Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-40 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 SAIJ100BX175-40
The AirTAC SAIJ100X175-40 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 175 mm stroke that can be fine-tuned down by up to 40 mm, giving an effective usable travel window of 135 to 175 mm. This allows precise end-position calibration at commissioning without swapping out the entire unit.
Built with a SUS304 stainless steel rod, it delivers 3927 N of push force at 0.5 MPa and utilizes a G1/2 port. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later. The rear screw acts purely as a travel stop for deceleration, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-40 |
|---|---|
| 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 SAIJ100BX175-40
| 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 SAIJ100BX175-40 Is Used
Product Changeovers
Dial in the 135-175 mm travel window during format size changes on packaging lines without adding external mechanical stops.
End-Position Tuning
Fine-tune the retract stroke by up to 40 mm during machine commissioning to achieve precise contact forces on heavy press operations.
Heavy Assembly Lines
Leverage the 3927 N push force at 0.5 MPa to move substantial pallets, using the rear stop to set exact insertion depths.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-40 the Right Cylinder?
Select this 100 mm bore when you need heavy thrust up to 3927 N at 0.5 MPa, or step down to an 80 mm bore providing 2513 N if payload requirements are lighter. The adjustable 135-175 mm window is ideal for product changeovers on a line, replacing fixed-stroke SAI cylinders when exact end-stops must be dialed in on the fly. If your machine requires true load-holding without air pressure, consider the SAIL or BSAI locking variants instead.
For a direct ISO 15552 replacement match, specify a 100 mm bore, 175 mm stroke, 40 mm adjustment, PT tapered port threads, and SUS304 (B) rod material. Since this unit lacks a magnet, position sensing is unavailable unless a -S variant is specified. With a 175 mm stroke, side loads are moderate, but always ensure external guiding for optimal rod bearing life.
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 SAIJ100BX175-40 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 screw allows you to shorten the 175 mm nominal stroke by up to 40 mm, creating a usable travel window of 135 to 175 mm. The adjuster acts as a mechanical stop and does not lock the load without live air.
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