![]() |
Hubei Milalion Metallurgical Machinery Technology Co., Ltd
|
Price: | |
Payment Terms: | T/T,L/C |
Place of Origin: | Hubei, China (Mainland) |
![]() |
|
Add to My Favorites | |
HiSupplier Escrow |
CUTTING STRUCTURE
Gauge rows are Ovoid type and inner rows are ogive type.
Designed for hard and abrasive formation with high compressive strengths such as granite, limestone, sandy sandstone, dolomite and chert.
SHIRTTAIL PROTECTION:
Hard metal on lug;
Wear resistant carbide on shirttail lip and lug.
PRODUCT SPECIFICATION:
IADC Code: 735
Bearing Type: Roller-Ball-Roller-Thrust Button/Sealed bearing
Circulation Type: Jet Air
Cutting Structure:
- Inner and Nose rows: Ogive
- Gauge rows: Ovoid
Heel rows: round Pin
Pin Connection: 3 1/2"API, 4 1/2"API,6 5/8"API
Bit Diameter: 159mm(6 1/4") ~ 311mm (12 1/4")
Product Weight:20kg ~ 98kg
OPERATING SUGGESTIONS
Rotary Speed: 90-60 RPM
Air Back Pressure: 0.2-0.4 Mpa