Heat source
Electric, steam, gas or heat pump. A heat pump condenses water out and reuses the heat; an electric oven vents hot, wet air. Ask which the price assumes.
No DramaBuyer guide · Food & candy
No listing says how evenly air crosses the trays, and that decides whether the rear trolley is still wet when the front one is done.

01
Electric, steam, gas or heat pump. A heat pump condenses water out and reuses the heat; an electric oven vents hot, wet air. Ask which the price assumes.
Cross-flow with automatic reversal, or one fixed direction. Ask for the temperature spread between the tray nearest the fan and the furthest.
Tray size varies by maker. Count times length times width is the loading area you buy.
A timed damper, or a humidity sensor that opens it. Without a sensor the operator guesses.
02
Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.
03
| Require this | A pass looks like |
|---|---|
| One full load of your product on every tray. | End moisture on front, middle and rear trays all within specification. |
| Probes at the fan side and the far side. | Temperature spread inside the contract figure for the whole cycle. |
| Energy meter on the supply. | Kilowatt hours per batch close to the quoted figure. |
04
05
A freeze dryer; warm air shrinks and hardens the structure.
A multi-layer belt dryer, which needs no trolleys.
06
We name the kind of source, how many and when, and never the factory. Listed prices are asking prices, not landed cost. Where we do not hold a fact we say so: that is a GAP, not an estimate.
07
Every machine we source in this area is on the Food & candy page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.
Straight answers
Airflow design, humidity control and heat pump compressor differ, and so does who services it.
Tray area against the quote, tray material, fan reversal, sensor calibration, door seals, and one loaded cycle with a log.
A Declaration of Conformity for that serial number, backed by a technical file, and a food-contact declaration.
Usually you: your name goes on the machine or papers, and you check the conformity file exists.
Contact
Send a machine, a quotation you want checked, or a question. We reply with what we would look at first.
Sent
A person reads every message. You will hear back within one working day.
Not sent
Please email info@nodramachina.com directly and we will pick it up from there.