Welcome to Ecer
Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Consent Do not consent
China factories

Chat Now Send Email
China factory - Quzhou Sanrock Heavy Industry Machinery Co., Ltd.

Quzhou Sanrock Heavy Industry Machinery Co., Ltd.

  • China,Quzhou ,Zhejiang
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
  1. Home>
  2. Core Drilling Rig>
  3. Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic
China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic
China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic

  1. China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic
  2. China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic
  3. China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic
  4. China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic
  5. China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic
  6. China Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic

Mining Core Drilling Machine Reverse Circulation Drilling Machinery Hydraulic

  1. MOQ： 1Set/Sets per Month
  2. Price： Negotiable
  3. Get Latest Price
Payment Terms L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability 5000Set/Sets per Month
Delivery Time 15-26 work days
Packaging Details Nude package for machines, Wooden box package for spare parts, Or customer demand.
Product name core drilling rig ,core drilling machine
Name borehole drilling rig,water well drilling machine,core drilling rig
Type Core Drilling Rig
Keyword Reverse Circulation Drilling Rig
Power type Diesel
Power(w) 132KW
Drilling depth 500m
Drilling diameter 140-400mm
Lifting force 12KN
Rotary torque 8000-12000 N.m
Rotate speed 40-160rpm
Working pressure 1.7-3.5Mpa
Drill pipe diameter 76/89/102/114mm
Drill pipe length 1.5/2.0/3.0m
Application coring machine,coal，Geological Exploration
Usage Coal,water well.core sample
Feature High Drilling Efficiency,Hydraulic Controlling,Multifunctional
After-sales service provided Online support
Weight 12000KG
Brand Name SANROCK
Model Number SR-500RC
Certification CE ISO 9001:2015
Place of Origin Zhejiang, China

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal

Explore similar products

  1. China Gold Core Drilling Rig Reverse Circulation RC Drilling Rig Soil Investigation

    Gold Core Drilling Rig Reverse Circulation RC Drilling Rig Soil Investigation

    Chat online Now
  2. China Geological Sonic Core Drilling Rig Exploration 200m Depth Full Hydraulic Sonic

    Geological Sonic Core Drilling Rig Exploration 200m Depth Full Hydraulic Sonic

    Chat online Now
  3. China Hydraulic Core Drilling Machine Geological Exploration Borehole Diamond Core

    Hydraulic Core Drilling Machine Geological Exploration Borehole Diamond Core

    Chat online Now
  4. China Reverse Circulation Drilling Rig Power 132KW Hydraulic Core Drilling Rig Crawler

    Reverse Circulation Drilling Rig Power 132KW Hydraulic Core Drilling Rig Crawler

    Chat online Now
  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,D/A,D/P,T/T,Western Union,MoneyGram Supply Ability 5000Set/Sets per Month
Delivery Time 15-26 work days Packaging Details Nude package for machines, Wooden box package for spare parts, Or customer demand.
Product name core drilling rig ,core drilling machine Name borehole drilling rig,water well drilling machine,core drilling rig
Type Core Drilling Rig Keyword Reverse Circulation Drilling Rig
Power type Diesel Power(w) 132KW
Drilling depth 500m Drilling diameter 140-400mm
Lifting force 12KN Rotary torque 8000-12000 N.m
Rotate speed 40-160rpm Working pressure 1.7-3.5Mpa
Drill pipe diameter 76/89/102/114mm Drill pipe length 1.5/2.0/3.0m
Application coring machine,coal，Geological Exploration Usage Coal,water well.core sample
Feature High Drilling Efficiency,Hydraulic Controlling,Multifunctional After-sales service provided Online support
Weight 12000KG Brand Name SANROCK
Model Number SR-500RC Certification CE ISO 9001:2015
Place of Origin Zhejiang, China
High Light hydraulic core drilling rig ，reverse circulation drilling machinery ，mining core drilling machine
Working Principle of Mining RC Core Drilling Rig
The Reverse Circulation (RC) Core Drilling Rig System is designed for efficient, continuous, and high-quality sample recovery in mineral exploration. Its core principle is based on a closed-loop, dual-wall drill pipe system that separates the cutting medium from the sample stream, ensuring uncontaminated and representative core samples.
Dual-Wall Drill String: The system uses concentric drill pipes: an outer pipe and an inner tube. The annulus between them serves as the downward passage for the drilling fluid (typically compressed air or a combination of air and foam), while the inner tube acts as the upward passage for the cuttings and core samples.
Reverse Circulation Flow: The drilling fluid (air) is forced down the annulus between the outer and inner pipes. At the bottom of the hole, it enters the hollow-face RC hammer or bit, which pulverizes the rock.
Sample Recovery: The kinetic energy of the air, combined with a high-velocity upward flow, immediately captures the rock cuttings and small-diameter core pieces. This sample-laden air stream is then evacuated up the inner tube at high speed (typically 15-25 m/s).
Separation & Collection: The high-velocity air and sample mixture reaches the surface and passes through a large-diameter cyclone or a sample collection system. Here, the kinetic energy is reduced, causing the rock chips and dust to fall into a sample bag or splitter. The air is then filtered and released or recirculated.
Key Advantage: This method creates a near-continuous and uncontaminated sample column. Since the sample travels up a sealed inner tube, it is protected from mixing with material from the upper walls of the borehole (caving contamination), providing highly accurate grade control for mineral resource estimation.

Construction/Drilling Process Flow
The operational sequence for a mining RC coring project follows a systematic and efficient workflow:
Phase 1: Site Preparation & Rig Setup
Clear and level the drill pad.
Position the RC drill rig and support equipment (air compressor, boosters, sample system).
Connect all hoses (air, water) and power sources. Assemble the initial dual-wall drill string with the RC hammer/bit.
Phase 2: Drilling & Continuous Sampling
Commence Drilling: The top drive rotates the drill string while the hammer is activated by high-pressure air.
Sample Collection: Drilling proceeds in standard rod lengths (e.g., 6m or 9m). At the end of each rod, drilling pauses.
Sample Retrieval: The sample from the completed rod length is blown through the cyclone into sample bags. Bags are labeled with depth intervals (e.g., 0-6m, 6-12m).
Process Continuation: A new rod is added to the string, and drilling resumes. This process repeats continuously, providing real-time, depth-specific geological data.
Phase 3: Core Drilling Integration (Optional but Common)
For sections requiring intact core for detailed geology and metallurgy, the system can be adapted.
The RC hammer is retrieved, and a wireline core barrel system is deployed through the dual-wall string.
A conventional diamond-tipped core barrel is lowered and used to cut a solid core. After retrieval, RC drilling can resume immediately.
Phase 4: Completion & Demobilization
Upon reaching target depth, the drill string is tripped out of the hole.
The hole is typically sealed or grouted according to environmental and safety regulations.
Equipment is disassembled, cleaned, and prepared for transport to the next site.
Phase 5: Sample Handling & Data Management
Sample bags are logged, weighed, and prepared for dispatch to the laboratory.
Down-the-hole (DTH) geology is recorded in real-time by a geologist observing the cuttings, enabling immediate on-site decisions.
Summary
Mining RC core drilling combines the speed and cost-effectiveness of reverse circulation with the sample quality of coring. Its principle of isolated upward sample transport and its adaptable process flow make it the dominant method for rapid, reliable grade control and resource definition in modern mineral exploration.


Product Description


Drilling capacity
Drilling depth(m)
500
The hole diameter(mm)
140-400
Drill pipe diameter(mm)
76/89/102/114
Drill pipe length(m)
1.5/2/3
Axial pressure(kN)
100
Drive head
Rotation torque(N.m)
8000-12000
Rotation speed(rpm)
40-160
Stroke(m)
1.7-3.5
Rig lifting force(kN)
300
Feeding capacity(kN)
150
Rapid rise speed(m/min)
20
Fast feeding speed(m/min)
40
Power Unit
Rated power/speed(kW/rpm)
132/2400
Tool winch capacity
Lifting force(kN)
20
Air compressor
Air pressure(MPA)
1.7-3.5
Air consumption(m³/min)
17-42
Equipped with hammer(Reverse circulation)
Medium and high pressure series
Crawler chassis
Walking speed(km/h)
2.5
Climbing angle(°)
30
Dimension
Transport(mm)
6450*2100*2700
Working(mm)
4500*4000*7000
Weight
Weight(t)
12


This is just a part of the overseas clients who came to our company to negotiate cooperation, sign contracts and take photos.
We welcome more overseas clients to come to our company for negotiation and cooperation.


Company Profile

Quzhou Sanrock Heavy Industry Machinery Co.,Ltd is founded in 2017, fastly develop as a key enterprise in the industry of mine field, geological exploration, water well field and engineering construction field, with the ability to research, manufacture and market.
Sanrock products now cover more than 10 species such as:
Mining Drilling Rig                           Engineering Drilling Rig
Underground Drilling Rig                          Solar Pile Drilling Rig
Water Well Drilling Rig                            Rotary Drilling Rig
Core Drilling Rig                        Air Compressor
We have many year experience in these fields to offer various solutions, with ISO 9001 and CE certificate to guarantee our quality control.  We also have excellent engineer and sale teams to serve different customers' demand.
We also offer comprehensive after-sales service support, including on-site installation guidance, operation training and regular maintenance services, to ensure that customers have no worries during the use of the equipment.
We Sanrock here wish to hand in hand with our customers,create better future!
This is just a part of the overseas clients who came to our company to negotiate cooperation, sign contracts and take photos. 
We welcome more overseas clients to come to our company for negotiation and cooperation.


1.What can you buy from us?

DTH drilling rig,Integrated DTH DTH drilling rig ,core drilling rig,highway pile driver,solar pile driver ,anchor pile driver,rotary drill rig ,Top Hammer drill rig,Underground jumbo drill rig ,DTH hammer,drill rod,screw air compressor,water well drilling rig,truck mounted water well drilling rig,screw air compressor,piston air compressor,pneumatic rock drill ,drill bit,tricone bit ,spare parts.


2.Do you provide design drawing and customization services for complete machines and drilling tools?
Please provide your technical specifications or project background details, and we are ready to develop a customized proposal based on your requirements.
This includes 2D and 3D design drawings , delivered in various formats including DWG, PDF, STEP, and IGES. 
Our engineering team specializes in developing tailored solutions that meet your specific operational requirements, geological conditions, and performance objectives.


3.How is the shipment? How long dose it take?

A: For large quantity or heavy products, we ship by sea shipping or land shipping. Shipping efficiency depends on country and city you want to ship to. For small and delicate products, we ship by DHL, UPS, Fedex or TNT. You can also appoint shipping method you like before we ship.


4.How is your quality control? A: We have our own experienced QC. There will be strict inspection and testing for every order before shipping out.















































Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Agent,Importer,Exporter,Seller

  • Year Established:

    1992

  • Total Annual:

    15000000-20000000

  • Employee Number:

    500~600

  • Ecer Certification：

    Verified Supplier

  Established in 1992, Quzhou Sanrock Heavy Industry Machinery Co., Ltd. is a manufacturer specialized in the research, development and production of DTH drilling rig, Water well drilling rig, DTH hammer, DTH bits, Drilling Pipe and all accessories about above products. We are located in...   Established in 1992, Quzhou Sanrock Heavy Industry Machinery Co., Ltd. is a manufacturer specialized in the research, development and production of DTH drilling rig, Water well drilling rig, DTH hammer, DTH bits, Drilling Pipe and all accessories about above products. We are located in...

+ Read More

Get in touch with us

  • Reach Us
  • Quzhou Sanrock Heavy Industry Machinery Co., Ltd.
  • No.28, Wenyuan Road, Qujiang District, Quzhou City, Zhejiang Province,China
  • https://www.dth-drillingrig.com/

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement

Trade Alert - Delivering the latest product trends and industry news straight to your inbox.

Home Categories About Us
RFQ Report IPR products Privacy Policy Sitemap

© 2026 Chinax.com. All rights reserved.