Single Component 55 Gallon Drum Pump for Expansion Joint Filling (AST SP 55)


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Used to Dispense

  • Silicones
  • Single Part Urethanes
  • Fire Stop Material

Common Applications

  • Joint Filling and Sealing
  • Caulking

AST SP 55-C: The Ultimate Single Component Drum Pump for Expansion Joint Filling & Sealing

Engineered for High-Volume Industrial Applications

When it comes to high-volume joint filling and sealing, the AST SP-55 Single Component Drum Pump sets the industry standard. Designed for professionals in need of a robust, high-performance dispensing system, the SP-55 offers unparalleled efficiency and precision.

Note: the SP-55 is a higher output version of the AST SP-5

High-Volume Dispensing: Unmatched Throughput

The AST SP-55 is engineered for speed and efficiency. With a flow rate of up to 2 gallons per minute—dependent on viscosity—this drum pump is built to handle high-volume applications. Its adjustable flow rate allows for precise control, making it an indispensable asset for large-scale, industrial operations.

Extreme Pressure Capabilities: Built for Tough Jobs

With fluid pressures up to 3,000 psi and viscosities up to 1,000,000 cps, the SP-55 is designed to tackle the most demanding joint filling and sealing tasks. Its high-pressure, self-priming feature ensures consistent, reliable performance even under extreme conditions.

Common Materials Dispensed

  • Dow 890
  • Dow 888
  • Sika 1A
  • BASF SL1


  • Uses AST CMP metering pump
  • Flow up to 2 gpm dependent upon viscosity
  • Fluid pressures up to 3,000 psi
  • Viscosities up to 1,000,000 cps
  • Optional pneumatic elevator
  • 5:1 to 30:1 power factor ratio
  • Adjustable flow rate
  • 55 gallon drum feed with follower plate
  • High pressure / self-priming
  • 6″, 8″, or 10″ diameter drive cylinder
  • Pneumatic powered
  • Metered shots or continuous flow
  • 3″ diameter double post pneumatic arm
  • Pumps abrasive materials

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About AST Equipment

Advanced Systems Dispensing (AST) equipment is part of APPLIED Adhesives Equipment Solutions. APPLIED is continuing its commitment to engineering and the development of adhesive dispensing systems and automation solutions for the industrial and construction markets.

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