DNC86 is a non-contact laser tool setter for CNC machining centers, designed to support automated cutting tool measurement without contact with the measuring device. Its opposing optical heads form a laser beam that detects a tool as it enters the measuring zone. With compatible CNC software, this signal can be used for tool length and diameter setting and programmed broken-tool checks.

The DNC86 accommodates tool diameters from 0.06 to 80 mm and has specified repeatability below 1 μm (2σ). Its optical system uses a 680 nm laser with output power below 1 mW. The mounting base permits beam alignment during installation, while a 6 mm pneumatic connection supports an air supply within the specified 43–87 psi range.

Designed for integration into CNC machine tools, the unit uses 24 V DC power and an 8 m oil-resistant, shielded eight-core cable. Its aluminum housing has an IP68 sealing rating. Qidu provides assistance with installation, electrical connections, controller compatibility, measurement macros and commissioning.

Model	DNC86
Product Type	Non-Contact Laser Tool Setter
Tool Diameter Measurement Range	Ø0.06–80 mm
Repeatability (2σ)	Below 1 μm
Laser Wavelength	680 nm
Laser Output Power	Below 1 mW
Laser Beam Alignment	Mounting Base Adjustment
Supply Voltage	24 V DC
Specified Supply Current	100 mA
Power Protection	Recoverable Protection
Output Signal Maximum Current	100 mA
Output Signal Maximum Voltage	36 V
Signal Transmission	Wired
Signal Cable	8 m, Oil-Resistant, Shielded, 8-Core
Pneumatic Tube Diameter	6 mm
Pneumatic Supply Pressure	43–87 psi
Specified Cycle Life	More Than 1 Million Cycles
Sealing Rating	IP68
Body Material	Aerospace-Grade Aluminum
Storage Temperature	−10°C to +70°C
Operating Temperature	+5°C to +50°C

What is the Qidu DNC86 laser tool setter?

The Qidu DNC86 is a non-contact laser tool setter used for automatic cutting tool measurement on CNC machines. It detects cutting tools as they interrupt a laser beam between two optical heads, supporting programmed tool length measurement, diameter measurement and broken-tool checks when compatible CNC software is available.
What is the measurement range of the DNC86?

The DNC86 supports cutting tool diameters from Ø0.06 to 80 mm, according to the supplied technical specification. Measurement performance for particular tools depends on their geometry, calibration and measurement procedures.
What is the repeatability of the DNC86?

The published repeatability specification is below 1 μm (2σ). This describes repeatability under specified test conditions, not absolute measurement accuracy.
Can the DNC86 measure both tool length and diameter?

The system can support both tool length and diameter setting when integrated with appropriate CNC measurement software. Required cycles and available features must be confirmed for the specific controller.
Can the DNC86 detect broken cutting tools?

Yes, the system can support broken-tool detection using suitably programmed measurement routines. These routines can check tool presence or compare measured tool dimensions with previously established references.
Does the DNC86 require compressed air?

The specification includes a 6 mm pneumatic connection and an operating pressure range of 43–87 psi. The installation should provide air meeting the applicable requirements for the optical system.
What type of laser does the DNC86 use?

The DNC86 uses a 680 nm laser with specified output power below 1 mW. The supplied product photograph also shows a laser warning label. Applicable laser safety documentation should be verified for the delivered product.
Does the DNC86 support FANUC and Siemens CNC machines?

Qidu provides integration support for major controller platforms, including FANUC and Siemens. Compatibility of a particular DNC86 installation must be confirmed according to the machine model, electrical interface, control configuration and available CNC macros.
What is the difference between the DNC56 and DNC86?

The main published difference is tool diameter capacity. The DNC56 supports Ø0.06–50 mm tools, while the DNC86 supports Ø0.06–80 mm tools. Both models share the published below 1 μm (2σ) repeatability specification and IP68 sealing rating.
What is the difference between the DNC86 and a contact tool setter?

The DNC86 uses a laser beam to detect cutting tools without physical contact with a sensing pad. Contact tool setters use a mechanical trigger mechanism. The choice depends on the required measurement functions, tool geometry, installation space and control software.

Specification	DNC56	DNC86	DNC168
Tool Diameter Range	Ø0.06–50 mm	Ø0.06–80 mm	Ø0.1–160 mm
Repeatability (2σ)	Below 1 μm	Below 1 μm	Below 1 μm
Laser Wavelength	680 nm	680 nm	680 nm
Laser Power	Below 1 mW	Below 1 mW	Below 1 mW
Supply Voltage	24 V DC	24 V DC	24 V DC
Signal Cable	8 m, Shielded	8 m, Shielded	8 m, Shielded
Pneumatic Pressurev	43–87 psi	43–87 psi	43–87 psi
Sealing Rating	IP68	IP68	IP68