A metals separation line upgrade inside a working plant is mostly a sequencing problem. New conveyors, new separators and new electrical have to go in around equipment that is still earning money, in a building that was laid out for something else.

On this one ERS added a full separation stage: an eddy current separator, high-speed classification, screening, and more than a dozen conveyors — HSCS infeed, heavies and waste, screen overs and fines, zorba, and the ferrous discharge and waste lines — each with its own stands, chutes and transfer points.

What the drawings said and what the site allowed were not the same. Two cross-beams for the separator frame arrived fabricated wrong and were cut to size on site. Mounting brackets on the support beams did not line up with the conveyor holes, so new holes were drilled. The zorba conveyor, set exactly to drawing, left a three-inch gap to the separator frame. Ground had to be flattened and packed before the telehandler could reach the waste conveyors — and at one point it was stuck in the mud.

None of that is remarkable. It is what a retrofit is. The question is only whether the crew can fabricate, re-drill and re-route on site without the schedule moving, and whether someone is keeping the whole sequence in their head while the electricians work alongside them.

That is the part ERS carries. Metals processing systems, engineered, installed and commissioned as one line — including into plants that are already running.

A scrap system installation is only partly about the equipment. The rest is what you find when you walk into the building.

At a corrugated plant in Nevada, ERS was installing a complete line — shredder, baler, separator tower, filter and the duct that ties them together. On day one the crew found that the column the layout was referenced from was buried inside a wall, the drawing scale was wrong so nothing could be measured off it, and the support legs sat 12.5 inches away from where the footing drawing put them.

Every layout on the floor had to move 12.5 inches in one direction before anything could be anchored.

It did not stop there. The filter sat higher than its standard adjustable feet allowed, so taller feet had to be ordered. The electrical plan put the control panel where two sub-panels and a transformer already stood. And the site would have no permanent power for three months.

The crew worked around all of it: shims and anchors set to the corrected elevation, the platform and handrail built out, the filter and return air fan laid out, the separator lid match-drilled and fitted on site.

This is the part of a project that never appears in a quotation. Equipment arrives to a specification. Buildings do not. Dust collection and scrap handling systems get commissioned on time because the people installing them can re-measure, re-order and re-route without waiting for a new drawing set.

A dust control system retrofit in a working plant is a different job from a greenfield install. The building is already full, the machines are already running, and nobody is going to shut the line down while the ducting goes in.

At a corrugated plant in Wisconsin, ERS planned to run the new system through existing 21-inch duct. On the first day on site that plan failed — the duct was the wrong size for what the system needed. Rather than stop, the crew walked the roof, traced a second line the plant was no longer using, confirmed it could carry the load, and rebuilt the route around it.

The work went in two phases, in March and May. Phase one put the fan, the stand and the roof penetration in place and tested rotation. Phase two set the CCM® OCT filter, the dust fan and the clean air stand, with the duct route redrawn on site a second time to clear existing ductwork and light fixtures that were not on the drawings.

None of that is unusual. Existing plants are full of things that are not on the drawings. What matters is whether the people installing the system can redesign a route on the roof on a Thursday and still hold the schedule.

This is what ERS does across the US and Canada — trim removal, scrap handling and dust collection systems, engineered as one system and installed into plants that are already running.