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Product Description
Hawk Excavator Rotating Clamshell Bucket | Model KOMPC400-RCB400 | Width 80" | 4 yd³ Capacity | 40–49 Ton | For Komatsu Excavators
DESCRIPTION
Boost the performance and versatility of your Komatsu PC400 excavator with the Hawk Excavator Rotating Clamshell Bucket KOMPC400-RCB400. Designed for demanding material handling, demolition, dredging, and construction applications, this heavy-duty attachment delivers exceptional control, productivity, and long-lasting reliability. Its powerful 360-degree hydraulic rotation allows operators to accurately position and grab materials from virtually any angle, reducing repositioning time and increasing jobsite efficiency. Built from premium, wear-resistant steel with reinforced structural components, this rotating clamshell bucket is engineered to perform in harsh working environments while minimizing maintenance requirements. Features include a high-capacity 4 yd³ bucket, heavy-duty hydraulic cylinders, replaceable wear components, and quick coupler compatibility for faster attachment changes. Performance, Durability, Compatibility, and precision engineering make this attachment an excellent choice for contractors handling bulk materials, scrap, demolition debris, aggregates, and excavation projects where reliability and productivity matter most.
Key Features
360° Hydraulic Rotation provides smooth, continuous bucket positioning for precise material handling, reducing machine repositioning and improving productivity on every job.
Heavy-Duty Steel Construction delivers exceptional durability in demanding construction, demolition, dredging, and industrial environments for long service life.
Large 4 yd³ Capacity allows operators to move more material per cycle, increasing efficiency while reducing loading and handling time.
Designed for Komatsu PC400 ensures reliable compatibility with 40–49 ton excavators for dependable hydraulic performance and secure installation.
Powerful Hydraulic Cylinders generate strong clamping force for safely handling loose, bulky, and irregular materials with confidence.
Precision Material Placement helps reduce material loss and cleanup by giving operators greater control during loading, sorting, and unloading operations.
Reinforced Structural Design withstands continuous heavy-duty use while resisting stress, impact, and deformation in demanding applications.
Replaceable Wear Components simplify maintenance and reduce long-term ownership costs by extending the attachment's service life.
Optimized Hydraulic Performance operates efficiently with recommended pressure and flow specifications for smooth, responsive operation.
Versatile Jobsite Applications excel in demolition, excavation, bulk material handling, recycling, dredging, and aggregate processing.
Wide Bucket Opening allows efficient handling of oversized loads while improving loading speed and reducing operating cycles.
Professional-Grade Engineering combines strength, balance, and precision manufacturing for reliable daily performance under heavy workloads.
Custom Size Availability allows bucket dimensions to be tailored for specialized applications and unique customer operating requirements.
Detailed Specifications
Specification
Details
Brand
Hawk Excavator
Product
Rotating Clamshell Bucket
Model
KOMPC400-RCB400
Compatible Machine
Komatsu PC400 Excavator
Recommended Machine Weight
40–49 Tons
Bucket Capacity
4 yd³ (3.0 m³)
Bucket Weight
6,471 lbs (2,935 kg)
Bucket Width (B)
80 in
Overall Length (A)
85 in
Maximum Opening (C)
100 in
Overall Height (D)
135 in
Working Pressure
3,630–4,350 psi (25–30 MPa)
Hydraulic Flow
48–53 GPM (180–200 L/min)
Rotation
360° Hydraulic Rotation
Construction Material
Heavy-Duty Reinforced Steel
Hydraulic Cylinders
Heavy-Duty Industrial Grade
Wear Parts
Replaceable Teeth and Cutting Edges
Quick Coupler Compatible
Yes
Primary Applications
Material Handling, Demolition, Construction, Dredging, Recycling, Bulk Material Loading
Customization
Bucket dimensions can be customized to meet specific application requirements.
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!
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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 91 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.
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
Hi, my name is Ken. I’ve had a great experience with Ripping It Outdoors. I purchased a Forax Hp40 Mulcher for my mini excavator. Kayla Patterson is who I dealt with from the beginning until I received it at my house. She has been wonderful to work with and looking forward to working with her with any other orders I purchase. Kayla answered any questions I had and kept me updated throughout the whole process, can’t say it enough just a wonderful person to work with!!
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.