The particular sole purpose of darling extractors as the name implies, is to remove honey from the spines without damaging or destroying the honey combs as they be reused. They are mechanical devices used for honey extraction soon after the honey has already been harvested.
They have a drum in which the honey brush is located and then this drum spins at such high speeds that the honey flings away of the combs leaving behind the comb without sweetie while remains intact inside the extraction chamber. Within a nutshell centrifugal pressure is applied for the effective use of this device.
Before the darling is located in the extraction chamber for removal it must be uncapped first, there are several tools which you can use for uncapping the cells, and all sorts of these can be bought from most beekeeping equipment suppliers. You are able to either use that is manual uncapping cutlery or forks sometimes beekeepers prefer to use electric knives to uncap the combs.
All the taken out honey collects at the bottom of the removal chamber and most extractors have a tap at the bottom, in which the accumulated can be drained out there or honey pumps can even be used to remove honey from the extraction chamber.
There are various types of honey extractors available with regards to the use and volume of combs you might plan to extract honey from. These include the tangential and radial extractors and they differ about how the frames are positioned in the extractor's basket. In the redial extractor the frames are usually located with the top facing outwards and compared to the tangential extractors only the one side of the frames faces outwards & redial types are commonly used in commercial honey extraction.
Redial types require less amount of work compared to tangential extractors, because the sweetie combs don't need to be turned over to extract all of the honey in the spines. Honey extractors come in various sizes depending on meant use, for professional bigger extractors are being used because can hold hundreds of frames at one time allowing for gallons of honey to be extracted. But someone starting out in beekeeping can look to use a tiny size extractor that holds 3 to four frames at a time.
A good small scale extractor can cost a couple 100 bucks, but if you don't have the budget yet, you can still make your own and there are great ideas available for you on the net which you can explore. I wouldn't worry too much about the price tag on an extractor as they are reasonable priced by most beekeeping supplies.
Once the extraction process is complete, you want to ensure that your honey is free of fragments from dead bees like hip and legs, wings and other things. The best way to go about this is to filter your honey using at minimum a 400 or six hundred micron filter, they can be reasonably bought for ten dollars or less and most filters have adjustable heads that can fit most bucket dimensions up to a several gallon bucket. These filters can be washed and sterilised and perhaps they are re-usable.