Carriage - Rated by the fork carriage lifting capability, there are four sizes of hook type tine carriages. The hook type blade carriages have been standardized.
Class I carriages are rated for cargo up to 2000 lbs. The carriage bar spacing for Class I is thirteen inches. Class II carriages are rated for cargo as much as 5,550 lbs. Their carriage bar spacing is 16 inches. Class III carriages are rated for cargo up to 10,000 lbs. The carriage bar spacing for this particular class is twenty inches. Class IV carriages are rated for loads up to 15,500 lbs. The carriage bar spacing used for this capacity is 25 inches.
The carriages for pin type forks can be different depending on the maker. Pin mounted tines can vary by the amount of offset between the tine eye and the blade. Carriage capacity would be determined by the carriage pin size and by the tine size.
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