Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-40S
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX185-40S 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 SAIJ160BX185-40S
The AirTAC SAIJ160X185-40-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. By turning the rear adjusting screw, you can fine-tune the effective travel window from 145 to 185 mm, which is ideal for dialing in exact end positions during machine commissioning without swapping out the barrel.
This specific SKU is built with a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. It uses PT tapered G3/4 ports, operates at 30-500 mm/s, and features an extruded aluminum barrel with sensor grooves on both sides. The rear adjuster functions strictly as a travel stop for deceleration, not as a lock, meaning it cannot hold a load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-40S |
|---|---|
| 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 SAIJ160BX185-40S
| 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 SAIJ160BX185-40S Is Used
Product Changeover Tuning
Quickly dial the stroke back from 185 mm to 145 mm via the rear stopper when switching a production line to a shorter product format, avoiding mechanical teardown.
Corrosive Environment Actuation
The SUS304 stainless steel rod and adjustable travel window make it suitable for heavy-duty machinery in food or chemical processing where exact stops and rust prevention are critical.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-40S the Right Cylinder?
Choose this 160 mm bore when an application requires heavy thrust between the 125 mm bore (6136 N at 0.5 MPa) and the 200 mm bore (15708 N at 0.5 MPa). The adjustable 40 mm window is selected over a fixed-stroke SAI when you need variable end-stops for product size changeovers or precise end-position tuning on the fly. For load-holding requirements without continuous air pressure, this cylinder will not suffice; you should look at the SAIL (air-released lock) or BSAI (clamp-lock) series, or utilize an external rod lock.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 185 mm stroke, 40 mm adjustment range, PT G3/4 port thread, and the -S magnet requirement. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets. Since the 185 mm stroke approaches the mid-range for this bore, ensure external guiding is used if the load generates high side-loading forces on the 40 mm rod.
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 SAIJ160BX185-40S FAQ
At 0.9 MPa, the push force increases to 18095 N.
The rear adjusting screw acts as a mechanical stopper that lets you shorten the 185 mm nominal stroke by up to 40 mm, creating a usable travel window of 145 to 185 mm. It only sets the end position and does not lock the load without live air.
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