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Flashcards in Heavy Equipment Deck (25)
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1

Cat large excavators range from 36 to 90 tons
 

Attachemnts Avaialble:

Hydraulic Hammers

Grapples 

Multi-Processors

Shears

Pulverisors

Compactors

Buckets

Thumbs

Couplers

Rippers

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Hydraulic Hammer

Can be used on Excavators, Backhoe Loaders, Excavators

3

Attachements Used for Concrete Formwork of Flatwork

Buckets (for use on an excavator)

Buckets (for use on a loader)

Cold Planars

Compactors

Couplers (for an excavator)

Couplers (for a loader)

Material Handling Arms

Hydraulic Wheel Saws

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Types of Buckets

Clean Up Bucket

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Range from 60" Rage (For Small Excavators) to 78" (Large Excavators)

Range from 1.3ydto 3.66yd3

Range from 1300 to 4800 lbs

Used for cleaning, grading and finishing of ditch cleaning but also have truck loading ability of a general duty bucket.

Can be used in finish work in dirt, loam and a loose mixture of dirt and fine gravel

Tooth syles is Bolt-on Cutting Edge

6

Digging Bucket for a mini excavator

Rage from 9" to 35"

digging in soft to moderate ground

Range in capacity from 0.6 ft³ to 7.4 ft³

Tapered bucket sidewalls allows for easier unloading od sticker materials 

7

Bucket for ditch cleaning

Designed for cleaning ditches, sloping, grading and other finish work.  

For low-impact materials like topsoil and clay

Ranges from 42  to 78"

Small and medium excavators

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What is considered a large excavator

75-100 ton

9

What to consider when selecting a bucket

  • Truck Size: Ideal to load a truck in 4-5 passes when using a large excavator
  • Impact Condiions: How diffiicult it will be to get material out of ground
  • Material Density: How much a bucket load would weigh, in ideal conditions, when 100% full.
  • Durrability: General Duty to Extreme Duty
  • Edge Configuration: Spade edge vs Straight edge
  • Tooth Spacing
  • Tooth Size

10

CAT's Durrability Catagories of Buckets

General Duty (General excavation and truck loading of dirt, loam and gravel

Heavy Duty (general construction applications in a wide range of materials with a small aggregate size)

 Severe Duty (small to medium sized materials like sandstone, shot limestone, shot granite and the like.)

Extreme Duty (aggressive digging and loading applications in broken slag, limestone, broken granite, basalt, hematite and iron ore.)

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EDGE CONFIGURATION

Spade edge: Offers better penetration and faster cycle times in harder materials. Used when breaking ground is the primary requirement.

Straight edge: Configurations provide for better cleaning and finishing work. Used in soil work, site development and trenching.

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Tooth Spacing

Lower tooth count is used in hard-to-dig rock. It results in better penetration, just like the spade edge. Used in quary work.

Tighter tooth spacing used in soil work. Bridging between the teeth and higher tooth density results in a better floor and reduces the time spent finishing the trench.

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What to consider when seelcting a tooth shape for a bucket

 penetration ability and cycle times

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Demo Excavator

Better reach

More Durrable

Additional cab protections

15

Large Excavator

Designed for aggressive digging and fast cycle times

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range from 20 to 35 tons

 easy to transport to the jobsite

17

 

Range from 11 to 18 tons

18

3 tonne

mini excavator

Attachments:

  • Augers
  • Compaction Wheels
  • Buckets
  • Flail Mowers
  • Hammers
  • Mulchers
  • Rippers 
  • Shears
  • Thumbs
  • vibratory plate compactor

19

Dual Mode Selection for a choice of diesel or electric power. This innovative machine delivers zero emissions from electrical supply, low noise, superior power and control. Easily change from diesel to electric power.

20

Mimi Excavator

Range from  1-10 metric tons 

21

Association of Equipment Manufacturers (AEM) lumps crawler excavators into three general size categories. What are they?

  • Mini or Compact (0 – 6 metric tons; or <13,227 pounds)
  • Midi (6 – 10 metric tons; or 13,227 – 22,046 pounds)
  • Standard/Full-Size Crawler Excavators (10 – 90 metric tons; or 22,046 – 198,416 pounds):

22

Benefits of a Compact/Mini excavator

small excavators that get into the tight places

Certain Class 1 and Class 2 trucks can haul compact excavators without requiring the driver to have a Commercial Drivers License (CDL) 

3-4 metric tons (6,613 – 8,818 pounds) are the most popular

Extremely versatile, performing in-building work, tight subdivision sewer repairs, water line installs and foundational repair that may not require the size of a conventional excavator

23

Benefits of a Midi/Mid-Size excavator

Provides digging and lifting capabilities more in line with their full-sized counterparts, but are still compact enough that they provide advantages in transportation and jobsite access.

24

Benefits of a Standard/Full Sized excavator

Widest spectrum of excavators available on the market today. 

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