Roller Bit
In rotary drilling construction, the roller bit (roller cutter) is the core cutting component for drilling into medium-hard and hard rock formations. It features high-hardness tungsten carbide teeth mounted on sealed roller bearings, delivering strong crushing capacity and long service life under high load, making it ideal for rock-socketed pile drilling in sandstone, granite, and limestone strata.
立即询价技术参数
| 参数 | 数值 |
|---|---|
| Outer Diameter | 152-432 mm (6"-17") |
| Material | Alloy Steel + Tungsten Carbide Teeth |
| Bearing Type | Sealed Roller Bearing |
| Rock Strength | ≤ 120 MPa |
| Warranty | 1 year / 1000 hours |
核心特性
常见问题
Suitable for medium-hard to hard rock formations with uniaxial compressive strength ≤120MPa, such as moderately weathered sandstone, granite, and limestone.
It uses a sealed roller bearing structure with strong load capacity and smooth operation, capable of handling high-load rock drilling.
Replace when alloy teeth wear exceeds 1/3, when tooth breakage occurs, or when the bearing seizes or produces abnormal noise during operation, to avoid damaging the drill bucket body.