Airtac SAIJ160 Adjustable Cylinder SAIJ160BX900-50
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX900-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX900-50
The AirTAC SAIJ160X900-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits up to 50mm of end-position trimming, yielding a usable travel window between 850 and 900mm. Delivering 18095N of push force at 0.9 MPa, this 160mm bore unit is built for heavy-duty operations. The extruded aluminum barrel includes sensor grooves on both sides, and the rod is constructed from SUS304 stainless steel for superior corrosion resistance.
This model utilizes PT tapered port threads and a G3/4 air supply connection. The rear adjustment screw acts purely as a mechanical stop for commissioning or product changeovers, meaning it does not lock the load without live air pressure. For applications requiring position holding upon air loss, an external pilot-operated check valve or the AirTAC SAIL locking cylinder is required. The standard variable air cushions at both ends decelerate the heavy 900mm travel, while the M36x2 rod thread handles substantial side loads when properly guided.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX900-50 Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX900-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 900 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 SAIJ160BX900-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×900 | 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 SAIJ160BX900-50 Is Used
Heavy Press Tuning
Dial in the exact 850-900mm end position during heavy press changeovers without physically remachining stop blocks or replacing the cylinder.
Large Product Diverter
Adjust the retract stroke on the fly to accommodate varying widths of large pallets or materials moving down a heavy-duty conveyor line.
Variable Stroke Ejection
Fine-tune the ejection distance of heavy parts from a molding or stamping area, ensuring safe ejection without overtraveling the mechanism.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX900-50 the Right Cylinder?
Selecting this 160mm bore over the smaller 125mm option provides a significant force jump, stepping up from 11045N to 18095N at 0.9 MPa. The 50mm adjustable stroke is highly advantageous when you need to fine-tune the extended end position during machine setup without swapping out the entire cylinder or adding bulky external stops. Because the 900mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-loading on the SUS304 rod, even with the robust M36x2 rod thread.
When specifying a replacement for an ISO 15552 footprint, match the 160mm bore, 900mm stroke, 50mm adjustment range, PT port thread, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interfaces. Note that the SAIJ series omits FB, CA, CB, and CR mounts. This specific configuration lacks the -S magnet, so it will not directly interface with AirTAC CMSE reed or DMSE electronic sensors without modification.
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 SAIJ160BX900-50 FAQ
At an operating pressure of 0.9 MPa, this 160mm bore cylinder generates a push force of 18095N and a pull force of 9425N. It can deliver up to 2050 kgf at its maximum rated pressure of 1.0 MPa.
The rear adjuster screw allows you to shorten the nominal 900mm stroke by up to 50mm, creating a usable travel window of 850 to 900mm. This stopper only sets the end position and deceleration point; it does not lock the load without continuous live air pressure.
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