China 203mm Tricone Drill Bit Steel Mill Tooth Roller Cone Drilling Rig, Find details about China Tricone Bit, TCI Bit from 203mm Tricone Drill Bit Steel Mill Tooth Roller Cone Drilling Rig
ROLLER CONE BITS(IADC) | ROLLER CONE(m/h) | FORMATION HARDNESS | FORMATION | ROCK TYPE | COMPRESS STRENGTH | |
WEM | OBM | |||||
111/124 | 15-30 | 18-33 | Very soft | Soft formation with sticky layers and lom compressive strength | Clay,Silts,Sands | <25MPa |
116/137/437 | 9-15 | 12-18 | Soft | Soft formation with lom compressive strength and high drillability | Claystone,Marl,Lignite,Sandstone,Tuff | 25-50MPa |
136/137/517/527 | 4.5-9 | 6-12 | Medium soft | Soft to medium formation with lom compressive strength interbed with hard layers | Claystone,Marl,Lignite,Sandstone,Silts ,Anhydrites,Tuff | 50-75MPa |
211/217/517/537 | 2.5-6 | 3-6 | Medium | Medium to hard formation with high compressivestrength and small abrasive layers | Mudstone Limestone Anhydrite Sandstone(Calcareous) | 75-100MPa |
211/236/537/617 | 1.5-2.5 | 1.5-3 | Medium Hard | Hard and dense formation with very high compressivestrength but non abrasive | Limestone,Anhydrite,Dolomite | 100-120MPa |
311/347/627/637 | 1-1.5 | 1-1.5 | Hard | Hard and dense formation with very high compressivestrengthand some abrasive layers | Shale(Calcareous),Sandstone(Siliceous) ,Siltstone | 100-200MPa |
637/737/837 | 1 | 1 | Very Hard | Extremely hard and abrasive formations | Quartzite,Igneous rocks | >200MPa |
FAQ
Q: Are you original manufacturer?
A: Yes, we JCDRILL is a official leading manufacture in drilling machinery in China and we have the whole series products you need.
Q: Which payment terms are available to us?
A: T/T term or L/C term. On T/T term, 30% down payment is required in advance, and 70% balance shall be settled before shipment.On L/C term, a 100% irrevocable L/C without "soft clauses" can be accepted.
Q: How long will the delivery time take?
A: Normally mud pump products will take about 3-15 days to produce the ordered machines. Most of the time, we can have an immediate delivery of our regular machines in 15 days.
Q: How about after sales service?
A: 365×24 Year-round Service We are committed to year-round 24-hour service even during holidays, in line with our policy of always providing "a response within 15 minutes and job completion within 24 hours."
Q:Spare Parts When You Need Them
A:We have spare parts centers across continents that stock specialist spare parts. We promise that spare parts will be delivered within 72 hours or no more than one week.