Milton-cat 336D L User Manual download pdf (Page 8)

Robotic Welding. Up to 95% of the

structural welds on a Caterpillar

®

Excavator are completed by robots.

Robotic welds achieve over three times

the penetration of manual welds.

Carbody Design and Track Roller

Frames. X-shaped, box-section carbody

provides excellent resistance to torsional

bending. Robot-welded track roller

frames are press-formed, pentagonal

units to deliver exceptional strength

and service life.

Main Frame. Rugged main frame is

designed for maximum durability and

efficient use of materials.

Undercarriage. Durable Cat

®

undercarriage absorbs stresses and

provides excellent stability.

Swing Bearing. The swing bearing

utilizes cross roller bearings versus the

traditional ball bearing design. The cross

roller bearing design allows for more

surface contact to absorb the stresses

that are a result of the high swing torque

that Cat offers. It provides exceptional

machine stability and reduces machine

pitching during boom down operation.

Rollers and Idlers. Sealed and lubricated

track rollers, carrier rollers, and idlers

provide excellent service life, to keep

the machine in the field longer.

Long Undercarriage. The long (L)

undercarriage maximizes stability

and lift capacity. This long, wide,

and sturdy undercarriage offers a

very stable work platform.

8

Structures

336D L structural components and undercarriage are the backbone of the

machine’s durability.

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