Calcining: included or not
Raw gypsum must be calcined to stucco before forming. Some quotes assume you buy stucco; others include the calciner. Ask in writing.
No DramaBuyer guide · Construction
A gypsum board line is a long thermal plant priced like a machine, and two quotes for one output can differ tenfold because one includes the calciner and dryer.

01
Raw gypsum must be calcined to stucco before forming. Some quotes assume you buy stucco; others include the calciner. Ask in writing.
The multi deck dryer is the biggest energy user. Ask fuel, decks, length and fuel use per square metre.
Speed and board thickness set annual output. Ask for the speed at each thickness, not only at the thinnest board.
Ask about the paper splicer, edge folding and additive dosing. Weak paper handling stops the line.
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 |
|---|---|
| Visit a running line the supplier built, on your board thickness. | The line runs at the quoted speed for a full shift with logged dryer temperatures. |
| Take boards from that line to an independent laboratory. | Results meet the properties you will declare under EN 520. |
| Read fuel and power meters over one shift. | Use per square metre inside the figure written in the offer. |
04
05
Buy boards. A line only pays at high, steady output.
An AAC block production line.
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 Construction page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.
Straight answers
In dryer efficiency and board quality at speed. Compare fuel use per square metre and tested boards.
Burner safety, dryer temperature logging, cutter accuracy and board samples tested to EN 520.
A machinery declaration for the line and documents for the burners. The boards need their own route under EN 520.
Usually your company, when you buy direct. Your name goes on the machine or its papers, and you check the conformity file.
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.