Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-50S
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX185-50S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ160 mm
- Stroke185 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-50S
The AirTAC SAIJ160X185-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear mechanical adjuster. It provides a nominal 185 mm stroke that can be dialed back by up to 50 mm, yielding a precise 135-185 mm usable travel window for commissioning flexibility.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and ships with a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The rear screw acts purely as a travel stop to fine-tune the retract position without swapping cylinders; it is not a locking device and will not hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-50S |
|---|---|
| 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-50S
| 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 SAIJ160BX185-50S Is Used
Product Changeover
Dial in the 135-185 mm travel window during format changes on a packaging line, accommodating different carton sizes without swapping the actuator.
Heavy Press Tuning
Fine-tune the retract end-position on a 14074 N pressing operation to avoid over-travel and crush damage during initial machine commissioning.
Corrosive Assembly
Leverage the SUS304 stainless steel rod for heavy-duty assembly tasks in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-50S the Right Cylinder?
Choose the SAIJ adjustable-stroke format over a fixed SAI model when you need to accommodate product size changeovers or fine-tune the end position during machine setup without adding external stops. To replace an ISO 15552 cylinder, match the 160 mm bore, 185 mm stroke, 50 mm adjustment, PT tapered port thread, and the -S magnet requirement.
Because the 185 mm stroke is relatively short for this large bore, side-load risks are minimal, but the 40 mm rod diameter still requires proper alignment. For applications requiring true load-holding without continuous air pressure, pair this cylinder with an external pilot-operated check valve or select the AirTAC SAIL or BSAI locking cylinder series instead. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ160BX185-50S FAQ
The rear adjuster screw allows you to shorten the 185 mm nominal stroke by up to 50 mm, providing a usable travel window of 135 to 185 mm. This stopper only sets the end position; it does not lock the load without live air pressure.
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