Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-100
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 185mm 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
- Stroke185 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-100
The AirTAC SAIJ100X185-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates an 85 to 185 mm usable travel window. Delivering 3927 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads.
The rear adjustment screw allows you to fine-tune the retract end position during commissioning without adding external stops. It utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. The adjuster acts strictly as a travel stop, meaning it will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-100 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 185 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 SAIJ100BX185-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×185 | 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 SAIJ100BX185-100 Is Used
Machine Changeover
Dial in the exact retract position within the 85-185 mm window when switching between product sizes on a packaging line.
End-Stop Tuning
Fine-tune the final end position during machine commissioning without swapping the cylinder or adding external mechanical stops.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or corrosive manufacturing settings.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX185-100 the Right Cylinder?
Choose this 100 mm bore cylinder when you need higher force than an 80 mm unit provides (2513 N at 0.5 MPa) but less than a 125 mm bore (6136 N). The 100 mm adjustment range is ideal for machines requiring rapid product-size changeovers, replacing fixed-stroke SAI cylinders with a highly adaptable end-stop. For load-holding without continuous air pressure, select a SAIL or BSAI series cylinder instead. When replacing an ISO 15552 cylinder, match the 100 mm bore, 185 mm stroke, PT ports, and mounting style; add a -S suffix if position feedback via CMSE reed or DMSE electronic sensors is required.
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 SAIJ100BX185-100 FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push thrust and 3681 N of pull thrust. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 185 mm down to 85 mm. This provides a 100 mm tuning window for precise end-position configuration.
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