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Quick Details

  • Place of Origin: Hunan, China (Mainland)
  • Brand Name: Zhongwei
  • Model Number: ZWT-Y
  • Diameter: 1200mm
  • Kelly box: Bauer Type 200x200mm
  • Teeth/Bits: Bullet teeth / round shank chisel
  • Material: Q345B (main) / 16Mn / 35CrMo / 40Cr / 45# Steel
  • Applied technique: Welding as usual, casting/forging according to customer's requirement
  • Error range: 3-5mm, mini error range, small error range, small random error
  • Applied equipment: For rotary drilling rig/equipment/machine, for construction site/field
  • Applied formation: Hard rock than 80MPa, slightly reinforced concrete
  • Certification: CE, ISO, CNAS, GS, CQC, IAF
  • Manufacuturer: Made in China, Chinese supplier/factory/manufacturer

Packaging & Delivery

Packaging Details Wrapped with plastic film and fixed with iron support.

With Teeth Closely Placed For Hard Rock Formation Core Barrel

 

 

 

Core Barrel

1. Parameter

Product NameCore Barrel With Flat Teeth
MaterialQ345B
TechniqueWelding
Kelly BoxBauer Type 200mm*200mm as usual
TeethWS39T
ModelDiameter (mm)Shell Length (mm)Shell Thickness (mm)Bottom Ring Thickness (mm)Teeth (Pcs)Weight (kg)
ZWT-B 6006001200 164013 520
ZWT-B 7007001200 16 

40

15 580
ZWT-B 800800 1200 16 4018 650
ZWT-B 900900 1200164020 730
ZWT-B 10001000120016 4023  820
ZWT-B 120012001200 16 4029  1050
ZWT-B 14001400120016 4034 1230
ZWT-B 150015001200 16 4036  1350
ZWT-B 160016001200 16 4039 1470
ZWT-B 180018001200204044 1720
ZWT-B 200020001200 204049  2000
ZWT-B 22002200120020 4055  2350
ZWT-B 25002500120020 4063 2850

Customize:

1. Diameter: 500~3000mm

2. Shell length: 800~2000mm

3. Shell thickness: 16~25mm

4. Kelly box: Bauer type(200*200mm, etc.), Sany type(200*200mm, 150*150mm, etc.), Soilmec type(75*75mm, 100*100mm, 130*130mm, etc.), etc.

 

Product NameCore Barrel With Bullet Teeth
MaterialQ345B
TechniqueWelding
Kelly BoxBauer Type 200mm*200mm as usual
TeethWB47K-17
ModelDiameter (mm)Shell Length (mm)Shell Thickness (mm)Bottom Ring Thickness (mm)Teeth (Pcs)Weight (kg)
ZWT-Y 6006001200 164013 520
ZWT-Y 7007001200 16 

40

15 580
ZWT-Y 800800 1200 16 4018 650
ZWT-Y 900900 1200164020 730
ZWT-Y 10001000120016 4023  820
ZWT-Y 120012001200 16 4029  1050
ZWT-Y 14001400120016 4034 1230
ZWT-Y 150015001200 16 4036  1350
ZWT-Y 160016001200 16 4039 1470
ZWT-Y 180018001200204044 1720
ZWT-Y 200020001200 204049  2000
ZWT-Y 22002200120020 4055  2350
ZWT-Y 25002500120020 4063 2850

Customize:

1. Diameter: 500~3000mm

2. Shell length: 800~2000mm

3. Shell thickness: 16~25mm

4. Kelly box: Bauer type(200*200mm, etc.), Sany type(200*200mm, 150*150mm, etc.), Soilmec type(75*75mm, 100*100mm, 130*130mm, etc.), etc.

 

Product NameCore Barrel With Roller Bits
MaterialQ345B
TechniqueWelding
Kelly BoxBauer Type 200mm*200mm as usual
Teeth8.5'' roller bit (IADC 537)
ModelDiameter (mm)Shell Length (mm)Shell Thickness (mm)Bottom Ring Thickness (mm)Teeth (Pcs)Weight (kg)
ZWT-L 6006001200 20404 700
ZWT-L 7007001200 20 

40

4 780
ZWT-L 800800 1200 20 405 880
ZWT-L 900900 120020405 970
ZWT-L 10001000120020406 1080
ZWT-L 120012001200 20408 1420
ZWT-L 14001400120020 408 1500
ZWT-L 150015001200 20 409 1750
ZWT-L 160016001200 204010 1800
ZWT-L 180018001200204011 2000
ZWT-L 200020001200 204012 2300
ZWT-L 22002200120020 4013  2680
ZWT-L 25002500120020 4015 3200

Customize:

1. Diameter: 500~3000mm

2. Shell length: 800~2000mm

3. Shell thickness: 16~25mm

4. Kelly box: Bauer type(200*200mm, etc.), Sany type(200*200mm, 150*150mm, etc.), Soilmec type(75*75mm, 100*100mm, 130*130mm, etc.), etc.

 

2. Brief introduction

Core barrels are used to cut an annular ring in rock or concrete or reinforced concrete. The centre core of the rock or concrete is usually crushed with rock auger. The most important advantage of a core barrel is that it assists to concentrate the torque and crowd force on a small ring of cutting teeth.


3. Types 
a) Core barrel with flat teeth (Applicable for strong rock up to 100MPa or lightly reinforced concrete) 
b) Core barrel with bullet bits ( Applicable for strong rock up to 100MPa or Rock with deep cracks) 
c) Core barrel with roller bits (Applicable for very strong rock formations with compressive strength greater than 100MPa) 

* Other types can be manufactured as per customers' demand.

3. Structure

1. Kelly  box

2. Top plate

3. Main body

4. Bottom ring

5. Flat teeth / bullet teeth / roller bits

 

Packaging & Shipping

A. Packaging

1. Wrapped with plastic film

2. Fixed with iron support or wooden case or Iron case

B. Freight

1. Ocean shipping as usual

2. Air freight or land freight as customers' special demand

3. Land freight to inland countries.

C. Port

1. Changsha Port for FCL as usual

2. Tianjin or Shanghai or Shenzhen Port for LCL or bulk cargo as usual

3. Any port in China as customers' special demand

 

 

Company Information

A. Company

Established in 2008,  Xiangtan Zhongwei Heavy Industry Co., Ltd. is an advanced technological company that specializeds in the R&D, manufacture and sales of various drilling tools, attachments and spare parts.

1. 102 employees (5 engineers)

2. Technical adviser: Dr. Liu Jinggang from Xiangtan University 

    Professor Tang Huanqing from Hunan Institute of Engineering  

3. Supported by State Innovation Found 

4. A member of Hunan Drilling Mechinery Club

 

 

 

B. Products

1. single/double bottom sand drilling bucket with bullet teeth or flat teeth

2. bullet teeth or roller bit core barrel

3. belling bucket/clam drilling bucket/clean out bucket

4. conical or cylindrical auger/CFA auger

5. round shank chisel/flat teeth/roller bit 

6. interlocking or frictional kelly bar

7. single/double wall casing pipe

8. tremie pipe

9. steel wire rope

10. pile breaker

 

 

 

C. Customers

With a group of engineers and skilled workers with years of experience in engineering and construction design, our products are widely recogized and trusted by users. In the domestic market, we are the main supplier for Sany, XCMG, Zoomlion, Yutong, Sunward and Foton. In addition, our products are widely exported to the USA, Nea Zealand, Australia, Brazil, Souteast Asia, Middle East, Brazil, Russia and Afica, etc.

 

 

 

Our Services

 A. Procedure

--- OEM or customized products

--- Track the production

--- Arrange for inspection if needed

--- Take photos before delivery

--- Arrange for customs clearance

--- Track the shipment

--- Send related files to customers

--- Track quality problems if any

--- Collect suggestions from customers

B. Certificate

Certificate of origin, CO

GSP certificate of origin, FORM A

China - ASEAN Free Trade Area Preferential Certificates of Origin, FORM E

Asia-Pacific Trade Agreement Certificate of Origin, FORM B

China and Pakistan FTA Certificate of Origin, FTA
China - Chile FTA Certificate of Origin, FORM F
China New Zealand Free Trade Area of origin, FORM N
China - Costa Rica Free Trade Agreement Certificate of Origin, FORM L
China - Peru FTA preferential certificate of origin, FORM R
China - Singapore FTA Certificate of Origin, FORM X
Taiwan certificate of origin certificate, ECFA

C. Trade Assurance Service by Alibaba 

It can effectively protect your rights: Quality and delivery time of goods, your financial security.

For more infomation, please visit:

 

http://tradeassurance.alibaba.com/bao/buyer_advertise.htm?tracelog=from_home_menu

 

Contact us

Welcome your call or email ~~~

M: 86-15773205067  or  M: 86-15575893122

P: 86-0731-58535812  |  F: 86-0731-58535989

Email: wrdcb@foxmail.com

     

         tanannica             annicatan        8615575893122

         http://www.zwdrillingtools.com          

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China (Mainland) | Manufacturer, Trading Company
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