Bradford Breakers by Pennsylvania Crusher Brand

Size Reduction

Bradford Breakers are used at mines around the world to crush, size and clean run-of-mine coal and other friable materials.

  • Features
  • Technical Data

Maintenance costs are surprisingly low with few servicing requirements, other than periodic lubrication and inspection. Because of their rugged design, downtime is rare, eliminating any need for back-up machines.
 
Advantages & Benefits:

  • Simultaneous sizing and cleaning.
  • Sized coal exits quickly through the holes of the screen plate.
  • Unsized coal continues through the length of the crushing chamber.
  • Since this is gravity impact, breakage occurs along natural cleavage fractures, so there is very little production of fines.
  • Internal deflectors induce such material to flow out of the cylinder onto a refuse belt or pile.
  • Maximum cylinder strength and rigidity.
  • T-beams provide maximum rigidity and while being less prone to build up and corrosion.
  • Because of the great strength of our cylinder, it is driven from only one end.
  • Screen plates are lap-mounted and double-bolted, giving them great strength and rigidity.
  • Screen plates are fully interchangeable throughout the cylinder.
  • Several shapes of sizing holes, including a self-cleaning design that minimizes plugging available.

General Information

  • Spiders: ASTM A36 Fabricated Steel Plate
  • Longitudinal Beams: ASTM A36 Structure Steel Beam
  • Screen Plates: AISI 1040 Hot rolled Carbon Manganese Steel
  • Lifting Shelves: ASTM A36 Fabricated Steel Plate
  • Deflectors: ASTM A36 Fabricated Steel Plate
  • Refuse Plow: ASTM A36 Fabricated Steel Plate
  • Cylinder Tires: ASTM A551 Class DHT Heat Treated Steel
  • Wheel: ASTM A504 Class C Heat Treated Steel
  • Wheel Shaft Bearing Standard Lubrication is grease
  • B10 Bearing Life: > 100,000 hours

Bradford Breaker RMD 9 x 12 Specifications

  • Effective Diameter: 8’ - 6" (2591 mm)
  • Effective Screen Plates Length: 12’ - 0” (3658 mm)
  • Cylinder Speed: 13 RPM (Nominal)
  • Maximum HP/RPM: 40 HP/1800 RPM

Bradford Breaker RMD 9 x 16 Specifications

  • Effective Diameter: 8’ - 6" (2591 mm)
  • Effective Screen Plates Length: 16’ - 0” (4877 mm)
  • Cylinder Speed: 13 RPM (Nominal)
  • Maximum HP/RPM: 50 HP/1800 RPM

Bradford Breaker RMD 9 x 20 Specifications

  • Effective Diameter: 8’ - 6" (2591 mm)
  • Effective Screen Plates Length: 20’ - 0” (6096 mm)
  • Cylinder Speed: 13 RPM (Nominal)
  • Maximum HP/RPM: 60 HP/1800 RPM

Bradford Breaker RMD 9 x 24 Specifications

  • Effective Diameter: 8’ - 6" (2591 mm)
  • Effective Screen Plates Length: 24’ - 0” (7315 mm)
  • Cylinder Speed: 13 RPM (Nominal)
  • Maximum HP/RPM: 75 HP/1800 RPM

Bradford Breaker RMD 12 x 16 Specifications

  • Effective Diameter: 10’ - 10" (3302 mm)
  • Effective Screen Plates Length: 16’ - 0” (4877 mm)
  • Cylinder Speed: 11 RPM (Nominal)
  • Maximum HP/RPM: 75 HP/1800 RPM

Bradford Breaker RMD 12 x 20 Specifications

  • Effective Diameter: 10’ - 10" (3302 mm)
  • Effective Screen Plates Length: 20’ - 0” (6096 mm)
  • Cylinder Speed: 11 RPM (Nominal)
  • Maximum HP/RPM: 100 HP/1800 RPM

Bradford Breaker RMD 12 x 24 Specifications

  • Effective Diameter: 10’ - 10" (3302 mm)
  • Effective Screen Plates Length: 24’ - 0” (7315 mm)
  • Cylinder Speed: 11 RPM (Nominal)
  • Maximum HP/RPM: 125 HP/1800 RPM

Bradford Breaker RMD 12 x 28 Specifications

  • Effective Diameter: 10’ - 10" (3302 mm)
  • Effective Screen Plates Length: 28’ - 0” (8534 mm)
  • Cylinder Speed: 11 RPM (Nominal)
  • Maximum HP/RPM: 150 HP/1800 RPM

Bradford Breaker RMD 14 x 20 Specifications

  • Effective Diameter: 13’ – 1 ½" (4001 mm)
  • Effective Screen Plates Length: 20’ - 0” (6096 mm)
  • Cylinder Speed: 10 RPM (Nominal)
  • Maximum HP/RPM: 150 HP/1800 RPM

Bradford Breaker RMD 14 x 24 Specifications

  • Effective Diameter: 13’ – 1 ½" (4001 mm)
  • Effective Screen Plates Length: 24’ - 0” (7315 mm)
  • Cylinder Speed: 10 RPM (Nominal)
  • Maximum HP/RPM: 200 HP/1800 RPM

Bradford Breaker RMD 14 x 28 Specifications

  • Effective Diameter: 13’ – 1 ½" (4001 mm)
  • Effective Screen Plates Length: 28’ - 0” (8534 mm)
  • Cylinder Speed: 10 RPM (Nominal)
  • Maximum HP/RPM: 250 HP/1800 RPM

Bradford Breaker RMD 14 x 32 Specifications

  • Effective Diameter: 13’ – 1 ½" (4001 mm)
  • Effective Screen Plates Length: 32’ - 0” (9754 mm)
  • Cylinder Speed: 10 RPM (Nominal)
  • Maximum HP/RPM: 250 HP/1800 RPM

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