Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 165mm 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
- Stroke165 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40S
The AirTAC SAIJ100X165-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without adding external stops. With a nominal 165 mm stroke and a 40 mm adjustment range, it provides a usable travel window of 125 to 165 mm. This bore size delivers substantial thrust, pushing 5497 N at 0.7 MPa and pulling 3681 N, making it well-suited for heavy-duty positioning tasks.
Configured for demanding environments, this model utilizes a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. The integrated sensor grooves on both sides of the extruded aluminum barrel accept AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop to decelerate and set the end position; it does not hold the load without live air pressure, so a SAIL or BSAI lock cylinder is required for fail-safe load holding.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 165 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 SAIJ100BX165-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×165 | 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 SAIJ100BX165-40S Is Used
Press Depth Tuning
Dial in the exact 125 to 165 mm compression distance during machine setup or product changeover without swapping out the entire cylinder or adding external mechanical stops.
Variable End-Stop Positioning
Use the 40 mm rear adjustment screw to fine-tune the retract end position on the fly, accommodating varying material thicknesses or tooling heights on an automated line.
Heavy-Duty Assembly Stations
Leverage the 5497 N push force at 0.7 MPa to drive heavy components into place, relying on the SUS304 rod for corrosion resistance in industrial environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-40S the Right Cylinder?
Choose this 100 mm bore when an application requires high force combined with variable end positioning, such as a 165 mm stroke press that needs precise 125-165 mm depth tuning during product changeovers. If your setup needs less force, stepping down to an 80 mm bore yields 3518 N of push force at 0.7 MPa, whereas moving up to a 125 mm bore provides 8590 N. Because the 165 mm stroke is under the 300 mm side-load threshold, external guiding is less critical here than on longer strokes, though the robust 25 mm rod and M20x1.5 thread handle standard stresses well.
When specifying an ISO 15552 replacement, match the 100 mm bore, 165 mm stroke, 40 mm adjustment, PT tapered port threads, and the -S magnet option. Remember that SAIJ uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. The cylinder operates at speeds of 30-800 mm/s, and the standard variable air cushions at both ends work alongside the rear stopper to manage end-of-stroke impact.
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 SAIJ100BX165-40S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf of push force.
The rear adjuster screw lets you shorten the effective travel from the nominal 165 mm stroke down to 125 mm, creating a 125-165 mm usable window. It acts as a mechanical stop to tune the end position at commissioning, but it is not a lock and will not hold the load without continuous air pressure.
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