Rotary Roller Bits

Designed & developed according to the construction requirements and market demand,

trench-less cone palm can be applied to various formations and drilling tools,

achieving a full coverage of 8-1/2 to 12-1/4 inch.

Description

Rotary Roller Bit, roller bit, drill bit, pdc bit, HDD bits, HDD reamer

Internal structure:

1. Adopting the steel ball locking sliding bearing and the bearing surface is welded with wear-resistant alloy, which has high wear-resistant performance and longer service life.

2. High performance rubber sealing structure and metal sealing structure improve the life and reliability of the whole sealing structure.

3. High performance environmental protection grease and bearing structure equipped with oil storage and pressure compensation system improve the working life of the bearing.

4. Carbide inserts with high strength and toughness can improve the impact resistance of inserts and reduce the insert broken rate.

5. Optimized cutting structure, insert exposed height, quantity and shape strengthens the drilling coverage, giving full play to the advantages of trench-less reamer.

Trench-less cone

seal type	Type		medium to soft formation				medium to hard formation
seal type	Inch	mm	517	527	537	547	617	627	637	647
Rubber seals	8 1/2	216			V		V
	9 7/8	251			V		V
	12 1/4	311			V		V
Metal seal	8 1/2	216			V		V
Metal seal	12 1/4	311			V		V