Turmeric (Haldi) has a long history of use in traditional medicine, and is believed to have a number of health benefits.

DP Impact Pulveriser is the most suitable machine for grinding Turmeric. Dried Turmeric (Haldi) bulbs have less oil content compared to other spices, hence the screenless Impact Pulveriser is suitable for grinding Turmeric. The process of manufacturing turmeric powder typically involves the following steps:

1. Harvesting: Turmeric (Haldi) is typically harvested from the rhizomes (underground stems) of the Curcuma longa plant and then cleaned to remove any dirt or debris.
2. Drying:  Drying helps to reduce the moisture content of the rhizomes and makes them easier to grind into a fine powder.
3. Grinding: Once the rhizomes are fully dried, they are ground into a fine powder using a pulveriser/ pulverizer. DP Impact Pulveriser is the most suitable machine for grinding Turmeric. Dried Turmeric (Haldi) bulbs have less oil content compared to other spices, hence the screenless Impact Pulveriser is suitable for grinding Turmeric.
4. Sieving: The powder is sifted to remove any larger pieces or impurities.
5. Packaging: The ground turmeric powder is then packaged in bags or containers for distribution and sale. 

DP Mini Pulveriser/ Pulverizer, DP Hammer Mill and DP Impact Pulveriser can be used for grinding Turmeric depending on the capacity and fineness required.