Caterpillar Performance Handbook, January 2017, SEBD0351-47

New Nomenclature for Hydraulic Excavator Buckets

Hydraulic Excavators

The diagram below illustrates how today’s nomen- clature aligns with the new, followed by a brief description of each category.

Custom (ie: granite applications)

Current Nomenclature

GP

HD

HDR

New Nomenclature

GD

HD

SD

XD

Description:

Heavy Duty ● Wide range of impact ● Wide range of abrasion material ● Trenching ● Variety of applications ● Pin-on and coupler

Extreme Duty ● High abrasion

General Duty ● Low impact ● Lower abrasion

Severe Duty ● Higher abrasion conditions (ie: shot granite) ● Wear bars, wear plates are substantially thicker and larger for added protection ● Pin-on and coupler

conditions (ie: granite

materials (ie: dirt, loam, mixed compositions of dirt and fine gravel)

quarries with high quartzite content ● Corner shrouds have been

(ie: mixed dirt, clay and rock)

● Pin-on and coupler

added and side wear plates are larger for added protection against

abrasion and gouging wear

● Pin-on and coupler

7-200 Edition 47