Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 140mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-40
The AirTAC SAIJ100X140-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits you to trim the effective travel. With a 140 mm nominal stroke and a 40 mm adjustment range, it yields a 100-140 mm usable travel window for exact end-position tuning at commissioning. It delivers 3927 N of push force at 0.5 MPa, scaling to 5497 N at 0.7 MPa, making it suited for heavy manipulation tasks.
This variant is equipped with a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel integrates sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches if a magnet is added later. It features PT tapered port threads (G1/2) and adjustable air cushions at both ends to decelerate loads smoothly.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX140-40 Is Used
Variable End-Stop Tooling
Dial in the 100-140 mm stroke window during machine setup to accommodate different part lengths without swapping out the entire actuator.
Product Changeover Systems
Rapidly adjust the retract end-position on packaging lines handling varying box sizes, relying on the rear screw for fine-tuning rather than external stoppers.
Heavy-Duty Forming Press
Leverage the 5497 N push force at 0.7 MPa for stamping or pressing operations, using the 40 mm adjustment to set precise bottoming depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX140-40 the Right Cylinder?
Selecting this 100 mm bore is appropriate when 80 mm bore thrust (2513 N at 0.5 MPa) is insufficient for your tooling weight, but stepping up to 125 mm (6136 N at 0.5 MPa) would be physical overkill. The 40 mm adjustment window is ideal for product changeovers where the exact end-of-stroke hit point varies by part size, allowing you to dial in the position without adding external mechanical stops. For holding loads dead-ended without live air pressure, note that the rear adjuster functions only as a travel stop, not a lock; you would need an external rod lock or a SAIL/BSAI series cylinder for fail-safe holding.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 140 mm stroke, 40 mm adjustment range, PT port thread, and the specific SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). The 25 mm rod and M20x1.5 thread provide robust resistance to side loads, though any stroke over 300 mm would necessitate an external guide to prevent rod binding.
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 SAIJ100 Adjustable Cylinder SAIJ100AX140-40 FAQ
The rear adjuster acts as an external stopper that trims the retract stroke. For this model, you can shorten the 140 mm nominal stroke by up to 40 mm, giving an effective travel window of 100-140 mm. It only sets the end position; it does not lock the load without live air.
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N. The maximum force at 1.0 MPa is 801 kgf.
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