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Brand: Gullco
Gullco KBM-28 Heavy Duty Plate Bevelling Machine
Description
Cold-machined plate bevels from 8 to 50 mm thickness
The Gullco KBM-28 is a heavy-duty, portable, self-propelled plate edge beveller that mills weld bevels on the top side of mild steel, stainless steel and aluminium plate from 8 mm (5/16 in) to 50 mm (2 in) thick. Because the bevel is machined with a tooth cutter rather than cut thermally, there is no heat-affected zone, no oxide scale to grind off and no thermal distortion of the plate edge. The bevelling head adjusts to produce bevel angles from 22.5° through 55°, and the machine travels along the plate at up to 2 m per minute.
The KBM-28-100 is shown in the photo. For joints that need preparation on both faces, Gullco offers the KBM-28U underside beveller, which bevels the underside of the plate without turning the workpiece over.
Technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Gullco |
| Model | KBM-28 heavy-duty plate bevelling machine (KBM-28-100) |
| Materials | Mild steel, stainless steel, aluminium plate |
| Plate thickness | 8.0-50.0 mm (5/16-2 in) |
| Bevel angles | 22.5° through 55° (pins for 30° supplied as standard; 22.5°, 37.5°, 45°, 55° and others available) |
| Max. bevel width at 30° | 28.0 mm (1.10 in), on 45 kg/mm² (64,000 psi) material |
| Max. bevel depth at 30° | 24.2 mm (0.95 in), on 45 kg/mm² material |
| Bevel speed | Up to 200 cm/min (78.7 in/min), depending on bevel depth and supply |
| Motor | 3 HP, 3-phase; 230, 460 or 575 V at 60 Hz, or 380 and 400/415 V at 50 Hz |
| Weight | 444 kg (979 lb) including undercarriage assembly |
| Compliance | CSA/NRTL (file LR 35006-6) and CE |
Maximum recommended bevelling capacity
| Bevel angle | 45 kg/mm²: width / depth | 50 kg/mm²: width / depth | 60 kg/mm²: width / depth |
|---|---|---|---|
| 22.5° | 28 / 26 mm | 26 / 24 mm | 23 / 21.3 mm |
| 30° | 28 / 24.2 mm | 25 / 21.6 mm | 22.5 / 19.5 mm |
| 37.5° | 27 / 21.4 mm | 25 / 19.8 mm | 21 / 16.7 mm |
| 45° | 26 / 18.4 mm | 24 / 17 mm | 21 / 14.9 mm |
| 55° | 25 / 14.3 mm | 23 / 13.2 mm | 21 / 12 mm |
Undercarriages, cutters and accessories
The beveller is mounted on an adjustable undercarriage for height setting; a hydraulic adjustable undercarriage (KBM-28-080) is also offered. Both use Gullco’s self-aligning, spring-loaded caster wheel assembly, which lets the unit propel itself along any length of plate while keeping a uniform bevel and consistent root face. Undercarriages are sold separately.
Standard equipment listed by Gullco is one KBM-28-X1C deep tooth cutter (medium cut), a set of bevel angle pins for 22.5°, 37.5°, 45° and 55°, and a tool kit. Optional items include the KBM-28-X1C medium tooth cutter for a smooth finish, the KBM-28-X1H high tensile cutter, GBM-28 angle bevel pins for other angles, and GBM-28-0.5 and GBM-28-1.0 cutter shims.
Documents and quotation
The attached Gullco KBM-28 brochure contains the specifications and bevelling capacity table. For a quotation, state the supply voltage and frequency, plate materials and thicknesses, bevel angles, undercarriage type and whether the KBM-28U underside unit is needed. Related machines are listed under cutting and bevelling machines.
Datasheets & Documents
- Brochure Gullco KBM-28 heavy duty plate bevelling machine brochure Download
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About brand
Gullco International was formed in 1954 to serve the welding industry in North America and is a family-owned company with its world headquarters in Newmarket, Ontario, Canada. It manufactures welding and cutting automation, plate beveling machines, ceramic weld backing and electrode ovens. Seven Star LLC, an independent supplier in Muscat, lists Gullco KAT and MOGGY carriages and KBM plate bevelling machines, including the GK-R-300 KAT 300 welding carriage, and sources Gullco equipment for fabricators.
Gullco product groups
The best-known line is the KAT® family of welding and cutting carriages, which run on rigid, semi-rigid or flexible track and can carry weld oscillators, auto-weld and indexing functions, plasma or flame cutting torches and seam trackers. Gullco also builds MOGGY® trackless carriages, KBM plate beveling machines, gantry systems, KATBAK® ceramic weld backing and electrode stabilising ovens.
Ordering Gullco equipment: what we need
Give the Gullco item number, which includes the model option, and the supply voltage. For carriages, list the track type and length, the mounting devices and the torch or gun holder you need. For KATBAK backing, state the joint type, plate thickness and tile profile.
Related products
Frequently Asked Questions
Plate from 8.0 mm (5/16 in) to 50.0 mm (2 in) thick.
22.5° through 55°, set with angle bevel pins.
28 mm (1.10 in) at 30° on material with 45 kg/mm² tensile strength.
The KBM-28 bevels the top side; the KBM-28U underside beveller is used for the bottom side.
A 3 HP three-phase motor for 230, 460 or 575 V at 60 Hz, or 380 and 400/415 V at 50 Hz.

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