Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-40 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 SAIJ100BX170-40
The AirTAC SAIJ100X170-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 130-170 mm usable travel window, letting you dial back the 170 mm nominal stroke by up to 40 mm during commissioning. Delivering 5497 N of push force at 0.7 MPa, it is built with a SUS304 stainless steel rod for corrosion resistance.
The rear adjuster acts purely as a mechanical stop to fine-tune the end position without adding external stops, while the adjustable air cushions handle deceleration. It is not a locking device and will not hold a load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-40 |
|---|---|
| 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 SAIJ100BX170-40
| 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 SAIJ100BX170-40 Is Used
Machine Changeover
Dial in the exact 130-170 mm end position during product size changes without swapping the cylinder or bolting on external stops.
Variable End Stops
Fine-tune the retract position on the fly to accommodate varying material thicknesses in pressing or clamping stations.
Commissioning Adjustments
Trim the effective travel by up to 40 mm during setup to clear mechanical interference and optimize cycle timing.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX170-40 the Right Cylinder?
Choose this 100 mm bore when you need substantial thrust, such as 5497 N push at 0.7 MPa, but want the flexibility to trim the travel down to 130 mm for product changeovers. If your application requires less force, stepping down to an 80 mm bore yields 3518 N push at 0.7 MPa. Because the 170 mm stroke is under 300 mm, side-load risks are minimal, but the robust 25 mm rod and M20x1.5 thread handle standard loads well.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 170 mm stroke, 40 mm adjustment, PT tapered port threads, and standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that SAIJ omits FB, CA, CB, and CR mounts. Without a -S magnet, this model does not support CMSE or DMSE sensors.
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 SAIJ100BX170-40 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. It can reach a maximum of 801 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the 170 mm nominal stroke by up to 40 mm, creating a 130-170 mm usable travel window. The adjuster functions as a mechanical stop and does not lock the load without live air pressure.
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