Excavators and Attachments: The Complete Buying Guide to Machines, Tools, and Industry Applications

Excavators are tracked machines built for below-grade digging, precision material removal, and demolition work that a skid steer or wheel loader cannot reach, using a rotating boom and bucket to dig, lift, and place material below the machine’s own footprint.

Coastal Machinery and Attachments carries excavators from compact to full-size platforms alongside the full range of excavator attachments, from buckets and hydraulic thumbs to breakers, grapples, augers, compaction wheels, and rippers. Choosing the right excavator starts with matching operating weight and dig depth to your job site, and this guide walks through machine specifications, attachment types, and industry applications to help you make that decision.

Choosing Between a Compact and Full-Size Excavator

The biggest factor in choosing an excavator is job site access and dig depth, not just horsepower. A compact excavator trades reach and lift capacity for the ability to work on tighter, more finished job sites than a full-size machine can access.

Tracked machines typically 6,000 to 10,000 lbs operating weight, sized to work on residential and small commercial job sites without the footprint of a full-size machine. Digs to depths up to roughly 10 to 12 feet. Best for utility trenching, small commercial excavation, and site work where full-size access isn’t available.

Heavier tracked machines ranging from roughly 20,000 to 50,000+ lbs operating weight, built for reach, lift capacity, and dig depths beyond 15 feet. Best for commercial excavation, large-scale utility installation, demolition, and heavy material handling on open job sites.

Excavator Specifications by Machine Class

The table below compares dig depth, operating weight, hydraulic flow output, and primary application across common excavator classes to help you match the right machine to your job.

Machine Class
Dig Depth
Operating Weight
Hydraulic Flow Output
Primary Application
Compact Excavator
10 to 12 ft
6,000 to 10,000 lbs
20 to 28 GPM
Small commercial site work, utility installation
Mid-Size Excavator
12 to 16 ft
10,000 to 20,000 lbs
28 to 35 GPM
Commercial excavation, foundation work, larger utility runs
Full-Size Excavator
16 ft and beyond
20,000 to 50,000+ lbs
35 to 50+ GPM
Large-scale excavation, demolition, heavy material handling

Browse current specifications and pricing for every model in our full excavator inventory.

The right attachment turns an excavator into a dedicated tool for digging, breaking, grading, or material handling. Below is a breakdown of the core excavator attachment types Coastal Machinery and Attachments carries.

Buckets

Digging buckets remove and place soil, gravel, and demolition material, with bucket width and profile matched to trenching, grading, or general excavation work.

Hydraulic Thumbs

Hydraulic thumbs pair with a bucket to grip irregular material like rock, brush, and debris, turning a digging attachment into a material handling tool without a full attachment swap.

Breakers

Hydraulic breakers fracture concrete, asphalt, and rock on demolition and site prep jobs where digging alone will not clear the material.

Grapples

Grapples clamp and lift brush, logs, and demolition debris that a standard bucket cannot secure, common on land clearing and cleanup jobs.

Augers

Excavator augers bore round holes for footings, posts, and utility installation at depths a skid steer auger cannot reach.

Compaction Wheels

Compaction wheels pack backfill in trenches and utility lines in a single pass, reducing settling before paving or final grading.

Rippers

Rippers tear through hard-packed soil, shale, and root systems ahead of digging, common on land clearing and site prep in rocky or root-bound ground.

Excavators and Attachments by Industry

Excavators and their attachments serve a wide range of industries beyond general construction. The table below breaks down common job types and the attachment categories that support each one.

Industry
Common Job Types
Key Attachments
Construction
Foundation digging, site grading, footing prep
Buckets, compaction wheels, hydraulic thumbs
Utility
Water, sewer, and conduit trenching, pole installation
Buckets, augers, compaction wheels
Demolition
Structure teardown, concrete and asphalt removal
Breakers, grapples, buckets
Land Clearing
Brush and tree removal, root and stump extraction
Grapples, rippers, buckets
Agricultural
Drainage and irrigation digging, pond and ditch work
Buckets, augers, rippers

Explore Excavators and Attachments

Ready to dig deeper into excavator attachments, including options sized for a mini excavator, or explore our full equipment lineup? Browse the categories below.

Excavator Attachments

Buckets, breakers, grapples, and more for every excavator class.

Excavators Buying Guide

Mini Excavator Attachments

Buckets, thumbs, augers, and more sized for compact platforms.

Mini Excavator Attachments Buying Guide

Shop All Excavators

Browse the full excavator inventory by class and specification.

Shop Excavators

Not sure which excavator class fits your job, or which attachment matches your machine’s hydraulic flow? Our team provides pre-sale compatibility guidance and can confirm which excavator and attachment configuration fits your job site, your dig depth requirements, and your budget before you order.

Frequently Asked Questions

Compact excavators typically weigh 6,000 to 10,000 lbs and dig to depths up to roughly 10 to 12 feet, making them suited to residential and small commercial job sites. Full-size excavators range from roughly 20,000 to 50,000+ lbs, dig beyond 15 feet, and are built for commercial excavation, demolition, and heavy material handling where reach and lift capacity matter more than access width.

Excavators accept a range of attachments matched to the machine’s hydraulic flow and pin size, including buckets, hydraulic thumbs, breakers, grapples, augers, compaction wheels, and rippers. Coastal Machinery and Attachments stocks excavator attachments across all of these categories.

Mini excavators accept a dedicated line of compact attachments sized for their smaller frame and pin dimensions, including buckets, hydraulic thumbs, augers, and compaction wheels built specifically for compact platforms. Browse the full lineup in our mini excavator attachments guide.

Compact and mid-size excavators, typically 6,000 to 20,000 lbs, are the most common choice for utility trenching, since they offer enough hydraulic flow and dig depth for water, sewer, and conduit lines without the footprint of a full-size machine.

Yes. Coastal Machinery and Attachments ships excavators and excavator attachments to the continental United States and Puerto Rico. Contact the team at (941) 223-4578 or contactus@coastalmachines.com for a shipping timeline specific to your location before placing your order.

Ready to add a new attachment to your skid steer lineup?
Check current specials or explore financing to get equipped before your next project.

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