If you don't know the model you want,we can help you select the suitable model,pls let me know the below information.
1)What's the raw material you want to conveying?its density(g/cm3) and water content(%)?
2)How many capacity per hour do you need?(t/h)
3)What is the voltage and frequency you need?(in China usually 380V,50HZ,3Phase, or 220V,single phase,50HZ)
4)What's the length and height do you need?(meters)