Achieve high productivity and lower operating costs with
the Cat
®
312D Hydraulic Excavator. Unmatched versatility,
improved controllability, easy operation and a comfortable,
redesigned operator station help make the 312D an
industry-leading performer.
Contents
Operator Station . . . . . . . . . . . . . . . . . . . . .3
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . .5
Undercarriage and Structures . . . . . . . . .6
Front Linkage . . . . . . . . . . . . . . . . . . . . . . . .6
Versatility . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Serviceability. . . . . . . . . . . . . . . . . . . . . . . .8
Technology Products . . . . . . . . . . . . . . . . .9
Customer Support. . . . . . . . . . . . . . . . . . .10
Specifications . . . . . . . . . . . . . . . . . . . . . .11
Standard and Optional Equipment. . . . .21
Features
Comfortable Operator Station
Spacious and quiet, this world class cab
lets the operator focus on performance
and production.
Industry-Leading Performance
The 312D with a Cat
®
C4.2 ACERT™ engine
and overall system efficiency delivers
industry-leading productivity.
Maximum Versatility
Easily configure a large variety of work tools
with the Cat Tool Control System.
Proven Reliability
Caterpillar
®
design and manufacturing
techniques provide maximum uptime with
outstanding durability and service life.
Low Emissions Engine
Move material using less fuel with the
Cat 4.2 ACERT engine. It meets Tier 3 and
EU Stage IIIA emissions while maintaining
the power and performance expected
from Caterpillar.
