Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50
The AirTAC SAIJ160X155-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This creates a usable stroke window of 105 to 155 mm, enabling precise end-position tuning at commissioning without swapping out the barrel or adding external stops. It delivers a robust push force of 14074 N at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
This bore uses a 40 mm carbon steel rod with an M36x2 thread, providing high rigidity and excellent resistance to side loads, though long strokes still require an external guide. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified here, you would add the -S option to use CMSE reed or DMSE electronic solid-state sensors. It features variable air cushions at both ends with a 50 mm cushion length to absorb kinetic energy, and the PT tapered port threads ensure a tight pneumatic seal.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 155 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 SAIJ160X155-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×155 | 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 SAIJ160X155-50 Is Used
Changeover Adjustment
Dial in the 105-155 mm travel window during product size changeovers on heavy packaging lines without disassembling the actuator.
Heavy Pressing
Apply up to 14074 N of push force at 0.7 MPa for assembly presses, utilizing the 50 mm cushion length to soften end-of-stroke impacts.
Variable End Stops
Fine-tune the retract position of heavy material handling gantries using the rear stopper screw, avoiding the need for external mechanical stops.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-50 the Right Cylinder?
Choose this 160 mm bore when you need substantial thrust—14074 N at 0.7 MPa or 10053 N at 0.5 MPa—for heavy fixtures. If your application requires less force, stepping down to a 125 mm bore yields 8590 N at 0.7 MPa, whereas moving up to a 200 mm bore provides 21991 N at 0.7 MPa. The adjustable stroke is ideal for machines running multiple product sizes, as you can dial in the exact 105-155 mm travel window during changeovers rather than machining new hard stops.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 155 mm stroke, 50 mm adjustment range, PT port thread, and your required mounting accessory from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, or TCM2; note that FB, CA, CB, and CR are omitted). Remember that the rear adjuster acts only as a travel stop and cannot hold a load without live air pressure; for true pneumatic locking, consider the SAIL or BSAI series instead. Since the 155 mm stroke is under 300 mm, side-load stress on the 40 mm rod is manageable, but external guidance is always recommended for heavy off-center 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 SAIJ160X155-50 FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder generates a push force of 14074 N and a pull force of 14074 N. At the maximum operating pressure of 1.0 MPa, it can deliver up to 18095 N of push force.
The rear adjuster screw allows you to shorten the nominal 155 mm stroke by up to 50 mm, providing an adjustable travel window of 105 to 155 mm. This stopper only sets the end position and does not lock the load without live air pressure.
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