Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 185mm 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
- Stroke185 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-20S
The AirTAC SAIJ160X185-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 165-185 mm. Built with a robust 40 mm carbon steel rod and M36x2 threading, it delivers 14074 N of push force at 0.7 MPa. The integrated -S magnet enables precise position tracking using AirTAC CMSE reed or DMSE electronic solid-state sensors housed within the dual-side barrel grooves.
This adjustable-stroke design allows technicians to fine-tune the retract end-position during commissioning without adding external stops or swapping the cylinder. Fluid control utilizes a PT tapered G3/4 port, while the extruded aluminum profile maintains standard ISO 15552 mounting interface dimensions. The rear adjuster functions strictly as a travel stop for deceleration alongside the variable air cushions, not as a load-holding lock.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 185 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 SAIJ160X185-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×185 | 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 SAIJ160X185-20S Is Used
Heavy Press Tuning
Dial in the exact 165-185 mm end-stop during machine commissioning to accommodate varying material thicknesses without changing the cylinder.
Product Changeover
Rapidly adjust the retract position on a production line when switching between different product sizes, leveraging the 20 mm trim range.
Pallet Positioning
Fine-tune the stopping point of heavy pallets using the rear adjuster, relying on the 14074 N push force at 0.7 MPa for reliable handling.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X185-20S the Right Cylinder?
Select this 160 mm bore when an application requires heavy thrust—such as 14074 N push at 0.7 MPa—combined with a 165-185 mm adjustable travel window for product size changeovers. If your setup needs less force, stepping down to a 125 mm bore yields 8590 N at 0.7 MPa; stepping up to a 200 mm bore provides 21991 N. Because the stroke is 185 mm, an external guide is recommended to manage side-load on the long, unsupported rod. To replace an ISO 15552 cylinder, match the 160 mm bore, 185 mm nominal stroke, -20 adjustment, PT G3/4 port, and -S magnet.
The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. If the machine requires holding a load without live air pressure, this cylinder's stop screw will not suffice; you must use a SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock. Operating speed for this bore size is rated at 30-500 mm/s.
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 SAIJ160X185-20S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. It can deliver a maximum push force of 18095 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the 185 mm nominal stroke by up to 20 mm, creating a usable travel window of 165-185 mm. This stopper sets the end position and works with the air cushion for deceleration, but it does not lock the load without live air pressure.
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