Airtac SAIJ160 Adjustable Cylinder SAIJ160BX300-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX300-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX300-40S
The AirTAC SAIJ160X300-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 260 to 300 mm. It delivers massive thrust, generating 18095 N of push force at 0.9 MPa, making it suitable for heavy-duty operations. The extruded aluminum barrel features sensor grooves on both sides, and because this unit 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 (option B) for superior corrosion resistance and features a PT tapered port thread. The rear adjuster acts purely as a travel stop to fine-tune the retract end-position during commissioning without swapping the cylinder or adding external stops. It is important to note that this adjuster, along with the variable air cushions at both ends, only decelerates the travel; it does not hold the load without live air pressure.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX300-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX300-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 300 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 SAIJ160BX300-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×300 | 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 SAIJ160BX300-40S Is Used
Heavy Assembly Presses
Dial in the exact 260-300 mm end-stop during heavy assembly press setup to accommodate different workpiece heights without changing the tooling.
Variable Stop Positioning
Use the rear adjuster screw to fine-tune the retract position on the fly, ensuring precise mechanical alignment during machine changeovers.
Product Diverters
Handle large or heavy pallets on a conveyor line, adjusting the stroke length to match varying product dimensions on the fly.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX300-40S the Right Cylinder?
Choose this 160 mm bore when an application requires heavy force that exceeds the 7068 N push force at 0.9 MPa of the 100 mm bore, but falls below the 28274 N of the 200 mm bore. The adjustable 260-300 mm stroke is ideal for product changeovers on a line where exact end-stop positioning varies, eliminating the need to physically swap out a fixed-stroke SAI cylinder. For applications requiring true load-holding without continuous air pressure, this cylinder is insufficient; you should consider the SAIL air-released lock or BSAI clamp-lock series instead.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 300 mm nominal stroke, 40 mm adjustment range, PT G3/4 port, and the -S magnet. Because the nominal stroke is 300 mm, the 40 mm diameter rod and M36x2 thread provide robust support, but long unsupported strokes still require an external guide to prevent excessive side-loading. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR configurations.
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 SAIJ160BX300-40S FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder provides 18095 N of push force and 14074 N of pull force. It operates at a speed range of 30-500 mm/s.
The rear adjuster screw allows you to shorten the effective travel from the 300 mm nominal stroke down to 260 mm. This creates a 260-300 mm adjustable window for fine-tuning the end position at commissioning without needing external stops.
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