Big diameter drill bit

Leading manufacturer of varies kinds of PDC bits in different size, such as: PDC drag bit, PDC anchor shank bit, PDC oil bit etc

Introduction

PDC bit uses PDC as main cutting components, with the excellent wear-ability and impact toughness of the PDC. It has a useful life, high-efficiency, and good performance cost ratio.

PDC bit is mainly used for drilling soft and medium formation, it work under low drilling pressure,midium-low speed,big drainage

Henan zhongmei can supply all kinds of PDC Coring and non-coring bits, PDC sintering matrix bits and PDC anchoring bits. PDC bit can be widely used in the fields of geological exploration, coal mining, water conservancy and hydropower, construction of road and railway.

We also can design PDC bits according to customer requirements, such as different geological condition, special strata and so on.

Theory

 PDC(polycrystalline diamond compact) drill bit is a new product after the hot-pressed and electroplated drill bit recent years.With special hith-frequency weldin techniques.PDC of high wear resistant si welded to the body as cutting edges.PDC bit is mainly used for geological prospecting,coal exploration,water conservancy and power engineering,etc.

Features

1.       It has a super long life. The grinding/consumption ratio of PDC is 20-40 times that of tungsten carbide bit and 10 times that of diamond bit.

2.       It had high drilling speed.

3.       It can be operated with low pressure and low speed.

4.       It has a good gage protection.

5.       It can be used widely, more suitable for drilling in the stratum with formation<7

6.       It has a low cost

PDC Core bit

We can supply different diameter of 2-wings drag bit, 3-wings drag bit, 4-wings drag bit, and 6-wings drag bit.

We specialize in supplying quality drilling equipments for mining, water-well drilling, seismic prospecting for many years. Our products cover the following:

Drag bit are manufactured from forged high quality alloy steel and PDC cutter insert, plus state of art welding technology and multiple precision heat treatment to provide highest penetration rate and longest lifespan at roughest condition.

Drag bits are designed for medium to hard formation and are used in areas that contain a lot of rock and also in the oil field.

Size	Type Pin	Wt. (lbs.)
1 3/4" - 2 1/2"	AW, A-Rod	2
2 5/8" - 2 7/8"	AW, A-Rod	2 1/2
2 3/4" - 3 1/4"	3THD/4THD N-Rod, 2" IF	4
3 3/8" - 3 3/4"	3THD/4THD N-Rod, 2"IF	4 1/2
3 7/8" - 4 3/4"	2 3/8" API Pin	6
4 7/8" - 5 1/8"	2 3/8" API Pin	7
5 1/4" - 5 1/2"	2 3/8" API Pin	8
4 5/8" - 5"	2 7/8" API Pin	10
5 1/8" - 5 1/2"	2 7/8" API Pin	11
5 5/8" - 6 1/4"	3 1/2" API Pin	18
6 1/2" - 6 3/4"	3 1/2" API Pin	19
7" - 7 1/2"	3 1/2" API Pin	21
7 5/8" - 8"	3 1/2" API Pin	23

For more detailed specifications or catalog please feel free to contact with us.

Big diameter drill bit