Airtac SEJ Adjustable Cylinder SEJ125X200-75
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 SEJ125X200-75 Adjustable Cylinder Technical Details
- Model: SEJ125X200-75
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø125mm (±0.5mm tolerance)
- Stroke: 200mm (adjustable range 0-200mm)
- Cushioning type: External adjustable rubber buffer
- Operating pressure: 0.05-0.8 MPa
- Temperature range: -20℃ to 80℃
- Piston speed: 50-750 mm/s
- Port thread: G1/2 (BSPP)
- Mounting options: MF12 series base mounts or custom flange
- Rod end type: Female thread M30x1.5
- Seal material: NBR (Nitrile) standard / optional FKM
- Body material: Aluminum alloy with hard anodized coating
- Weight: 5.8kg (excluding mounting accessories)
- Dimensions: 200mm (stroke length) × 125mm (bore diameter) × 180mm (height with base)
High-precision industrial cylinder featuring micro-adjustment capability through its unique external buffer mechanism. The dual chrome-plated piston rod (surface hardness HRC45-50) ensures wear resistance in continuous operation. Designed with 4-position adjustable stroke limiter (marked at 25mm intervals) for process flexibility.
- Press machine ejection systems
- Automotive welding fixture positioning
- Heavy-load material clamping (up to 980N at 0.5MPa)
- Plastic injection molding machine core pulling
- Packaging line product stoppers
Installation protocol:
Requires periodic lubrication (ISO VG32 hydraulic oil recommended).
For vertical mounting, use supplemental guide mechanisms when
handling eccentric loads exceeding 15° deviation. Maintain
air filtration at 5μm minimum.
Critical note:
Buffer adjustment must be performed with depressurized system.
Locknut torque specification: 12-15N·m. Exceeding 0.8MPa may
cause permanent buffer component deformation.
| Property | Property Value |
|---|---|
| sku | SEJ125X200-75 |
| 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°C to 70°C Speed Range: 30 to 500 mm/s |
| Port Size | PT 1/2 |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | <200mm> |
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.