Airtac Adjustable Cylinder SAIJ32 SAIJ32X100-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32X100-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke100 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32X100-20S
The AirTAC SAIJ32X100-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 402N push force at 0.5 MPa and uses a PT G1/8 port. With a 100mm nominal stroke and a 20mm adjustment range, it delivers a usable travel window of 80-100mm for precise end-position tuning during commissioning. This extruded aluminum barrel design includes dual sensor grooves for CMSE reed and DMSE electronic switches.
The integrated rear stopper screw allows you to dial in the exact retract distance without swapping out the cylinder or adding bulky external stops. It features a 12mm carbon steel rod and 27mm cushions at both ends. Remember that this adjuster acts only as a travel stop, not a load-holding lock, so live air is required to maintain position.
Airtac Adjustable Cylinder SAIJ32 SAIJ32X100-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32X100-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32X100-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×100 | 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 Adjustable Cylinder SAIJ32 SAIJ32X100-20S Is Used
Machine Changeover
Dial in the 80-100mm retract stop instantly when switching product sizes on a packaging line, avoiding cylinder swaps.
End-Position Tuning
Fine-tune the final resting position during machine commissioning using the rear adjuster rather than shimming heads.
Variable End Stops
Set precise retract distances for testing sensors or actuators, tweaking the travel window on the fly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32X100-20S the Right Cylinder?
Choose this 32mm bore when your application requires the 402N thrust at 0.5 MPa and a variable end-stop within an 80-100mm window. If you need higher force, stepping up to the 40mm bore yields 628N, while dropping to a smaller fixed-stroke SAI is better if no field adjustment is needed. For this 100mm stroke, the 12mm rod handles moderate side loads, but longer unsupported strokes require an external guide. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
To replace an ISO 15552 cylinder, match the 32mm bore, 100mm stroke, 20mm adjustment, PT G1/8 port, and the -S magnet. Because the rear adjuster and air cushions only decelerate the load, you must keep air pressure applied to hold position. For true load-holding without live pressure, consider the SAIL air-released lock or BSAI clamp-lock variants instead.
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 Adjustable Cylinder SAIJ32 SAIJ32X100-20S FAQ
The rear adjuster screw lets you shorten the 100mm nominal stroke by up to 20mm, giving an 80-100mm usable travel window. It acts as a mechanical stop and does not lock the load without live air.
At 0.5 MPa operating pressure, it provides a push force of 402N and a pull force of 345N. The maximum push force is 724N at 0.9 MPa.
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