Our hydraulic airless spray pumps are engineered for massive volume and continuous, large-scale commercial applications. Powered by heavy-duty petrol or diesel engines or high-output electric motors, these rugged machines deliver unyielding torque to shift high-viscosity coatings over massive areas.

With a slow-stroking hydraulic piston design, our range minimizes mechanical wear while maximizing fluid delivery. This makes them the ultimate high-production solution for heavy roof membranes, block fillers, high-build architectural coatings, and protective liners.

Browse our range below to find the ideal flow rate and maximum tip size capacity for your high-volume projects.

hydraulic spray pumps

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A Brief Guide on Pneumatic Spray Pumps

Hydraulic airless spray units are the definitive choice for high-volume contractors executing large-scale commercial, infrastructure, and protective roofing projects. Engineered for continuous duty cycles, these high-production machines excel at moving high-viscosity materials that would stall standard mechanical drivetrains.

What Distinguishes Hydraulic Units from Electric & Pneumatic?

  • Smooth, Linear Power Delivery: Unlike mechanical gearboxes that experience high wear under extreme loads, hydraulic systems use pressurized hydraulic oil to stroke the displacement piston. This creates an incredibly smooth, slow stroke that reduces friction and extends packing life.
  • Extreme Substrate Versatility: Because the hydraulic motor delivers massive, unyielding torque, these units can easily handle large-bore spray tips to apply ultra-thick, high-build materials over massive square meterages.
  • Maximum Thermal Efficiency: Hydraulic oil acts as a natural cooling mechanism. This allows the machine to run at maximum output all day long in hot South African conditions without the risk of electrical overheating or motor burnout.

The Operational Golden Rule for Hydraulic Pumps

Maximize productivity on high-build coatings without mechanical strain.

Because the fluid section utilizes a longer stroke and a slower cycle rate compared to smaller electric units, it moves a much higher volume of paint per cycle. This slow-stroking action significantly reduces abrasive wear on the piston and packings, making hydraulic units the most cost-effective long-term choice for high-volume architectural contracting and roof-barrier applications

Typical coatings for hydraulic spray systems

Heavy Roofing & Performance Coatings: Hydraulic spray pumps are engineered for continuous, large-scale application of thick, high-build roof membranes and liquid-applied membranes like Flowcrete / Tremco systems, heavy acrylic waterproofing, and thick bituminous coatings.

Disclaimer: Always refer to your paint data sheet for equipment recommedations or consult our sales team. Reference to these commercial coatings is for informational and machine-compatibility purposes only and does not imply official endorsement, sponsorship, or affiliation between Storm Machinery and the respective paint manufacturer.