Airtac SEJ Adjustable Cylinder SEJ80X70-40S
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 SEJ Adjustable Cylinder SEJ80X70-40S Specifications
- Model: SEJ80X70-40S
- Type: Double-acting adjustable stroke cylinder with cushioning
- Bore size: 80 mm
- Stroke: 70 mm (adjustable via external screws)
- Rod diameter: 20 mm
- Operating pressure: 0.05–1.0 MPa
- Temperature range: -10℃ to 80℃
- Cushioning: Dual adjustable rubber buffers
- Mounting style: Basic type (optional foot/mounting bracket accessories)
- Material: Aluminum alloy barrel, chrome-plated piston rod
- Seal type: NBR seals (oil/heat resistant)
- Weight: 3.8 kg (excluding accessories)
- Dimensions:
- Length (retracted): 203 mm
- Width (body): 100 mm
- Height (with rod): 130 mm
- Air port size: G1/4
- Lubrication: Required (ISO VG32 pneumatic oil)
- Sensor compatibility: Supports magnetic switch installation (D-A93 series)
High-precision industrial cylinder featuring patented cushioning adjustment technology that minimizes end-impact noise while allowing ±5% stroke fine-tuning. The hardened chromium rod surface provides exceptional wear resistance in high-cycle applications (up to 1.5 million cycles at 0.5 MPa). Includes anti-rotation guide for stable linear motion.
- Press machine stroke control systems
- Automated assembly line positioning devices
- Packaging equipment clamping mechanisms
- Plastic injection molding ejectors
- Material handling lift gates
Installation note:
Always degrease sliding surfaces before installation. For vertical mounting,
install a lubricator in the air circuit. Adjust cushioning screws gradually
(1/4 turn increments) while testing under operational pressure.
Maintenance alert:
Replace rod wipers every 500,000 cycles in dusty environments.
Avoid using silicone-based lubricants to prevent seal degradation.
| Property | Property Value |
|---|---|
| sku | SEJ80X70-40S |
| 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:-20-70°C Speed Range:30-800mm/s |
| Port Size | PT3/8 |
| Magnet | S-Magnetic |
| Bore Diameter | 80 mm |
| Stroke | 70mm |
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.