Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50 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 SAIJ160X120-50
The AirTAC SAIJ160X120-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 70-120 mm, allowing you to dial back the 120 mm nominal stroke by up to 50 mm. Belonging to the 160 mm bore class, it generates 10053 N of push force and 9425 N of pull force at 0.5 MPa, utilizing a G3/4 port and a 40 mm carbon steel rod with an M36x2 thread.
This adjustable stopper enables precise end-position tuning during commissioning or product changeovers without swapping the cylinder or adding external stops. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster acts strictly as a travel stop, not a load lock.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50 |
|---|---|
| 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 SAIJ160X120-50
| 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 SAIJ160X120-50 Is Used
Product Changeover Stops
Dial in the 70-120 mm travel window during line changeovers to accommodate different package sizes without physically swapping out the pneumatic cylinder.
End-Position Tuning
Fine-tune the retract end-stop during machine commissioning to perfect seating force, using the rear screw to absorb mechanical variance rather than adding external stoppers.
Heavy Forming Operations
Leverage the 10053 N of thrust at 0.5 MPa for pressing or heavy-duty assembly tasks, adjusting the travel distance to suit varying material thicknesses.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X120-50 the Right Cylinder?
Select this 160 mm bore model when an application requires heavy thrust (10053 N at 0.5 MPa) and on-the-fly stroke trimming. If you need less force, stepping down to the 125 mm bore yields 6136 N of push force. The 50 mm adjustment range is ideal for variable end-stops across different product sizes on the same line. Unlike a fixed-stroke SAI cylinder, this model fine-tunes the retract position mechanically. To match this ISO 15552 footprint exactly, specify the 160 mm bore, 120 mm stroke, 50 mm adjustment, PT tapered port, and standard carbon steel rod without a magnet. Because the stroke is 120 mm, an external guide is not strictly required, but the robust 40 mm rod helps manage side loads.
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 SAIJ160X120-50 FAQ
The rear adjuster acts as a mechanical stopper that lets you shorten the effective travel from the 120 mm nominal stroke down to 70 mm. It only sets the travel end and does not lock or hold the load without live air pressure; for load-holding, consider a SAIL or BSAI cylinder.
At 0.5 MPa, it provides 10053 N of push force and 9425 N of pull force, reaching up to 18095 N of push force at 0.9 MPa. The operational speed range is 30-500 mm/s.
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