Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-20S 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 SAIJ160X155-20S
The AirTAC SAIJ160X155-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers substantial thrust, providing 14074N push force at 0.7 MPa, making it suited for heavy-duty positioning tasks. The integrated -S magnet enables direct mounting of CMSE reed and DMSE electronic solid-state sensors along the dual-side barrel grooves for precise end-of-stroke detection.
This specific configuration features a 155 mm nominal stroke that can be fine-tuned backward by up to 20 mm via the rear stopper screw, creating a 135-155 mm usable travel window. The standard carbon steel rod with an M36x2 thread handles high side loads well, while the PT tapered port threads ensure a robust pneumatic connection. The rear adjuster functions purely as a mechanical travel stop to dial in exact end positions during machine commissioning without swapping out the cylinder.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-20S |
|---|---|
| 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 SAIJ160X155-20S
| 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 SAIJ160X155-20S Is Used
Heavy Press Fine-Tuning
Dial in the exact 135-155 mm retract distance during heavy press setups to accommodate varying material thicknesses without changing the cylinder.
Automated Line Changeover
Adjust the end-stop on the fly during product size transitions on a packaging line, utilizing the 20 mm trim window to set new positions rapidly.
High-Force Positioning
Leverage the 14074N push force to move heavy jigs into place, relying on the rear screw to perfectly align the final resting position.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X155-20S the Right Cylinder?
Choose this 160 mm bore cylinder when your application requires up to 14074N of thrust at 0.7 MPa and demands precise end-position tuning. The 20 mm rear adjustment window allows operators to dial in the exact retract distance during product changeovers, avoiding the need to bolt on external physical stops or maintain a massive inventory of custom-stroke cylinders. If your process requires less force, stepping down to a 125 mm bore yields 8590N of push force at the same pressure, whereas larger loads up to 21991N necessitate moving to a 200 mm bore.
Because this unit features a 155 mm stroke, it does not require external guide rails to prevent rod side-loading, unlike standard strokes of 300 mm or more. Remember that the rear adjuster acts solely as a travel stop and does not hold the load in the event of air pressure loss. For true load-holding without live air, consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder series instead. This SAIJ model uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets. It is dimensionally interchangeable per ISO 15552 standards.
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 SAIJ160X155-20S FAQ
The rear of the cylinder features an external stopper screw that allows you to shorten the effective stroke by up to 20 mm. This creates a usable travel window of 135-155 mm, letting you fine-tune the end position at commissioning without adding external stops.
At an operating pressure of 0.7 MPa, the SAIJ160X155-20-S provides a push force of 14074N and a pull force of 9425N. It can deliver a maximum push force of 18095N at 0.9 MPa.
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