1>Zhengzhou Jinma Mining Machinery Co.,Ltd was established in 1976. Our company specializes in manufacturing large and medium-size crusher, sand making machine, ball mill, magnetic separator, flotation machine, mineral processing equipments, and related machines. Our company covers an area of 7000 square meters. Now, our annual export sales about six million USD. It has passed ISO9001:2008 quality management system, CE certification, SGS and BV factory audit.

2>Support & service from Zhengzhou Jinma Mining Machinery Co., Ltd.

1. Jinma provide the design, process diagram and foundation drawings according to clients' request.
2. Clients are welcome to inspect the equipment when the equipment are ready to delivery.
3. Equipment will be delivered with English Manuals and technical drawings
4. Engineers available to service machinery overseas, to make the layout design, foundations, guide the installation, commissioning run test, training workers, etc.
5.The equipment ordered from jinma will be guaranteed within 2 years since the day of purchasing if the problem is due to the equipment’s quality. If there is big quality problem with the equipment, the seller will discuss with the buyer and offer proposals to solve the problems within 72 hours since the notice from buyer.
6. Offer spares for the equipment within 10 years

Here are our company qualifications certificated by related institutions:

Oversea customers come to visit Jinma comoany:

Detailed product description of gold trommel screen 

It is a kind of combined gold mining machine, designed especially for placer gold sand, clay, soil, river sand and alluvial gold sand which contain gold sand and nugget in the raw material, gold wash plant includes sieving, separating through trommel, sluice, water pump, dieelgenerator or diesel engine and extraction gold progress. It is with wheel type chassis, cane driven by vehicles and move easily.

Advantages of  gold trommel screen 

1. The installation angle is small, easy to plug
2. Small footprint
3. Low noise and dust pollution
4. Smooth operation
5. Screening efficiency is high
6. Large output
7. Simple process layout

Different usages of  trommel screen

1) Quarry: gravel, clay, mountain meal, sand, etc.
2) Coal Industry: lump coal, coal dust, coal washing, etc.
3) Gold Mine: gold screening and washing
4) Chemical Industry: sifting calcium oxide, compost
5) Metallurgy, construction, mineral-selecting, etc.

2.Gold separating procedure:

1) Input of raw materials through heavy equipment   

Raw materials inputted through the entrance of the hopper will be pushed into the trommelscreen by the strong water pressure of the shower equipped in the hopper.  

2) Selection and cleaning of raw materials

Raw materials of the trommel screen will be cleaned and selected by the rotation of trommescreen and, by watering of the shower inside, run into the gold dust separate panel.

3) Collecting of gold dust separated

Soil and sands with lighter specific gravity will flow away but gold dusts with greater specific gravity will be staying in the gathering mat to be collected.

The gold trommel screen made by Jinma company:

Trommel Screen Equipment on working site

Technical parameters of gold trommel screen

  Export standard packing or nude packing. Large parts: Plstic sheeting. Small parts: Wooden box.

1>.Pre-sale services: enthusiasm

We provide you with the prophase plan, process flow design and manufacturer equipment according to your special demand.

2>.Sale services: servant
Send technicians to the jobsite for guiding the installation and adjustment, training operators and finishing the check and accept together with you.

3>.After-sale services: faithfulness

To establish long term friendship, we will regularly pay return visit to customers.
Supplying technique, building design, instruction, installation and debugging for free.

4>.We provide one-year warranty to make sure your machine runs consistently.

 We always offering lifelong services and provide spare parts for a long time