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Product Description
Hawk Excavator Rotating Clamshell Bucket | Model RCB350 | Width 80" | 3.5 yd³ Capacity | 35–39 Ton | For Excavators
DESCRIPTION
Designed for demanding material handling and excavation applications, the Hawk Excavator RCB350 Rotating Clamshell Bucket delivers exceptional power, precision, and reliability for 35–39 ton excavators. Featuring a 360-degree sealed hydraulic rotation, this heavy-duty attachment allows operators to position materials accurately while improving efficiency in dredging, loading, excavation, demolition, quarrying, and mining operations. Its robust high-strength steel construction is engineered to withstand abrasive environments while reducing downtime and maintenance requirements. Features such as dual hydraulic cylinders provide powerful gripping force and smooth operation, while replaceable cutting edges help extend service life. Benefits include faster cycle times, improved material control, increased productivity, and dependable performance across demanding job sites. Compatibility with a wide range of hydraulic excavators makes installation straightforward, while customizable configurations help meet specific operational requirements. Whether handling sand, aggregates, loose soil, or bulk materials, the RCB350 offers the durability, efficiency, and precision professionals expect from Hawk Excavator equipment.
Key Features
360° Sealed Hydraulic Rotation provides smooth, continuous bucket positioning for precise material handling, dredging, and loading in confined or challenging work environments.
Built for 35–39 Ton Excavators delivers outstanding compatibility with larger hydraulic excavators, ensuring stable operation and reliable lifting performance.
Heavy-Duty Steel Construction is engineered to withstand harsh jobsite conditions, abrasive materials, and demanding daily operation for extended service life.
Powerful Dual Hydraulic Cylinders generate strong gripping force while delivering smooth, controlled opening and closing for improved handling efficiency.
Large 3.5 yd³ Capacity allows operators to move more material with every cycle, increasing productivity while reducing overall operating time.
Replaceable Cutting Edges simplify maintenance, reduce downtime, and help maintain excellent digging and material penetration performance.
Exceptional Material Control enables accurate loading, unloading, and placement of loose materials with reduced spillage and improved operational precision.
Ideal for Multiple Industries performs exceptionally well in construction, mining, quarrying, demolition, dredging, and bulk material handling applications.
Optimized Hydraulic Performance operates efficiently with recommended hydraulic pressure and flow to maximize attachment responsiveness and productivity.
Easy Equipment Integration is designed for seamless installation on compatible hydraulic excavators, minimizing setup time before operation.
Reliable Performance in Harsh Conditions maintains dependable operation in demanding environments where durability and consistency are essential.
Customizable Configuration Options allow contractors to select attachment specifications that best fit unique project requirements and machine compatibility.
Improves Jobsite Productivity combines high bucket capacity, powerful hydraulics, and precise rotation to complete tasks more efficiently.
Precision Engineered Design enhances operational control while helping reduce operator fatigue during repetitive loading and excavation tasks.
Designed for Long-Term Reliability incorporates premium materials and reinforced structural components to maximize durability and minimize maintenance.
Detailed Specifications
Specification
Details
Brand
Hawk Excavator
Product
Rotating Clamshell Bucket
Model
RCB350
Machine Compatibility
Hydraulic Excavators
Recommended Machine Weight
35–39 Tons
Bucket Capacity
3.5 yd³ (2.5 m³)
Bucket Weight
5,622 lbs (2,550 kg)
Bucket Width
80 in
Overall Length (A)
75 in
Maximum Opening (C)
90 in
Overall Height (D)
130 in
Hydraulic Working Pressure
3,630–4,060 psi (25–28 MPa)
Hydraulic Working Flow
48–53 GPM (180–200 L/min)
Rotation
360° Sealed Hydraulic Rotation
Hydraulic Cylinders
Dual Hydraulic Cylinders
Construction Material
High-Strength Reinforced Steel
Cutting Edge
Replaceable
Primary Applications
Dredging, Excavation, Material Handling, Loading, Demolition, Quarrying, Mining
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!
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Customer Reviews
Overall rating: 4.7 / 5 from 104 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.
The week before leaving for my mule deer hunt in Wyoming, I seeded the area surrounding the new runway at Wertheimer Airport in Norman.
This past Tuesday, I returned to finish the job and was pleased to see that the seed I planted just two weeks earlier was already germinating and coming up nicely.
These pictures show the freshly seeded areas alongside those planted two weeks ago. It’s a great comparison and a good example of what proper seedbed preparation and planting can accomplish.
I used my Ferminator G-3, which is one impressive piece of equipment. It prepares the seedbed, plants the seed, smooths the soil, and firms everything up for good seed-to-soil contact—all in one efficient operation.
I’ve owned and operated several no-till drills over the years, but I can say without hesitation that the Ferminator is the most efficient and versatile seeding machine I’ve ever owned.
There’s something pretty satisfying about returning to a job and seeing those first green shoots coming through the ground. That’s when you know your hard work is paying off!
Just got my Buffalo Turbine! Love it. Took a little bit to get used to getting the right angle for the nozzle, but not a problem. Side note, works much better if the frame is level as much as possible.
Love it!
Gary Haddock
Seems to be in order delivery wasn't able to use lift gate but tractor was able to take pallet off the truck bed. No damage to machine after visual check. won't know how it runs until rain stops.
Staff at RippingitOutdoors was very quick to call and double check the type of backet needed for the unit to ensure the online order matched( to fit my skid steer quick attachment on my l2501 Kubota). Explained the teeth & belt could be ordered through them directly over the phone when/if needed as well as selling other types of custom made brackets for Utv's ect. All around Great customer service and would purchase from again.
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.
seeds come out way to fast at lowest setting when planting alfalfa literally the only reason I bought it now I can't even use it and I can't return it so I'm stuck with it for the price you pay you would think it would work!
It’s built solid. It handles Field grass hip high pretty well. With the maintaining the field grass after the first cut, the pasture field is starting to look like a lawn. The 84 inch with the best thing to get for 8 acres. It’s best to order belts for back up in the event if the belts were to break. But overall, I like the product quality is good.
When I think of ripping it outdoors something else comes to mind, but I digress. This spreader is awesome. Works like a champ. The hopper is big enough to do my 1 acre lot for my applications. Just load once and go. I would highly recommend this spreader. It saves a ton of time and is a quality product.
Put this on Kubota 900 with winch hookup. This thing is a beast (within reason). I named it ‘Homie”, cause Homie don’t play. It will take care of stuff up to about 2” in diameter. You still have to remember that this is NOT like the ones on a bobcat or larger machinery. It does have its limits. But all in all I am very satisfied with it. Now on to the good part! The staff at Ripping It are outstanding! Especially Kayla in the office. She has gone above and beyond on making sure everything went right, from ordering to questions about installation. This young lady would be of great value at ANY company ! Her knowledge and personality are like over the top. This is my first experience with Ripping It Outdoors and I can only say positive things about them. With all that being said, I do fill out reviews on things I buy, AND I give a honest review. If it’s bad then you will know it. But if it’s good, well I tell the truth ! Again Kayla, from the bottom of my heart, a great big THANK YOU for all your help and just talking to you. I feel like we’ve know each other for years!
TENT is easy to put up , material is tuff as told....only complaint is that i wish the bottom had about 3 to 4 inches overlap towards the inside so i could install a 2 x4 or something to help hold the tent down in high winds we have here in virginia thanks