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Thread: Brakes in Belt Conveyors

  1. #1
    ARDasgupta Guest

    Brakes in Belt Conveyors

    It has been observed that in many applications of belt conveyors either DC electromagnetic (DCEM) or thrustor brakes are used. In some cases, even AC electromagnetic brakes (ACEM) are used. I would request you to help me for the following:-
    1. Technically which type of brake is better for belt conveyors i.e., DCEM or Thrustor or ACEM, for same braking torque?
    2. Costwise which one is better over other types (among DCEM, thrustor and ACEM)
    3. Can I have a comparative statement for these three types of brakes

  2. Brakes in belt conveyor

    Dear Mr.Dasgupta,
    Types of brake used is depend upon application only.DCEM brake is very reliable & used very offen within the permissible limit of torque. In case of long distance conveyor Thrustor brake is used. ACEM is used where instant stopage is required.In crane it is used.Cost of DCEM brake is marginally higher.
    Regards.
    A.Banerjee

  3. #3
    Lawrence K. Nordell

    Lawrence K. Nordell

    President and CEO

    Conveyor Dynamics Inc. [eDir]

    Conveyor Dynamics Inc.

    Professional Experience 58 Years / 8 Month Lawrence K. Nordell has 58 Years and 8 Month professional experience

    Discussions 2608 Lawrence K. Nordell acceded to 2608 discussions, Articles 0 Lawrence K. Nordell wrote 0 articles, Publications 0 Lawrence K. Nordell Nordell released 0 publications

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    Know-How Design (1521) Lawrence K. Nordell used this tag 1521 times, Pipe Conveyor (238) Lawrence K. Nordell used this tag 238 times, Chutes (119) Lawrence K. Nordell used this tag 119 times

    In many large overland and downhill conveyors hydraulic caliper brake systems are used and preferred over thrustor systems. DC and AC on-off brakes do not meet the technical needs.
    Lawrence Nordell
    Conveyor Dynamics, Inc.

    website, email & phone contacts:
    www.conveyor-dynamics.com
    nordell@conveyor-dynamics.com
    phone: USA 360-671-2200
    fax: USA 360-671-8450

  4. #4
    Lawrence K. Nordell

    Lawrence K. Nordell

    President and CEO

    Conveyor Dynamics Inc. [eDir]

    Conveyor Dynamics Inc.

    Professional Experience 58 Years / 8 Month Lawrence K. Nordell has 58 Years and 8 Month professional experience

    Discussions 2608 Lawrence K. Nordell acceded to 2608 discussions, Articles 0 Lawrence K. Nordell wrote 0 articles, Publications 0 Lawrence K. Nordell Nordell released 0 publications

    Searching nothing specified

    Know-How Design (1521) Lawrence K. Nordell used this tag 1521 times, Pipe Conveyor (238) Lawrence K. Nordell used this tag 238 times, Chutes (119) Lawrence K. Nordell used this tag 119 times

    Add thoughts:

    1. The conveyor design can contribute to lagging failure such as introducing drive slippage using poorly conceived takeup designs or not getting the forces correct

    2. Most, if not all, hot vulcanized lagging is superior to cold bonded when measured for overall performance

    3. Hot vulcanized lagging must be evaluated for its final form - the autoclave taping distorts the surface dimesions which can lead to belt mal-tracking

    4. Product properties such as red muds (iron ore fines, bauxite fines, nickel and brown coal (lignite)) and their influence on the coefficient of friction and material buildup.

    5. Item 4 points to load sharing problems as well
    Lawrence Nordell
    Conveyor Dynamics, Inc.

    website, email & phone contacts:
    www.conveyor-dynamics.com
    nordell@conveyor-dynamics.com
    phone: USA 360-671-2200
    fax: USA 360-671-8450

  5. #5
    Lawrence K. Nordell

    Lawrence K. Nordell

    President and CEO

    Conveyor Dynamics Inc. [eDir]

    Conveyor Dynamics Inc.

    Professional Experience 58 Years / 8 Month Lawrence K. Nordell has 58 Years and 8 Month professional experience

    Discussions 2608 Lawrence K. Nordell acceded to 2608 discussions, Articles 0 Lawrence K. Nordell wrote 0 articles, Publications 0 Lawrence K. Nordell Nordell released 0 publications

    Searching nothing specified

    Know-How Design (1521) Lawrence K. Nordell used this tag 1521 times, Pipe Conveyor (238) Lawrence K. Nordell used this tag 238 times, Chutes (119) Lawrence K. Nordell used this tag 119 times

    I think this is a first. The above comment was addressing a question on lagging. I do not know how this jumped.
    Lawrence Nordell
    Conveyor Dynamics, Inc.

    website, email & phone contacts:
    www.conveyor-dynamics.com
    nordell@conveyor-dynamics.com
    phone: USA 360-671-2200
    fax: USA 360-671-8450

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