Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-75
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-75 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 SAIJ160X120-75
The AirTAC SAIJ160X120-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust thrust up to 18095N at 0.9 MPa. It features a carbon steel piston rod and PT tapered port threads. The integrated rear stopper allows you to fine-tune the effective travel window down from a 120 mm nominal stroke to a minimum of 45 mm, providing immense flexibility during machine commissioning.
This adjustable travel capacity eliminates the need to swap entire cylinders or bolt on external stops when adapting to new product dimensions. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback, while the robust M36x2 rod thread handles high side-loading stresses inherent to heavy-duty movements.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-75 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-75 |
|---|---|
| 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 SAIJ160X120-75
| 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 SAIJ160X120-75 Is Used
Product Size Changeover
Quickly dial in the stroke from 120 mm down to 45 mm using the rear adjuster to accommodate varying material widths on a packaging line without changing the cylinder.
Heavy-Duty Forming
Leverage the 18095N push force at 0.9 MPa for powerful pressing or forming operations, fine-tuning the exact end-stop position during initial machine setup.
Adjustable End Stops
Use the 75 mm adjustment window to vary the retract position dynamically on heavy machinery, ensuring precise mechanical positioning without external stopper blocks.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-75 the Right Cylinder?
Selecting this 160 mm bore model is ideal when your application demands high force, as it provides 14074N of push force at 0.7 MPa, stepping up significantly from the 100 mm bore which yields 5497N. The 75 mm adjustment range is specifically valuable for packaging or forming lines that undergo frequent product-size changeovers, allowing operators to dial in the exact 45 to 120 mm end-position without mechanical rebuilds. For applications requiring positive load holding without live air pressure, a standard SAIJ is insufficient as the rear screw acts only as a travel stop, not a lock; consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, verify the 160 mm bore, 120 mm nominal stroke, 75 mm adjustment requirement, PT port threads, and mounting style. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, deliberately omitting FB, CA, CB, and CR options. Because the 120 mm stroke is relatively short for this large bore, external side-load guides are less critical here than with longer strokes, but alignment should still be maintained.
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 SAIJ160X120-75 FAQ
It features a rear mechanical stopper that allows you to trim the effective travel. For this model, you can reduce the 120 mm nominal stroke by up to 75 mm, creating an adjustable travel window between 45 mm and 120 mm without replacing the cylinder.
At an operating pressure of 0.9 MPa, the SAIJ160X120-75 provides a push force of 18095N and a pull force of 9425N. It can deliver a maximum push force of 10053N at 0.5 MPa.
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