The 15-21 is our main production press. Similar in bed-size to the popular SP-15, the 15-21 has the added feature of an adjustable bed, which allows the bed of the press to be raised and lowered depending on the hight-to-paper of the surface being printed. This has come in very handy with type brought back to Canada from Europe, his does not conform to North American type height. One of our projects that involved some tricky issues with type height was Michael Ondaatje's book Tin Roof, production details of which can be found here.
Can-fed ink feed. "Sprayset" — sheet is sprayed with ink setting solution when the delivery tray is returned to the left. Bed adjustable within .240" range. Automatic short travel cylinder trip, "making it unnecessary to travel the cylinder the full length of the bed when proving forms up to 14" long. The full 21" printing length can be obtained by merely traveling the cylinder to the end of the bed" (this sounds like you don't have to adjust a cam). The tray at the right end is for washing rollers. There is a niche in the bed for a plunger solvent can.
What used to be listed here were a couple of SP-15s, both of which I picked up on the cheap (one from a scrap yard, and the other from a local lithographer). I had one at the Greenboathous shop and the other at the college shop for a while, until a trip to Vancouver introduced me to a press that Ryan Mah had bought, but had never been able to get running (due to the 3-phase power required). Months after that visit to Ryan's place, I made him an offer, and after selling the two SP-15s, Ryan's SP-25 Power was on its way to Vernon. Luckily, tdhe shop at the college has native 3-phase, so after some wiring updates in the space, the press is now up and running.