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Case 4 · Changwon, Gyeongnam · Metalworking

CNC machine tending: 9 hours unattended every night

We placed three HG-C10-13 cobots among six CNC machines. The machines now run 9 hours unattended after the shift ends, and each operator looks after six machines instead of three.

Title
Cell layout
Drawing no.
HG-DWG-304
Scale
1:50
Unit
mm

Results in numbers

Unattended night run
9hours
Machine utilization
58 to 81%
CNCs per operator
3 to 6machines

ExampleAll figures are examples, compared with the same process before automation.

Cell layout

3 robots, laid out like this.

The cell seen from above. Dashed circles show how far each robot’s wrist reaches. Press a + button to open the note for that spot.

Title
Changwon · CNC machine tending
Drawing no.
HG-DWG-304
Scale
1:50
Unit
mm

Cell layout for a precision machining shop in Changwon, Gyeongnam, seen from above.

Parts list Select a row to pick out those items on the layout.

Problem → solution → result

The problem, and the fix.

  1. Problem

    Six CNC machines cutting hydraulic parts ran on a single day shift. When the people who loaded and unloaded them went home, the machines stopped too.

    Weekend overtime was routine to meet deliveries, and with machines waiting for someone to come to the door, utilization sat at 58%.

  2. Solution

    One HG-C10-13 sits between each pair of facing CNC machines, so three robots run all six. Blanks and finished parts go into eight-drawer tray stands that are filled in the evening and last through the night.

    Area scanners, placed according to the risk assessment, cover the aisle where people swap trays. When someone walks in, the robot slows, and when they come close, it stops. The HGC-7 exchanges door and cycle-complete signals with each CNC.

  3. Result

    The machines run 9 hours unattended after the shift ends, and utilization rose from 58% to 81%. Each operator now covers six CNC machines instead of three, and weekend overtime has dropped.

Robots and timeline

Robots used, time on site.

Title
HG-C10-13 × 3
Drawing no.
HG-DWG-314
Scale
1:50
Unit
mm
× 33 HG-C10-13 robots, side views at one scale.

Collaborative robots

HG-C10-13

Our flagship cobot: 10 kg and 1,300 mm, from machine tending to welding

Payload
10kg
22 lb
Reach
1,300mm
51.2 in
Repeatability
±0.03mm

Time on site

3 days to install and 2 weeks to commission, one cell at a time

Example

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These cases are examples made for this portfolio. Customers are not named, and every figure is an example compared with the same process before automation.

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