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The cutterhead is available in two types: monolithic cutterheads and modular cutterheads. The modular cutterhead features a compact disassembled size, making it easy to lower into the wellbore. By simply replacing the multi-blade holder, it can be assembled into reaming cutterheads of various diameters. The carefully designed arrangement of cutting segments allows the same cutterhead to accommodate different-performance roller cutter assemblies, thereby reducing users' costs associated with repeated purchases. A proprietary flexible connection between the pull rod and the cutterhead housing effectively mitigates the impact of uneven loading during operations under complex geological conditions, thus extending the cutterhead's service life. The large-scale cutterhead is equipped with traction rods and wheel assemblies that significantly enhance the efficiency of cutterhead transportation.

Modular design

Modular design with a compact cutterhead disassembly size for easy downhole deployment.

Seamless transfer and transportation.

With the quick-disconnect tire assembly and tow bar device, field transportation can be rapidly completed using only standard towing power.

Heavy-duty structural design

We have innovatively developed a V-shaped hob mounting structure, a pin-and-key positioning technology, and a connection method between the cutterhead housing and the tie rod keyway, enhancing the tool’s ability to penetrate hard rock and ensuring compliance with the all-rock fragmentation requirements in metal mines.

Highly adaptable

With the same modular cutter head, simply by replacing the cutting blades, it’s possible to assemble reaming cutter heads of different diameters, effectively reducing users’ costs associated with repeatedly purchasing cutter heads.

Cutting Head Configuration Table

Compatible models	Applicable Models	Figure number	Cutting head weight	Diameter	Name	Number of hobbing cutters
R80D R80V R80C	R80 Series	RM1.4Z-214B	1.21	1.42	D1.4-6 Cutterhead Assembly (Integral Type)	6
		RM1.4-214B	2.03	1.32	D1.4-8 Cutterhead Assembly	8
		RM2.0-214	2.43	1.98	D2.0-12 Cutterhead Assembly	12
		RM2.5-214	3.36	2.47	D2.5-14 Cutterhead Assembly	14
		XJRM1.5-214	2.57	1.46	D1.5-6 Inclined Shaft Cutterhead Assembly	6
	R120 Series	RM1.4-254	6.68	1.4	D1.4-6 Cutterhead Assembly (Integral Type)	6
R120VD R120D		RM1.4-254B	3	1.35	D1.4-8 Cutterhead Assembly (Integral Type)	8
		RM2.0-254	2.51	2	D2.0-12 Cutterhead Assembly	12
		RM2.5-254	4.88	2.44	D2.5-14 Cutterhead Assembly	14
		RM3.0-254	4.3	2.99	D3.0-18 Cutterhead Assembly	18
	R160 Series	RM2.0-286	5.24	2.05	D2.0 Cutterhead Assembly	12
R160V		RM2.0-286B	6.1	2.05	D2.0 Cutterhead Assembly	12
		RM2.5-286	6.93	2.53	D2.5 Cutterhead Assembly	14
		RM3.0-286	5.61	2.92	D3.0 Cutterhead Assembly	16
		RM3.3-286	8.23	3.3	D3.3 Cutterhead Assembly	18
		RM3.5-286	8.3	3.69	D3.5 Cutterhead Assembly	20
		RM4.0-286	8.65	4.02	D4.0 Cutterhead Assembly	22
R200 R236	R200V R236V	RM5.0-327	13.95	5	D5.0 Cutterhead Assembly	24
		RM6.0-327	24.57	6	D6.0 Cutterhead Assembly	30
		RM4.8-327	26.37	4.83	D4.8 Cutterhead Assembly	28
		RM5.8-327	31.96	5.81	D5.8 Cutterhead Assembly	32
		RM4.5-327	17.73	4.46	D4.5 Cutterhead Assembly	26
		RM5.5-327	21.3	5.48	D5.5 Cutterhead Assembly	30
R40C	R40C	RM-CD-670B	0.62	0.67	CD670 cutterhead	2
R40C	R40C R60 Series	RM1.4-190	0.95	1.4	D1.4-6 Cutterhead Assembly (Integral Type)	5