Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-100S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 375mm 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
- Stroke375 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-100S
The AirTAC SAIJ100X375-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a robust 3927N push force at 0.5 MPa and features a 375 mm nominal stroke that can be dialed back by up to 100 mm, giving you a precise 275-375 mm usable travel window for exact end-position tuning during commissioning. This built-in adjustability eliminates the need to swap cylinders or bolt on external stoppers when finalizing machine setups.
This variant includes a magnet for position sensing, working seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches mounted in the dual-side sensor grooves of the extruded aluminum barrel. It uses a carbon steel piston rod with an M20x1.5 thread, and the generous 100 mm adjustment range makes it highly effective for product changeovers on automated lines. The rear adjuster acts purely as a travel stop and deceleration aid alongside the variable air cushions at both ends, meaning it will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-100S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 375 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 SAIJ100X375-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×375 | 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 SAIJ100X375-100S Is Used
Variable End-Stop Tuning
Dial in the exact 275-375 mm travel window during machine commissioning to perfectly seat heavy components without adding external mechanical stops.
Product Size Changeover
Quickly shorten the retract distance by up to 100 mm to accommodate different product lengths on a shared conveyor line, minimizing downtime between runs.
Heavy Duty Positioning
Leverage the 3927N push force at 0.5 MPa to shift substantial jigs or pallets, using the dual-side sensor grooves for DMSE electronic feedback.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-100S the Right Cylinder?
Choose this 100 mm bore when your application requires substantial thrust, stepping up from a 63 mm bore that yields 1559N of push force at 0.5 MPa, or scaling down from a 125 mm bore providing 6136N. An adjustable stroke is ideal over a fixed SAI cylinder when you need on-the-fly end-stop modifications to accommodate varying product sizes without mechanical rebuilds. Because the total travel is 375 mm, the M20x1.5 carbon steel rod is highly susceptible to side-loading and bending under heavy offsets; an external guide rail or load carrier must be used to prevent cylinder damage.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 375 mm stroke, PT tapered port threads, and the 100 mm adjustment range. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. For applications requiring true load-holding without live air, select the SAIL locking cylinder or BSAI clamp-lock instead of relying on the SAIJ adjuster. The operating speed range is 30-800 mm/s.
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 SAIJ100X375-100S FAQ
At a standard 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927N of push force and 3681N of pull force. If pressure is increased to 0.9 MPa, the push force reaches 7068N.
The rear adjusting screw allows you to shorten the effective travel from the 375 mm nominal stroke by up to 100 mm, creating a usable 275-375 mm travel window. The adjuster acts as a mechanical stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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