Hydraulic Lift Unit
Hydraulic Lift Unit
Hydraulic Power Units for Elevators
POWER UNIT
Electronically controlled power units are used in the projects of our company.
Thanks to the electronic control;
Great tolerance in oil temperature,
Lower energy costs and power capacity,
The total movement time is shortened by keeping the shift paths short,
Increasing the landing speed up to 50% without requiring additional cost and without sacrificing comfort,
The ability to compensate for load and temperature changes can be easily achieved.
Low Noise, High Comfort
Mechanical pump units designed and manufactured for elevators operate very low noise and provide a very high level of comfort during cruising.
It has a compact structure.
Pump layout is designed to optimize the amount of oil used.
The pump unit is mounted on anti-vibration isolation rubber.
The valve section is very easy to maintain: the modular valve block is easily accessible.
The valve group consisting of aluminum pistons with a hardened surface provides fast return in order to provide high reliability and a smooth cruise.
Up to 45 bar product option
The fact that the valve can be mounted on both sides makes the plan design very simple.
The Hand Pump integrated into the valve group that enables the lift to be moved up in emergency situations is easy to access.
The valve group can be connected to both the right and left sides of the tank.
It offers a wide range covering all kinds of applications (from 8 to 300 l / min, from 1.5 to 29.4 Kw)
Power Unit Accessories
Standard Accessories;
Pulsation damper
High pressure relief valve
High pressure switch
Low pressure switch
Manometer
Hand pump
PTC - high temperature control (thermistor)
Optional Accessories;
Emergency lowering valve
Heater
Thermostat
Oil gauge
Oil level control
Leveling unit
Softstarter
Cooler
Optional Equipments
Softstarter
Automatic leveling additional drive group
In order to reduce the inrush current and prevent the voltage drop in hydraulic elevator drives, the starting of the motor can be performed with star / delta connection.
However, the star / delta connection does not show the effect obtained in industrial motors, in hydraulic lift motors operating in oil. In the transition to the triangle, the engine speed drops significantly due to the absence of a flywheel and the friction resistance of the oil in which it works, and it creates a demurrage current close to direct lifting.
The star / delta connection made with contactors also causes short-term high current peaks electrically. Current peaks can also damage other electronic circuits used in the control system.
The contactor, which is a mechanical product, has a limited life, works noisy and requires periodic maintenance.
Our company performs the start of the motor with electronic Softstarter in high capacity elevators that require large drive motors. The electronic softstarter is mounted on the power-unit instead of the terminal box, and in use, it prevents all the negative effects of contactors.