Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-20S
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX185-20S 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 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 SAIJ160BX185-20S
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 to 185 mm. The extruded aluminum barrel features sensor grooves on both sides, and because this variant includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise end-of-stroke detection.
This model utilizes a SUS304 stainless steel rod (material code B) for superior corrosion resistance and features PT tapered port threads. The rear adjuster acts strictly as a mechanical stop to fine-tune the retract position during commissioning; it is not a locking device and will not hold the load without continuous live air pressure. For load-holding requirements without air, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-20S |
|---|---|
| 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 | 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 SAIJ160BX185-20S
| 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 SAIJ160BX185-20S Is Used
Heavy Press Tuning
Dial in the exact 165-185 mm retract position on heavy pressing equipment during product changeovers without swapping the cylinder.
Machine Commissioning
Fine-tune the end stop during initial setup to perfect the stroke distance, absorbing minor mechanical tolerances safely.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod for heavy clamping tasks in environments where moisture or mild corrosive elements are present.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX185-20S the Right Cylinder?
The adjustable 165-185 mm travel window is ideal for machine setups requiring exact end-position tuning without adding external stops, offering greater flexibility than a fixed-stroke SAI cylinder. When matching ISO 15552 replacements, confirm the 160 mm bore, 185 mm nominal stroke, 20 mm adjustment range, PT port threads, and the integrated magnet for sensor compatibility.
Because the 185 mm stroke is relatively short for this large bore, side-load stress is manageable, but you should still ensure proper alignment to protect the M36x2 rod thread. The mounting hardware utilizes the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), deliberately omitting FB, CA, CB, and CR brackets. Operating speed for this bore size ranges from 30 to 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 SAIJ160BX185-20S FAQ
At 0.7 MPa, the push force increases to 14074 N. The maximum rated force is 2050 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 20 mm, creating a usable travel window of 165 to 185 mm. It functions as a mechanical stop for position tuning and requires live air to maintain load holding.
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