Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30 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 SAIJ100X375-30
The AirTAC SAIJ100X375-30 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 3927N of push force at 0.5 MPa, utilizing a 25mm carbon steel rod and a G1/2 PT tapered port. By integrating a mechanical stopper at the rear, this model allows you to fine-tune the end-of-travel position during commissioning without relying on external stops. With a nominal 375mm stroke and a 30mm adjustment range, it provides a usable travel window of 345-375mm to perfectly dial in your machine's end positions.
This adjustable-stroke design is ideal for product changeovers, letting you shorten the effective stroke on the fly rather than swapping out the entire cylinder. The extruded aluminum barrel features sensor grooves on both sides, ready to accept AirTAC CMSE reed or DMSE electronic sensors if a magnet is added later. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR mounts found on some other series. Remember that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30 |
|---|---|
| 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 SAIJ100X375-30
| 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 SAIJ100X375-30 Is Used
Machine Setup & Changeover
Dial in the exact 345-375mm end-stop during commissioning or product changeovers without swapping cylinders or adding external shims.
Variable End-Stop Positioning
Ideal for automated lines where the final retract position needs fine-tuning to accommodate slightly different product sizes on the same fixture.
High-Force Dialing
Leverage the 7068N push force at 0.9 MPa for heavy pressing or lifting tasks while precisely controlling the travel end-point.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-30 the Right Cylinder?
Choose this 100mm bore cylinder when your application requires high thrust—such as 7068N push force at 0.9 MPa—and precise end-position control. If your process demands slightly less force, stepping down to an 80mm bore yields 4523N push at 0.9 MPa, whereas moving up to a 125mm bore provides 11045N. The adjustable 345-375mm travel window is perfect for setups requiring variable end-stops or frequent product size changeovers, eliminating the need to machine custom spacers or buy a fixed-stroke SAI cylinder.
Because the 375mm stroke is relatively long, the 25mm rod and M20x1.5 rod thread provide excellent rigidity, but an external guide is still recommended to prevent excessive side-loading on the rod. For any load-holding requirements without continuous air pressure, note that this cylinder's adjuster and air cushions function only as travel stops, not brakes; you should instead look at the SAIL (air-released lock) or BSAI (clamp-lock) series. To match this ISO 15552 interchangeable cylinder, specify the 100mm bore, 375mm stroke, 30mm adjustment, G1/2 PT port, and your preferred mounting option.
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 SAIJ100X375-30 FAQ
At 0.5 MPa, it provides 3927N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N, and the pull force reaches 6625N.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the nominal 375mm stroke back by up to 30mm, creating a usable travel window of 345-375mm. It only sets the travel end and does not lock the load without live air pressure.
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