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8‘’Roller Cutter

Classification:

Roller Cutter

8" Roller cutters are e generally used for drilling holes from 800mm to 1400mm in diameter and allow a thrust load up to 80KN.

Key words:

Knock, Drilling

Hotline:

028 - 86939779

Inquiry

Detailed introduction

Graphic Details

Hob model	Tz-8
Brand	Nock
Origin	Clock , class
Origin	China
Dimensions	8 inch,customized
Color	metallic
Bearing Type:	Sealed bearing
Structure:	roller - ball - roller
Seal Type:	metallic seal
Cutting structure:	Carbide teeth（TCI）
Outer row teeth:	chisel-point tooth
Inner row teeth:	chisel-point tooth
Back Cone:	Ball head tooth
Connection:	Saddle
Single hob weight on bit (lb):	20,000-50,000 lb
Maximum weight on bit (lb):	60000 lb
Single hob weight on bit (kN):	89-245 kN
Maximum weight on bit (kN):	267 kN
Maximum linear speed:	300 ft/min
	91.44 m/min
Suitable for rock hardness	Hardness eases f≤12
certification	SGS,ROHS
OEM	accept

roller cutters are available for wide range of application.lt can be matched to types of reverse circulation rigs and cover the drilling range of 850mm -3500mm with maximum penetration rate. These cutters are hydrostatically sealed and can be used in submerged applications without affecting bearings.
Tungsten carbide is feasible for medium to hard rocks, including sandstones, limestones, dolomites, tuffs, granites. etc.

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