From Raw Mill to Kiln Drive —
Proven Energy Savings, Not Theory
Cement is the industry where LEADGO holds its strongest measured retrofit data: crushers, blowers, ball mills and rotary kilns all have real recorded energy savings behind them.
150+ motors per plant, across four process stages
A cement line carries roughly 30 motors in crushing and pre-homogenisation, 15 in raw meal preparation, 50 in preheating and calcining, and 60 in grinding and dispatch. That population is why plant energy targets turn into a motor selection exercise — and why no single series covers a plant.
Four duty categories, four product lines
Constant speed near rated load, variable speed with frequent starting, high-speed fluid machinery, and multi-stage geared transmission each call for a different machine. Selecting one series for the whole plant gives away most of the available saving.
Savings depend on what is being replaced
Recorded results on LEADGO retrofits range from 8% to over 44% on comparable equipment. The spread is not measurement noise — it reflects the efficiency of the machine that came out. Any figure quoted before a site survey is a guess.
Equipment → LEADGO solution → measured saving
Want to work through a specific machine? Use the selection tool, or read where cement motor upgrades actually pay.
Three upgrades worth costing
Ageing DC kiln drives
A kiln shell 3–8 m in diameter and 50–250 m long, inclined 2–5 degrees, turning at 1–4 rpm on a decades-old DC drive. Efficiency is only half the argument — spare parts for obsolete DC equipment are increasingly unavailable, which turns the question from "should we upgrade" into "when are we forced to."
Multi-stage geared transmission
Ball mills, vertical roller mills and long conveyors driven through gear trains. Removing transmission stages with a low-speed direct-drive permanent-magnet machine has averaged around 20% on LEADGO projects.
High-speed fluid machinery
Blowers and circulation fans are the strongest single case in the plant: conversion of three-dimensional flow centrifugal fans to high-speed permanent-magnet drive has averaged 30.6%.
An honest scope statement
Cement emissions come predominantly from calcination chemistry and kiln fuel combustion. Motor efficiency addresses the electricity-related share, not the process share — it is complementary to combustion-side work, not a substitute for it. What it does offer is the part of a plant's energy programme that is measurable, verifiable and quick to show results, across a population of more than 150 machines.
Want the retrofit potential costed for your line?
Speak to a LEADGO cement industry specialist