Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-20S 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 SAIJ100BX175-20S
The AirTAC SAIJ100X175-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 155 to 175 mm, allowing you to dial back the nominal 175 mm stroke by up to 20 mm during commissioning. In this B-coded configuration, the piston rod is crafted from SUS304 stainless steel, offering superior corrosion resistance for harsh or washdown environments. The cylinder accepts PT tapered port threads and includes a magnet for solid-state DMSE or reed CMSE sensor integration.
Delivering substantial thrust, this 100 mm bore unit generates 3927 N of push force and 3681 N of pull force at 0.5 MPa, scaling up to 7068 N push at 0.9 MPa. The adjustable rear stopper acts purely as a travel end deceleration device and does not hold the load without live air pressure; for true load-holding without supply pressure, consider the SAIL or BSAI series. The extruded aluminum barrel features sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-20S |
|---|---|
| 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 SAIJ100BX175-20S
| 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 SAIJ100BX175-20S Is Used
Machine Changeover
Fine-tune the retract end position by up to 20 mm during product size changes without swapping the cylinder or adding external stops.
Corrosive Pressing
Leverage the 3927 N push force and SUS304 stainless rod for heavy pressing and forming tasks in washdown or chemically exposed settings.
Adjustable End Stops
Dial in the exact 155 to 175 mm travel window during machine setup to accommodate varying material thicknesses on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX175-20S the Right Cylinder?
Choose this 100 mm bore model when your application requires heavy pushing capacity within a 155-175 mm adjustable travel window. If you need slightly less force, stepping down to an 80 mm bore yields 2513 N of push at 0.5 MPa. Conversely, moving up to a 125 mm bore provides 6136 N. The rear adjuster screw is ideal for product changeovers, letting you fine-tune the retract end position without swapping cylinders or bolting on external stops. Because this is a standard 175 mm stroke, no external guide is strictly required, but the 25 mm rod diameter handles moderate side loads well.
When replacing an ISO 15552 cylinder, match these exact parameters: 100 mm bore, 175 mm nominal stroke, 20 mm adjustment range, PT port threads, and the -S magnet for CMSE/DMSE sensors. Remember that the SAIJ mounting set omits FB, CA, CB, and CR brackets, so verify your existing bracket falls under Basic, FA, LB, TC, FTC, TCM1, or TCM2.
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 SAIJ100BX175-20S FAQ
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the effective stroke from 175 mm down to as little as 155 mm. This creates a 20 mm tuning window for precise end-position setup without changing the cylinder itself.
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