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    Our Products

    Mineral Processing Equipment

    Sample Crushers



    Model Premac Jaw Crusher


    Portable power for the mining and exploration industry.


    The Model Premac Series Jaw Crusher (designed and manufactured for Heath & Sherwood by PR Engineering)


    High-performance portable crusher features double-toggle action for more consistent crushing of the same amount of rock with less effort and reduced wear.


    Features include:

    • Reversible manganese steel jaw and roller bearings for strength and extended wearing life
    • AR Plate Crushing Chamber, Cheek Plate & Swing Jaw
    • Roller Bearings used throughout
    • Safety Toggle
    • Manual Toggle adjustment
    • Tough fabricated steel construction
    • Automatic toggle lubrication available


    Accessories and Options:

    • Support Base Assembly with sample collection tray for Laboratory use
    • Support Base with Rectangular Inlet Hopper & Discharge Chute for Sampling Tower or Pilot Plant


    The Model PREMAC Series Jaw Crusher comes in four sizes depending on the application.


    Model Jaw Crusher PREMAC 1 PREMAC 2 PREMAC 3 PREMAC 4 PREMAC 5
    Estimated Maximum Feed Size (approx. 80% of smallest inlet dimension) 4.8”(122mm) 5.6” (142mm) 6.4” (163mm) 6.4” (163mm) 3.2” (81 mm)
    Estimated Minimum Product Discharge - Throughput 1/4" - 1 ton per hour 1/4" – 1.143 ton per hour 1/4" – 1.25 ton per hour 1/4" – 1.375 ton per hour 1/8" - 1 ton per hour
    Estimated Maximum Product Discharge – Throughput 1 7/8” – 4.5 ton per hour 1 7/8” – 5.144 ton per hour 1 7/8” – 5.625 ton per hour 1 7/8” – 6.1875 ton per hour 7/8” – 2-3 ton per hour
    Weight 2252 # (1000 kg) 2320 # (1052 kg) 2435 # (1104 kg) 2770 # (1256 kg) 1351 # (614 kg)
    Motor hp with 575 3 phase voltage 10 10 10 10 5




    The new 2015 Wescone 300-3 supersedes the 22 year old W300/2 high speed cone crusher.

    The W300-3 new and improved model has been introduced in Australia and now is available from Heath & Sherwood.

    Early in 2013 the team at Wescone decided to take a closer look at a number of potential improvements which could be made to the W300/2. Through the use of Finite Element Analysis of all design components in the old model W300/2 were researched to make available improvements which will help performance. The Wescone project last for 2 years and was based around observing the results over decades of servicing, analyzing wear parts and making less obvious material and/or mechanical changes within the machine. The results according to Wescone was a “great insight into component selection and material designs”.

    The new machine design can be straight swapped for the old machine (same external and base dimensions) with the amazing improvement +25% crushing efficiency and power reduction of similar at -25%. The W300/3 machine’s body is more robust as weight has increased around +5% ( about 10kg ) but at least 80% of the new parts by weight, are not interchangeable with the W300/2.

    The W300-3 gives more crushing efficency with less horse power!

    • Portable more efficient than the original.
    • World's smallest gyratory crusher (265 Kg).
    • All minerals crushing for rapid sampling.
    • Glass recycling and crushing machine.
    • Best reduction ratio available in a single pass. Maximum Reduction Ratio: 25>1
    • Best gyratory crushing action for maximum efficiency.
    • Feed Maximum Size 50mm (33mm F80)
    • Discharge Minimum Closed Side Gap Setting 2mm
    • Recommended 9.2 kW (12.5 hp)
    • Designed, developed and manufactured in Australia, for the harshest mining regions.
    • More than 300 units used in over 20 countries, can be straight swapped with the original W300/2.
    • Heath & Sherwood will continue to service and repair all W300/2 machines in operation.