basis method for pulp chips and fuel, where it is used for a one-time point estimate of what fraction of the whole is usable fiber (or fuel) and what fraction is wa-ter. As you will note, in the example provided above, the OD basis moisture content can (and will) exceed 100% on occasion â this is NOT an error â it simply re-
Shapers spin slower than routers, usually in the 7-14,000 rpm area and their power demand starts where routers leave off, (around 3 HP). Router tables are welter weights by comparison. It takes two routers to equal one shaper.
Older and smaller routers often rotate at a fixed spindle speed, usually between 20,000 and 25,000 rpm. While these speeds are fine for small router bits, using larger bits, say more than 1-inch (25 mm) or 25 millimeters in diameter, can be dangerous and can lead to chatter.Larger routers now have variable speeds and larger bits require slower speed. cutting speed for mild steel, of 100 ft/min (or approx 30 meters/min) is the same whether it is the speed of the (stationary) cutter passing over the (moving) workpiece, such as in a turning operation, or the speed of the (rotating) cutter moving past a (stationary) workpiece, such as in a milling operation.