The TQSF series gravity grading destoner influxes and ameliorates in land and overseas kindred machines excellence used to continuously grade and separate stone from wheat and other grains, beans, and corn. Through pneumatic separation within the grain cleaning machine, fine impurities such as buckwheat, grass seed and dust can be separated from grain.

Gravity Grading Destoner Working Principles:
1. The sieve box which is normally matched with twolayer sieves is based on hollow rubber springs and it is triggered to oscillate by a couple of vibes based on machine execution.
2. The grain is spread with a feeder over the entire width from the machine, and so the product stream is stratified around the preseparation screen based on its specific gravity through the oscillating motion from the screen by the environment flowing with the product from bottom to top. The sunshine contaminants collect at the very top, and also the heavy ones such as the gemstones at the end.
3. The low layer using the heavy contaminants flows upward and it is given towards the final separation zone from the bottom pstoning screen. Final separation from the gemstones in the grain is accomplished with a countercurrent of air.
4. The stonefree product streams around the two screens float on cushions of air, flowing gradually toward the merchandise outlet, after which are released with the squashed rubber valves.
5. To achieve the optimum amount of separation, the inclination from the screens, the environment volume and final separation could be modified accordingly.

Features:
Advanced design and excellent fabricating;
Reliable and excellent stone separation and efficient cleaning;
High specific capacity, low noise and low dust emission;
Easy operation and maintenance;

Packaging

Packaging:all machines covered by plastic film firstly and then packed in wooden case to best protect the machine during long time transportation.

shipping

Shipping: All machines will be sent by sea, if you need other kind of transportation, please inform us in advance. And all machines would be shipped in 7 days after the receipt of payment. Before and after shipping, we will take photos of machines and send photos to client.

Our service                                                                                

1. One year quality warranty for the machine and spare parts

2. Overseas engineers service for installation

3. Whole-life after-sales service and free consultation

4. Customized requirements available

5. Technician guide at the site.

6. 24Hr online service

1.About us     

Henan Institute Of Grain Machinery Manufacturing Co., Ltd. is established driven by the academy of Henan University of Technology. As a large joint-stock enterprise integrating technology, manufacture and sales, our company is specializing in the production of grain and oil machinery, agricultural and sideline machinery. Cooperating with Henan Mechanical Design and Research Institute and Henna University of Technology (Former Zhengzhou Grain College), Henan Institute Of Grain Machinery Manufacturing Co., Ltd. has carried out the research and application of oil machinery, food machinery, grain machinery, construction machinery, and feed machinery, etc.   

we provide a turnkey project of our machinery,including special design,installation, commissioning and training workers.

2.Why choose us

---Advanced equipments,good quality

---Professional skills,all-related services

---High quality and efficiency technology 

---Complete production line,quick delivery

---The biggest grain and oil machine manufacturer and exporter in China

---Exporting to more than 30 countries and regions

FAQ:

1.Q :Are you the factory?

   A:Yes, We are a professional manufacturer for several years.

2.Q: Where is your factory located?  

 A:Our factory is located in Jiaozuo, Henan Province.

3.Q:How about the INSTALLATION?

 A:Engineers available to service machinery overseas,including installation,commission and training,etc.    

 4.Q:Can your company accept the customized product?

  A:Yes,OEM &ODM service is available.We can make the products according to your size,design,color, It will be better if you can send us the product pictures for our reference.

5.Q: How does your factory do regarding quality control?
 A: Quality is priority. We always attach great importance to quality control from the very beginning to the end of the production. Every product will be fully assembled and carefully tested before it's packed for shipment.

Any questions, please don't hesitate to contact us!