Airtac SAIJ160 Adjustable Cylinder SAIJ160AX75-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX75-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX75-20S
The AirTAC SAIJ160X75-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the retract end-position. With a 75 mm nominal stroke and a 20 mm adjustment range, it provides a usable travel window of 55-75 mm, enabling exact end-stop calibration during commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
Delivering substantial thrust, this 160 mm bore unit generates 9425 N of pull force at 0.5 MPa and up to 18095 N at 0.9 MPa. The piston rod is constructed from SUS420J2 stainless steel (material code A), offering high corrosion resistance, and uses an M36x2 thread with a PT tapered port. It features variable air cushions at both ends to manage deceleration, but note that these components only stop and dampen the travel; they do not hold the load without continuous live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX75-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX75-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 75 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 SAIJ160AX75-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×75 | 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 SAIJ160AX75-20S Is Used
Machine Setup Calibration
Dial in the exact 55-75 mm travel window during initial commissioning to perfect end-positioning without machining external stop blocks.
Product Size Changeovers
Quickly adjust the retract stop on packaging lines when switching between different product sizes, minimizing machine downtime.
High-Force Positioning
Leverage the 18095 N push force at 0.9 MPa to move heavy assemblies while retaining the ability to fine-tune the final end-stop location.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX75-20S the Right Cylinder?
Choose this adjustable-stroke model when an application requires variable end-stop positioning or frequent product-size changeovers, rather than relying on a fixed-stroke SAI cylinder. If you need less force, stepping down to a 125 mm bore yields 5734 N of pull force at 0.5 MPa, whereas stepping up to a 200 mm bore provides 15080 N. For any load-holding requirements without live air pressure, this cylinder is insufficient; the rear adjuster is a mechanical stop, not a lock, so you should instead select an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder.
To replace an ISO 15552 cylinder with this SKU, match the 160 mm bore, 75 mm stroke, 20 mm adjustment range, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, intentionally omitting FB, CA, CB, and CR brackets. Although the 75 mm stroke is relatively short for this large bore, the robust 40 mm SUS420J2 rod and M36x2 thread provide excellent rigidity and side-load resistance, though an external guide is always recommended for heavy radial 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 SAIJ160AX75-20S FAQ
At a 0.5 MPa operating pressure, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. At 0.9 MPa, the push force increases to 18095 N.
The rear adjuster screw allows you to mechanically shorten the nominal 75 mm stroke by up to 20 mm, creating a usable travel window of 55-75 mm. This stopper fine-tunes the end position but does not lock or hold the load without continuous air pressure.
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