• Indian Standard Specifications 807 and 3177 Cranes
• Cranes for periodical maintanace of plant and machinery
• Covers the largest number of cranes used in the industry
• Highest importance is in steel industry important storage

As per Indian Standard Specifications 807 and 3177 Cranes have basically divided into four Classes

Class-I Light Duty:

These are normal maintenance cranes which are not in constant use. Cranes for periodical maintanace of plant and machinery come under this category. These type of cranes have rated life not less than 20 year of 250 days per year and hour working time per day. Their speed are slow and the structures are light.

Class-II Medium Duty:

This class perhaps Covers the largest number of cranes used in the industry. In Workshop, Foundries, Processing Plant , important ware-houses and in fact areas, where a fair degree of activity exists. These

type of cranes have rated life not less than 20 yers of 300 days per year and 1 ½ hour working time per day.

Class-III Heavy Duty:

For Workshops and Production shops, where the cranes, in addition to normal handling work, also become a part of production process. These type of crnes whose highest importance is in steel industry important storage and in some other selected industries. These are for continuous duty operation. These type of cranes have rated life not less than 20 years of 333 days per year and 6 hour working time per day.

• Indian Standard Specifications 807 and 3177 Cranes
• Cranes for periodical maintanace of plant and machinery
• Covers the largest number of cranes used in the industry
• Highest importance is in steel industry important storage

As per Indian Standard Specifications 807 and 3177 Cranes have basically divided into four Classes

Class-I Light Duty:

These are normal maintenance cranes which are not in constant use. Cranes for periodical maintanace of plant and machinery come under this category. These type of cranes have rated life not less than 20 year of 250 days per year and hour working time per day. Their speed are slow and the structures are light.

Class-II Medium Duty:

This class perhaps Covers the largest number of cranes used in the industry. In Workshop, Foundries, Processing Plant , important ware-houses and in fact areas, where a fair degree of activity exists. These

type of cranes have rated life not less than 20 yers of 300 days per year and 1 ½ hour working time per day.

Class-III Heavy Duty:

For Workshops and Production shops, where the cranes, in addition to normal handling work, also become a part of production process. These type of crnes whose highest importance is in steel industry important storage and in some other selected industries. These are for continuous duty operation. These type of cranes have rated life not less than 20 years of 333 days per year and 6 hour working time per day.