Battery Electro Permanent Magnetic Lifter with Remote Control
Battery powered EPM Lifter is a newly developed high-tech magnetic lifting product developed by PML to suit customers need to wireless operate the equipment and for lifting and transporting heavy pipes or plates within the shop floor. It consists of an electro-permanent lifting magnet body, maintenance-free batteries and a special remote controller. This improves efficiency multi-fold and unlike other Standard Electromagnetic Lifters, it does not require power supply at the time of operation. It can be remotely controlled by a simple handheld control panel, which is included in the box. The HBEP electromagnets are not only easy to operate, but also have the security of permanent magnet lifting device.
PML Bat-EPM Lifters
- PML Battery EPM Lifters are ruggedly built.
- Works just on pulses, no continuous electric supplies needed.
- Compact battery powered system.
- Can be remotely operated.
- Intelligent fail safe technology never lets things fall.
- No bulky wires, cable reels, just charge and go.
- System against switching off accidently.
- No damage to the work piece being lifted.
- Easily transportable.
PML make Bat-EPM lifters are mainly used for handling of steel plates, blocks, press moulds and loading / unloading in machines during handling operation without any effective electrical power. They can hoist moving iron block, and other magnetic material. They are easy for operation, safe in handling. Hence they are widely used as hoisting devices in factories,docks, warehouses and transportation industries. By using them, you can improve your working condition and increase your working efficiency.
The EP magnets for lifting steel plate are widely used in:
- Mechanical processing of positioning and clamping work piece.
- Lifting single steel plate at steel plant or dock.
- Auto cutting machine production line.
- Steel plate pre treatment line.
- Lifting steel at shipyards, steel plants, heavy machinery factories.
PML make Bat-EPM lifters is a smooth blend of EPM technology and powerful batteries comes with a remote control which can control the EPM. The base of the EPM is designed for getting a good grip on the object to be lifted. There is a safety control sensor on the top of the lifter to detect whether the EPM is suspended in air (during lifting) or not and avoids demagnetization of the EPM in suspended state. Batt-EPM solutions for lifting weights upto 500 to 6000 kgs.
- More effective use of available floor space. Eliminates gauging and increasing stacking height.
- Only one operator can move large and heavy work piece safely and easily.
- Labor saving, time saving - improving productivity.
1. High Magnetic Strength
- Provides a magnetic force capable of 16kg/cm2 holding strength.
- Has a higher lifting capacity than a permanent magnet lifter of the same weight
2. Minimal Battery Consumption
- Minimal consumption of battery during lifting operation as electrical power is consumed only in magnetizing (before lifting load) and DE-magnetizing (to release load) process. process takes only about 0.1~2 s.
- The EPM system is properly insulated with 4 layers of insulation avoiding any power leakage.
- EPM technology maintains a constant magnetic force during operation (otherwise magnetic force variation can cause mishaps during lifting).
- On battery discharge or sudden failure of electrical control system while lifting, magnetization will be-retained and the load will not fall off (Magnetization retained until electrical pulse for demagnetization is provided).
- The safety contact sensor on top of Bat-EPM allows magnetization or demagnetization only when chains are slack. This sensor prevents accidental demagnetization when the load is suspended.
- Battery operated making it more mobile.
- Rechargeable battery.
- Remote control to control magnetization and demagnetization operations from a distance.
- Advance low battery notification.
- Non-noisy working.
- No heavy wiring required, no cable reels, transformers.
IMPORTANT FACTS FOR THE OPERATION OF LIFTING MAGNETS (Magnetic Lifters/ Lifting Devices)
LOAD CHARACTERISTICS OTHER THAN JUST WEIGHT MUST BE CONSIDERED IN ORDER TO DETERMINE THE LOAD THAT ANY MAGNET CAN LIFT.
This statement is true for all lifting magnets because they all operate using the same fundamental laws of physics. Magnetic power is often pictured as lines of magnetic force flowing from north pole to south pole. Anything that limits the flow of these magnetic lines of force obviously reduces the magnet’s lifting capacity. There are many important factors, which limit the flow of these lines of force.
1. Surface Conditions
Magnetic lines of force do not flow easily through air. They need iron in order to flow freely; therefore, anything that creates a space or an air gap between a magnet and the load limits the flow of magnetic lines of force and thus, reduces the lifting capacity of a magnet.
The lifting surfaces of a magnet must be clean, smooth, flat and free of nicks and burrs to minimize the air gap between a magnet and the load. Attaching or welding other materials to the lifting surfaces in order to reduce wear should not be done with this magnet because it will reduce the lifting capacity.
Paper, dirt, rags, rust, paint, and scale act the same as air. Also, a rough surface finish on the load creates an air gap between the magnet and load.
The greater the number of lines of magnetic force flowing from a magnet into the load, the greater the effectiveness of the magnet. The thicker the load, the more lines of magnetic force are able to flow. After a certain thickness of load, no additional lines of force will flow because the magnet has reached its full capacity. Thin material (load) means less iron available, and thus fewer lines of magnetic force flow from the magnet into the load. Therefore, the lifting capacity of the magnet is reduced. In some cases, the magnet will attract more than one thin plate of material when set on a stack of thin plates.
DO NOT LIFT more than one plate at a time since the lower plate may not be held sufficiently.
3. Load Alloy
Low carbon steels, such as AISI 1020 steel, are nearly as good conductors of magnetic lines of force as pure iron. However, many other alloys contain non-magnetic materials, which reduce the ability of magnetic lines of force to flow into the load. An alloy such as AISI 300 series of stainless steel is almost as poor a conductor of magnetic lines of force as air.
Type 416 stainless steel is considered magnetic, but it contains enough chromium so that a magnet can develop only one-half as much force on a type 416 stainless steel load as it can on a AISI 1020 steel load.
Also, because of the carbon content, the force developed on cast iron is less than one-half of that developed on AISI 1020 steel (Chilled cast iron further reduces the force to less than one-quarter).
4. Load Length & Width
As the length or width of a load increases, it ceases to remain flat when lifted and the edges begin to droop. This drooping or sagging of the load can create an air gap between the loads and the magnet. This is called peel. If this occurs, the lifting capacity of the magnet is greatly reduced.
For plate lifting, where drooping or slacking/buckling often occurs, rectangular shaped magnets must be positioned so that the length of the magnet is parallel to the width of the load.
PML makes spreader beams of the required sizes to help lifting thin long sheets upto an extent.
5. Position of Magnet’s Lifting Surface
As the position of the magnet’s lifting surface changes from horizontal to vertical, the lifting capacity of the magnet decreases. When the magnet’s lifting surfaces are vertical, the lifting capacity of the magnet is minimum and dependent upon the coefficient of friction between the magnets’s lifting surface and the load.
6. Portion of Magnet Surface In Contact With Load
The full surface of the magnet must contact the load if the magnet is to achieve rated lift capacity.
7. Load Temperature
The temperature of the load can cause damage to the magnet and, if high enough, can even change the magnetic characteristics of the load. We recommend 80*C as the safe operating temperature for these magnets.
1. Place the magnet on the Ferrous Surface in “OFF” position and then make it “ON”. Do not make it ON without keeping it on ferrous surface.
2.The magnet is to be placed on the center, i.e. centering to the center of gravity of the load and then lift.
3. While handling the load, no person should be allowed in the immediate danger zone.
4. Ensure that the magnet is made “OFF” after resting the load at desired place in balance position.
The controller uses the most advanced electronic circuits, non-contact, can quickly set up eight parameters, such as the intensity of magnetization, magnetizing time time etc. using remote control.
Batteries only work in the moment of magnetization and demagnetization. During lifting and handling, the HBEP magnets will not consume any energy. So the HBEP magnet has obvious energy saving advantage.
They can be widely used without power or access to power in convenient form, toxic, radioactive and other environment, through remote control.
The batteries could be worked for up to 7 to 9 days and their charge state can be real-time monitored.
Why PML Battery Electro Permanent Magnets?
45+ years of experience in design and development of Permanent Magnets and Magnetic Systems.
A huge variety of lifting solutions provided.
Custom made magnetic systems Available.
Excellent after sales services.
Services such as magnetic calibration/Audit are available.