How to Dose Metalworking Coolant Concentrate Accurately at the Machine Tool
Metalworking coolant mixed by hand is rarely correct. Too concentrated wastes cost and irritates operators. Too dilute causes corrosion, tool wear, and bacterial growth. Inline proportional dosing with Dosatron maintains the correct ratio automatically.
Dosatron vs Venturi Mixer: Which Should You Use for Metal Cutting Fluid Mixing?
Choosing between a Dosatron and a venturi mixer like the Nimatic or Blaser Jetmix for metal cutting fluid mixing? This guide covers the advantages and disadvantages of each, when to use which, and the real cost of inconsistent coolant concentration on tool life, sump life, and part quality.
Why the “Best” Diaphragm Material Failed at Daihatsu Perodua — And What Replaced It
Daihatsu Perodua Engine Manufacturing was already a customer of ours — we had been supplying them Dosatron units for mixing their metalcutting fluid — so when I visited one day and asked, as I usually do, whether they also use AODD pumps, the conversation went somewhere interesting. Yes, they said. And they asked if we […]
The Real Cost of Getting Metalcutting Fluid Concentration Wrong in CNC Machining
Most machine shops know their coolant should be at “around 5%”. What fewer understand is how far from that target the coolant actually runs on any given machine, on any given day — and what that deviation costs in tooling life, surface finish, corrosion, bacterial contamination, and operator health. Metalcutting fluid concentration is a process […]
How to Measure Bacteria in Metalcutting Coolant — and When to Act
A metalcutting coolant that smells like rotten eggs on Monday morning is already in serious trouble. The hydrogen sulphide odour is produced by anaerobic bacteria that have been multiplying in the sump over the weekend, without agitation, in the absence of oxygen. By the time the smell is obvious, bacterial counts are in the billions […]
Venturi Injector vs. Dosatron for Metalcutting Fluid Mixing: Why Proportional Dosing Wins
Metalcutting fluid mixing seems like a solved problem — take a Venturi injector from brands like Nimatic or Blaser, connect it to your water line, and the concentrate gets drawn in. The result looks like a mixed coolant. The problem is that what comes out of a Venturi injector at 7 bar is not the […]
The Problem a Dosatron Solves That Manual Chemical Preparation Cannot
In any process that requires mixing a concentrated chemical with water at a consistent ratio, the manual method has an inherent problem: it depends entirely on human accuracy, every single time. This is the problem a water-powered dosing injector like the Dosatron is designed to solve — not by replacing human judgment in complex decisions, […]