Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-75S 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 SAIJ100X375-75S
The AirTAC SAIJ100X375-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a substantial 3927N push force at 0.5 MPa and features a built-in magnet for position sensing. By turning the rear adjustment screw, you can trim the effective travel, creating a usable stroke window between 300 and 375 mm to perfectly dial in end positions during machine commissioning.
This 100mm bore profile cylinder incorporates an extruded aluminum barrel with sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE solid-state switches. It uses a robust 25mm carbon steel rod with an M20x1.5 thread, paired with PT tapered ports and variable air cushions at both ends. The rear stopper acts purely as a travel limit and deceleration aid, not a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-75S |
|---|---|
| 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 SAIJ100X375-75S
| 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 SAIJ100X375-75S Is Used
Product Changeover Tuning
Quickly adjust the end-of-stroke position by up to 75mm when switching between product sizes on a packaging line, avoiding physical cylinder swaps.
High-Force Positioning
Leverage the 3927N push force at 0.5 MPa to move heavy jigs while fine-tuning the exact 300 to 375mm travel distance during machine setup.
Sensor-Driven Assembly
Utilize the integrated magnet with DMSE electronic sensors to confirm end-of-stroke arrival on automated assembly stations with variable stop points.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-75S the Right Cylinder?
Choose this 100mm bore adjustable-stroke cylinder when your application requires high thrust and exact end-position tuning without adding bulky external stops. If your force requirements are lower, stepping down to an 80mm bore yields 2513N of push force at 0.5 MPa, while moving up to a 125mm bore provides 6136N. The SAIJ100X375-75-S is ideal for product changeovers where the end-stop distance varies. Because the nominal stroke is 375mm, an external guide is recommended to prevent excessive side-loading on the 25mm rod.
For a drop-in ISO 15552 replacement, match the 100mm bore, 375mm nominal stroke, 75mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. If you need true load-holding without live air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ rear adjuster will not hold a load mechanically.
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 SAIJ100X375-75S FAQ
At 0.5 MPa, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. If higher pressure is available, it can deliver up to 5497N of push force at 0.7 MPa.
The rear adjusting screw acts as a mechanical stopper that allows you to shorten the effective stroke from its nominal 375mm down to 300mm. This provides a 300-375mm usable travel window for fine-tuning end positions without swapping the cylinder.
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