GREAT has customized manufacture several types of roller bit. It is including 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit. All these two types have designed Starry Sky Roller Bit.

The cones designed more full insert than traditional tricone bit cutter.

1. 90 ° U-shaped Roller Bit is straight legs of tricone bit, it is special model made by GREAT.

But also we have designed rock roller drill bit with foundation, it can replaceable the roller bit, in this case, you will not worry welding on the rock reamers .High precision bearing surface heat treatment adopts advanced heat treatment technology to improve bearing bearing capacity and service life.

2.120 ° U-shaped Roller bit. The traditional roller bit was cut by tricone bit.

So it is including No.1, No.2, No.3 Cone cutters.

The Roller bit mainly used for Rock reamer (Hole opener) For HDD (Horizontal directional drilling ) Trenchless technology. But also used for Core barrel with roller bit, like pile foundation project.

3. Full cutter layout (Starry Sky Roller Bit), fast assembly way of bit leg avoid heating problem of soldering, which extend lifetime of bearing.

Replaceable cutter rock reamer is designed for big rig and big hole drilling, fit for all sorts of rock formation.

High precision bearing surface heat treatment adopts advanced heat treatment technology to improve bearing bearing capacity and service life.

The Starry Sky Roller Bit has 90 ° U-shaped Roller Bit and 120 ° U-shaped Roller Bit.

The cone units of Great Roller Cone Cutters are replaceable and each main body of the Hole Openers can be used many times,thus saving the cost for the customer.

The strength and wear resistance of inserts are improve by using carbide inserts with high strength and high wear resistance.

We have roller cone bits for sale and also provided OEM service if you have your own design and NDA with contract.

Just feel free to tell me if you have any needs.