Felling Trailers, Inc. has relocated an existing building to make way and expanded the main warehouse to incorporate space for its new fabrication center.
The addition is the first step in Felling Trailers’ goal to streamline the production flow from parts to production to finishing. Construction of the new fabrication center started in early 2017, providing 15,000 square feet (29,000 with the main warehouse) of space for new and existing technologies. With the two buildings connected, it allows for an efficient flow of production parts from the fabrication area, to the warehouse, to the production floor.
The first new technology to call Felling’s fabrication center home was the Mitsubishi 6000 Watt Fiber Laser with a tower automation set-up to run the cell. The Mitsubishi Fiber Laser operates on shop air (shop air is run through a four-stage filtration system, then compressed to 225 psi), to cut material up to ¼” thick. For thicker materials, the laser operates on oxygen.
Equipped with tower automation, Felling Trailers can have up to eight shelves loaded with up to 6,000 pounds of material that can be pulled by the job. Knowing exactly what the tower can hold also allows for added efficiencies when ordering materials. The sheet steel for the laser is ordered in pre-bundled stacks to match the capacity of the tower, eliminating room for error in the loading process.
“The capabilities of the Mitsubishi Fiber laser are more than impressive in comparison to Felling Trailers’ previous CO2 laser. Our CO2 laser could cut 12 ga. steel at approximately 150″ per minute vs. 600″ per minute with the new fiber laser. On 7 ga. material the comparison is 125″ per minute vs. 300″ per minute with the new fiber laser,” said Mark Johnson, Felling’s Manufacturing Coordinator.
Along with speed and precision come other efficiencies such as reduced power usage, approximately $10,000 less in annual cost.
The second new technology to be placed in the fabrication center was the Safan 110-ton Electric Press Brake with an 8’ bed. The bulk of the parts that are fabricated will utilize the Safan’s 8’ bed. The Safan E-Brake’s ability to work four to five times faster than Felling’s other press brakes will, in turn, increase the throughput of parts for the production floor. Another feature of the Safan E-brake is that it only draws power when in use, saving on annual power usage.
The Fabrication Center now houses all three of Felling Trailers’ press brakes.
The Accupress Edge 250 ton press brake and Cincinnati CB-II 350 ton press brake were moved from the front production bays in mid-June with the help of Quick-Way Rigging of Minneapolis, MN. This fall Felling Trailers’ Marvel 2150 Vertical Band Saw and Hyd-Mech S23A horizontal band saw were moved into their places in the fabrication center.
The layout design of the fabrication center was based on the equipment used to complete the processing of fabricated parts. The key goals were to: reduce non-value time inefficiencies, reduce the number of times material was being handled, increase safety and work environment comfort. The location of equipment was based on process flow. For example, the laser processes 30,000 jobs. Twenty-eight thousand of those jobs move on to the press brake, and from the press brake, the finished parts are placed on a conveyor cart where they are transported to a custom conveyor system to the warehouse side of the building. Once on the warehouse side, a sensor triggers a strobe light notifying the material handler to pick-up the finished parts.
“It’s really about machine relation. The shorter the distance a part has to be moved during the process equals less time and movement that is required of the worker to complete the job. Flow is everything. A lot of the material handling solutions and concepts have been custom designed and made by our internal people. We are very lucky to have such a talented staff of custom fabricators,” said Chris Berg, Felling Trailers’ Project Manager.
A two-bridge crane system is used to feed the press brake for larger production part jobs, which reduces the chance of a lifting injury. The second crane feeds the laser parts sorting area reducing the amount of forklift traffic. The third crane system resides over the new saw conveyor system. This placement allows the saw operator to handle the longer, heavier parts while the saw is still producing parts.