Safety-Enhanced CNC Knee Mills

KENT INDUSTRIAL USA’s industry-standard CNC knee mills – on display at IMTS 2024, in booth 236736 – are factory-installed with the Acu-Rite MillPWR G2 system. Designed with advanced safety and superior operational features, these knee milling machines are recommended for production and training facilities. These features enhance functional efficiency and precision while also improving and ensuring safety for the user—providing a secure environment for operators of all skill levels—at machining facilities large and small.

Each unit also offers several distinctive safety features, namely:

E-stop functionality: Emergency stops (E-stops) are located on both the head control and the Acu-Rite G2 Control. Whether the operator is near the control or on the other side of the table, either E-stop will completely shut down the machine.

Safety microswitch for switching gears:  The spindle rotates according to the forward/reverse switch settings while in high gear. Traditionally, in low gear, the direction reverses—requiring manual adjustment. Kent USA® CNC knee mills are equipped with a microswitch that automatically toggles the motor to reverse when shifted to low gear, ensuring correct rotation in both high and low gears. This feature prevents potential damage to the tool, machine, and operator.

RPM setting on Acu-Rite G2 control: Operators can set the RPM directly on the CNC control, allowing them to preset spindle speeds for corresponding tools. When tools are changed in the correct sequence, the system automatically resets to the pre-set RPM for each specific tool.

Digital inverter drive head: The digital inverter drive head has fewer moving internal components compared to standard variable speed heads, which traditionally use cone-shaped pulleys to vary speed. Instead of relying on mechanical adjustments, the digital drive head uses frequency drive to change speeds, providing a more efficient and precise control.

Spindle load meter: The DRO on the head control displays the spindle load, helping to detect when cutters are starting to wear out. Traditionally, this would be detected manually by listening or feeling for additional required pressure. The spindle load meter offers a proactive visual reference, allowing operators to stop the machine immediately upon detecting an unusual load, change the tool, and resume operations.

Learn more at www.kentusa.com