Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 175mm 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
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-100
The AirTAC SAIJ63X175-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 75 to 175 mm, allowing you to dial back the nominal 175 mm stroke by up to 100 mm during commissioning. In the 63 mm bore class, it delivers a 0.5 MPa pull force of 1402 N and a push force of 1559 N.
This unit uses a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance over standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if position feedback is added later. The rear adjustment screw acts purely as a mechanical stop to set the retract end position and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 175 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 SAIJ63AX175-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×175 | 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 SAIJ63AX175-100 Is Used
Machine Changeover
Dial in the exact retract distance from 75 to 175 mm when switching product sizes on a packaging line, eliminating the need to swap cylinders or bolt on external stops.
End-Position Tuning
Fine-tune the final end position during machine commissioning using the rear stopper, absorbing mechanical tolerances without altering your fixed mounting footprint.
Variable End Stops
Set precise retract limits for automated assembly presses, leveraging the 1402 N pull force to handle varying tooling depths efficiently.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-100 the Right Cylinder?
Choose this 63 mm bore when an application requires around 1559 N of push force at 0.5 MPa; step down to a 50 mm bore (982 N push) for lighter duties, or up to an 80 mm bore (2513 N push) if your load demands more thrust. An adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops for machine changeovers or product-size adjustments without swapping hardware.
To replace an ISO 15552 cylinder, match the 63 mm bore, 175 mm stroke, 100 mm adjustment, PT tapered port threads, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 175 mm stroke is under the 300 mm side-load threshold, the 20 mm rod handles standard loads well, though long unsupported strokes still need an external guide. For load-holding without live pressure, select a SAIL or BSAI cylinder instead, as this adjuster is not a lock.
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 SAIJ63AX175-100 FAQ
At 0.5 MPa, the SAIJ63X175-100 generates a push force of 1559 N and a pull force of 1402 N. It can achieve a maximum push force of 2805 N at 0.9 MPa.
The rear adjuster screw lets you mechanically shorten the 175 mm nominal stroke, providing a usable travel window between 75 and 175 mm. It functions as a travel stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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