Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 550mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke550 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10
The AirTAC SAIJ63X550-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end-of-travel position. With a 550 mm nominal stroke and a 10 mm adjustment range, it provides a usable travel window of 540-550 mm for precise positioning without adding external stops. It features a carbon steel piston rod and PT tapered ports.
Delivering 2182 N of push force at 0.7 MPa, this bore size handles substantial workloads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches, though this specific SKU is configured without a magnet. The rear adjuster acts purely as a travel stop to set deceleration and end position, not as a lock to hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 550 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×550 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10 Is Used
Commissioning Calibration
Dial in the exact end position within the 540-550 mm window during machine setup to perfect the stroke length without machining new hard stops.
Product Changeover
Quickly adjust the rear stopper by up to 10 mm on a packaging line when handling slightly different box sizes on the fly.
Long-Stroke Forming
Utilize the 2182 N push force at 0.7 MPa for pressing or forming tasks where a precise, adjustable end-of-stroke position is critical.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10 the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (offering 1374 N push at 0.7 MPa) lacks the necessary thrust, but an 80 mm bore (3518 N push) would be physically oversized. The 10 mm adjustable window is ideal for applications requiring minor commissioning tweaks or product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify the 63 mm bore, 550 mm stroke, 10 mm adjustment, PT port thread, and no magnet.
Because the stroke is 550 mm, the 20 mm diameter carbon steel rod will experience amplified side-loading if the load is unsupported. An external guide mechanism is strongly recommended to prevent premature seal wear and binding. If your application requires true load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI cylinder, as the SAIJ adjuster is not a braking device.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X550-10 FAQ
It features a rear adjusting screw that mechanically stops the piston up to 10 mm short of its 550 mm nominal stroke, giving an effective travel range of 540-550 mm. The cylinder remains double-acting, and the screw functions as a stop, not a lock.
At 0.5 MPa it provides 1559 N push and 1402 N pull. At 0.7 MPa, the push force increases to 2182 N, with a maximum push force of 2805 N at 0.9 MPa.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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