Feeder breaker


  • Seam Height Greater than 137 cm Greater than 75 in
  • Throughput (Standard) Up to 907 MTPH Up to 1,000 TPH
  • Breaker Pick force Up to 58 967 kg Up to 130,000 lbs.

Integral to your operation’s productivity

The Joy UFB-33 feeder breaker is designed to cut operating costs and increase production rates by helping your mining, haulage and conveying systems to work efficiently. This machine provides a reliable means for continuous feeding and breaking of most bedded, mined materials.

  • Designed for mining application
  • Flexible intake sections
  • Designed for durability

Features and benefits

Komatsu crushing joy underground feeder breakers in mining site

Promotes increased productivity

Since the feeder breaker is located closer to the working face, haulage distances and travel times are reduced, resulting in increased production and efficiency of the remaining section equipment.
Komatsu UFB breaker crawler assembly on white background

Easier section moves

Equipped with a powerful crawler drive system for quick, efficient belt moves. Plus, the feeder breaker can be connected to the conveyor belt to move them both simultaneously, saving time.
Komatsu GPL2112 underground feeder breaker image

Optidrive VFD [option]

Joy Optidrive, an AC variable-frequency drive system, integrates software with the electronic and mechanical systems to provide precise conveyor speed control and breaker overload protection.
Komatsu ufb splined breaker drive in white background

Splined breaker shafts

Splined connection versus a compression connection can reduce assembly and disassembly time by more than 50%, reducing downtime for replacement and service. Splined connection is also 25% stronger than previous connections.* *based on internal testing
Komatsu ufb bolt on flights in white background

Bolt-on flights [option]

Downtime to replace conveyor flights is reduced by up to 75% with an easy bolt-on, alloy steel flight design. Operators have the flexibility to add additional flights and improve product sizing.
Komatsu BH20 room and pillar battery haulers training

Camera system

Forward and rearward cameras provide remote monitoring of haulage equipment receiving payload and discharging onto the material handling system.

Specifications for UFB-33

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US system Metric

Seam Height 

Greater than 137 cm

Throughput (Standard) 

Up to 907 MTPH

Breaker Pick Force 

Up to 58 967 kg

Seam Height 

Greater than 54 in 

Throughput (Standard) 

Up to 1,000 TPH 

Breaker Pick Force 

Up to 130,000 lbs. 

Find what works for you