Products

KRD 760
CNC-controlled sharping machine with TWIN-TEC technology

A state-of-the-art CNC-controlled saw blade grinding machine for resharpening, chamfering and the grinding of new teeth, by use of vitrified and CBN abrasive grinding.

Advantages at a glance

• Universal, versatile automatic grinding machine for metal circular saw blades with diameters up to 760 mm
• Absolut indexing precision and a perfect tooth shape through modern CNC control system
• TWIN-TEC: 2 different grinding methodes – one machine! The KRD 760 can be used with vitrified as well as with CBN grinding wheels
• Effective cooling with 6 bar coolant pressure ensures short grinding times
• Choice of water or oil for cooling
• Automatic path offset. Different pitches can be machined using the same grinding wheel thickness, which means a very small number of grinding wheels needs to be stocked
• Dressing unit for automatic grinding wheel dressing by use of vitrified wheels
• Blade clamp at the point of the grinding enables the grinding of saw blades with 150-760 mm diameter by use of the same clamping flange
• The Sym-menu prompt system ensures optimum clarity of the control panel screen
• Any change can be carried out quickly and easily through touch commands on the screen using the Loroch Easy-Touch system
• Semiautomatic chamfering
• Minimum floor space, because of compact machine design with large, coolant tank integrated

Technical data

A new, totally modern machine concept for the resharpening, chamfering and retoothing.
In addition the machine can be used for cutting off defective teeth, grinding of chip breaker grooves and grinding of saw blades with vari pitch toothing. Besides HSS- and segmental saw blades the machine will grind solid carbide blades or friction saw blades (Trennjäger).

The saw blade data will be entered into the control panel. The computer calculates the tooth pitch and tooth heigth and suggests the DIN tooth height difference for tooth shape "C".
The computer also automatically calculates the required grinding wheel thickness and informs the operator in case a grinding wheel change will be necessary.
The hook and clearance angle, the amount of stock removal and the grinding speed are preselected on the screen. That`s all, the machine is ready to start grinding.