Details
Key features & technical data
- Separate supply of oil and air to the tool holder
- Air pressure: up to 10 bar
- Oil viscosity: between 10 and 100 mm²/s
- Power supply: 400 V AC or 24 V DC
Technology
Technical data and selection
The 2C system is the MQL answer for machines running tools with different coolant channel diameters at the same time. That is precisely the case simpler systems do not cover: they are matched to one channel diameter and deliver the wrong dose to every tool that deviates.
| Parameter | Value |
|---|---|
| Oil volume, adjustable | 5–500 ml/h |
| Oil viscosity | 10–100 mm²/s |
| Spindle operation | single and multi spindle |
| Tools | same or different coolant channel diameters, simultaneously |
| Application | CNC machining centres, transfer lines, milling machines |
Source: DropsA manufacturer data, retrieved 31 July 2026 – 2C. The figures in the respective datasheet are binding.
A 1:100 control range
5 to 500 ml/h is a ratio of 1:100 — the widest range in DropsA's MQL programme. It is the technical answer to mixed operation: a small drill and a large milling cutter on the same machining centre differ in oil demand by exactly that order of magnitude. A system with a narrow range forces you either to flood the small tool or to starve the large one.
The viscosity window of 10 to 100 mm²/s is narrow by contrast, and deliberately so: an oil has to atomise finely, and thicker oils form larger droplets that do not cross the coolant channel. How viscosity grades are defined and what the figure refers to is explained in our article on NLGI and ISO viscosity classes.
Where it is used
DropsA names CNC machining centres, transfer lines and milling machines. The common factor is the tool change during a running program: as soon as a machine changes its own tools, oil demand changes with every tool — and the system has to follow without intervention.
Looking for the right product?
We support you with selection, design and quotation – oil & grease, for every application.