
GMMA-80A Automatic Walking Plate Chamfering Machine for V, Y, K, X Bevels
- Plate thickness
- 8–80 mm
- Bevel angle
- 0–60°
- Power
- 4,920 W
Compact self-propelled plate beveler for 6–60 mm plate with a 0–90° adjustable bevel angle and 3 kW milling head.
The GMMA-60L is our most versatile mid-size plate beveler. It walks along the plate edge on its own feed motor and cold-mills the bevel with a 3 kW milling head, so a single operator can prepare V, Y and J bevels on 6–60 mm plate without flame cutting or grinding. The bevel angle is adjustable from 0° to 90°, which also lets it mill a vertical face or a J-groove radius.
Values for the standard configuration. Custom versions may differ; confirm with your quotation.
| Power supply | AC 380 V, 50 Hz, 3-phase |
|---|---|
| Total power | 3,400 W |
| Milling motor | 3,000 W |
| Feed motor | 400 W |
| Spindle speed | 1,050 r/min |
| Feed speed | 0–1500 mm/min, adjustable |
| Plate thickness | 6–60 mm |
| Bevel angle | 0–90° |
| Max. bevel width | 0–55 mm |
| Single-pass bevel width | 15–20 mm (Q235) |
| Min. plate length / width | >300 mm / >100 mm |
| Cutter head | Ø63 mm, 6 inserts |
| Surface finish | Ra 3.2–6.3 |
| Net weight | 215–280 kg |
| Certification | CE, ISO |
| Warranty | 1 year |
| Model | Difference |
|---|---|
| GMMA-60L | This page |
| GMMA-60S | 10–60° bevel angle, 6–60 mm plate, 45 mm max bevel width |
| TMM-63L | 0–90° bevel angle, 8–60 mm plate, J-bevel profile |
Range, power, warranty and shipping.
Compact self-propelled plate beveler for 6–60 mm plate with a 0–90° adjustable bevel angle and 3 kW milling head. Typical applications: steel structure fabrication, pressure vessels, shipbuilding, bridge girders.
The GMMA-60L covers 6–60 mm. Related models extend the range: GMMA-60S (10–60° bevel angle, 6–60 mm plate, 45 mm max bevel width); TMM-63L (0–90° bevel angle, 8–60 mm plate, J-bevel profile).
V, Y, J, 0° preparations. Send us your joint drawing and we will confirm the tooling.
1 year warranty. Every machine is run and inspected before shipment; a test report and an outgoing-inspection video are provided with the order.
Standard configuration: AC 380 V, 50 Hz, 3-phase. Tell us your voltage, phase and frequency, or whether you need pneumatic drive, when you request a quote and we will confirm the available configuration.
Machines are packed in export wooden or plywood cases; portable tools ship in fitted carry cases inside the export carton. We ship by sea, air or express from Shanghai and provide the commercial invoice, packing list and certificate of origin.




Tell us the material, size and bevel or face you need, and your power supply. We reply within one working day.