Francis klein & co suppliesoffers md 808 and md 808128 micro step drive modules from slo syn, usa. Micro step drive module series there are various features of micro step drive module series which include; active stabilisation for improved motor performance at critical speeds, micro stepping to 1/128 smooth motor operation and higher current and voltage for greater torque and speed. All slo-syn micro step drive modules are modular drives. These modular drives are structured for designed to working with slo-syn high torque stepper motors. The slo-syn md 808 series of modular drives is dependable and an affordable option ffor a wide variety of oem, single axis and multi axis applications the slo-syn md 808 series of modular drives is dependable and an affordable option. Various technicaleach compact model features of each compact model include; a bipolar pwm drive for maximum torque over a wide range of speed. Designed for dc input, the md 808 and md 808128 drives operate from a single 20 to 80 v dc power supply to help conserve space and increase value. For smooth and increased value tthe md 808 provides up to 20,000 micro steps per revolution for smooth and increased value. For even greater resolution, tthe patented sturdy md 808?128, featuresing up to 25,600 micro steps per revolution is available for more greater resolution . The patented sturdy allaluminium case and efficient thermal design minimises heat sink requirements. Some oother advantageous features include: 8 amp, 80 v dc modular drive, bipolar pwm two phase step motor drive with active mid range stabilisation, full short circuit protection [phase to phase and phase to ground] undervoltage and transient over voltage protection, thermal protection, and optical resistors or jumpers.