14X12 China in Denpasar Indonesia gear type coupling shop G-G in Cebu City Philippines esco gear coupling shop Hopper Dredger Machine Sand Dredging Pump with top quality lowest price

14X12  China  in   Denpasar Indonesia   gear type coupling  shop  G-G  in   Cebu City Philippines   esco gear coupling  shop  Hopper Dredger Machine Sand Dredging Pump with top quality lowest price

We – EPG Group the biggest couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086-13083988828


14×12 G-G  hopper dredger machine sand dredging pump

1.Features of G series Gravel Pumps

1.The structure of this ZJS series gravel pump is mainly single-casing and horizontal. The outlet direction can be positioned 360° easy to install.
2. Shaft Components adopt cylinder structure, which is convenient to adjust the gap between impeller and front wearing plate. The shaft uses grease lubrication.
3.Shaft Seal: expeller drive seal, packing seal, and Mechanical seal.
4.Broad Flow Passage & Good Anti-Cavitation Property & Highly Efficient Wear Resistance.
5.Driving Method: V Belt Drive, Elastic Shaft Coupling Transmission, Gear Box Drive, Fluid Coupling Transmission, Variable Frequency Drive Device and Thyristor Speed Control.
6.The wet parts are made of Ni-hard and high-chrome wear-resistant alloys with good anti-corrosive property.
7.Variable speeds and modals to ensure smooth operation. Additionally, Long service life and high operation efficiency offer reliable performance in a tough operating environment.

2.Applications of the Single Casing Pump

The mining gravel pump is used for river course, reservoir desalting, coastal reclamation, stretching, deep-sea mining and tailing acquisition etc.


Max. Power
Clear Water Performance   
Capacity Q Head
Max Solid Passing(mm)
m3/h l/s
6/4D-G 60 36-250 10-70 5-52 600-1400 58 2.5-3.5 378 82
8/6E-G 120 126-576 35-160 6-45 800-1400 60 3-4.5 378 127
10/8S-GH 560 216-936 60-260 18-80 500-1000 65 3-7.5 533 180
10/8S-G 560 180-1440 50-400 13-50 500-950 72 2.5-5 711 178
12/10G-G 600 360-1440 100-400 10-60 400-850 65 1.5-4.5 667 220
12/10G-GH 1200 288-2808 80-780 16-80 350-700 73 2.0-10.0 950 210
14/12G-G 1200 576-3571 160-840 8-70 300-700 68 2.0-8.0 864 241
16/14TU-GH 1200 324-3600 90-1000 26-70 300-500 72 3.0-6.0 1270 230
18/16T-G 1200 720-4320 200-1200 12-48 250-500 72 3.0-6.0 1067 254

4.Gravel Sand Pump Construction Drawing

3.Product Overview

4.Other Related Products


Naipu Main Slurry Pump Models
1.5/1B-AH(R) 1.5/1C-HH 40PV-SP(R) 6/4D-G 3QV-AF 20A-L 10/8R-M
2/1.5B-AH(R) 3/2D-HH 65QV-SP(R) 8/6E-G 4RV-AF 50B-L(R) 10/8E-M
3/2C-AH(R) 4/3E-HH 100RV-SP(R) 10/8F-G 6SV-AF 75C-L  
4/3C-AH(R) 4/3X-HH 150SV-SP(R) 12/10G-G 8SV-AF 100D-L  
6/4D-AH(R) 6/4X-HH 200SV-SP(R) 14/12G-G   150E-L  
6/4E-AH(R) 6/4F-HH 250TV-SP 14/12T-G   300S-L  
8/6E-AH(R) 6S-H   16/14G-G   350FF-L  
8/6R-AH(R) 6S-HP   16/14TU-GH   450ST-L  
10/8F-AH(R) 8/6S-H   18/16G-G      
10/8ST-AH(R) 8/6S-HP   18/16TU-GH      
12/10ST-AH(R) 8/6X-HP          


5.Pump Parts 

Material Description

The Parts have exchangeable  Material selection  Metal (A05, A49, A07),Elastomer(R08, R26 , R33, R55) and Polyurethane (U01)

Metal parts 

1. A05 is a wear resistant white iron that offers excellent performance under erosive conditions. The alloy can be effectively used in a wide range of slurry types. The high wear resistance of alloy A05 is provided by the presence of hard carbides within its micro-structure. Alloy A05 is particularly suited to applications where mild corrosion resistance, as well as erosion resistance is required.

2.A07 Marten-sic white iron with moderate erosion resistance.

3.A49 is suitable for low pH corrosion duties, where erosive wear is also a problem. The alloy is particularly suitable for Flue Gas Desulphu-rization(FGD) and other corrosive applications, where the pH is less than 4. The alloy can also be used in other mildly acidic environments. A49 has an erosion resistance similar to that of Ni-Hard 1.



1.RU08 is a black natural rubber, of low to medium hardness. RU08 is used for impellers where superior erosive resistance is required in fine particle slurries.
2. RU26 is a black, soft natural rubber. RU26 is used for lines where superior erosion resistance to all other materials in fine particle slurry applications.
3. RU33 is a premium grade black natural rubber of low hardness and is used for cyclone and pump liners and impellers where its superior physical properties give increased cut resistance to hard, sharp slurries.
4. RU55 is premium grade black natural rubber, it is suitable for severe erosive fine particle 



OEM Pump Parts:

Except standard parts or material,we also undertake OEM service if you supply us the drawings or samples;we also can do special materials ,such as hastelloy alloy,Ceramic coated parts etc.


Our Workshop Show

We are factory of sand slurry pumps,dredging pumps etc.
We have Mould workshop,Casting Workshop,Machining Workshop,Testing Workshop,Assembly Workshop etc.

Quality Control System

We have about 30 inspectors and We always do the testing before delivery.

Application On Site

Ash slurry in Thermal Power Stations /Iron Ore in Beneficiation Plants/ Aluminum Industries/Lime Mud Slurry
Coal Slurries and Flotation Tailings / Sand Water Mixtures / Liquid of abrasive coarse Grained Solids/ Heavy Mining / Mineral Processing / Coal Preparation / Cyclone Feeds / Aggregate Processing / Fine Primary Mill Grinding /Chemical Slurry Service/ Tailings / Secondary Grinding / Industrial Processing /Pulp and Paper /Food Processing / Cracking Operations / Ash Handling / Pipeline Transport /High Velocity Hydraulic Transport /Food Processing / Explosive Sludge in Metal Smelting /River and Pond Dredging /Heavy Refuse Removal /Large Particle or Low NPSHA Applications /Continous Sump Pump Operation/  Abrasive Slurries /High Density Slurries /Large Particle Slurries /Sump Drainage /Washdown /Floor Drainage Mixing /Iron Ore /Copper /Diamond /Alumina /Coal /Gold /Phosphorite /Steel / Palm /Sugar / Chemical /Power /FGD /Frac Sand Blending /Construction / City Sewage /Dewatering /Crushing /Silver / Mill Liners /Ball Mill /Rod Mill etc.




1. Q: What’s your factory workshops ?
     A: Our factory manufacture include casting, machining process, lathe process, heat treatment, assembly, test and packaging etc.
          Warmly welcome to visit & inspect our factory any time.
2.Q: Could you help us if we don’t know which pump model we need ?
      A: Yes, please tell me your detail requirements, Such as capacity , head ,solid density etc.

3.Q: How about your price?
     A: We are sure our price is factory price, and are of high quality for our long term cooperation.
4. Q: What is your Slurry Pump material ?
    A: slurry pump material high chrome alloy or rubber, super abrasive-resistant metal.
          Shaft material is stainless steel alloy.
5. Q:How does your factory do regarding quality control? 
    A:Quality is priority. Our factory has 15~30 QC.We always attach great importance to quality controlling from the very beginning to the very end.
6. Q: Is it easy for customers to change the parts by themselves ?
    A: Yes, the structure is simple ,customers can change it very easily. We will also supply you maintenance tools for free.
7. Q: How to do if the pump or parts have operation problem within the warranty?
    A:  Tell me details and show me pictures, we will send you solution at once without any hesitation.

Contact US

No.368 Xihu (West Lake) Dis. North Road,HangZhou,ZheJiang ,China.
Contact Person: Karen Tan




The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed EPT parts contained herein are not sponsored, approved, or manufactured by the OEM.


14X12  China  in   Denpasar Indonesia   gear type coupling  shop  G-G  in   Cebu City Philippines   esco gear coupling  shop  Hopper Dredger Machine Sand Dredging Pump with top quality lowest price

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