No.

Model No.

Model Description

Tooth Row Quantity

Taper

Features

1

MDV512

MDV522

• MD : Maxdrill
• V : Raise Boring Roller Cutter
• 5 : 5 teeth row
• 12 : cutter shape         

(low end double row teeth)

• 22 : cutter shape       

(high end double row teeth)

5

20°

High quality metal sealing

Using high quality tungsten carbide teeth,so as to achieve the full coverage of crushing

Chisel on main alloy teeth,Ovoid on lug,matching use on cutters

Can be repairable and customized

No.

Used Parameters

MDV512

MDV522

1

Suitable Rock Hardness

Platts Hardness 11≤f≤15

Platts Hardness 11≤f≤15

2

Recommended single cutter drilling pressure

100KN-200KN

100KN-200KN

3

Max withstand drilling pressure

245KN

245KN

4

Recommended cutter head rotating speed

3 - 15 RPM

3 - 15 RPM

5

Max line speed

90M/min

90M/min