Caterpillar — Eight Engineering Disciplines · One Earthmoving Catalog

Earthworks · paving · lifting · aggregate · piling · drilling · demolition · marine — every discipline mapped to a Tier 4 Final certified Caterpillar machine class with documented key specs.

Disciplines Mapped to Machine Classes

Mass Earthworks

Crawler excavator + dozer + articulated hauler for cut-and-fill, foundation pits and spoil management on highway and industrial pads.

Asphalt & Concrete Paving

Support fleets for paver trains — wheel loaders, motor graders and compactors that keep base course density within MoE limits.

Heavy Lifting Support

Telehandlers and rough-terrain handlers for material placement where crawler crane packages need site-side staging iron.

Aggregate Production

Excavators and loaders feeding jaw and cone lines — sized by bucket fill factor and cycle time against crusher throughput.

Piling & Foundation

Excavator-mounted drilling and material handling for pile pads, kelly-bar support and foundation excavation sequences.

Quarry Staging

Bench loading, stockpile reclaim and haul-road maintenance with ground-pressure and gradeability matched to rock faces.

Demolition & Recycling

High-reach excavator classes with shear and breaker packages for controlled tear-down and concrete recycling yards.

Marine & Port Staging

Wheel loaders and material handlers for bulk berth reclaim, stockyard cleanup and hinterland earthworks.

Technical Requirements by Discipline

Key specifications and standards project engineers of record request when shortlisting Caterpillar classes for a tender appendix. When buyers debate crawler excavator versus wheeled excavator mobility, we map soft-ground ground pressure and dig stability to crawler shoes, and road-travel frequency plus urban staging cost to wheeled packages — neither class wins every site.

Selection note: crawler vs wheeled excavator

Crawler excavator: lower ground pressure on soft pads, higher stability for deep digging depth and rock loading, preferred for quarry faces and mass earthworks where transport trailers are already budgeted.

Wheeled excavator: self-relocates between urban cuts without lowboys, lower total logistics cost on frequent moves, preferred for utility and street work where cycle time between sites dominates.

Selection note: jaw crusher vs impact crusher (primary feed)

Jaw crusher: simpler structure, lower maintenance cost, accepts feed hardness up to Mohs ≤9 — the default primary when throughput and uptime matter more than product shape.

Impact crusher: higher cubic particle ratio for asphalt aggregates and highway base specs, preferred when finished-product shape drives acceptance testing more than raw tonnage.

Discipline Key Spec Standard Caterpillar Class
Mass EarthworksBucket capacity m³ & cycle timeISO 7451EX-class 20–90 t
Paving SupportBlade / bucket match to mat widthEN 500-6 contextMG / WL mid-class
Aggregate FeedBucket fill factor & breakout forceISO 21873 contextEX / WL rock packages
Piling SupportReach & hydraulic flow for attachmentsEN 791 contextEX mid-class + quick hitch
DemolitionReach height m & boom loadEN 13525HR-class 22–50 m
Quarry StagingGround pressure kPa & gradeabilitySite geotech reportEX / WL with HD undercarriage

Need the cross-discipline parameter map?

Request the PDF that maps excavator, loader and dozer classes to earthworks, aggregate and foundation workflows — sized for EPC technical appendices.

Required
Required
Valid email required
Required
Required
Describe excavator class, bucket capacity and site duty cycle