Harrington Hoists, Inc. Releases Revolutionary EQ 3-Phase and SEQ 1-Phase Dual Speed VFD Electric Chain Hoists Harrington Hoists, Inc. is proud to release our revolutionary new line of dual speed VFD electric chain hoists designed for medium to heavy-duty industrial and workstation applications. Our EQ 3-phase and SEQ 1-phase hoists include a unique no-load high speed function that automatically increases hoist speed up to 130% when the load is less than 30% of working load limit.
