Patterson 5ft Dia. x 6ft Long Ball Mill

• Make: Patterson
• Model: Type "D" Non-Jacketed
• Type: Steel Ball Mill
• Condition: Used Condition - Roughly 300 Hours Use
• Size: 5ft Diameter x 6ft Long
    
• General Model Specifications:
  • Internal Mill Dimensions with Liner Plates Installed: 58.875in Diameter x 71.25in Inside Length
  • Ball Mill Volume: Approx. 839 US Gal (112ft³)
  • Mill Speed: Approx. 17 RPM
  • Mill Cylinder:
    • Fabricated Weldment Consisting of Fabricated Steel Ribbed Heads and Carbon Steel Shell
    • Opening for Charging of the Mill is Cut in the Shell and Door Frame is Welded Around Opening
    • Opening: 14in x 20in
      • Allow for Installation of Liner Plates
    • Fabricated Steel Mill Heads Have Bearing Trunnions
      • Some 10in Diameter
    • Drive Head has an External Flange
      • Main Bull Gear is Mounted
  • Mill Interior Finish:
    • Mill Shell Lined with (24) 0.25in Thick Liner Plates
    • Head Each Lined with (8) 3/8 in. Thick Pie Shaped Liner Plates
    • Liner Plates Retained in Place by (8) Bolted-In Lifters/Retainer Bars
    • Inlet and Mill Trunnion with Lifter Inside Diameter to Suit 6 in. Diameter Feed Auger and Ball Retaining Screen
  • Cylinder Access Door
    • Fabricated Steel Grinding Door Complete with 3/8in 60-Durometer Neoprene Rubber Gasket
  • Feed Hopper: 22in Wide x 31in Long x 33in High
  • Pinion Gear:
    • SAE 1045 or Equal Forged Steel Machine Cut Fine Tooth Helical Pinion
    • 19 Teeth
    • 2 D.P
    • 20° Pressure Angle
    • 5in Face Width
    • Body Speed Approx. 17 RPM
  • Spur Gear:
    • Ratio: 7.158 Approx. (Gear and Pinion Ratio)
    • Class 40 Cast Iron or Equal Machine Cut Fine Tooth Helical Spur Gear
    • 136 Teeth
    • 2 D.P
    • 20° Pressure Angle
    • 5in. Face Width
  • Trunnion Bearings
    • Cast Iron Split Cap and Bottom Housing with:
      • Poured ASTM Alloy Grade 7 Babbitt
      • Machined
      • Grease-Grooved Surface
    • Top Caps have a Cavity for Filling with Bearing Block-Type Brick Grease-Grooved Surface
    • Bottom Halves have Externally Cast Spherically Contoured Body Seats into their Counterpart
    • Bearing Sockets and Bearing Socket Brackets are Bolted to the Support Stand
    • Bearings: 10in Diameter with Heavy Duty SKF or Equal Adaptor Sleeve Mounted Spherical Roller Self Aligning Pillow Block Bearing with Cast/Ductile Iron Bodies and Standard Double Lip Seal
  • Mill Guarding:
    • Comes Supplied with Full Type Split Gear Guard
  • Drive: Electric Motor
    • Power Output: 30HP
    • Voltage: 230/460 Volt
    • Rotating Speed: 1725 RPM
    • Frequency: 60Hz
    • Phase: 3-Phase
    • Reducer:
      • SEW Eurodrive or Equal Horizontal Foot Mounted Parallel Shafted Helical Geared Unit with a Ratio of Approx. 13.56:1
        • Output Speed: 125 RPM
        • Full Load Motor Speed: 1750 RPM
      • Mechanical Rating of 60HP Minimum
      • Integrally Coupled to a Horizontal Parallel Shaft Helical Geared Reducer with Minimum AGMA Class II Gearing and Service Factor of 2.0 Minimum
      • Output Shaft of the Gearbox is Installed the Pinion Gear Meshed with the Main Gear on the Mill Body
  • Support Stands:
    • Fabricated Weldments using Standard Structural Steel and Plate Sections
    • Stands are Designed for 66in Clearance Between Mill Cylinder and Floor
    • Stands are Upper Pad Surface for Bolting Together with Bearing Socket Bracket

• Overall Dimensions:
  • Length: 14ft
  • Width: 8ft 6in
  • Height: 11ft 3in
    
    
• Location: Savona, British Columbia, Canada

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