RUS ENG
Mon-Thu: 9:00 a.m. - 6:00 p.m. Fri: 9:00 a.m. - 5:00 p.m.
+7 (812) 331-02-42  sales@mtspb.com
St. Petersburg, 22nd line, 3, bld. 5
Mekhanobr-Tekhnika
8 800 550 35 56
Calling from Russia is free
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      • Disc pulverizers
    • Classification equipment
      • Unbalanced throw screens
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      • Spiral classifier
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      • Flotation machines
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      • Electrostatic separator
      • Electromagnetic analyzer
      • Jig
      • Concentrating table
      • Agitation vat
    • Splitting-dividing
      • Chute sample splitters
      • 928RM-B ring riffle
      • Rotary sample splitters
      • Dividing unit DU-10
      • Rotary sample splitter AVD
      • ADD Crusher/Splitter
    • Dehydration and clarification equipment
      • Thickener
      • Laboratory filter
    • Auxiliary equipment
      • Electromagnetic feeders
      • Loose material small sample mixer
      • Natural slope measuring device for loose material
      • Reagent feeder
      • Laboratory tables and stands
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  • Industrial equipment
    • Crushers
      • Vibrating cone crushers
      • Vibrating jaw crusher
      • Jaw crushers
      • Hammer crushers
      • Roll crushers
      • Rotor shredders
    • Screens and vibratory sieves
      • Unbalanced throw screens
      • Double-impact screens
      • Circular vibrating screens
      • Vibratory sieves
      • Hydraulic screens
    • Separators and demagnetizers
      • Wet magnetic drum separator (PBM)
      • Wet electromagnetic drum separators (EBM)
      • Wet electromagnetic roll separators (EVM)
      • Dry electromagnetic roll separators (EVS)
      • Electromagnetic roll separators with top feed (EVS-V)
      • Electrostatic separators
      • Wet high gradient rotor separator (ERM)
      • PBST dry drum separators
      • Demagnetizers
      • Tube analyzer (Davis tube)
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      • Spring (light) feeders
      • Shock absorber (heavy) feeders
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      • Sampler 63OP
      • Sampler 66OP
      • Sampler 66OP-01
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    About company
    • Company
    • News
    • History
    • Our achievements
    • Our possibilities
    • Top managers
    • Scientific and educational center
    • Media
      • Articles
      • Mass Media about us and Video materials
    • Docs
      • Questionnaire
    • Reviews
    • Partners and Customers
    • Requisites
    Equipment
    • Laboratory equipment
      • Crushing and grinding
        • Jaw crushers
        • Vibrating cone crushers
        • Roll crushers
        • Hammer crushers
        • Ball mills
        • Vibrating pulverizers
        • Disc pulverizers
      • Classification equipment
        • Unbalanced throw screens
        • Double-impact screen
        • Circular vibrating screens
        • Vibrating testing sieves
        • Shock testing sieve AS-200U (RO-TAP)
        • Vibratory sieve
        • Spiral classifier
        • Hydrocyclone
      • Concentration
        • Flotation machines
        • Magnetic separators
        • Electrostatic separator
        • Electromagnetic analyzer
        • Jig
        • Concentrating table
        • Agitation vat
      • Splitting-dividing
        • Chute sample splitters
        • 928RM-B ring riffle
        • Rotary sample splitters
        • Dividing unit DU-10
        • Rotary sample splitter AVD
        • ADD Crusher/Splitter
      • Dehydration and clarification equipment
        • Thickener
        • Laboratory filter
      • Auxiliary equipment
        • Electromagnetic feeders
        • Loose material small sample mixer
        • Natural slope measuring device for loose material
        • Reagent feeder
        • Laboratory tables and stands
      • Spare parts
        • Spare parts
    • Industrial equipment
      • Crushers
        • Vibrating cone crushers
        • Vibrating jaw crusher
        • Jaw crushers
        • Hammer crushers
        • Roll crushers
        • Rotor shredders
      • Screens and vibratory sieves
        • Unbalanced throw screens
        • Double-impact screens
        • Circular vibrating screens
        • Vibratory sieves
        • Hydraulic screens
      • Separators and demagnetizers
        • Wet magnetic drum separator (PBM)
        • Wet electromagnetic drum separators (EBM)
        • Wet electromagnetic roll separators (EVM)
        • Dry electromagnetic roll separators (EVS)
        • Electromagnetic roll separators with top feed (EVS-V)
        • Electrostatic separators
        • Wet high gradient rotor separator (ERM)
        • PBST dry drum separators
        • Demagnetizers
        • Tube analyzer (Davis tube)
      • Feeders
        • Spring (light) feeders
        • Shock absorber (heavy) feeders
        • Control units (cabinets)
      • Samplers
        • Sampler 63OP
        • Sampler 66OP
        • Sampler 66OP-01
      • Spare parts
        • Spare parts for equipment
    • Powder materials
    • Waste processing solutions
      • Glass waste
      • WEEE – waste of electrical and electronic equipment
      • Waste paper
    • E-catalogues
    • Equipment applicability
    Services
    • Research using customers materials
    • Delivery
    • Warranty and spare parts
    News
    RSF scientific project
    • School of Young Scientists
    Contacts
      Mekhanobr-Tekhnika
      RUS ENG
      • About company
        • Назад
        • About company
        • Company
        • News
        • History
        • Our achievements
        • Our possibilities
        • Top managers
        • Scientific and educational center
        • Media
          • Назад
          • Media
          • Articles
          • Mass Media about us and Video materials
        • Docs
          • Назад
          • Docs
          • Questionnaire
        • Reviews
        • Partners and Customers
        • Requisites
      • Equipment
        • Назад
        • Equipment
        • Laboratory equipment
          • Назад
          • Laboratory equipment
          • Crushing and grinding
            • Назад
            • Crushing and grinding
            • Jaw crushers
            • Vibrating cone crushers
            • Roll crushers
            • Hammer crushers
            • Ball mills
            • Vibrating pulverizers
            • Disc pulverizers
          • Classification equipment
            • Назад
            • Classification equipment
            • Unbalanced throw screens
            • Double-impact screen
            • Circular vibrating screens
            • Vibrating testing sieves
            • Shock testing sieve AS-200U (RO-TAP)
            • Vibratory sieve
            • Spiral classifier
            • Hydrocyclone
          • Concentration
            • Назад
            • Concentration
            • Flotation machines
            • Magnetic separators
            • Electrostatic separator
            • Electromagnetic analyzer
            • Jig
            • Concentrating table
            • Agitation vat
          • Splitting-dividing
            • Назад
            • Splitting-dividing
            • Chute sample splitters
            • 928RM-B ring riffle
            • Rotary sample splitters
            • Dividing unit DU-10
            • Rotary sample splitter AVD
            • ADD Crusher/Splitter
          • Dehydration and clarification equipment
            • Назад
            • Dehydration and clarification equipment
            • Thickener
            • Laboratory filter
          • Auxiliary equipment
            • Назад
            • Auxiliary equipment
            • Electromagnetic feeders
            • Loose material small sample mixer
            • Natural slope measuring device for loose material
            • Reagent feeder
            • Laboratory tables and stands
          • Spare parts
            • Назад
            • Spare parts
            • Spare parts
        • Industrial equipment
          • Назад
          • Industrial equipment
          • Crushers
            • Назад
            • Crushers
            • Vibrating cone crushers
            • Vibrating jaw crusher
            • Jaw crushers
            • Hammer crushers
            • Roll crushers
            • Rotor shredders
          • Screens and vibratory sieves
            • Назад
            • Screens and vibratory sieves
            • Unbalanced throw screens
            • Double-impact screens
            • Circular vibrating screens
            • Vibratory sieves
            • Hydraulic screens
          • Separators and demagnetizers
            • Назад
            • Separators and demagnetizers
            • Wet magnetic drum separator (PBM)
            • Wet electromagnetic drum separators (EBM)
            • Wet electromagnetic roll separators (EVM)
            • Dry electromagnetic roll separators (EVS)
            • Electromagnetic roll separators with top feed (EVS-V)
            • Electrostatic separators
            • Wet high gradient rotor separator (ERM)
            • PBST dry drum separators
            • Demagnetizers
            • Tube analyzer (Davis tube)
          • Feeders
            • Назад
            • Feeders
            • Spring (light) feeders
            • Shock absorber (heavy) feeders
            • Control units (cabinets)
          • Samplers
            • Назад
            • Samplers
            • Sampler 63OP
            • Sampler 66OP
            • Sampler 66OP-01
          • Spare parts
            • Назад
            • Spare parts
            • Spare parts for equipment
        • Powder materials
        • Waste processing solutions
          • Назад
          • Waste processing solutions
          • Glass waste
          • WEEE – waste of electrical and electronic equipment
          • Waste paper
        • E-catalogues
        • Equipment applicability
      • Services
        • Назад
        • Services
        • Research using customers materials
        • Delivery
        • Warranty and spare parts
      • News
      • RSF scientific project
        • Назад
        • RSF scientific project
        • School of Young Scientists
      • Contacts
      • 8 800 550 35 56
      St. Petersburg, 22nd line, 3, bld. 5
      sales@mtspb.com
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      • Equipment
      • Laboratory equipment
      • Crushing and grinding

      Crushing and grinding

      Jaw crushers
      Jaw crushers
      Vibrating cone crushers
      Vibrating cone crushers
      Roll crushers
      Roll crushers
      Hammer crushers
      Hammer crushers
      Ball mills
      Ball mills
      Vibrating pulverizers
      Vibrating pulverizers
      Disc pulverizers
      Disc pulverizers
      Crushing or disintegration is a process of mechanical destruction of solid raw material. The construction materials, chemical raw materials, solid minerals, abrasive materials, some kinds of plant raw materials, solid secondary raw materials are subject to crushing.

      First crushing equipment

      The first industrial rock crushing machines were created in the late 18th century when the English engineer, Black, invented the so called jaw crusher. The crusher applied the crushing force for the pieces of hard construction raw material, for example, granite, between the immovable liner plate and mobile plate making oscillating movements. The jaw crusher had ingeniously simple and reliable design so that similar machines have been manufactured for mining companies in large quantities already. Of course, the driver of the first jaw crushers was the steam engine but not the electric motor like today. The crushers can be of different typical size - from laboratory to industrial ones for large raw materials crushing. The largest ones have the feed opening (“mouth”) of 2.1*2.5 m and are capable of taking the ore up to 1.5-1.7 m.

      Development of crushing equipment in the industry

      The further development of the crushing equipment was marked by creation of the so called cone crushers where the rock mass is destroyed by the compressive and shear forces between the immovable external cone and internal cone rolling over the inner surface of the external cone. The cone crushers used for coarse crushing have steeper profile of the crushing chamber than that of the cone crushers for medium and fine crushing. The maximum piece the cone coarse crushing can receive is 1.2-1.3 m. In general, the cone crushers have higher efficiency than the jaw ones and provide for better splitting of the crushed materials. The advantage is also the opportunity to work “under rubble” of the ore feed while the jaw crushers need more accurate adjustment of the feed. Both the cone and jaw crushers have rigid kinematics that is determined by the design of eccentric units that ensure the motion trajectory of the crushing elements (jaw, cone). That is why these crushers can automatically and flexible response to changing strength properties of the crushed material.
      The peculiarities of the jaw and cone crushers are their rather limited capacities in splitting the crushed material size. Usually, the splitting ratio does not exceed 4-5. That is why   the ore preparation schemes use three or four crushing stages in strict sequence.

      Efficient use of the crushing equipment

      The splitting ratio of the ore size per stage is possible due to using the principle of the material crushing primarily by the shear and partially compressive forces. Such crushing principles provide for breaking in the cleavage planes of the mineral aggregates and in their structural microfractures, thus  allowing for material splitting by 5-10 times. The units implementing the shear principle during crushing of minerals include the KID series vibrating cone crushers and high-pressure press roll crushers. Such crushers are primarily used for fine crushing.  For crushing less hard material than the massive crude ore, for example, for crushing the limestone, plaster-stone, or breaking the solid domestic waste, the rotor crushers are used. The most common type of high-speed rotor crushers are the hammer crushers which crushing elements are the plate-type bars (hammers) made of impact-resistant steel that are freely suspended on the horizontal or vertical shaft. The prerequisite of the hammer crusher operation is precise proportioning of the feed material supply to prevent crusher overloading and emergency stop.


      For purchasing of the equipment you are interested in or for more detailed information, please  contact us by phone +7 (812) 331-02-42.

      REC Mekhanobr Tekhnika reserves the right to change the equipment specifications.
      • Laboratory equipment
        • Crushing and grinding
          • Jaw crushers
          • Vibrating cone crushers
          • Roll crushers
          • Hammer crushers
          • Ball mills
          • Vibrating pulverizers
          • Disc pulverizers
        • Classification equipment
        • Concentration
        • Splitting-dividing
        • Dehydration and clarification equipment
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      8 (800) 550-35-56 8 (812) 331-02-42
      sales@mtspb.com
      St. Petersburg, 22nd line, 3, bld. 5
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