Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 170mm 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
- Stroke170 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20
The AirTAC SAIJ100X170-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 150-170mm usable travel window, allowing you to dial back the 170mm nominal stroke by up to 20mm during machine commissioning without adding external stops. Delivering 3927N of push force at 0.5MPa, it suits heavy-duty positioning tasks.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and carries PT tapered port threads. The extruded aluminum barrel includes dual sensor grooves for mounting CMSE reed or DMSE electronic switches. Mounting options span Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles found on some standard variants.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 170 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 SAIJ100BX170-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×170 | 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 SAIJ100BX170-20 Is Used
Machine Changeover Tuning
Fine-tune the 150-170mm travel window during product size changes to set precise end positions without physically swapping the cylinder.
Heavy-Duty Positioning
Leverage the 3927N push force at 0.5MPa to move substantial masses along a conveyor or assembly line with adjustable end-stops.
Corrosive Environment Actuation
Utilize the SUS304 stainless steel rod for reliable performance in washdown or mildly corrosive manufacturing settings.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-20 the Right Cylinder?
Choose this 100mm bore when an 80mm bore falls short—its 2513N push force at 0.5MPa is insufficient, but the 100mm bore delivers 3927N. The adjustable stroke is ideal for product changeovers where the exact end-of-travel position shifts slightly, eliminating the need to physically swap out a fixed-stroke SAI cylinder. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For pneumatic load-holding, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 100mm bore, 170mm stroke, 20mm adjustment range, PT port threads, and the specific mounting interface. Because the stroke is under 300mm, side-load concerns are minimal, but the 25mm rod diameter handles standard lateral stresses effectively. No magnet is specified, so position sensing requires adding external sensors or confirming a -S variant if needed.
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 SAIJ100BX170-20 FAQ
At 0.5MPa operating pressure, it provides 3927N of push force and 3681N of pull force. At the maximum operating pressure of 1.0MPa, the push force reaches 801kgf.
A rear screw stopper allows you to shorten the effective stroke by up to 20mm, creating a 150-170mm usable travel window. This stopper only sets the end position; it does not lock or hold the load without continuous air pressure.
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