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Wood-Mizer's invention of compact, portable saw mill made possible one-person, on-site lumber milling. The Indiana company stays close to customers and woodworking roots; running the mill in the photo is Wood-Mizer's president. |
Wood-Mizer offers more than 80 different saw mill models. "There's a lot of commonality between certain models, but that's still a lot of variety for our manufacturing operations and production scheduling," stresses Heidlage.
To minimize work in process, "everything we cut on the laser is a short run quantity, because there's no setup times or lost production for part changeover," he notes. "How many pieces we run is also keyed to how much storage space we have assigned in the welding department for that particular part," he explains. "We laid out the welding department so parts are stocked right where the fixtures are. Basically, we've got a lot of welding cells set up there."
The CNC laser allowed Wood-Mizer to redesign its parts for simpler fixturing and assembly, according to Heidlage. "You can do tabs and slots and just don't need an elaborate fixture to hold things together," he explains.
The plant produces to order and locks its production schedule about two weeks out. "If a guy orders a saw mill, we'll deliver it to him in about three weeks," says Heidlage. While parts are laser cut in small batches, the plant processes one order at a time from welding on. "We run a kit of parts through welding, painting and assembly, everything needed for that one saw mill," he states.
Besides its own production parts, the plant does some contract laser cutting for outside companies, Through the end of 2004 it also cut parts for a sister company, Las-Tec. Wood-Mizer's experience with the CL-6 led Las-Tec to order an identical CL-6 laser for its Indianapolis-area plant. "They make articulating lawnmowers for golf course and turf mowing and are expanding into the commercial market," says Heidlage. "They have a patented way of linking and articulating multiple rotary deck mowers so they follow the land contour and don't scalp the top of hills."
The transfer of work to Las-Tec is allowing Heidlage to move other in-plant work to the CL-6. "We've already taken 30 hours a week of work off other machines," he notes.
Heidlage has used the laser to do some creative problem solving. One outside customer had a 3/4" part that Wood-Mizer would flame cut, edge finish, then send to a machining center to make precision holes. When steel costs took a jump, 3/4" plate went up exponentially over all other sheet steel, he says. To try to trim costs, the customer wanted to make a design change to 5/8", but Wood-Mizer doesn't stock that thickness.
Wood-Mizer's solution was to laser cut two pieces - one out of 1/4", the other out of 3/8" - then weld them together. "Now we cut everything on the laser, eliminating edge finishing and hole machining," says Heidlage. "The cost per piece dropped by over 75 percent."
Heidlage turned to the laser for even greater savings when Wood-Mizer needed 27 additional trays for an automated parts storage system. The German manufacturer wanted thousands of dollars for the trays, he says. "I said, 'Forget it, we'll make our own.' We cut them on the laser, then bent them up. It cost us $280 total for all 27 trays."
Wood-Mizer likes to buy American where costs will permit, says Heidlage. He recounted his frustrations when shopping for the laser. An import laser company quoted a price $150,000 higher than CINCINNATI, but said it was negotiable. "I told them, just give me your best price, but they wouldn't commit. CINCINNATI said here's the price - and it was a good price. They're honest and up-front with you. We like doing business with people like that." |