Airtac SEJ Adjustable Cylinder SEJ125X125-40S
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 SEJ125X125-40S Adjustable Cylinder Specifications
- Model: SEJ125X125-40S
- Type: Double-acting adjustable cushion cylinder
- Bore size: Ø125mm (±0.5mm tolerance)
- Stroke: 125mm (adjustable ±2mm via cushion mechanism)
- Operating pressure: 0.05–1.0 MPa
- Piston speed: 50–800 mm/s (oil-buffer optimized)
- Port size: G1/2 (BSPP thread)
- Cushion type: External adjustable rubber + internal air cushion
- Rod diameter: Ø40mm (chrome-plated steel)
- Mounting style: MF1 (basic front flange)
- Seal material: NBR with wear-resistant ring
- Temperature range: -10℃ to 80℃
- Weight: 12.5kg (without accessories)
- Dimensions: 318mm(L) × 144mm(W) × 144mm(H) (at full retraction)
Heavy-duty industrial cylinder featuring dual-stage cushioning with micrometer-style adjustment knobs (clockwise for softer stop). The anodized aluminum end caps and double-lip rod seal ensure leak-proof operation in high-cycle applications. Includes magnetic piston for sensor compatibility.
- Press brake tool positioning systems
- Automotive welding fixture actuation
- Palletizing robot end-effector drives
- Injection molding machine ejectors
- Steel coil handling equipment
Installation tip:
Apply Molykote G-5007 grease to rod threads before stroke adjustment.
Allow 20mm front clearance for cushion screw access. Maximum side load: 350N.
| Property | Property Value |
|---|---|
| sku | SEJ125X125-40S |
| Adjustable Stroke | <40mm> |
| 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 | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 125mm |
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.