Our factory has two kinds of sweet potato washing drying grading equipment
Bubble washing→high pressure sprays&brushes→ brushes&dryers →grader
Standard model:
Fully stainless steel model:
Here are some questions our customers have asked that might help you
1. What is the time of delivery and update your offer?
30 days after 50% deposit received.
2. Could you quote the spare parts that you consider we have to include in this purchase?
Yes, but we will send some spare parts along with the machine, including：
A set of bearings
5 pipes of the hoist
5 pipes of the grader,
Each section of the chain of the elevator and the grader
So there is no spare parts to be purchased here for the time being
3. Regarding the 304 model, which parts are exactly stainless steel? The whole machine or just certain parts?
Not the whole machine. The parts are not 304 stainless steel mainly including:
Classifier chain and brush chain, axis, sprocket are carbon steel.（Stainless steel is easy to stretch）
Brushes are nylon.
Roller elevator and transfer belt are PVC, water pipe is PE, the nozzle is copper.
But the chain in the water tank is stainless steel.
4. What are the main grades of sweet potato size?
Group 1：under 25mm 2.25~35mm 3.36~45mm, 4. 45mm+
Group 2: Under 35 mm 2: 36~45mm 3: 46~55mm 4: 56~65mm 5: 65mm+
5. If the dryers system use any hot equipment?/Do the air blowers blow hot or cold air?
No, the the dryers is working by normal temperature air, so there will be still moisture left, if you want 100% dry we also can make it by replace the blue dryer with electronic heating system.
6. Are the brushes good to not harm the sweet potato skin?
The brushes don't scratch the skin of sweet potatoes, we also use same brushes for tomatoes so don't worry.