What is automatic safe load indicator?
Automatic Safe Load Indicator is a safety control unit mounted in the crane’s cabin to alert the operator if the lifted load is against the Crane Rated capacity.
What is Load movement indicator?
Monad Load Movement Indicator (LMI) is a rugged and tested design, which makes it extremely suitable for harsh working environments as well as less demanding situations. It is both simple to set up and use and offers a wide range of configuration options to meet the requirements of excavators.
What is a LMI in a crane?
The Cranesmart Load Moment Indication (LMI) system (Rated Capacity Indication system) displays the crane position, capacity and crane load indication on each hook at all times during operation. The system gives both audible and visual warning in overload or 2-block conditions.
What is level indicator in crane?
Indicates if the crane is level (within 0.1° accuracy), sending a signal for alarm if necessary. The sensor is most useful in situations where there may be ground thaw, sinking mud or extreme wind.
What is limit switch in crane?
Limit switches are electromechanical devices that regulate everything from household appliances to industrial machinery. For an overhead crane, they provide solid, established points of reference for maintaining efficiency, reliability and safety standards.
What is LMI in lifting?
Load Moment Indicator – LMI For hydraulic cranes, the LMI reads its load value using a pair of pressure transducers, which read the cylinder pressures of the lift cylinders. An advantage of an LMI is the weight of the boom is calculated as a part of the load calculation.
How does a safe load indicator work?
A safe load indicator has the capability of detecting the angle, weight of load lifted, and ground radius of any lifting device. It controls the lifting equipment to the level that it tries to keep the machinery functioning as per the manufacturer’s suggested safety charts.
What is safety load?
Safe Working Load (SWL) sometimes stated as the Normal Working Load (NWL) is the maximum safe force that a piece of lifting equipment, lifting device or accessory can exert to lift, suspend, or lower, a given mass without fear of breaking. Usually marked on the equipment by the manufacturer.
What is a crane RCI?
What is a rated capacity indicator (RCI)? RCI systems monitor load in real time to prevent excavators from lifting more than their safe working capacity. Maintaining excavator stability, this protects personnel and assets by warning operators when restrictions are approached.
How level does a crawler crane need to be?
OSHA and ASME both state that a crane must be level to within 1-percent grade.
What is a load chart?
Definition of load chart : a schematic and graphic device to indicate the amount of authorized work yet to be performed by a machine, a group, or any other producing unit in a factory.
What is RCI in crane?
Rated Capacity Indicator – RCI On a Rated Capacity Indicator, the load weight value is calculated by reading the strain on the wire rope. This is done by using a load pin in a sheave, a running line tensiometer (linerider) or a dead-end load cell installed at the becket end.
How do you calculate safe load?
SWL or WLL are calculated by dividing MBL by a safety factor (SF). An example of this would be a chain that has a MBL of 2000 lbf (8.89 kN) would have a SWL or WLL of 400 lbf (1.78 kN) if a safety factor of 5 (5:1, 5 to 1, or 1/5) is used.
How is SWL of Crane calculated?
Formula: SWL (kg) = D2 (mm) For example: Diameter = 25 mm SWL (kg) = D2 (mm) SWL (kg) = D (mm) x D (mm) = 25 x 25 = 625 kg SWL (t) = 0.625 tonnes. The above equation can be reversed to calculate the diameter (D) in millimetres of fibre rope needed to lift a given load.
What is rated capacity indicator?
What is a safe load indicator?
Safe load Indicators have replaced the need for cranes operators to make calculations or rely on gut instinct. Crane safe load indicator devices operate through microprocessors that are connected to the sensor located on the different parts of the cranes. It is not a simple weight and warms indicator.
How does a load indicator work on a crane?
In the cabin of the crane, the operator has access to the displays of all the sensors placed on the crane. Safe load indicators come for different types of cranes including crawler cranes, hydraulic cranes, port cranes, rail cranes, tower cranes, telescopic cranes, and boom cranes.
What are the advantages of low height industrial cranes?
Stock control and stock management have also become quite easy, thanks to safe load indicators that are attached to low height industrial cranes. Movement of stock for weighing purposes is reduced thus reducing a time taken to manage stock and also reducing wastage that we caused during moving of stock.
Why choose crane safety solution?
Our reliable Crane Safety Solution is designed to protect equipment from accidents by alearting the operator for various unsafe operating conditions. Comprehensive Operator’s Training – where operators can practice with the equipment they will use each day.