Milton CAT 365C L - Manual (Page 10)

Carbody Design. The advanced carbody
design stands up to the toughest
applications.
• Modified X-shaped, box-section
carbody provides excellent
resistance to torsional bending.
• Upper structure weight and stresses
are distributed evenly across the full
length of the track roller frame.
• Robot welding ensures consistent,
high-quality welds throughout the
manufacturing process.
Upper Frame. Rugged main frame is
designed for maximum durability and
efficient use of materials.
• Robot welding for consistent,
high-quality welds.
• Outer frame utilizes curved side
rails, which are die-formed, for
excellent uniformity and strength
throughout the length.
• Box section channels improve
upper frame rigidity under the cab.
• Boom tower and one piece main
rails are constructed of solid,
high-tensile strength steel plates.
• New boom foot design transfers load
more efficiently with less stress in
critical areas.
• Reinforced lift cylinder and swing
drive mounts increase structure
durability in rock and quarry
applications.
Cross-roller Bearing. The 365C L
swing bearing is a cross roller type,
with 54 mm (2.13") diameter rollers.
The cross rollers have a much greater
contact area than ball bearings,
providing increased stability and
longer life.
Track Roller Frames. The track roller
frame is made of thick steel plate that
is bent into a U-shape and welded to
the bottom plate to create a box structure.
The box structure design provides
increased rigidity and impact resistance.
Variable Gauge Undercarriage.
The long variable gauge undercarriage
is standard, providing a wide, stable base
for operating, or a narrow gauge for
reduced shipping width. The track roller
frames are bolted to the carbody, and
can be placed in two positions.
10
Structures
The 365C L structural components are the backbone of the machine’s durability.