Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-75S 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 SAIJ100BX165-75S
The AirTAC SAIJ100X165-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that provides a usable travel window of 90-165 mm from its 165 mm nominal stroke. Delivering 3927 N of push force and 3681 N of pull force at 0.5 MPa, it handles heavy-duty positioning tasks with precision. The extruded aluminum barrel includes sensor grooves on both sides, and this -S variant includes a magnet for position detection.
Equipped with a SUS304 stainless steel rod (option B) for superior corrosion resistance, it utilizes PT tapered port threads (G1/2) for secure pneumatic connections. The rear adjusting screw acts as a mechanical stop to dial in the retract end-position during commissioning without adding external stops. It is important to note that this adjuster is not a locking device; the cylinder cannot hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-75S |
|---|---|
| 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 SAIJ100BX165-75S
| 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 SAIJ100BX165-75S Is Used
Product Changeover Dial-In
Quickly adjust the retract end-stop from 90 to 165 mm during production line changeovers to accommodate different product sizes without disassembling the machinery.
Heavy Press Positioning
Leverage 3927 N of thrust at 0.5 MPa to securely press heavy components, using the fine adjustment screw to dial in the exact bottoming position during commissioning.
Machine Setup Calibration
Eliminate mechanical shims during initial machine build by using the 75 mm rear stopper window to perfectly set the retracted home position for heavy-duty actuators.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX165-75S the Right Cylinder?
Selecting this 100 mm bore adjustable-stroke cylinder makes sense when an application requires 3927 N of thrust at 0.5 MPa but needs flexibility in the final end-of-stroke position, a task that would otherwise require physically swapping a fixed-stroke SAI cylinder. If your application demands less force, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa. For load-holding without continuous live air pressure, this standard SAIJ is insufficient; consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 165 mm stroke, 75 mm adjustment range, PT port threads, and the -S magnet requirement. The SAIJ mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 accessories, deliberately omitting FB, CA, CB, and CR brackets. Because the 25 mm piston rod and M20x1.5 rod thread provide substantial side-load capacity, this cylinder is well-suited for guided heavy loads, though unsupported strokes approaching 300 mm or more still require external guidance.
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 SAIJ100BX165-75S FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. The recommended operational speed range is 30-800 mm/s.
The rear adjuster screw acts as a mechanical stop that lets you trim the 165 mm nominal stroke back by up to 75 mm, providing an adjustable travel window of 90-165 mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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