Konecranes Crane Advisor

Please describe your application in 4 easy steps

Step 1: Industry

Select your industry type

Automotive

Power

Paper and Forest

Mining

Metals Production

Petroleum and Gas

General
Manufacturing

Waste to Energy and Biomass

Other

Step 2: Capacity

Select your maximum lifting capacity

Step 3: Span

Select your span in:

Meters or Feet

Step 4: Choose your duty class

Select your crane usage classifications as per:

FEM/ISO or CMAA??

FEM CLASSIFICATION

CLASS M3 – STANDBY OR INFREQUENT SERVICE

This service class covers cranes which may be used in installations such as powerhouses, public utilities, turbine rooms, motor rooms and transformer stations where precise handling of equipment at slow speeds with long, idle periods between lifts are required. Capacity loads may be handled for initial installation of equipment and for infrequent maintenance.

CLASS M4 – LIGHT SERVICE

This service covers cranes which may be used in repair shops, light assembly operations, service buildings, light warehousing, etc., where service requirements are light and the speed is slow. Loads may vary from no load to occasional full-rated loads with two to five lifts per hour, averaging ten feet per lift.

CLASS M5 – 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 5 meters/15 feet, not over 50 percent of the lift at rated capacity.

CLASS M6 – 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 5 meters/15 feet, not over 65 percent of the lifts at rated capacity.

CLASS M7 – 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 M8 – 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.

CMAA CLASSIFICATION

CLASS A – STANDBY OR INFREQUENT SERVICE

CLASS B – LIGHT SERVICE

CLASS C – MODERATE SERVICE

CLASS D – HEAVY SERVICE

CLASS E – SEVERE SERVICE

CLASS F – CONTINUOUS SEVERE SERVICE

Standby
or Infrequent

Light service

Moderate Service

Heavy Service

Severe Service

Continuous
Severe Service

Standby
or Infrequent

Light service

Moderate Service

Heavy Service

Severe Service

Continuous
Severe Service

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