Results 1 to 5 of 5

Thread: Cost of operatiopn between an electric press and a hydraulic press

  1. #1

    Cost of operatiopn between an electric press and a hydraulic press

    All,

    We currently have a varieties of electric and Hydraulic presses at our production facility.

    I was wondering what the best way to determine the cost of production (strictly from the machine standpoint) for a electric press versus an hydraulic press.

    I.E. if the same tool with the same processing conditions was ran in an electric press versus an hydraulic press what would be the cost difference? How could one find this cost difference?

  2. #2
    Join Date
    Feb 2016
    Location
    San Francisco Bay Area, CA
    Posts
    111

    Re: Cost of operatiopn between an electric press and a hydraulic press

    At previous company we ran a lot of thin-wall multi-cavity pipette tips that required incredibly fast injection speeds. The machine manufacturer explained a hydraulic injection (w/ accumulator) would use much less energy than an electric press at those high injection speeds. So it might depends on the specific process in question. There's probably some trade-off at some point based on processing conditions..

    I wonder if there's a device you can use to monitor energy consumption at the machine - and compare electric vs hydraulic running the same molding conditions.

  3. #3
    Join Date
    Oct 2016
    Location
    McMinnville, OR
    Posts
    93

    Re: Cost of operatiopn between an electric press and a hydraulic press

    I know some manufacturers will install a device inline to measure energy consumption. You can also look at scrap and cycle time.

  4. #4
    Join Date
    Aug 2011
    Location
    Upstate of South Carolina
    Posts
    575

    Re: Cost of operatiopn between an electric press and a hydraulic press

    Ask your local power company to help with readings. The power company should help and you can ask about rebates from them plus your state.
    But there are intangibles to consider like NOT having to expand your chiller and tower systems due to reduced loading.
    Rick

  5. #5
    Join Date
    Jun 2018
    Posts
    1

    Re: Cost of operatiopn between an electric press and a hydraulic press

    Hi
    Really today, there are three types of machines, fully hydraulic, hybrid and all electric.
    The energy consumption of the resistances is the same, also that of cooling water.
    For the rest, regarding the hydraulics, there were small reductions in hybrid machines and depending on the duration of the refrigeration cycle there were greater reductions in all electric machines.
    Today, with power reducers using Sinusoidal Motor Efficiency Controllers for the hydraulic pump, the energy consumption of a hydraulic and an all electric machine is the same.
    The cost of reforming a hydraulic machine in all electric is 3 times that of installing an efficiency controller. The return on investment of the latter option is less than one year, 3 times less than the installation of servomotors. The time of modification of this modification is about 20 minutes, while the installation of servomotors and drivers could take a week.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •