The Pulverizer must be sized properly for the work it will need to do and the carrier on which it will be mounted.
Based on Type of Work:
The most important item to consider when sizing a pulverizer, is what it will need to do. Refer to the ‘Production’ information provided on the specification sheets to assist in deciding what pulverizer will be required for the application.
Based on Carrier Size:
BTI has assigned a recommended ‘Carrier Weight’ range for each pulverizer. If the operating weight of the carrier falls within this range, the carrier will safely handle this model. If the desired pulverizer falls outside of this recommended carrier weight range, the carrier's lifting capacity and oil flow will need to be verified to ensure a proper fit.
The maximum lifting capacity of the carrier at any position must be equal to or greater than 1.3 times the weight of the pulverizer. Consult the lifting specification of the excavator. The maximum lifting capacity is usually at the lowest when the boom is at full reach. This is the value that must be compared to the operating weight of the pulverizer, multiplied by 1.3.
Oil Flow and Operating Pressure:
A required oil flow range is specified for each pulverizer. Oil flow within this range is adequate for operation. However, for maximum cycle time the carrier should be capable of providing the maximum required flow. Compare the maximum oil flow requirement of the pulverizer with the oil flow capacity of the carrier, and check to ensure the carrier can provide the working pressure as stated in the specifications, otherwise it may be necessary to combine the flow from two pumps in order to provide the required amount.
Carrier Weight Range: