
GMM-80R Up & Down Automatic Plate Beveling Machine, 6–80 mm Plate
- Plate thickness
- 6–80 mm
- Bevel angle
- 0 to ±60°
- Power
- 4,920 W
GMM-80R walking machines and a TMM-3000 CNC edge miller prepare K and X joints on hull plates without turning the plate over.

Hull blocks use many double-sided K and X joints. Beveling one side, then lifting and flipping a 10 m plate to bevel the other, ties up the overhead crane and slows the whole panel line.
Walking GMM-80R machines run along the plate edge on the panel line itself. Their turnable head bevels the top face, then the underside, without moving the plate. Long, straight edges that repeat across many blocks go to a TMM-3000 CNC edge miller with two heads, so both sides are cut in one programmed cycle. A GCM-R3AR rounds free edges to R2 before blasting and painting.
Double-sided joints are prepared without crane lifts to turn the plate. Milled bevels need no grinding before welding, and rounded free edges meet the coating specification for edge preparation.
The equipment behind this application.




Split-frame OCE-630 machines cut out damaged sections and prepare weld-ready bevels on live-plant pipelines where hot work permits are restricted.

GMMA-100L and GMMA-100U machines mill deep U and J grooves on 60–100 mm shell plate, cutting filler metal compared with a V-groove.

Portable TFS-I610 and TFS-I1000 flange facers restore raised faces and RTJ grooves in place, so leaking joints are fixed without replacing flanges.
Send us the scope and we will propose the machines, tooling and a quotation.