Heavy Equipment Flashcards
Cat large excavators range from 36 to 90 tons
Attachemnts Avaialble:
Hydraulic Hammers
Grapples
Multi-Processors
Shears
Pulverisors
Compactors
Buckets
Thumbs
Couplers
Rippers
Hydraulic Hammer
Can be used on Excavators, Backhoe Loaders, Excavators
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
Types of Buckets
Clean Up Bucket
Range from 60” Rage (For Small Excavators) to 78” (Large Excavators)
Range from 1.3yd3 to 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
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
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
What is considered a large excavator
75-100 ton
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
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.)
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.
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.
What to consider when seelcting a tooth shape for a bucket
penetration ability and cycle times
Demo Excavator
Better reach
More Durrable
Additional cab protections
Large Excavator
Designed for aggressive digging and fast cycle times
range from 20 to 35 tons
easy to transport to the jobsite
Range from 11 to 18 tons
3 tonne
mini excavator
Attachments:
- Augers
- Compaction Wheels
- Buckets
- Flail Mowers
- Hammers
- Mulchers
- Rippers
- Shears
- Thumbs
- vibratory plate compactor
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.
Mimi Excavator
Range from 1-10 metric tons
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):
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
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.
Benefits of a Standard/Full Sized excavator
Widest spectrum of excavators available on the market today.
