- Width (MF1 flange): 80 mm
- Height (with rod): 105 mm
- Accessories: Built-in magnet for position sensing (compatible with S-08 series sensors)
Precision-engineered adjustable stroke cylinder featuring dual-stage deceleration control. The SEJ50X350-75S combines mechanical stroke adjustment with hydraulic damping, enabling micron-level positioning accuracy in repetitive operations. The hardened chromium piston rod (HRC 45-50) ensures wear resistance in high-cycle applications.
- Die casting machine ejection systems
- Glass tempering furnace door positioning
- PCB drilling equipment Z-axis control
- Automotive welding jig clamping
- Textile machinery tension adjustment
Operational guidance:
Lubricate with ISO VG32 hydraulic oil through air line lubricator (drip rate 1/400).
For precision adjustment: Loosen locknut (M24×1.5), rotate adjustment screw (1 full turn = 1.5mm stroke change),
then retighten to 4.5-5.5 N·m torque. Maximum side load: 45N at rod end.
| Property | Property Value |
|---|---|
| sku | SEJ50X350-75S |
| 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 | <50mm> |
| Stroke | 350mm |
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.