Reference Rule (PSPC – Edge Preparation)

� Reference Rule (IMO's PSPC rule)� To avoid insufficient coating film thickness at certain areas, such as corners, edges and

weld Seams in the ballast tanks, mechanical grinding of the edge area is required since

stripe coatings applied on a smoother edge profile will retain liquid paints longer than

the sharper shaped edge does.

� For this purpose, "3-Pass or 2-R" edge grinding treatment prior to secondary surface

preparation is specified by IMO's PSPC rule.

GTR series

� Key Features

� Quick & Easy center setting (One-touch type – P model only)

� Turning base plate(Anti-friction)

� Advanced ring type insert or 8 blade-tip type insert

� Spindle lock for insert(s) replacement

� 3 Ejection pins (patent, P model only)

� Multi beveling (curve & plates & holes)

� Usages

� Shipbuilding industry, electricity industry, etc.

Classification by Power Source

� Electrical radius bevellers� Model: GTR-3EC

� Drive Motor: Keyang (DG-100BV)

� 220V/60Hz

� Power: 750W

� Variable speed: 4,000 – 11,000 rpm

� Pneumatic radius bevellers� Pneumatic radius bevellers� Model: GTR-3AC (P, G, N grade)

� Air Pressure: 6kg/cm2

� Insert� GTR-3AC & 3EC: 1 piece of ring type helical cutter (8 blades) (3, 4 or 5R)

� Available Range � Required hole size: min. 19mm

� Required corner size: min. R10mm

� Required thickness: min. 10mm

GTR models (1/4)

� GTR-3EC & GTR-3AC-P

� Patented center controller: Quick & easy setup by one-touch controller

� 3 Ejection pins: Quick & easy cutter ejection

� Turning base plate: Anti-friction

� Spindle lock: Prevent cutter rotating when cutter replacement

� Multi beveling: Hole/Curve/Plate (Straight guide bar - option)� Multi beveling: Hole/Curve/Plate (Straight guide bar - option)

GTR models (2/4)� GTR-3EC & GTR-3AC-P

Straight guide (option)Spindle lock and controller

Ejection pins and base plate

GTR models (3/4)

� GTR-3AC-G

� Center controller: Screw type

� Turning base plate: Anti-friction

� A straight guide is not available to this model

� A stopper: Prevent cutter rotating when cutter replacement

� Multi beveling: Hole/Curve/Plate

GTR models (4/4)

� GTR-3AC-N model

� Center controller: Screw type

� Fixed base plate

� A straight guide is not available to this model

� A stopper: Prevent cutter rotating when cutter replacement

� Multi beveling: Hole/Curve/Plate