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 SEJ40X175-30S Adjustable Cylinder Specifications
- Model: SEJ40X175-30S
 - Type: Double rod adjustable stroke cylinder (with magnetic piston)
 - Bore size: 40mm
 - Stroke: 175mm (adjustable within ±5% of nominal stroke)
 - Operating pressure: 0.05–1.0 MPa
 - Cushioning: Adjustable pneumatic cushion (both ends)
 - Rod diameter: 16mm
 - Port size: Rc1/4 (G1/4 optional)
 - Seal material: Polyurethane (NBR optional)
 - Temperature range: -10℃ to 80℃
 - Weight: 3.8kg (without accessories)
 - Dimensions: 
            
- Body length: 364mm (full extension)
 - Width: 72mm (mounting bracket included)
 - Height: 52mm (rod centerline to base)
 
 - Rod thread: M16×1.5 (both ends)
 - Mounting type: Basic type (switchable to LB/LF mounting with adapter)
 - Protection rating: IP54 (standard wiper design)
 
High-precision adjustable stroke cylinder featuring dual anti-rotation rods and position feedback capability. The integrated stroke adjustment mechanism allows ±8.75mm fine-tuning via locknut system. Nickel-plated rod resists scoring in contaminated environments. Requires ISO VG32 or equivalent hydraulic oil lubrication.
- Precision clamping fixtures in CNC machining centers
 - Variable height positioning in semiconductor handling robots
 - Packaging line product height compensation systems
 - Automotive assembly line press-fit operations
 - Glass panel polishing equipment pressure control
 
- Relubricate every 500km of cumulative stroke movement
 - Inspect cushion seals every 200,000 cycles in high-speed applications
 - Maximum side load: 25N at rod end (moment load ≤7Nm)
 
| Property | Property Value | 
|---|---|
| sku | SEJ40X175-30S | 
| Adjustable Stroke | 30mm | 
| 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 | 175mm | 
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.
              






