MB-C50 S4 Bucket Crusher | 21" Mouth | 13 Cubic Yards Per Hour

For Excavators

Crush On-Site Without Hauling Debris Off

Transform your excavator or backhoe loader into a powerful on-site recycling solution with the premium MB Crushers Bucket Crusher. This advanced attachment effortlessly crushes and recycles concrete and stone debris directly on the job site, dramatically reducing material handling costs and eliminating the need for heavy hauling. Experience unmatched efficiency and durability, turning waste into valuable, reusable aggregate with every pass.

Crushes 13 yards/hr — High output in tight urban job sites
Only 1,653 lbs — Built light for mini-excavators from 5 tons
21" mouth opening — Handles compact demolition and landscaping debris
24–34 GPM range — Runs on standard hydraulic flow most rigs carry
  • FREE Freight -- Ships free from US warehouses, no hidden charges
  • FREE Fit-Check Call -- Verify GPM, PSI, and mount fit before you buy
  • Price Match Guarantee -- Send us any authorized dealer quote, we'll beat it

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MB Crushers Bucket Crusher | Model MB-C50 S4 | Mouth Opening Width 21" | Machine Size 5+ Tons | For Excavator & Backhoe Loaders
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In the box

  • MB-C50 S4 Bucket Crusher unit
  • Mounting hardware
  • Hydraulic hose connections
Kobelco_Reunion_MB-C50
MB-C50 S4 Bucket Crusher | 21" Mouth | 13 Cubic Yards Per Hour
$1.00

Crush On-Site Without Hauling Debris Off

The MB-C50 S4 is a vetted bucket crusher built for mini-excavators and backhoe loaders starting at 11,000 lbs. At just 1,653 lbs, it crushes up to 13 cubic yards per hour in tight urban job sites and landscaping work where full-size units can't reach. This is a smart investment for operators who want to eliminate off-site hauling and turn demolition waste into reusable material right on the jobsite. Craftsmanship like this means fewer trips to the dump and more billable hours in the seat.

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Only 1,653 lbs
13 Cu Yds Per Hour
Tight-Space Ready
0.20 Cu Yd Load
1,653 lbs
Total Weight
13 cu yds/hr
Crushing Output
21 inches
Mouth Opening Width
Kobelco_Reunion_MB-C50

Stop Guessing If This Crusher Matches Your Rig's Hydraulics

Amazon listings for bucket crushers never list GPM or PSI requirements. You buy, it shows up, and either it won't cycle or it smokes your pump. Forge & Grit uses a Fitment Checker that matches your exact excavator make, model, and hydraulic flow to this MB-C50 S4 before you ever commit. We verify your 24–34 GPM range and 2,900+ PSI against the unit's specs. No mystery. No $8,000 pump repair. This is a vetted, dealer-authorized MB Crushers unit — not a rebranded import with a disconnected warranty line.

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Thirteen Cubic Yards Per Hour From a 1,653-Lb Unit

Most operators assume a bucket crusher this light can't produce real volume. The MB-C50 S4 proves otherwise — up to 13 cubic yards per hour through a 21-inch mouth opening. That's enough output for landscaping jobs, small-scale demolition, and urban work where full-size crushers can't fit. The 0.20 cubic yard load capacity keeps you moving without overloading your mini-excavator. This is the kind of craftsmanship that lets a one-man crew handle what used to take three guys with sledgehammers and a dumpster rental.

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Dealer-Authorized Build With Real Warranty Backup

This isn't an Alibaba special with ten different brand names. The MB-C50 S4 ships from US warehouses as a dealer-authorized MB Crushers unit. The universal quick-attach mounts to most major excavator brands in under 60 seconds — no special tools. If it doesn't fit your rig, Forge & Grit pays return freight both ways. Your investment is protected by a real phone number, real operators answering, and a manufacturer warranty that doesn't vanish when you actually need to file a claim. This is a curated selection — the kind of gear we'd bolt to our own machine.

Compatibility Check

Confirm your machine meets these specs before ordering. Not sure? Call us — we'll walk through it.

  • Excavator operating weight of 11,000 lbs or above
  • Hydraulic oil flow between 24 and 34 GPM
  • Operating pressure greater than 2,900 PSI

Where It Works

Built for compact operators who need to crush in confined areas where full-size equipment can't go.

Urban Demolition
Landscaping Projects
Residential Clearing
On-Site Material Recycling

Full specifications

At a glance

Dimensions
21 inches
Warranty
See product page
Full specifications11 data points across 4 categories

Dimensions

Mouth Opening Width21 inches
Mouth Opening Height10 inches
Weight1,653 lbs

Power & Performance

Oil Flow Range24–34 GPM
Pressure>2,900 PSI
Back Pressure<145 PSI
Crushing OutputUp to 13 cubic yards per hour
Load Capacity0.20 cubic yards
Excavator Compatibility11,000 lbs and above (5+ tons)

Materials

ConstructionSee product page

Compliance & Warranty

WarrantySee product page

The Forge & Grit Promise

We stand behind every attachment that leaves our warehouse. No runarounds, no fine print.

Guaranteed Fit or Money BackIf it doesn't fit your rig, send it back on us. We pay freight both ways. No restocking fee.
Ships Free from US WarehousesNo hidden freight charges. Tracking emailed the day it ships from our domestic stock.
Real Operator SupportCall and talk to someone who knows what a GPM rating is. No bots, no hold music for 40 minutes.

Compact Powerhouse: MB Crushers Bucket Crusher MB-C50 S4

Transform your mini-excavator or backhoe loader into an on-site recycling powerhouse with the MB Crushers Bucket Crusher | Model MB-C50 S4. As the smallest and most agile model in the legendary MB Crushers line, this 21-inch mouth opening crusher is engineered specifically for machines starting at 5+ tons (11,000 lbs). Weighing just 1,653 lbs, the MB-C50 S4 delivers an impressive production rate of up to 13 cubic yards per hour, making it the ultimate solution for landscaping, urban construction, pipeline work, and demolition in restricted spaces. Turn debris into valuable, reusable aggregate directly on your jobsite—saving time, reducing hauling costs, and maximizing efficiency without the bulk of larger crushers.

Key Features

  • Compact & Lightweight Design: At only 1,653 lbs, this crusher is perfectly balanced for mini-excavators and compact equipment, ensuring easy transport and maneuverability in the tightest spaces.
  • High Productivity in a Small Package: Despite its size, the MB-C50 S4 processes up to 13 cubic yards per hour, keeping your small-scale projects moving efficiently.
  • Optimized for Restricted Spaces: Ideal for urban job sites, tunnels, trenches, and forest maintenance where larger equipment simply cannot operate.
  • Precision Load Capacity: With a load capacity of 0.20 cubic yards, it is tailored for compact tasks, reducing waste and improving cycle times.
  • Hydraulic Compatibility: Requires an oil flow of 24–34 gal/min and a pressure greater than 2,900 PSI, ensuring seamless integration with your existing hydraulic system.

Specifications

Feature Specification
Model MB-C50 S4
Weight 1,653 lbs
Load Capacity 0.20 cubic yards
Pressure >2,900 PSI
Oil Flow Range 24–34 GPM
Back Pressure <145 PSI
Mouth Opening Width 21 inches
Mouth Opening Height 10 inches
Excavator Compatibility 11,000 lbs and above (5+ tons)

Why Choose MB Crushers Bucket Crusher | Model MB-C50 S4 | Mouth Opening Width 21″ | Machine Size 5+ Tons | For Excavator & Backhoe Loaders

When precision, portability, and power are non-negotiable, the MB-C50 S4 stands alone. This isn’t just a smaller crusher—it is a purpose-built tool for the professional who demands performance in confined environments. Whether you are working in a narrow urban alley, a pipeline trench, or a sensitive landscaping project, the MB-C50 S4 brings the legendary reliability of MB Crushers to compact machinery. It is engineered to turn concrete, debris, and aggregate into reusable material on the spot, drastically reducing your reliance on off-site processing and dumpster rentals. Backed by MB Crushers’ decades of innovation and supported by our expert team, this crusher is an investment in self-sufficiency and jobsite efficiency. Choose the MB-C50 S4 and experience how big performance comes in a small package.

Note: Online pricing is not available for this item. Please request a quote via chat or by calling 330-919-7543 to ensure you get the exact configuration for your machine.

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About MB Crushers Skid Steer Buckets

MB Crushers manufactures professional-grade crushing bucket, padding bucket, sorting grapple, pulverizer, and screening bucket for skid steers, excavators, and compact equipment. Shop 53 MB Crushers attachments at Iron Attachments with competitive pricing and fast US shipping.
View all MB Crushers products →

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