Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 55mm 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
- Stroke55 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20S
The AirTAC SAIJ160X55-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling precise end-position tuning without adding external stops. It provides a usable travel window of 35 to 55 mm, letting you dial in the exact retract distance during commissioning. Built to deliver substantial thrust, it generates 18095 N of push force and 9425 N of pull force at a 0.9 MPa operating pressure.
This specific SKU features a SUS304 stainless steel piston rod (option B) for superior corrosion resistance in harsh environments. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors for position feedback. It uses PT tapered ports sized at G3/4 and supports a speed range of 30-500 mm/s.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 55 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 SAIJ160BX55-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×55 | 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 SAIJ160BX55-20S Is Used
Heavy Pressing
Dial in the exact 35-55 mm pressing depth for heavy-duty assembly operations without swapping cylinders or adding external mechanical stops.
Product Changeover
Quickly adjust the retract end-position on automated lines during product size transitions, using the rear stopper to set new travel limits.
Corrosive Testing
Leverage the SUS304 stainless steel rod and 18095 N output for robust actuation in chemically harsh or washdown testing environments.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX55-20S the Right Cylinder?
Choose this 160 mm bore when an 80 mm bore (yielding 4523 N push at 0.9 MPa) is insufficient for heavy pressing or clamping, but a 200 mm bore is physically too large. The adjustable stroke is ideal for product changeovers on a line, allowing operators to fine-tune the 35-55 mm travel window quickly. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air. For fail-safe load holding, select the SAIL (air-released lock) or BSAI (clamp-lock) series instead.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 55 mm nominal stroke, 20 mm adjustment range, PT G3/4 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the stroke is short, side-loading is minimal, but the robust 40 mm rod and M36x2 thread handle high mechanical stress well.
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 SAIJ160BX55-20S FAQ
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the nominal 55 mm stroke by up to 20 mm. This creates a usable travel window of 35 to 55 mm, which is set during commissioning without altering the cylinder itself.
At 0.9 MPa, the SAIJ160X55-20-S provides 18095 N of push force and 9425 N of pull force. It operates within a speed range of 30-500 mm/s and uses PT G3/4 ports.
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