Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50S
The AirTAC SAIJ160X120-50-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. Equipped with a standard carbon steel rod and a -S magnet for position sensing, it provides a usable travel window of 70 to 120 mm by dialing back the nominal 120 mm stroke up to 50 mm. In the 160 mm bore class, it delivers 10053 N of pull thrust at 0.5 MPa, making it well-suited for heavy-duty positioning tasks.
This adjustable stopper allows you to fine-tune the retract end-position during commissioning or product changeover without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE solid-state switches. It uses a PT tapered port and operates at speeds between 30 and 500 mm/s.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 120 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 SAIJ160X120-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×120 | 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 SAIJ160X120-50S Is Used
Variable End-Stop Positioning
Ideal for heavy machinery requiring precise retract positioning. Dial the stroke back from 120 mm to 70 mm to accommodate different material thicknesses without mechanical modifications.
Machine Setup & Changeover
Speed up production line changeovers by using the 50 mm rear adjustment screw to set new end-stops instantly, avoiding cylinder replacement or external stopper blocks.
Heavy-Duty Clamping
Leverage the 10053 N pull force at 0.5 MPa for large-scale clamping tasks, using the -S magnet and DMSE sensors to confirm clamp completion across variable travel distances.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50S the Right Cylinder?
Choose this 160 mm bore cylinder when your application requires substantial force (10053 N pull at 0.5 MPa) and on-the-fly end-position tuning across a 70 to 120 mm window. If your process needs less force, stepping down to a 125 mm bore yields 5734 N of pull at 0.5 MPa, whereas moving up to a 200 mm bore provides 15080 N of pull. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for true fail-safe load holding, consider the AirTAC SAIL or BSAI series.
For ISO 15552 interchangeability, match the 160 mm bore, 120 mm nominal stroke, 50 mm adjustment range, PT G3/4 port, and -S magnet. The SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options found on some other series. Although the stroke is 120 mm, the robust 40 mm carbon steel rod and M36x2 thread handle high side loads, but any long unsupported travel still requires an external guide.
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 SAIJ160X120-50S FAQ
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 50 mm. This provides a usable travel window of 70 to 120 mm, enabling fine-tuning of the end position without replacing the cylinder.
At a 0.5 MPa operating pressure, the SAIJ160X120-50-S provides 10053 N of pull force and 14074 N of push force. At its maximum 1.0 MPa pressure, it can deliver up to 2050 kgf.
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