Electrically operated piston pump with lightning protection


The Lincoln P623S and P623M electrically operated pumps have been designed to withstand electromagnetic pulses caused by lightning strikes. An extension of the P603 pump series, the P623S is for use in single-line automatic lubrication systems, while the P623M is for use in progressive automatic lubrication systems.

Working closely with customers to develop product solutions that meet specific needs, SKF developed the P623S and P623M for onshore and offshore wind energy applications. In addition, these pump units are suitable for use in construction, mining and renewable energy applications where lightning protection must be considered.

The P623S and P623M pumps feature a power supply board that transfers 230 V to 24 V (control) with overvoltage protection to discharge 8 KV (electric grounding).
The pump units are available with a grease follower plate for rotating applications or a stirring paddle for stationary applications.

Features and benefits:

  • Reduces operational risk compared to standard automatic lubrication
  • Offers higher safety standards
  • Brings lubrication system into compliance
  • Protection class IP 67
  • Technical features
    Function principleElectrically operated piston pump
    Lubricantgrease: up to NLGI 2
    Number of lubricant outletsP623M: max. 3
    P623S: 1
    Delivery per pump element
    0,22 cm3/stroke
    0,0134 in3/stroke
    Capacity of the reservoir4; 8; 10; 15; 20 l1,06; 2,11; 2,64; 3,96; 5,28 gal.
    Weight (empty pump)8; 10; 12; 14; 19 kg17,64; 22,05; 26,45; 30,86; 41,89 lb.
    Operating pressuremax. 320 bar4640 psi
    Operating temperature–25 to +55 °C–13 to +131 °F
    Protection classIP 67
    LPZ0 (Lightning Protection Zone) according
    generic standard EN61000-6-2
    8 kV
    Electromagnetic compatibility (EMC)2014/30/EU
    min439 x 220 x 278 mm17,28 x 8,66 x 10,94 inch
    max976 x 220 x 278 mm36,1 x 8,66 x 10,94 inch
    Mounting position

    Vertical, i.e. lubricant reservoir at top

    Versions with follower plate can also be used for rotating applications

  • Applications
  • Related downloads
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