There are many different forklift electric motors on the market that are suitable for hydraulic pumps. It can be tough to determine which one is right for your needs. This guide will help you choose the correct motor for your pump. Factors such as voltage, horsepower and amperage will be considered. By following this guide, you can be sure to select the best motor for your needs and get back to work quickly.
How Does an Electric Motor Work?
The electric motor operation is based on the below laws:
Ampere's law says that when an electric current travels through a wire, a magnetic field is created around it.
Faraday's law states that a conductor moves perpendicular within a magnetic field.
An electromagnetic field is created between the stator and the rotor when the electric pump motor runs. Once the electricity goes through the wire, the polarity of rotor sides and stator sides are different.
This rotor spins to align its poles with the magnetic field. The polarity is continuously reversed for keeping the rotation. It means that positive poles change to negative, and vice versa.
The electric motor is part of the forklifts' hydraulic system, compounded by a hydraulic pumpand a cylinder. This system drives fluid into the cylinder and allows the Forklift to move the fork upwards. This device produces a rotational force that is applied to the pump.
How Do I Know if my Electric Pump Motor needs to be replaced?
The motor stops running or runs poorly for different reasons:
Short circuits in the coil, connections, or between phases
A short circuit is the most known problem of the forklift electric motors. It can be caused by:
metal elements that accidentally join the contacts
Cables broken or badly damaged
The lack of insulating varnish of the conductors
Humidity, dust, and water leaks
This problem is caused when the motor works with a load greater than the maximum allowed. Another factor that could cause this problem is a stuck motor shaft. The leading cause of motor failure is a temperature rise. It causes premature wear of the motor and its internal parts.
This problem usually occurs when the line voltage is different in each phase, and the motor heats up. It directly affects the insulation system and the lubrication of the bearings.
How to Check the Condition of the Forklift Electric Pump Motor?
When you check your electric motor, you should always keep a few basic things in mind.
Make sure that the power is off and that the motor is disconnected from the power source.
Visually inspect the motor for any signs of damage, such as cracks, wear, or corrosion.
Check the connections to ensure they are tight and free of dirt or debris.
Test the insulation of the motor windings using a multimeter.
Finally, connect the motor to the power source and turn it on if everything looks good. Consult a qualified technician for a deeper diagnosis if the motor does not start. By following these simple steps, you can ensure that your electric motor is in good working condition or needs to be replaced.
What is the Lifespan of an Electric Motor?
It is not easy to estimate how long an electric motor will last. There is no one reliable formula that can help us figure this out. The life of an electric motor will depend on many factors, such as how often it is used, the working conditions it is subjected to, and the type of maintenance it receives.
Some people say that a used electric motor for a hydraulic system will last between 12 and 15 years under optimal conditions. We believe that it is possible to reach that period with good care. If you are going to buy used forklift equipment, be careful because you can't guarantee how much work it has been through. Always think about replacing essential parts within a reasonable amount of time, as long as you can afford it. It is the most recommended thing to do.
How Do I Choose the Correct Electric Motor for a Forklift Hydraulic Pump?
There are different things to think about when choosing a suitable electric motor. Here below, we will let you know about:
Know what electric motor type your Forklift uses
We first need to figure out what type of electric motor we need. There are two types: direct current (DC) motors and alternating current (AC) motors.
Alternating current motor (AC): It changes the flow of electricity many times every second. This motor type requires an inverter to convert the current from DC to AC.
Direct current motor (DC): This motor works with a simplified circuit. It obtains its energy from a battery and a switch that alternates the current direction.
Electric forklifts are powered with AC and DC using VDC batteries. The DC Motors allow a forklift to run from 96 to 192 volts. It's also good to know that there are four main DC motor types:
Permanent magnet ( PMDC).
The most commonly used forklift motors are the PMDC and wound field types. On the other hand, AC motors can be :
The forklifts use three-phase AC motors that allow 240V operation.
Ensure that new and old electric motors have the same specifications
When replacing an electric motor, ensure that the new motor has the same specifications as the old one. This is important for several reasons. First, the new motor must be able to handle the application's load. Second, the speed of the new motor must match the speed of the old motor. If the new device is not rated for the same load or speed, it will overheat and fail prematurely. The nameplate It is a metallic plate located in the electric motor, and it has the technical specifications of your electrical pump motor, for example:
Number of phases
An AC motor generates most of the heat in the stator windings that dissipates quickly. It avoids electric pump motor damage. Generally, this motor type is stronger than a DC motor.
The permanent magnet has more thermal resistance among DC motors than the wound field type. For this reason, PMDC is preferable in continuous operations and the wound field for intermittent operations.
The AC motors do not have brushes and commutators, so it does not require much maintenance. On the other hand, the DC motors have these parts that periodically are worn out and need replacement.
Forklift battery life
The battery on an AC motor-powered forklift can last longer than one using a DC motor. IT happens given that the AC motor works as an energy regenerator (using the braking system). It recharges the batteries while current flows from the DC battery to the AC motor and vice versa through the inverter.
An AC motor is the more suitable option for integrated systems (lift and steering). The DC motors are also used for forklifts for small steering and forklift systems (permanent magnet DC motor) and system with constant pump speed (wound DC motor).
Check our Online Catalog of New, Used & Rebuilt Forklift Electric Motors for Hydraulic Pumps
At Lift Parts Warehouse, we specialize in everything related to forklift equipment. If you are looking for a new electric motor to start your hydraulic pump, this is the best place you can find. We have an extensive inventory of New, Used, and Rebuilt motors compatible with all the models and the most recognized forklift brands that currently exist in the market.
We know that every client has different needs, but our spare parts catalog is always ready for whatever you need. We've got it if it's an original equipment manufactured (OEM) part or an aftermarket product. And if you are on a tight budget, don't worry because Lift Parts Warehouse offers used and Rebuilt options at the most affordable prices.
To request more information about our Forklift electric motors for hydraulic pumps, do not hesitate to Chat with our team or send us a request. We help you to find the correct one for your Forklift. Our products ship from multiple shipping locations and come with a 1-year limited warranty.
Electric motors are a common sight in all forklift Types. If you're wondering how they work or if you need to replace the electric motor of your Hydraulic pump, read on. In this post, we'll discuss how electric motors work, how to test them, and what factors you should consider when choosing a new motor. We also have a catalog of new, used, and rebuilt electric motors for Forklift hydraulic pumps.