Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20 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 SAIJ100AX165-20
The AirTAC SAIJ100X165-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 145-165 mm usable travel window, allowing you to dial back the 165 mm nominal stroke by up to 20 mm. This bore size delivers 3927 N of push force at 0.5 MPa and 5497 N at 0.7 MPa, making it suited for heavy-duty positioning.
Equipped with a SUS420J2 stainless steel rod (option A) and PT tapered port threads, it offers excellent corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides. You can fit AirTAC CMSE reed or DMSE electronic sensors if position feedback is needed later. The rear adjuster acts purely as a travel stop to fine-tune end positions, not as a load-holding lock.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20 |
|---|---|
| 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 SAIJ100AX165-20
| 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 SAIJ100AX165-20 Is Used
Machine Changeover
Dial in the 145-165 mm travel window during product size changes without physically swapping the actuator or adding external stopper blocks.
Heavy Positioning
Leverage the 5497 N push force at 0.7 MPa to move heavy pallets or tooling carriages into their exact final mechanical positions.
Assembly End-Stops
Fine-tune the retraction end position during commissioning to perfectly seat parts, using the rear screw rather than re-shimming the mount.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX165-20 the Right Cylinder?
Select this 100 mm bore cylinder when your application requires substantial thrust, stepping up from a 63 mm bore that offers 1559 N push force at 0.5 MPa. The adjustable stroke is highly beneficial for product changeovers, letting you set variable end-stops on the fly without swapping cylinders or adding external stops. For load-holding without live air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is a stop, not a brake.
This model is dimensionally interchangeable per ISO 15552. To match this replacement, verify the 100 mm bore, 165 mm stroke, 20 mm adjustment range, PT port threads, and the standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). At 165 mm stroke, side loads are minimal, but always ensure the piston rod is properly guided to prevent binding.
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 SAIJ100AX165-20 FAQ
A rear external stopper screw lets you trim the effective stroke by up to 20 mm, creating a usable travel window of 145 to 165 mm. It sets the end position mechanically but does not lock the load without live air pressure.
At 0.5 MPa operating pressure, it provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
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Standard models usually ship in 3-4 days.
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