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Product Description
Hawk Excavator Long Reach Arm | Model JD470G-LRA4672 | Reach 72'2" | 46–50 Ton | For John Deere Excavators
DESCRIPTION
The Hawk Excavator John Deere 470G Long Reach Arm JD470G-LRA4672 is engineered to maximize excavation performance, delivering exceptional reach, strength, and precision for demanding applications. Designed for 46–50 ton excavators, this premium long reach boom and arm attachment extends the machine's working range to 72'2", making it ideal for river dredging, canal maintenance, deep excavation, pond cleaning, slope finishing, foundation work, and high-reach construction projects. Featuring a 40'4" boom, 30'5" arm, and 1.18 yd³ bucket capacity, this system provides excellent digging efficiency while minimizing machine repositioning to improve jobsite productivity. Manufactured with high-strength steel, precision welding, stress simulation analysis, and NDT-tested components, every assembly is built for long-lasting durability under demanding operating conditions. Optional pre-plumbed hydraulic lines, hose brackets, and slurry discharge hose supports simplify installation and expand attachment compatibility. Combining extended reach, outstanding control, and rugged construction, the Hawk Excavator Long Reach Arm delivers reliable performance for contractors seeking greater productivity, accuracy, and versatility.
Key Features
Extended 72'2" Reach enables excavation across rivers, ponds, canals, and difficult-to-access work areas while reducing machine repositioning, increasing productivity, and improving overall operational efficiency on large excavation and dredging projects.
Designed for 46–50 Ton Excavators to provide a precise fit, excellent hydraulic performance, and dependable operation for demanding construction, infrastructure, marine, and earthmoving applications.
Heavy-Duty Steel Construction utilizes reinforced high-strength materials engineered to withstand continuous heavy excavation, dredging, demolition, and material handling under severe working conditions.
40'4" Long Boom Design delivers superior working radius, allowing operators to perform deep excavation, slope grading, shoreline maintenance, and foundation work with greater efficiency and reduced equipment movement.
30'5" Precision Arm provides exceptional digging control, smoother bucket movement, and improved positioning accuracy for trenching, material handling, grading, and precision excavation tasks.
1.18 Cubic Yard Bucket Capacity offers excellent material handling capability, increasing productivity by moving larger volumes of soil, sediment, sand, gravel, and debris with every cycle.
Deep Digging Performance reaches excavation depths up to 52'9", making it ideal for dredging operations, underground utility installation, deep foundations, and drainage construction projects.
Advanced Structural Engineering incorporates computer-aided stress simulation and structural analysis to optimize strength, reduce fatigue, and ensure dependable long-term durability.
NDT Quality Tested Components undergo comprehensive non-destructive testing to verify weld integrity, structural reliability, and consistent manufacturing quality before delivery.
Pre-Plumbed Hydraulic Option simplifies installation with factory-installed hydraulic lines and hose routing, reducing setup time while supporting hydraulic dredge pumps and compatible attachments.
Flexible Attachment Compatibility supports multiple excavation accessories, allowing contractors to perform dredging, excavation, grading, demolition, and specialized applications with one machine.
Improved Jobsite Productivity minimizes machine repositioning by expanding the excavator's operating range, reducing cycle times, lowering fuel consumption, and improving overall project efficiency.
Smooth Hydraulic Operation features durable hydraulic hose assemblies designed for consistent oil flow, reliable performance, and extended service life in demanding environments.
Ideal for Specialized Applications including river dredging, lake restoration, canal cleaning, mining support, shoreline stabilization, deep trenching, environmental remediation, and marine construction projects.
Detailed Specifications
Specification
Details
Brand
Hawk Excavator
Product
Long Reach Arm
Model
JD470G-LRA4672
Compatible Machine
John Deere 470G Excavator
Excavator Class
46–50 Tons
Overall Reach Length
72'2" (22 m)
Boom Length
40'4" (12.30 m)
Arm (Stick) Length
30'5" (9.27 m)
Maximum Reach
72'3" (22.03 m)
Maximum Digging Depth
52'9" (16.08 m)
Maximum Working Height
66'10" (20.36 m)
Boom Height
11'8" (3.55 m)
Bucket Capacity
1.18 yd³ (0.9 m³)
Primary Material
High-Strength Reinforced Steel
Structural Analysis
CAD Stress & Strength Simulation Tested
Weld Inspection
Non-Destructive Testing (NDT) Verified
Hydraulic Lines
Optional Pre-Plumbed Hydraulic System
Slurry Hose Brackets
Optional Heavy-Duty Mounting Brackets
Attachment Compatibility
Hydraulic Dredge Pumps & Mechanical Attachments
Typical Applications
River Dredging, Canal Cleaning, Pond Excavation, Deep Trenching, Marine Construction, Foundation Excavation, Shoreline Maintenance, Slope Finishing
Manuals & Documents
General Warranty Info:
Ripping It Outdoors works closely with our manufacturers to supply and support your products warranty needs as best as possible!
The majority of products come with a manufacturer represented warranty against manufacturing defects for at least a 12 month period after the date of sale.
Expendable components and "wear parts" including but not limited to blades, knives, teeth, oil, chain sprockets, skid shoes, knife mounting discs, and similar components are usually excluded from manufacturer warranties.
Please reach out to us for any specific warranty information needed about products and parts you can’t find!
Videos
Shipping
$1 Shipping Quote Info:
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Complimentary lift gate service on all freight shipments where it’s possible. We guarantee safe delivery!
Customer Reviews
Overall rating: 4.6 / 5 from 86 reviews.
I've started using the mulcher I on several parcels of land 10 acres . I have grind down a couple of 14 inch stumps. Caution the mount bracket behind the mulcher motor exhaust gets extremely hot even with gloves on . But the unit so far seems to works very good it's well put together.
The Firminator G3 is s heavy duty quality machine. The discs worked extremely well and planting and culti-packing is very smooth and easy. Working with Dillon at Ripping It Outdoors was a very good experience and seamless transaction.
After spending way to much money for forest mulching services I discovered this wonderful machine. It's not a giant powerhouse forest mulcher, but it does everything a property owner needs to maintain a forested property. I wish I would have found it sooner.
The Firminator is well built and functions well. I am having some trouble while planting mixed size seeds. Next time out I’ll try setting it so only the smaller seeds drop out the open it up for the larger seeds.
easy buying process and great communication. Mulcher works great, easily clears overgrown brush and even mulched a 5" thick mulberry tree fairly easily. running it off of my old 331 bobcat with no problem powering the drum at all. Only small issue which isn't a big deal is that the supplied hoses are about 16" too short to operate a full range of motion.
Over all built well. I like it is all cast iron and metal and not plastic. Had to modify fertilizer disc mount to fit correctly, nothing major, a little grinding. I modified the center link hitch point to accommodate my John Deere quick hitch. Have yet to plant with it but I’m sure it will work perfect. Love the grease fittings everywhere. Reminds me of the old farm equipment I grew up on, and still use periodically.
My firminator RT was delivered in good condition in ND. I will be using it next week. I have a 45 HP John Deere tractor that is supposed to lift 2000 lb but really struggles to lift this 6 foot firminator RT. I will just have to use in as a two pass operation for now.
I do wish there was a better operating manual for this unit. Maybe that is something you can work on.
I will give you an update once I start using it in a few days.
Great piece of equipment. Performs far better than I expected. One piece of advice - if property is significantly overgrown, consider the tractor attachment first to bring down the over growth and then switch to the UTV attachment to maintain property. No complaints worked perfectly.
These are great feeders if you don’t have any feral hogs but if the hogs tear off the wiring harness from the timer to the feeder motor, you’re disabled. Then, if you ask for help from Outback, they refer you to the dealer but really you’re on your own for parts and repairs.
I have three Outback feeders that work as designed. They’re 13 years old and have always served well but this feeder misses the mark by a very high margin. I’d NEVER buy this product again.
Feeders need to be dependable and this unit is not.
This is my first experience with Ripping It Outdoors. Fortunately I got Dillion as a representative and everything from sales to shipping was spot on..
Thanks Dillion for your help!!
The only thing is when hooking up the actuator on my ATV. The wire is long going to the plug in. What has happened in the past about this. Is their video showing the usage of the control?
I had a guy from a shop come cut the shafts and hook me up. It went well. I've been using the mulcher and the tractor saw on my two tractors and having fun.
i love it, i'm a little inexperianced with it but i'll learn, i've never messed with chemicals much.
instead of putting it on an atv, i put it on a skid steer
We bought a 6' G3 last year and it worked well. We were missing the handle for seed adjuster on 1st one and they next day aired it. Just ordered an 8 ' model to go with it. Dillon is great to work with. Hope this one works out as well.