Mixer type and discharge volume
Twin shaft mixers suit ready-mix and precast; planetary mixers suit small or coloured batches. Ask for discharge volume, not drum capacity.
No DramaBuyer guide · Construction
A batching plant is sold by hourly capacity, but that figure is mixer volume times a cycle time nobody measured with your aggregates and admixtures.

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Twin shaft mixers suit ready-mix and precast; planetary mixers suit small or coloured batches. Ask for discharge volume, not drum capacity.
Ask whether cement, water and admixtures each have their own scale, and how calibration is done on site.
Some offers leave out the cement silos, others the screw conveyors or filters. Count all three in every quote.
Belt-fed plants run continuously; skip hoist plants are cheaper and slower. The code does not say which was priced.
YHZS plants sit on a towable chassis with smaller bins and silos. Choose by how often you will really move.
02
HZS is a stationary plant, YHZS a mobile one, and the number is theoretical output in cubic metres an hour: discharge volume times batches an hour.
03
Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.
04
| Require this | A pass looks like |
|---|---|
| Time 20 consecutive batches of your mix design on a running plant of the same model. | Average cycle, times mixer volume, gives the hourly rate written in the contract. |
| Check each scale with certified test weights at low, middle and full load. | Every reading inside the tolerance written in the offer, recorded per scale. |
| Take samples from the start, middle and end of one discharge. | Slump and air content agree within the limit set before the test. |
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A dry mortar production line, which dries and blends sand instead of adding water.
A self-loading mixer truck or buying ready-mix.
07
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.
08
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
Mostly weighing hardware, control software and structural paperwork. Put scale tolerance, cycle time and silo calculations in the contract.
Price one configuration: mixer volume, bins, silo tonnage, feed type and controls. Otherwise the spread only reflects scope.
The plant needs a machinery Declaration of Conformity. The concrete you sell falls under EN 206 and your own production control.
Usually your company, if you buy directly. Your name goes on the plant or its documents.
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.