QUESTIONS LISTS
FOR CWD OVERHEAD CRANE
Dear customers:
CLESCRANE design reference standards are all from CMAA 70-2020
Your information:
Key question 2:
How many times are expected to be lifted during the busiest hour?
*
CLESCRANE Design Crane Classifications:
CLASS C (MODERATE SERVICE)
This service covers cranes which may be used in machine shops or paper mill machine rooms, etc., where service requirements are moderate. In this type
of service the crane will handle loads which average 50 percent of the rated capacity with 5 to 10 lifts per hour, averaging 15 feet, not over 50 percent of the lifts at
rated capacity.
CLASS D (HEAVY SERVICE)
This service covers cranes which may be used in heavy machine shops, foundries, fabricating plants, steel warehouses, container yards, lumber mills,
etc., and standard duty bucket and magnet operations where heavy duty production is required. In this type of service, loads approaching 50 percent of the rated capacity
will be handled constantly during the working period. High speeds are desirable for this type of service with 10 to 20 lifts per hour averaging 15 feet, not over 65 percent
of the lifts at rated capacity.
CLASS E (SEVERE SERVICE)
This type of service requires a crane capable of handling loads approaching a rated capacity throughout its life. Applications may include magnet,
bucket, magnet/bucket combination cranes for scrap yards, cement mills, lumber mills, fertilizer plants, container handling, etc., with twenty or more lifts per hour at or
near the rated capacity.
CLASS F (CONTINUOUS SEVERE SERVICE)
This type of service requires a crane capable of handling loads approaching rated capacity continuously under severe service conditions throughout its
life.Applications may include custom designed specialty cranes essential to performing the critical work tasks affecting the total production facility. These cranes must
provide the highest reliability with special attention to ease of maintenance features.
Key question 3:
Whether you need spreader?
Functions of crane:
CLESCRANE Standards:
1.
Sound light alarm
2.
Long travel limit
3.
Full frequency control
4. Monitoring unit
5. Towline power supply / Festoon system for trolley
6.
Long travel motor is SEW
7.
Lifting motor is ABB/SEW
8.
Gearbox is SEW
9. Aseismic Floodlight
10. Lifting point of girder
11.
End stop for long travel
Pls understand that additional functions may increase the cost.
Thank you very much for your patience for this list, please send the list to
inquiry@clescrane.com , we will
get back to you as quickly as possible!