Airtac SAIJ160 Adjustable Cylinder SAIJ160X140-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X140-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 140mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke140 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X140-20S
The AirTAC SAIJ160X140-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 120 to 140 mm for precise end-position tuning. Built with a 160 mm bore, it delivers a substantial 14074 N of push force at 0.7 MPa. The extruded aluminum barrel features sensor grooves on both sides, and because this SKU includes the -S magnet, it interfaces directly with AirTAC CMSE reed and DMSE electronic solid-state switches.
This model utilizes a robust 40 mm carbon steel rod with an M36x2 thread, paired with 50 mm variable air cushions at both ends to manage high kinetic energy. The rear adjuster acts purely as a mechanical stop to dial in the retract position during commissioning; it is not a locking device and cannot hold a load without continuous live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X140-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X140-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 140 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160X140-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×140 | 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 SAIJ160 Adjustable Cylinder SAIJ160X140-20S Is Used
Press Stroke Calibration
Dial in the exact 120-140 mm retract position during machine commissioning to accommodate different material thicknesses without swapping out the entire cylinder.
Product Changeover
Quickly adjust the end-stop for a new product size on a high-force assembly line, leveraging the 14074 N push force to handle heavy components securely.
Heavy Clamping Fixtures
Use the fine-tuned end position to clamp large parts precisely, relying on the robust 40 mm carbon steel rod to maintain rigidity under demanding loads.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X140-20S the Right Cylinder?
Selecting this 160 mm bore cylinder makes sense when your application requires the 10053 N pull force at 0.5 MPa and the ability to fine-tune the retract distance on the fly without adding external stops. If your setup needs less force, stepping down to a 125 mm bore yields 6136 N push at 0.5 MPa, whereas moving up to a 200 mm bore provides 15708 N. For exact ISO 15552 dimensional interchangeability, match the 140 mm stroke, 20 mm adjustment range, PT tapered port threads, and the -S magnet option.
Because the nominal stroke of 140 mm is below the 300 mm threshold, external side-load guides are less critical than on longer strokes, though the heavy 40 mm rod still handles significant offset loads. If your process demands true load-holding without live air, consider the SAIL pneumatic lock or BSAI clamp-lock series instead of relying on this adjuster. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR rear configurations.
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 SAIJ160 Adjustable Cylinder SAIJ160X140-20S FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 20 mm, creating a usable travel window of 120 to 140 mm. It functions as a mechanical stop for end-position tuning at commissioning and is not a lock, meaning the cylinder requires live air to maintain its position.
At an operating pressure of 0.7 MPa, the SAIJ160X140-20-S generates a push force of 14074 N and a pull force of 9425 N. It can achieve a maximum push force of 18095 N at 0.9 MPa.
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