Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-100S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 140mm 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
- Stroke140 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-100S
The AirTAC SAIJ63X140-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical adjuster, allowing you to dial back the nominal 140 mm stroke by up to 100 mm. This creates a highly flexible usable travel window of 40 to 140 mm, letting you fine-tune the retract end position at commissioning without swapping hardware. It delivers a robust 2182 N of push force at 0.7 MPa, matching the standard SAI force class.
Built with a SUS420J2 stainless steel rod and a PT tapered port, this model includes a standard magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting. It uses the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting the FB, CA, CB, and CR options.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-100S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 140 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 SAIJ63AX140-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×140 | 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 SAIJ63AX140-100S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance from 40 to 140 mm during machine setup, eliminating the need to machine custom spacer plates for every new product run.
Product Size Changeover
Quickly adapt a packaging line to handle different carton lengths by adjusting the cylinder's stroke stopper on the fly, minimizing downtime between batches.
Sensor Calibration and Testing
Leverage the -S magnet and DMSE electronic sensors to verify position across the full adjustment range, ensuring precise end-of-stroke confirmation before locking the setting.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX140-100S the Right Cylinder?
Choose this 63 mm bore when your application requires approximately 2182 N push force at 0.7 MPa and you need extreme travel flexibility. The massive 100 mm adjustment range is ideal for product-size changeovers on a line, letting you set new retract stops in minutes. If you need less variance, a fixed SAI cylinder or a smaller adjuster like the SAIJ63X140-20 is lighter and faster to dial in. For loads needing 1402 N pull force at 0.5 MPa, this bore is optimal; step down to a 50 mm bore if your force requirements are lower.
When ordering, specify the PT port thread, the SUS420J2 (A) rod material, and the -S magnet option for CMSE/DMSE switch compatibility. Remember that the rear adjuster acts only as a travel stop and deceleration aid; it does not hold the load without live air. For fail-safe load holding, use an external rod lock or explore the SAIL or BSAI series. Since the nominal stroke is 140 mm, standard mounting is fine without external guides.
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 SAIJ63AX140-100S FAQ
The SAIJ63X140-100-S has a rear adjusting screw that physically limits the piston's retract travel. By turning the screw, you can shorten the effective stroke from its nominal 140 mm down to as little as 40 mm, giving you a 100 mm adjustment window without changing the cylinder itself.
At an operating pressure of 0.7 MPa, this 63 mm bore cylinder generates 2182 N of push force and 1964 N of pull force. It can deliver up to 318 kgf (3118 N) at its maximum rated pressure of 1.0 MPa.
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