High Efficiency Low Malfunction Drilling Core Barrel

Basic Info

Model NO.	RB600/800/1000/1200/1500/1800/2000/2500/3000
Shell Length	1500mm
Shell Thickness	20mm for Shell, 40mm for Bottom Ring
Teeth Type	Bullet Teeth
Formation	for Hard Rock Formation
Rock Type	Metamorphic Rock, Tuff, Limestone
Rock Hardness	Below 90 MPa
Trademark	RIGPA
Origin	China
HS Code	8431432000
Production Capacity	5000

Product Description

Advantages:

1. Main material: Q355B & 40# steel from steel manufacturer of the leading level in China
2. Technologists' regular investigation on construction sites help to set the teeth properly.
3. Many experiments on the sites help to design some new type drilling tools.
4. Rich experience of providing drilling tools for rotary drilling rigs of Baue, Sany and other famous brands.

Rotary drilling tool is one of the most important parts in rotary drilling construction. It directly affects the construction quality, efficiency and cost. The two main functions of rotary drilling bit are guiding and drilling. There is no good or bad drilling tool type. According to different geological types, strength and construction technology, the proper type of drilling tools should be selected to make the most of its function and effect.

Parameter:

Name	Rotary drilling tool
Type	Double bottom double cut drilling bucket		Clam drilling bucket	Drilling auger	Core barrel
Shell/flight length	1200mm		1200mm	1500mm	1500mm
Shell/flight thickness	20mm		30/40mm	20/30mm	20/50mm
Teeth type	Bucket teeth	Bullet teeth	Bucket teeth / bullet teeth	Bucket teeth / bullet teeth	Bullet teeth	Roller bit
Rock type	Silt, grave, clay, soft rock	Gravel, cobble, boulder, mud stone, sedimentary rock	Clay, silt, plastic rock, dense gravel, cobble, sedimentary rock	Gravel, boulder, soft rock	metamorphic rock, tuff, limestone	Granite, basalt, diabase, quartzite, marble
Rock hardness	Below 500KPa	Below 40MPa	Below 30Mpa	Below 30MPa	Below 90MPa	Below 280MPa
Feature	Widely and frequently applied		High efficiency and easily unloading	For dry piling and casing construction	For very hard rock, to carry out the rock core

Rotary drilling tools are mainly divided into the following types:

1. Double bottom double cut drilling bucket: a standard drilling tool for rotary drilling rig. When applied for below 500KPa total or strongly weathering rock layer, flat bucket teeth would be used as the cutting bits for drilling buckets; When applied for below 30MPa gravel, cobble and boulder layer and total or strongly weathering sedimentary rock layer, bullet teeth would be used.

2. Clam drilling bucket: high drilling efficiency and easily unloading the slag, especially suitable for piles of smaller diameter. It is widely applied in China for clay layer, plastic rock layer, dense gravel and cobble layer, and slightly hard sedimentary rock layer, etc.
3. Core barrel: with all kinds of carbide cutting bits around the bottom of the shell, the core is broken at the joint crack, and taken out of the hole with the core barrel. When applied for below 90MPa, bullet teeth would be used as the cutting bits for the core barrels; When applied for above 60Mpa, roller bits would be a better choice as the cutting bits for the core barrels.4. Auger, previously as a standard drilling tool for rotary drilling rig, nowadays is gradually replaced by other drilling tool types in China, because of the low unloading performance, and low drilling performance for hard rock layer. However, augers are still suitable for dry piling construction and casing drilling construction, and gravels, boulders and total or strongly weathering rock layer.5. Belling bucket: for improving the bearing capacity of the pile bottom.

6. Clean-out drilling bucket: for furtherly cleaning out the slag from the pile bottom.

***Casing, as a supplement for drilling tools, is for protecting the pile wall from collapse in loose formation, and prevent groundwater into the pile, and benefits the decrease of pile gradient. Casing consists of single wall casing and double wall casing. Casing elements include casing driver, casing, casing shoe, etc.

In accordance with the complicated construction requirement, we have produced more than the above mentioned types of drilling tools. Here is some samples as below:

For any advice about selection of rotary drilling tools, please email us

Production of rotary drilling tools
The production of rotary drilling tools must be carried out in strict accordance with the process standards. The process quality control work should be done well. The self-inspection, mutual inspection, general inspection system should be checked, and the quality records should be kept timely, accurate, clear and complete to ensure product quality

Shipment and package of rotary drilling tools:

1. Package: iron support and wrapped with plastic film
2. Transportation: by sea, land and air.
3. Main ports: Manzhouli, Tianjin, Qiangdao, Shanghai, Yiwu, Taizhou, Shenzhen, Guangzhou, Ruili, Pingxiang, Horgos, etc.
4. Delivery: Fast and timely delivery.

Our products at construction sites:

1. Technologists' regular investigation on construction sites promotes product optimization and innovation.
2. Many experiments on the construction sites help to design some new type drilling tools.
3. RIGPA rotary drilling tools with high and stable quality has been highly recognized by the customers, and widely introduced to other customers.
4. When the rotary drilling rig is working, the operator has to observe and master the geological structure cross-sectional view of the working area, the viaduct cable line, the building construction, etc.

FAQ
Q1. Are you a manufacturer?
Yes. Welcome to visit our factory.
Q2. Can you help to supply what your factory doesn't produce?
Yes, if we can help you.
Q3. Can you offer advice on how to choose the proper type?
Yes. We can get professional suggestion from our technologists.
Q4. How do you control the quality stability?
We maintain the equipment regularly and employ skilled workers.
Q5. Will you reply promptly to after-sale problems?
Yes. We seek long-term cooperation.