POWER INSIDE
PUNCHING TECHNOLOGY SYSTEM

After over a year spent on the development and finalization of the Punching Technology System, the introduction of the Power Inside grids has improved the quality and reliability of the whole Midac range. A concrete step towards the development of new batteries that, combined with the new technologies of the automotive world, will make cars more efficient, while reducing the impact on the environment.

Punching Technology System is the first equipment of this kind installed in the world; the combination of high production speed and extreme precision makes it unique in its kind.

Power Inside is a line of new grids featuring a robust design and providing excellent performances.

ADVANTAGES OF THE POWER INSIDE GRIDS

With Punching Technology System, MIDAC produces Power inside grids that grant the batteries to turn on the engine in extreme conditions, reliability and extreme resistance to corrosion.

MORE POWER

Power Inside grids are structurally durable and last longer than traditional grids thanks to a robust design that minimizes corrosion.

MAJOR CONDUCTIVITY

The Power Inside grid, thanks to its design, reduces the internal resistance of the battery facilitating the flow of the current. This provides better performances at engine turn on.

RELIABLE PERFORMANCES

The precision with which the machine produces the grids is such to ensure that the geometry is always the same and therefore the electrical performance provided.

WHY TO CHOOSE
A POWER INSIDE GRID?

Most of the batteries sold into the market use grids produced by expanded metal technology. These grids are submitted to corrosion and expansion phenomena that deteriorate them since the interruption of their function, the engine cranking. This kind of grid looks alike a mesh, however, has not a frame able to offer a better mechanical resistance, essential in a situation where the car, and therefore the battery, is systematically submitted to vibrations due to a never perfect roadway.

Metal expanded technology is today eclipsed by Midac with the adoption of Punching Technology System. Power Inside grids come with a completely different mechanical structure respect the previous ones, with a foursquare frame able to withstand all the mechanical stress and to retain the active material that tends to break down over time. Their design minimizes corrosion, optimizes production reducing its time and increasing the quality of the product. A Power Inside grid offers better performance and longer life.


1 - The frame contains the active material, gives strength and drastically reduces the corrosion

2 - The lack of knots dramatically reduces the growth of the grid and the corrosion

3 - The reinforcement under the flags increases both mechanical and electrical performances

4 - No spikes near the corners (reduction in perforation of the envelope and consequent short-circuit)

5 - Primary threads follow the current path cranking performance are increased

6 - EXPANDED METAL GRID: DETAIL

Detail of the knot: critical area submitted to corrosion and high internal resistance

THE SYSTEM FOR THE PRODUCTION OF
POWER INSIDE GRIDS

A system unique in the world, the first of this kind in the world, the system consists of two machines: the rolling-mill and the press. In turn the rolling mill consists in three melting ovens, casting wheels, rolling-mill assembly and the winder.

The press, the only one in the world that does not use lubricant during processing, is equipped with a mould with the footprint of the grids which is replaced according to the size of the battery to be produced.