Airtac SAIJ160 Adjustable Cylinder SAIJ160X180-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160X180-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 180mm 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
- Stroke180 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160X180-20S
The AirTAC SAIJ160X180-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 180 mm stroke that can be dialed back by up to 20 mm, yielding a usable travel window of 160-180 mm for precise end-position tuning during commissioning. Belonging to the 160 mm bore class, it generates 14074 N of push force at 0.7 MPa and utilizes a robust 40 mm carbon steel rod with an M36x2 thread.
This model includes a magnetic piston (-S) for position detection and uses PT tapered ports. The extruded aluminum barrel features sensor grooves on both sides, allowing you to mount either CMSE reed or DMSE electronic solid-state switches exactly where needed. The rear adjuster acts purely as a travel stop to fine-tune deceleration without swapping the cylinder, while the standard variable air cushions absorb kinetic energy at both ends.
Airtac SAIJ160 Adjustable Cylinder SAIJ160X180-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160X180-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 180 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 SAIJ160X180-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×180 | 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 SAIJ160X180-20S Is Used
Heavy Press Tuning
Dial in the exact 160-180 mm end-position during machine setup to accommodate material thickness variations without swapping out the entire actuator.
Product Changeover
Quickly adjust the rear stopper by up to 20 mm to handle different package sizes on a high-thrust handling line, reducing downtime between production runs.
Assembly Station Setup
Fine-tune the retraction end-point during commissioning of heavy assembly tooling, using the 40 mm carbon steel rod to manage significant mechanical loads.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160X180-20S the Right Cylinder?
Select this 160 mm bore cylinder when an application demands high thrust—delivering 10053 N push at 0.5 MPa—combined with variable end-stop positioning. If your force requirements are lower, stepping down to a 125 mm bore provides 6136 N at 0.5 MPa, whereas moving up to a 200 mm bore yields 15708 N. The adjustable stroke is ideal for product-size changeovers on a line, allowing you to trim the 180 mm stroke back by up to 20 mm without adding external stops or replacing the cylinder.
For an exact ISO 15552 replacement, match the 160 mm bore, 180 mm stroke, PT port thread, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the stroke is 180 mm, the 40 mm rod handles side loads well, but any long unsupported stroke still requires an external guide. Remember that the rear adjuster is a stop, not a lock; for load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder.
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 SAIJ160X180-20S FAQ
At 0.5 MPa, this 160 mm bore cylinder provides 10053 N of push force and 9425 N of pull force. At 0.7 MPa, the push force increases to 14074 N.
The rear adjuster allows you to shorten the 180 mm nominal stroke by up to 20 mm, creating a usable travel window of 160-180 mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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