Product Overview​​

The​​MARPOSS 866KAACBB0 NSNP​​is a highly specialized acoustic emission(AE)sensor system designed for real-time tool condition and process monitoring on CNC machine tools.Unlike traditional force or optical methods,this system operates by detecting high-frequency stress waves(typically in the 100 kHz to 1 MHz range)generated by plastic deformation,friction,crack formation,and impacts during the machining process.The core component is a piezoelectric sensor that is directly mounted on the machine structure(e.g.,the spindle housing or the workpiece table),which converts these microscopic vibrations into electrical signals.

The​​MARPOSS 866KAACBB0 NSNP​​system’s primary function is to continuously”listen”to the machining process.When a cutting tool breaks,a characteristic burst of acoustic energy is released.Similarly,excessive tool wear or a collision between the tool and the workpiece/fixture generates a distinct AE signature.The system’s monitoring unit processes these signals in real-time,comparing them to predefined thresholds.If a signal exceeds the threshold—indicating a tool breakage,severe wear,or a crash—the system immediately sends a stop signal to the CNC control,halting the machine to prevent further damage.The value of the​​866KAACBB0 NSNP​​lies in its ability to detect events that are often undetectable by other means,providing a critical layer of protection for both the machine tool and valuable workpieces,especially in unattended machining operations.

​​Technical Specifications​​

Parameter Name

Parameter Value

Product Model

​​866KAACBB0 NSNP​​

Manufacturer

MARPOSS

Product Type

Acoustic Emission(AE)Sensor/Monitoring System

Operating Frequency Range

Typically 100 kHz-1 MHz(specific to model)

Sensor Type

Piezoelectric AE Sensor

Sensitivity

High sensitivity to detect micro-level stress waves

Output Signal

Analog voltage signal proportional to AE activity

Interface

Connects to a Marposs monitoring unit(e.g.,E5A,E6A)

Power Supply

Powered via the monitoring unit(e.g.,24V DC)

Mounting

Mechanical coupling(e.g.,magnetic mount,adhesive,or screw)to machine structure

Operating Temperature

-5°C to+70°C(or as specified for industrial environment)

Environmental Protection

Robust housing for resistance to coolants and chips

​​Main Features and Advantages​​

The​​MARPOSS 866KAACBB0 NSNP​​offers several critical advantages for advanced machining monitoring.Its most significant feature is​​high sensitivity and early fault detection​​.Acoustic emission technology can detect the initiation of a micro-crack in a tool long before it leads to catastrophic failure or produces a defective part.This allows for predictive maintenance and tool change scheduling,maximizing tool life while avoiding scrap.

A key advantage is its​​immunity to low-frequency mechanical noise​​.Since AE sensors operate in a very high frequency range,they are largely unaffected by the normal vibrations of the machine tool(e.g.,spindle rotation),which occur at much lower frequencies.This results in a high signal-to-noise ratio,making the detection of genuine process anomalies highly reliable.Furthermore,the​​MARPOSS 866KAACBB0 NSNP​​provides​​real-time,in-process monitoring​​.It does not require interrupting the machining cycle to take a measurement,enabling 100%inspection of tools during production.This capability is indispensable for lights-out manufacturing and for machining high-value components where the cost of a failure is extremely high.Its robust design ensures continuous operation in the harsh environment of a machine shop.

​​Application Field​​

The​​MARPOSS 866KAACBB0 NSNP​​is deployed in high-value,high-risk CNC machining applications across critical industries.In the​​aerospace industry​​,it is essential for monitoring the machining of expensive components from materials like titanium and Inconel,where tool breakage can ruin a part worth thousands of dollars.In the​​automotive industry​​,it is used in production lines for engine blocks,cylinder heads,and transmission components to ensure uninterrupted operation and prevent massive downtime.

This system is also critical in the​​mold and die industry​​for monitoring long-duration finishing operations with small-diameter tools that are prone to breakage.Additionally,it is used in​​general precision machining​​of exotic materials and in any scenario implementing unattended machining operations.Essentially,the​​MARPOSS 866KAACBB0 NSNP​​is the technology of choice for applications where the consequences of tool failure or a collision are severe,providing an essential safety net for productivity and quality.

​​Related Products​​

​​Marposs E5A/E6A Monitor​​:The central processing unit that connects to the​​866KAACBB0 NSNP​​sensor,analyzes the signals,and interfaces with the CNC.

​​Marposs Mida Touch Probes​​:Tool setting and part inspection probes,representing a complementary measurement technology.

​​Marposs 02RJ9969 NSNP​​:Non-contact optical tool setting system,used for pre-process measurement versus AE’s in-process monitoring.

​​Sensor Cables​​:Specialized low-noise coaxial cables for connecting the AE sensor to the monitor.

​​Mounting Accessories​​:Magnetic holders,adhesive pads,or fixtures for optimal sensor placement.

​​Installation and Maintenance​​

Installation preparation:Installing the​​MARPOSS 866KAACBB0 NSNP​​requires careful sensor placement.The AE sensor must be mounted as close as possible to the source of the emission(e.g.,on the spindle housing for tool monitoring)with a solid mechanical coupling to ensure efficient transmission of high-frequency waves.The mounting surface must be clean and smooth.The sensor is then connected to the Marposs monitor(E5A/E6A)using the specified low-noise cable.The monitor itself must be connected to the CNC’s digital inputs to send the stop signal.

Maintenance recommendations:Maintenance for the​​MARPOSS 866KAACBB0 NSNP​​is minimal but crucial.Regularly inspect the sensor’s mounting to ensure it remains tight and the coupling is effective.Check the cable for any signs of damage.The most important maintenance is the regular verification of system functionality.This involves running a test with a known good tool and a simulated breakage event(if supported)to ensure the system triggers correctly.Keep the sensor body clean from excessive coolant or oil buildup.

​​Product Guarantee​​

We guarantee that every​​MARPOSS 866KAACBB0 NSNP​​acoustic emission sensor system we supply is a 100%genuine Marposs product,sourced through reliable and authorized channels.Each unit is inspected to ensure it meets the high standards of sensitivity and reliability required for critical tool monitoring applications.We understand that this system is your last line of defense against costly machine crashes and tool breakage.Therefore,we are committed to providing only authentic,fully functional equipment.Our technical support can assist with integration guidance to ensure the​​866KAACBB0 NSNP​​works effectively with your specific machine tool and Marposs monitoring hardware.

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