1. ISO15552 (formerly ISO6431) standard compliant cylinder
2. Features asymmetric bidirectional sealing structure with compact dimensions and integrated oil reservoir function in piston sealing
3. H-shaped aluminum tubing with rodless design enhances corrosion resistance; External sensor mounting grooves enable quick installation
4. Smooth and stable cushion adjustment mechanism
5. Multiple cylinder specifications and mounting accessories available for versatile applications
6. High-temperature resistant sealing materials support operating temperature range of 0~150℃
Category: Standard Cylinders | Brand: AIRTAC | Series: SAIJ63
AirTAC SAIJ63 Adjustable Stroke Cylinder SAIJ63X550-40 Technical Details
- Model Code: SAIJ63X550-40
- Series: SAI-J Compact Series
- Bore Size: 63mm (±0.1mm tolerance)
- Stroke Length: 550mm (adjustable in 1mm increments)
- Operating Pressure: 0.1-0.8 MPa (14.5-116 PSI)
- Cushioning Type: Adjustable air cushion (both ends)
- Mounting Styles: MF1 (Front flange), MF2 (Rear flange), MB1 (Foot mounting)
- Piston Speed: 50-700mm/s (lubricated condition)
- Ambient Temperature: -10℃ to 70℃ (NBR seals)/-20℃ to 70℃ (FKM seals optional)
- Port Size: G1/4 (BSPP thread)
- Material:
            - Cylinder Tube: Aluminum alloy (hard anodized)
- End Caps: Die-cast aluminum
- Piston Rod: SUS304 stainless steel (chrome-plated)
- Seals: NBR standard (FKM/Viton® available)
 
- Weight: 5.8kg (including standard accessories)
- Dimensions: 680mm(L) × 82mm(W) × 82mm(H) (at full extension)
- Repeat Positioning Accuracy: ±0.5mm
- IP Rating: IP54 (standard), IP67 (with optional rod cover)
High-precision adjustable stroke cylinder featuring dual-position locking mechanism with 40mm stroke adjustment range. The hexagonal adjustment screw allows tool-free stroke fine-tuning during operation. Anti-rotation design maintains orientation stability during long-stroke applications. Pre-lubricated for maintenance-free operation up to 3,000km travel distance.
- Variable height work platforms in automotive assembly
- Adjustable clamping systems in CNC machining centers
- Packaging line product height compensation mechanisms
- Solar panel angle adjustment systems
- Printing press roller positioning
 Installation Guidelines: 
            For optimal performance, install with 0.5-1mm alignment tolerance. Use flexible couplings when connecting to guided mechanisms. Lubricate rod weekly in high-cycle applications (>500 cycles/day). Maximum side load: 150N at mid-stroke.
 Installation Guidelines: 
            For optimal performance, install with 0.5-1mm alignment tolerance. Use flexible couplings when connecting to guided mechanisms. Lubricate rod weekly in high-cycle applications (>500 cycles/day). Maximum side load: 150N at mid-stroke.
        - Magnetic Sensor Kit (D-M9NW)
- Heat-resistant Rod Cover (-HR suffix)
- Low-friction Rod Seal Kit (-LF suffix)
- Stainless Steel Full Construction (-SS version)
| Property | Property Value | 
|---|---|
| sku | SAIJ63X550-40 | 
| 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 | Non-magnetic | 
| Bore Diameter | 63mm | 
| Stroke | 550mm | 
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.
 
              









