MB BF70.2 S4 Crusher Bucket — 29-Inch Jaw, 44 Yd³/Hr Output, Built for 15–25 Ton Excavators

For Excavators

The Crusher Bucket That Turns Demolition Waste Into Reusable Aggregate — On Your Schedule

The MB Crushers Crushing Bucket delivers more material per cycle, reducing pass count and speeding up every job. Built for operators who need reliable performance shift after shift.

29-inch jaw opening — Handles feed chunks up to 14 inches without pre-breaking
44 yd³/hr crushing output — Clears a full truckload of demolition debris in under an hour
Compact 5,071 lb frame — Fits confined jobsites — tunnels, urban demolition, pipeline trenches
Recycles reinforced concrete — Rebar and all — crushed material becomes reusable aggregate on-site
Dealer-authorized, US-stocked — Parts available, warranty claims answered by real operators
  • FREE Freight -- Ships from US warehouse, tracking emailed the day it leaves.
  • FREE Fit-Check Call -- Verify GPM, PSI, and coupling spec with a real operator before ordering.
  • Price Match Guarantee -- Send us any authorized US dealer quote — we'll beat it.

$1.00

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MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons
MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons
$1.00

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In the box

  • MB BF70.2 S4 Crusher Bucket (1)
  • Fixed jaw assembly (pre-installed)
  • Hydraulic connection fittings
  • Wear parts kit
  • Operator and maintenance manual
MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons
MB BF70.2 S4 Crusher Bucket — 29-Inch Jaw, 44 Yd³/Hr Output, Built for 15–25 Ton Excavators
$1.00

The Crusher Bucket That Turns Demolition Waste Into Reusable Aggregate — On Your Schedule

Most operators haul demolition debris off-site, pay dump fees, then haul in fresh aggregate. The MB BF70.2 S4 eliminates both trucks. Bolt it to your 15–25 ton excavator and crush concrete, asphalt, brick, and reinforced material directly where it falls. Up to 44 cubic yards per hour processed on your jobsite — no secondary equipment, no wait. Built by MB Crushers, a manufacturer with 25+ years in jaw crusher engineering, the BF70.2 runs on standard auxiliary hydraulics and fits any universal quick-attach. This is the investment that pays for itself on the first large demolition contract.

FREE SHIPPING ON QUALIFYING ORDERSGUARANTEED FIT OR MONEY BACKEXPERT OPERATOR SUPPORTUS-BASED WAREHOUSESFREE SHIPPING ON QUALIFYING ORDERSGUARANTEED FIT OR MONEY BACKEXPERT OPERATOR SUPPORTUS-BASED WAREHOUSESFREE SHIPPING ON QUALIFYING ORDERSGUARANTEED FIT OR MONEY BACKEXPERT OPERATOR SUPPORTUS-BASED WAREHOUSESFREE SHIPPING ON QUALIFYING ORDERSGUARANTEED FIT OR MONEY BACKEXPERT OPERATOR SUPPORTUS-BASED WAREHOUSESFREE SHIPPING ON QUALIFYING ORDERSGUARANTEED FIT OR MONEY BACKEXPERT OPERATOR SUPPORTUS-BASED WAREHOUSESFREE SHIPPING ON QUALIFYING ORDERSGUARANTEED FIT OR MONEY BACKEXPERT OPERATOR SUPPORTUS-BASED WAREHOUSES
44 Yd³/Hr Output
29-Inch Jaw Opening
Lifetime Frame Warranty
Ships From US
44
Cubic yards crushed per hour
29"
Jaw opening width
5,071
Operating weight in lbs
Stop Buying Crusher Buckets With No Hydraulic Specs — Here Is What Actually Matters

Stop Buying Crusher Buckets With No Hydraulic Specs — Here Is What Actually Matters

Every crusher listing on Amazon or Alibaba looks the same — a photo, a price, and zero GPM data. Then it shows up and overloads your auxiliary circuit because nobody confirmed your excavator's actual flow rate. The MB BF70.2 S4 ships only after our fitment verification step: we match your machine's GPM, PSI, and coupling type before the freight order goes in. MB Crushers is a dealer-authorized manufacturer — not a rebranded import. Parts are stocked in the US, warranty claims are answered by real people, and the jaw is engineered for exactly the 40–53 GPM operating range printed on the label.

44 Cubic Yards Per Hour — Crush On the Jobsite, Skip the Haul

44 Cubic Yards Per Hour — Crush On the Jobsite, Skip the Haul

Haul-and-dump runs cost operators $200–$500 per load in fuel, driver time, and gate fees. The BF70.2 S4 crushes up to 44 cubic yards of concrete, brick, asphalt, and reinforced debris per hour directly where demolition happens. Processed material exits the jaw as graded aggregate — road base, backfill, or drainage rock ready to reuse on the same contract. The 29-inch mouth opening handles chunks without pre-breaking, and the 0.90 yd³ load capacity keeps the jaw fed between excavator passes. One operator, one machine, zero secondary equipment.

Pipeline Trenches, Urban Demolition, Tunnel Work — One Attachment Covers Every Confined Site

Pipeline Trenches, Urban Demolition, Tunnel Work — One Attachment Covers Every Confined Site

At 5,071 lbs, the BF70.2 S4 is the compact crusher built for tight jobsites where larger machines cannot operate. Pipeline contractors use it to process trench spoil in place. Demolition crews run it in urban sites where a full jaw crusher cannot fit through the gate. Tunnel and foundry work, road repair, brush clearing, and aggregate recycling all fall inside its operating range. The fixed jaw and side plates are built for continuous cycling, and replaceable wear parts mean you are not scrapping the whole attachment when the jaw face wears. Craftsmanship over convenience.

Will it fit your excavator?

The MB BF70.2 S4 is designed for excavators in the 15–25 ton operating class. Confirm your machine's auxiliary hydraulic flow and coupling spec before ordering — our fit-check call is free and takes under 10 minutes.

  • Auxiliary circuit: 40–53 GPM, minimum 3,191 PSI required
  • Compatible excavator class: Komatsu PC138–PC240, CAT 315–325, Hitachi ZX130–ZX225, Deere 160G–250G, Volvo EC140–EC250
  • Quick-couple: Verify pin spacing and lug width with our team — free fit-check call included with every order

What Operators Are Crushing With the BF70.2 S4

One crusher bucket, eight job types. From pipeline trench work to urban demo to aggregate recycling — if it fits your rig, it handles the material.

Urban Demolition
Road Repair & Paving
Pipeline & Trench Work
Foundry Scrap Processing
Forest & Land Clearing
Aggregate Recycling

Full specifications — MB BF70.2 S4 Crusher Bucket

At a glance

Dimensions
29 inches
Warranty
Lifetime
Full specifications15 data points across 4 categories

Dimensions

ModelBF70.2 S4
Operating weight5,071 lbs
Jaw opening width29 inches
Load capacity0.90 cubic yards

Power & Performance

Required oil flow40–53 gal/min
Required pressure>3,191 PSI
Max crushing output44 cubic yards per hour
Compatible machine range33,100–55,100 lbs (15–25 tons)

Materials

Jaw platesHardened steel, replaceable wear parts
Frame constructionHeavy-duty structural steel weld construction
Side platesHardened, debris-shedding design

Compliance & Warranty

ManufacturerMB Crushers (dealer-authorized)
Frame warrantyLifetime
Wear partsReplaceable — available through US dealer network
Fit guaranteeMoney-back, return freight paid both ways

Our Promise

Every crusher bucket we ship is verified against your machine before the freight order goes in. No guessing at GPM. No mystery couplings. No runaround if it does not bolt on.

Guaranteed FitWe verify your excavator's GPM, PSI, and coupling spec before shipping. Doesn't fit? We pay freight both ways, no restocking fee.
Free Freight From USNo hidden freight charges on qualifying orders. Ships from US warehouses with tracking emailed same day.
Lifetime Frame WarrantyMB Crushers backs the frame for life. Replaceable wear parts stocked through the US dealer network — not a disposable tool.

How To Get A Quote

***Online pricing not available, Please request a quote:***

How To Get A Quote:

Option 1:

Click the Chat to Contact Us or call us at 330-919-7543 to make sure you are getting the best unit possible. These machines are complex so let us help you get exactly what you need!

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Step 3. Please tell us any info you think we would need to know

Step 4. Relax, our team is processing your request and an expert will be in touch to get you exactly what you need!

Product Description

MB Crushers Bucket Crusher | Model BF70.2 S4 | Mouth Opening Width 29″ | Machine Size 15-25 Tons | For Excavators

DESCRIPTION

The MB Crushers BF70.2 S4 Bucket Crusher is a highly efficient and versatile machine designed for excavators weighing between 33,100 and 55,100 lbs. With its combination of high performance and compact size, it is perfect for small- to medium-scale crushing projects and urban job sites. The BF70.2 is engineered for use in areas where space is limited, and it can effectively handle a variety of materials. Its lightweight design and excellent crushing capabilities make it a valuable tool for contractors looking to maximize productivity while minimizing operational space.

Key Features

  • Compact Design: Weighs just 5,071 lbs for easy transportation and ideal for confined spaces.
  • High Efficiency: Produces up to 44 cubic yards per hour, providing quick and productive results.
  • Versatile Usage: Ideal for urban job sites, small-scale demolition, and other general crushing needs.
  • Load Capacity: Can hold up to 0.90 cubic yards of material per load.
  • Hydraulic Compatibility: Requires oil flow between 40–53 gal/min and pressure >3,191 PSI.

Applications

  • Pipeline and Trenches: Ideal for crushing materials during pipeline installations.
  • Urban Job Sites: Perfect for space-limited environments where compact equipment is necessary.
  • Demolitions: Efficient for reducing construction debris during demolition projects.
  • Foundries: Helps process scrap material in foundry operations.
  • Tunnels and Enclosed Spaces: Works effectively in narrow or confined spaces such as tunnels.
  • Road Works: Excellent for crushing materials for road repairs or construction.
  • Forest Maintenance: Ideal for clearing debris and maintaining forested areas.
  • Recycling Aggregate: Useful for recycling aggregate materials from demolition and construction sites. Will recycle reinforced concrete. 

Detailed Specifications

Feature Specification
Model BF70.2 S4
Weight 5,071 lbs
Load Capacity 0.90 cubic yards
Pressure >3,191 PSI
Oil Flow Range 40–53 GPM
Mouth Opening Width 29 inches
Mouth Opening Height 20 inches
Excavator Compatibility 33,100–55,100 lbs (15–25 tons)

Manuals & Documents 

General Warranty Info:

  • Iron Attachments 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 purchase. 
  • 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

We will ship these units to you. Please click the chat to make sure we’re getting you fit for the right unit. 

MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons

Heavy-Duty Construction

The MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons is engineered for operators who demand reliability. Built with heavy-duty materials designed for commercial use and demanding jobsite conditions.Designed to handle tough jobsite conditions day after day.

Quick-Attach Compatible

Universal quick-attach mounting system compatible with most major skid steer brands including Bobcat, CAT, John Deere, Kubota, Case, and New Holland. Mount in under 60 seconds — no special tools required.

MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons
MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons

Built to Pay for Itself

Backed by MB Crushers engineering, the MB Crushers Bucket Crusher | Crusher Bucket For Excavators | 15-25 Tons reduces labor costs and increases productivity on every job. Ships assembled and ready to work from US-based warehouses with free shipping on qualifying orders.

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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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