Are you having trouble detecting durability and small diameter tools (φ0.1mm~)?

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BK Micro

last updated：Sep 02, 2025

TOMITA CO.,LTD.

BK Micro can prevent the occurrence of defects by safely, reliably, and quickly detecting tool breakage in advance.

Revolutionary tool wear detection system. Available in two types for lathes and machining centers, equipped with servo motors and encoders, allowing easy condition setting and changes by connecting to a PC via USB port. Common features include: ■ Cycle time is fast at 90°, ranging from 0.13 to 0.9 seconds. ■ Adjustable tool contact pressure. ■ Memory for tool contact angle. ■ Long lifespan of 5 million cycles. ■ Both controller and scanner are compact. Features for lathes include: ■ Capable of detecting extremely small tools of 0.1mm. ■ Easy setup through simple teaching. ■ Can detect up to 2 tool positions. Features for machining centers include: ■ Tool wear detection possible without sacrificing machining time by installing in the tool magazine. ■ Capable of setting and storing configurations for up to 512 tools. ■ Compatible with Profibus and DeviceNet, allowing direct connection to the machine's NC device for reduced wiring and PC-less setup and adjustments (input from NC device).

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basic information

Tool loss detection device, mainly used in NC lathes, dedicated machines, and machining centers, detects breakage or chipping of cutting tools such as drills and taps, and sends a signal to the machine.

Price range

Delivery Time

Applications/Examples of results

Adopted as standard options and special options by top machine tool manufacturers both domestically and internationally, with a track record of over 90,000 units worldwide.

Detailed information

TK91A Scanner for Machining Centers ■ Maximum Tool Length: 700mm ■ Effective detection within the tool magazine ■ Detection of multiple tools with varying lengths ■ Rotating scan that makes contact axially with the tool tip
BKM91D Controller for Machining Centers / DeviceNet Specification ■ Stores up to 512 tool information ■ By connecting to NC devices via DeviceNet, there are no limits on tool information storage, enabling control with NC devices.
BKM91P Controller for Machining Centers / Profibus Specification ■ Stores up to 512 tool information ■ By connecting to the NC device via DeviceNet, there is no limit on tool information storage, allowing for control on the NC device.
TK96A / TK96RL Scanner for Lathes ■ Minimum detectable tool diameter: 0.1mm ■ TK96A rotates in one direction ■ TK96RL rotates in two directions ■ Compact design with a diameter of 12mm ■ Rotating scan that makes contact with the tool in the vertical direction
TK7A / TK7RL Scanner for Lathes ■ Minimum detectable tool diameter 0.2mm ■ TK7A rotates in one direction ■ TK7RL rotates in two directions ■ Compact design with a diameter of 20mm ■ Rotating scan that makes contact with the tool in a vertical direction
BKM93 Lathe Controller ■ Detailed settings function via mini USB ■ Teaching can be completed with one push without using a computer ■ Compatible with various types of scanners