Material Hoist Overview
The DOC Material Hoist includes an integrated 4 ton hoist capable of lifting larger, longer loads than a construction elevator. This allows sub-contractors to order longer runs of material, saving labor and installation costs all the way down the supply-chain.
Remote operation of the Hoist and Decks is simple and intuitive, requiring no special training to operate. We also provide detailed consultation during installation going over all aspects of our amazing DOC® High-Rise Material Hoisting system.
The DOC High-Rise Material Hoist can be used in large steel and concrete construction in conjunction with our DOC Retractable Loading Platforms, or alternatively used in wood construction using the DOC Material Basket.
Whether installing in steel or concrete construction, installation is simple, and a whole system can usually be installed within a day. Decks can be placed on sequential floors for complete access, or spread out to the most essential levels, and move upward with the building as construction progresses.
The DOC Material Hoist can be installed on either the roof or inner floor of a high-rise construction building. For roof-mount configurations, counterweights are added to the rear section of the DOC Material Hoist which simply weight the rear end of the hoist down without permanent fixture to the building.
For inner-floor installation, the rear of the DOC Material Hoist is held in place by a series of shore posts wedged between the ceiling and rear outside rails of the hoist. This method is very safe and versatile, allowing our hoist to be installed in a variety of construction types. The DOC Material Hoist can be installed with the resident tower crane, or lifted into position using a suitable mobile crane from the ground.
The DOC Material Hoist requires a 480v 3-Phase 80A electrical service to operate. A power panel is typically located next to the DOC Power Unit near where the DOC Material Hoist is installed.
Hoist Operators do not require Crane Certification in the State of Washington in order to operate the hoist, as the hoist does not transfer loads horizontally. This is fundamentally different than operation of a crane. As stated by the Washington State Division of Occupational Safety and Health, DOC Material Hoist operators “do not need to be certified.”
The DOC Material Hoist is simple and intuitive to operate, thanks to it’s completely wireless remote operation. The operator is free to move around to the best vantage points, whether it is at ground-level, or on the destination floor, for the most comfortable and safe operating experience.
In addition to it’s powerful 4-ton electric/hydraulic motor, the DOC Material Hoist also features an integrated loading platform, so materials can be delivered to the same floor the hoist is located on. The fully-powered retractable deck is operated by a simple In/Out push-button controller, located conveniently on the side of the deck.
||P With Hoist (lbs)
||Safe lifting load, including any rigging, cables, hooks, etc.
||Minimum anchorage/uplift load (lbs.) at support (neg signifies that shoring below is required)
||Minimum reaction/compression load (lbs.) at support
||Maximum pressure (psf) caused by the steel plate and wheels to an area of 2′ x 7′ between the main beams.
|Reactions R1 & R2 are per main beams.
Reactions assume 25% impact and a factor of safety of 1.50 applied at the pick load.