Rack & Pinion Gate Lifters
From Hydropower
COH specializes in the design, fabrication and installation of Rack & Pinion Gate Lifters. Rack and pinion gate or stop log lifters are used when a down pressure has to be applied on a device traveling in guides. The down pressure can be required because the device being pushed down is lighter than the opposing hydraulic forces, this situation might appear when using wood stop logs, when the guides are damaged and offer resistance to the smooth operation of a gate, or when hydraulic forces are greater than the weight of the gate. The lifter uses rugged steel rams to connect to the gate or stop log, the rams are fitted with heavy duty gear racks rolling up and down a single or multiple set of pinion(s) depending on the capacity requirement.
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Reliable and efficient Rack & Pinion Gate Lift...
Reliable and efficient Rack & Pinion Gate Lifters
When handling stop logs, the rams are also fitted with harpoons allowing the picking and releasing of the stop logs when submerged in water. The engagement or disengagement of the harpoons can be manually operated or motorized. Rack and pinion lifters should be designed to handle the extreme load conditions generated by motor stall torque in case of dynamic asymmetrical jamming of the gate or stop log in the embedded guides.
COH is specialized in the design, engineering, manufacturing, installation and start-up of lifting equipment for hydroelectric projects such as Rack & Pinion Gate Lifters.
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