Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-50S
The AirTAC SAIJ100X175-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. With a nominal 175 mm stroke and a 50 mm adjustment range, it provides a usable travel window of 125 to 175 mm. This allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. It delivers 3927 N of push force at 0.5 MPa.
Equipped with a SUS420J2 stainless steel rod (option A) and PT tapered ports, this unit integrates a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides. The rear adjuster acts strictly as a travel stop to set deceleration, not a load lock, so live air is required to hold position.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 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 SAIJ100AX175-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×175 | 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 SAIJ100AX175-50S Is Used
Variable End Stops
Dial in the exact retract distance between 125 and 175 mm for machining operations that require frequent recalibration of end positions.
Product Changeover
Quickly adapt a production line to new package sizes by turning the rear adjuster rather than physically swapping out the entire actuator.
Commissioning Setup
Fine-tune the travel end during initial machine build to perfect timing and avoid mechanical hard crashes without adding external stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-50S the Right Cylinder?
Choose this 100 mm bore when an application requires substantial thrust, such as 5497 N at 0.7 MPa, alongside variable end-stop positioning. If you need less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. The 50 mm adjustment window is ideal for product-size changeovers on a line, whereas a fixed SAI cylinder lacks this commissioning flexibility. For load-holding without continuous air pressure, select a SAIL or BSAI cylinder instead.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 175 mm stroke, 50 mm adjuster, PT G1/2 ports, and the -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 25 mm rod and M20x1.5 thread handle high side loads, ensure an external guide is used for the unsupported travel.
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 SAIJ100AX175-50S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster allows you to shorten the effective travel from the 175 mm nominal stroke down to 125 mm, giving a usable window of 125 to 175 mm. It acts as a travel stop and does not lock the load without live air.
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