Valve type
Time-pressure syringes are cheap but drift as the syringe empties. Auger, jet and volumetric valves hold dot size better. Ask which valve is quoted and what it costs to change.
No DramaBuyer guide · Electronics & assembly
A dispensing robot is mostly its valve and your fluid: the axes are the easy part, and a quote that names the robot but not the valve leaves bead size and repeatability open.

01
Time-pressure syringes are cheap but drift as the syringe empties. Auger, jet and volumetric valves hold dot size better. Ask which valve is quoted and what it costs to change.
Two-part epoxies and silicones need a meter-mix valve and a purge routine before the mix cures in the nozzle.
Seven of fourteen listings we checked were desktop three or four axis units; two added camera vision to find parts; three were six-axis arms. Vision matters when parts do not sit in the same place twice.
None of the fourteen listings stated a repeat accuracy. Get it in writing, with the method used to measure it.
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 |
|---|---|
| Dispense a counted batch on your parts with your fluid. | Dot or bead size measured on samples and inside your tolerance, results recorded. |
| Weigh shots at the start and end of a syringe or cartridge. | Shot weight stays inside your tolerance as the reservoir empties. |
| Pause for your longest break, then restart. | No blocked nozzle or first-shot defect after the pause. |
04
05
A conformal coating machine with spray valves.
A solder paste stencil printer.
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 Electronics & assembly page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.
Straight answers
Desktop axes are similar. Valves differ most, so you can ask for a quote with a valve you already trust fitted to the robot.
The three tests above and a check that programs can be edited offline.
A Declaration of Conformity, technical file and manual in your language.
Your business if it brings the robot in: your name and address on it.
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.