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Hydraulic Drive

The hydraulic system offers premium ride quality, a sophisticated control system and quieter operation. A small area outside the elevator hoist-way is required to accommodate the controller and the hydraulic pump unit. This area can be adjacent to the elevator hoist-way or in a remote location. Another advantage to the hydraulic drive system is that manual lowering operations are much easier for those with limited strength or mobility. There is a manual lowering valve on the pump unit which allows the hydraulic fluid to drain from the cylinder, controlling the lowering of the cab in instances of power outages.

GARAVENTA-HYDRO-SCH

General

  • Capacity – 750 lbs or 1000 lbs with standard doors and gates, 1400 lbs. with automatic sliding doors
  • 40′ per minute nominal car speed
  • Up to 6 stops, Maximum 6 landing doors
  • Maximum floor total travel of 50′ with standard swing doors.
  • Pit depth of 8″ is recommended for units with standard swing doors.
  • Overhead clearance of 96″ from upper landing with standard 84″ cab and swing doors.

Equipment

  • Two speed control valve with soft start and stop
  • 1:2 cable hydraulic drive
  • Single stage Hydraulic drive with two 3/8″ aircraft cables
  • Heavy duty cantilever design utilizing 8lbs per foot steel elevator guide rail system
  • Submersible pump and motor assembly for quiet operation
  • Standard power supply is 230 VAC single phase – 60/ 50 Hz. Optional 208 VAC three phase

Controls

  • Collective automatic operation with illuminated push buttons
  • PLC (Programmable Logic Controller) with backup system for lights, locks, gate and/or door operator(s) where equipped and elevator descent
  • Digital position indicator in cab
  • Automatic cab lighting
  • Low oil protection timer circuit
  • Emergency stop and alarm

Safety Features

  • Emergency manual lowering
  • Slack/broken cable instantaneous safety device
  • Upper and Lower terminal limit switches and a Final limit at top and bottom of travel
  • Hoistway door interlocks ensure the car does not move unless all hall doors and cab gate(s) are closed and locked
  • Emergency battery backup light and alarm
  • UL and/or CSA certified electrical control system
  • Automatic bi-directional leveling (Encoder)
  • Solid cab gates with safety switch

Options

  • Pipe rupture valve
  • Keyed hall stations
  • Recessed telephone box or integrated telephone in cab control panel
  • Automatic cab gate operator
  • Automatic hoistway door operator
  • Custom cab sizes and cab heights
  • Buffer Springs – required for hoistways with habitable space under the pit

HYDRAULIC DRIVE BROCHURE


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