The Ralli Wolf SPM 58/59 is a special purpose motor built specifically for offset printing machines, marking a distinct departure from the circuit breaker motors elsewhere in the SPM range. Running on a 90V DC supply, it's designed for a very different mechanical need — extremely low, precisely controlled speed rather than the high-RPM bursts typical of circuit breaker applications.

Under no-load conditions, it draws 0.5A and 45W while running at just 40 RPM. Under full load, current rises to 1A and input power to 90W, with speed settling to 38 RPM — an unusually low speed range that reflects the fine, controlled motion needed in offset printing mechanisms, such as feed rollers, registration systems or ink distribution drives, where precision and consistency matter far more than raw speed.

Its continuous duty rating fits this application perfectly: offset printing machines run for extended production periods, so the SPM 58/59 is built to operate indefinitely at full load without a rest cycle, supporting uninterrupted press runs.

Key Features

• Purpose-built for offset printing machine applications
• Very low, precisely controlled speed: 38-40 RPM
• Continuous duty rating for uninterrupted press operation
• Runs on 90V DC supply
• Compact power draw: 45W no-load, 90W full load
• Suited to precision feed, registration or drive mechanisms

Technical Specification

Application

• Offset printing machine drive and feed mechanisms
• Registration and alignment systems in printing presses
• Ink distribution or roller drive systems
• Printing industry equipment requiring precise, continuous low-speed motion