Remanufacturing

We have been designing and remanufacturing all types of screens in our state-of-the-art manufacturing facility since 1978. You are assured a like-new remanufactured screen in as little as 2 WEEKS!

Step 1 - Evaluation of Equipment

Upon arrival at our facility in Oldsmar, FL, your screen will undergo an initial inspection to verify equipment and condition of screen. The element (spacing and gauge), axle (length and diameter), worn screen and drive (motor, gearbox, sprockets, and chain) information is recorded to manufacture new parts and assist future parts orders. Field adjustments and changes are noted while comments on causes for wear are documented for the engineering of new equipment.

After initial screen inspection, the remanufacturing process takes off in several separate directions and consists of six different steps. In order to complete your screen rebuild and return in the shortest possible time we simultaneously begin manufacturing replacement parts and disassembling screen. Once the screen is broken down and thoroughly cleaned we are able to keep acceptable elements, replace tracks, and work on drive. After this is done the screen is ready to be rebuilt.

Step 2 - Disassembly & Cleaning

After evaluating the screen, we begin to totally disassemble and thoroughly clean it. At this point, we are able to determine what parts need to be remanufactured and repaired. Step two includes: Removal of motor and gearbox, grid is pulled out, inside and outside of frame and entire are steam cleaned and pressure washed. All pivot shafts, spacers, dogbones and damaged parts are discarded and good elements are put through further cleaning and inspection.

A parts tumbler is used to remove solids build-up, while an acid wash is used to finish elements. Once cleaned, "good" elements are sorted and even those with minor disfigurations are scrapped. The straightening of elements is not practical because it elongates and weakens the link and does not fit well with axles. Elements that are not bent or damaged are set aside for the replacement of the grid.

Step 3 - Manufacture of Replacement Parts

When it comes to the decision between which parts should or should not be replaced during the remanufacture process, great care is taken to not use any potentially faulty parts. It is not worth jeopardizing your screen, and our reputation, to save a few dollars.

Once replacement part quantities and dimensions are known, our machinists begin making the axles, spacers and drive unloading sprockets (FS screen only), as well other parts needing replacement. On the Wiese-Flo, the drive shafts and bearings are resurfaced and/or replaced.

All of these items are made for each screen to ensure exact fit while common items machined and laser cut prior to receipt of the screen, in order to process your equipment faster. Often times, the screens we remanufacture have premature wear from parts made by outside shops who did not understand the importance of tolerances on each part.

Step 4 - Replace Tracks and Repair Frame

As soon as the screens shell is thoroughly cleaned our shop begins work on the tracks. Often times tracks are worn prematurely from improper adjustment. If the screen is running too tight or too loose the tracks can be excessively worn. This is one of the major reasons we insist on testing and adjusting our screens for ample time before they leave our shop. Track wear can also be the result of axles, made by others, that are too tight.

All tracks are carefully checked for wear and cut out for replacement. Standard practice is to replace with a heavier 1/4" stainless steel track individually cut and rolled for a precise fit. Some installations have requested heavy duty tracks as a replacement option, but many installations have 10+ years wear on the original 3/16" tracks with no problems.

Broken Track Before Cleaning

Replaced Tracks

Broken Track After Cleaning

Step 5 - Replace or Rebuild Motor and Gearbox

Many of the screens that come back to us have drives that are still operating. Of these projects, most need work. While complete replacement of motor and gearbox is an option, rebuilding is a good way of stretching your budget. After the the drive is taken off and inspected, it is cleaned off and Motor and Gearbox Before disassembled. Internal gears are checked in gearbox while bearings and seals are replaced. Lubricants are replenished and motor and gearbox are tested. After some time running the screen is sandblasted, painted with a primer, and coated with urethane paint for ultra-violet protection and prolonged life.

We rebuild motors and gearboxes as a service to our customers. New Motor and Gearbox Through the years we have gained much experience with these drives and enjoy sending out a good looking, well serviced drive at no additional expense to the customer. Replacement drive are available at additional cost.

Motor & Gearbox Before Cleaning

Motor & Gearbox After Cleaning

Step 6 - Reassembly of Grid and Drive

By now the screen has been thoroughly cleaned and completely disassembled. The tracks have been removed and new tracks have been welded in place. The motor and gearbox have been rebuilt and painted or replaced. All the replacement parts have been fabricated by the machine shop.

The grid is laced with all new spacers, axles, dogbones (replace "rollers"), closure links, and hardware. After the grid is laced the drive sprockets are aligned and inserted, the side panel is attached. The screen has been completely remanufactured and is ready for final adjustments and testing before shipping.

Step 7 - Adjustments and Testing

The screen has been completely remanufactured and is ready for final adjustments and testing before shipping. We take great pride in our remanufacturing efficiency, as it allows us ample time to make final adjustments and test your screen. Generally, each screen is run a minimum of 24 hours to make sure everything is aligned perfectly and all problems have been addressed. We feel that our excessive testing and fine tuning in our shop is much better than having someone fix a problem months later on your site.