| Customer: |
Tacoma Power and Light |
| Location: |
Cowlitz Falls Dam, Washington State |
| Application: |
Custom dual drum and single drum hoists with motorized hammerhead trolleys; designed to lift two fish screens weighing 24,000 lbs and 7000 lbs. |
| |
Columbia H14000-4A17-L
Dual drum hoist |
Columbia H7000-4A17-L
Single drum hoist |
| Line Pull: |
14,000 lbs (single line) |
7,000 lbs (single line) |
| Line Speed: |
0-12 fpm (single line) |
0-12 fpm (single line) |
| Cable Capacity: |
29’ of 5/8” wire rope per drum |
29’ of 5/8” wire rope |
| Power Source: |
460 VAC 3 phase |
| Special Features: |
This system was designed to allow an operator to lift the fish screens individually or in tandem. Motorized hammerhead trolleys – rated at 6 tons each – double the line pull of each hoist and can travel from 0-10 fpm. Variable frequency drive allows precise speed and torque control; auxiliary radio controls allow remote operation for all functions.
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