Voltstair Tank Lite Heavy Duty Electric Stair Climbing Dolly, 684 lb.

The Voltstair Tank Lite is the middle of the heavy duty range, and for most commercial crews it is the right answer. It carries 684 lbs. on stairs with automatic self balancing and dual drive motors, then packs down to 159 lbs. for transport, against 236 lbs. for the full size Tank.

The Tank or the Tank Lite is the decision most buyers are actually making. Choose the Tank Lite if your heaviest recurring load is under 684 lbs. and you move the machine between sites frequently, because the 77 lb. difference in unit weight is felt on every load in and out of the vehicle. Choose the Tank if you regularly see loads between 684 and 925 lbs. Both share the same self balancing platform, dual motor drive, joystick control, battery endurance, and stairwell requirements, so the decision is capacity and portability, not capability.

Capacity comes from dual 24V 300W motors, covering commercial refrigerators and freezers, most gun safes, vending machines, office copiers and production printers, drum loads, HVAC air handlers, and heavy cased equipment. For reference, NIOSH puts the recommended limit for a two handed manual lift at 51 lbs. under ideal conditions, so this machine is rated at more than thirteen times that figure. Endurance runs 1,400 to 1,600 steps per charge, 87 to 100 flights on a standard 16 step flight. The intelligent loading board adjusts the tilt angle of the load as the unit travels the stairs, holding heavy cargo balanced and controlled through the whole flight, so the operator guides the machine instead of counterweighting the load, which is what keeps a crew productive deep into a long day.

A one finger joystick controller on a wired remote keeps operation straightforward for a trained operator, with simple switching between travel modes, and the integrated braking system holds the unit securely when stopped on a staircase. The Tank Lite handles step heights up to 8.3 inches and needs about a 59 by 59 inch landing to turn a corner, so measure the tightest landing on your route before purchase, because on heavy duty units stairwell geometry decides more jobs than capacity does. Durable aluminum alloy construction carries a foldable handrail and adjustable armrest, non slip non marking independent crawler tracks handle the stairs, operation stays under 70 dB, and the build is IP54 rated against dust and splash. Frame welds carry a lifetime warranty on structural integrity, which on a 684 lb. rated machine is the specification that matters most, with covered parts warranted 180 days from date of purchase, the battery 6 months, all under a limited warranty against defects in materials and workmanship under normal use, and US based support.

Unlike a three person stair carry, the Tank Lite puts one operator behind the controls. Work the payback from the crew you currently send: if a heavy stair job takes three people instead of one at a loaded labor cost of 25 dollars an hour, every hour carries 50 dollars of avoidable labor, and ten heavy jobs a week at one hour each returns about 500 dollars a week, paying for a Tank Lite in roughly eleven weeks. Substitute your own rates and job counts and the structure of the math holds. The damage case runs alongside it, because one commercial refrigerator or one gun safe dropped on a staircase can exceed the price of the machine in a single incident. For commercial kitchen and refrigeration installers, safe dealers, office equipment and copier service companies, moving and relocation companies, HVAC and mechanical contractors, medical equipment providers, facilities and property management teams, and government and institutional maintenance crews, that is the whole argument.