PDC Core Drill Bit for Geological Exploration - Drilling ...

PDC Core Drill Bit for Geological Exploration

Taille : 75–325 mm
Utilisation : Geological Exploration / Rock Sampling / Water Well Drilling
Formation : Medium-hard Formations
Cutter: PDC Composite Cutters
Customization: Size / Cutter Layout / Connection

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Description

Key Features

PDC Core Drill Bit for Geological Exploration

Developed for geological exploration, rock sampling, water well drilling and engineering investigation. The cutting structure uses polycrystalline diamond compact cutters to provide stable rock cutting and reliable core recovery in suitable formations.

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Stable Core Recovery

Optimized cutter distribution helps maintain stable drilling and supports reliable recovery of rock core samples.

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Durable PDC Cutting Structure

Selected PDC cutters provide good wear resistance and consistent cutting performance in suitable formations.

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Wide Size Range

Available from 75 mm to 325 mm, covering different exploration and sampling requirements.

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Customized Configuration

Cutter quantity, cutter size, connection and drill bit structure can be customized according to drilling conditions.

Applications & Formations

Used across exploration, sampling and drilling projects

This PDC core drill bit is suitable for geological exploration, rock core sampling and water well drilling. Other applications include mineral exploration, engineering geological investigation and hydrological investigation.

PDC core drill bit geological exploration scene

Applications

	Exploration géologique Continuous rock cores for geological surveys and subsurface research.
	Rock Sampling Preserving rock core structure for accurate laboratory analysis.
	Water Well Drilling Stable cutting performance for efficient borehole advance.

Suitable Rock Formations

Designed for soft to medium-hard and medium-hard formations, depending on PDC cutter configuration and drilling conditions.

Soil	Red Sandstone	Mudstone	Backfill	Weathered Rock
Limestone	Dolomite	Carbonaceous Limestone	Marl	Shale
Marble	Gneiss	Calcite	Other Medium-hard Rock

⚠️ Note: Actual drilling performance depends on rock abrasiveness, fractures, drilling parameters, cutter selection and operating conditions.

Technical Specifications

Standard sizes and cutter configurations

Standard sizes from 75 mm to 325 mm. Cutter configuration and core barrel can be customized for specific drilling conditions.

Bit Size	Core Barrel	PDC Cutter Configuration	Approx. Weight
75 mm	73 mm	5 PCS / 1304	1.3 kg
91 mm	89 mm	6 PCS / 1304	1.2 kg
113 mm	108 mm	8 PCS / 1304	2.1 kg
133 mm	127 mm	10 PCS / 1304	2.4 kg
153 mm	146 mm	12 PCS / 1304	2.7 kg
171 mm	168 mm	14 PCS / 1304	4.2 kg
200 mm	197 mm	16 PCS / 1304	4.5 kg
220 mm	219 mm	18 PCS / 1304	5.5 kg
245 mm	245 mm	Customized	Customized
275 mm	273 mm	Customized	Customized
325 mm	325 mm	Customized	Customized

How to Select

How to select the right PDC core drill bit

To recommend a suitable configuration, please provide the following information. Our engineers will respond with a factory quotation within 24 hours.

Required Bit Diameter

For example: 75 mm, 91 mm, 113 mm or 133 mm.

Rock Formation

For example: limestone, dolomite, shale, mudstone or weathered rock.

Drilling Application

Geological exploration, rock sampling or water well drilling.

Connection / Core Barrel Size

Please provide the connection specification or a photo of your existing drilling tool.

Factory Customization

OEM & ODM customization for specific drilling projects

Every drilling project is different. Chenghui Drilling customizes each bit based on your project data — from cutter layout to thread connection.

Rock formation, drilling rig, core barrel and drilling parameters all affect drill bit performance. Our engineering team works with your technical data to recommend the most suitable PDC cutter configuration and bit structure.

— Diameter	— Cutter Quantity
— Cutter Arrangement	— Thread Connection
— OEM Logo	— Packaging

PDC core drill bit welding and assembly process

About Chenghui Drilling

Professional drilling tools manufacturer in China

Chenghui Drilling Co., Ltd. specializes in the design, production and supply of PDC drill bits, tricone drill bits, DTH drilling tools and related drilling equipment for customers worldwide.

Every drill bit is manufactured and inspected in our own factory, ensuring stable quality, competitive pricing and reliable delivery for international drilling contractors and distributors.

Supply Mode Factory Direct	Fabrication In-House
Service OEM / ODM	Market Global Export

Chenghui Drilling Tools production workshop

Get In Touch

Need a customized PDC Core Drill Bit?

Share your drilling requirements with our engineers. We will recommend a suitable PDC cutter configuration and provide a factory quotation within 24 hours.

1. Required Diameter	2. Rock Formation
3. Drilling Application	4. Connection / Core Barrel Size

📩 Request Quote
Contact Engineer

FAQ

1
What is a PDC Double Cutter Core Drill Bit?
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A PDC Double Cutter Core Drill Bit uses PDC composite cutters arranged in a special cutting structure to drill rock while recovering core samples for geological analysis.

2
What formations can PDC core bits drill?
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PDC core bits are commonly used in medium-hard formations such as limestone, dolomite, shale, marble and other similar rocks.

3
What sizes of PDC core bits can you manufacture?
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We manufacture PDC core drill bits from 75 mm to 325 mm and provide customized sizes.

4
Can you customize the cutter design?
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Yes. Cutter quantity, cutter arrangement, diameter and thread connection can be customized according to drilling conditions.

5
How can I choose the correct PDC core bit?
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Please provide rock type, drilling diameter, drilling equipment and application information. Our engineers can recommend a suitable design.