What are the power requirements of a construction hoist?
Our Variable Frequency Drive (VFD) Hoists require 480V, 3 Phase, 60 Hz per hoist car. For all applications 100 amps circuit breaker will suffice; cars typically run at 40 amps or less with the counterweight. The power must be supplied at the base of the hoist tower.
What is the size of the base pad required to set a hoist?
The base pad should be a poured concrete pad with a minimum thickness of 12”. The size of the pad varies with the equipment used but some general guidelines are as follows:
Single 6000 lb; 11’ x 14 ‘
Twin 6000 lb; 16’ x 14’
Single 8000 lb; 12’ x 16 ‘
Twin 8000 lb; 18’ x 16’
What is the approximate set-up time for a hoist?
It is very dependent on the specific install; however a initial installation could be as short as 4 days. This timeframe does not include carpentry protection, a loading dock, or any special scaffold runways or special shoring applications.
Who would operate the hoist?
These machines are designed to be operated by one competent person. Licensing requirements vary by state and local Union rules. Please call to discuss.
What are the Inspection requirements for a hoist?
Hoists inspections are required after the initial installation and significant alterations to the hoist (such as jumps). Re-inspections are required every 90 days by both OSHA and the ANSI Code A10.4.
