Efficient fluid handling plays a vital role in maintaining production quality and speed. Inconsistent flow or pressure can lead to challenges like uneven application, increased waste, or operational slowdowns. For industrial operations working with low- to medium-viscosity fluids, having reliable pumping solutions helps ensure smooth, predictable performance across your processes.
Proven Solutions for Diverse Applications
ARO 2-ball pneumatic piston pumps are among the most versatile in our product line. Designed to handle materials up to 100,000 centipoise with flow rates reaching 18.1 gpm, these pumps adapt to diverse industrial needs—from spray finishing and material supply to extrusion and lubrication. The two-ball check design provides the foundation for uniform delivery, while pneumatic operation offers flexibility across multiple applications and operating conditions.
Applications Where 2-Ball Pumps Excel
Uniform Flow for Consistent Quality
The two-ball check design delivers smooth, uniform fluid flow at precise pressure—maintaining the consistency that keeps quality high and rework low across spray, transfer, and dispensing applications.
Handle Sensitive and Abrasive Materials
Minimized friction points help prevent fluid shear, protecting sensitive materials during transfer. Smooth internal passages maintain consistency with abrasive and high-solid materials. Optional ceramic coating offers additional protection against highly abrasive fluids.
Straightforward Pneumatic Operation
Fewer moving parts mean simpler maintenance and no motor burnout risk. Pneumatic components are field-serviceable and built for long life in industrial environments.
Lower Total Cost of Ownership
Reliable performance reduces material waste and unplanned maintenance. Consistent output improves quality while lowering overall operating costs.
Comprehensive Support from Specification to Service
Our technical team brings decades of fluid handling experience. We help you select the right pump configuration for your materials and application requirements, then provide ongoing support to keep your operation running smoothly.
Use case: Localized dispensing, low-volume transfer, or small-scale extrusion
AF0645 Series 2-Ball Piston Pumps & Packages features; *45:1 Ratio *6" Air Motor *1.9 GPM (7.3 l/min) Max Flow *Max Fluid Pressure: 5,459 psi (376.3 bar)
AF0660 Series 2-Ball Piston Pumps & Packages features: *60:1 Ratio *6" Air Motor *1.4 GPM (5.4 l/min) Max Flow *Max Fluid: 6,000 psi (413.7 bar)
NM2202X-X1-X31 N Series 2-Ball Piston Pump feature: 2:1 Ratio, 2" Air Motor, 2.15 GPM (8.14 l/min) Max Flow, Max Fluid Pressure: 351 psi (24.2 bar).
NM2304X-X1-X11 N Series 2-Ball Piston Pump features: 4:1 Ratio, 3" Air Motor, 2.1 GPM (8 l/min) Max Flow, Max Fluid Pressure: 600 psi (41.4 bar)
Use case: Continuous extrusion, medium-volume transfer, lubrication, coatings
AF0409C Series 2-Ball Piston Pumps & Packages include the following features; *9:1 Ratio *4 1/4" Air Motor *2.8 GPM (10.5 l/min) Maximum Flow
ARO AF0828B Series 2-Ball Piston Pump feature: *28:1 Ratio *8" Air Motor *6.27 GPM (23.7 l/min) Max Flow *Max Fluid Pressure: 3360 psi (231.6 bar)
ARO AF0840 Series 2-Ball Piston Pump features: 40:1 Ratio, 8'' Air Motor, 3.7 GPM (14 l/min) max flow and Max Fluid Pressure: 4,967 psi (342.5 bar)
AF1265B Series 2-Ball Piston Pumps & Packages features: *65:1 Ratio *12" Air Motor *6.27 GPM (23.7 l/min) Max Flow *Max Fluid pressure: 5,850 psi (403.3 bar)
Use case: Bulk transfer, high-volume production, continuous-feed systems
AF0810 Series 2-Ball Piston Pump features; *10:1 Ratio *8" Air Motor *15.6 GPM (58.9 l/min) Max Flow *Max Fluid Pressure: 1,200 psi (82.7 bar)
AF1015 Series 2-Ball Piston Pump features; *15:1 Ratio *10" Air Motor *18.1 GPM (68.6 l/min) Max Flow *Max Fluid Pressure: 1,350 psi (93 bar)
ARO AF1223X5 UV/EB Series 2-Ball Piston Pumps & Packages features: *23:1 Ratio *12" Air Motor *18.1 GPM (68.6 l/min) *Max Fluid Pressure: 2,070 psi (142.7 bar)
Use case: High-pressure extrusion, viscous materials, specialty coatings
AF0645 Series 2-Ball Piston Pumps & Packages features; *45:1 Ratio *6" Air Motor *1.9 GPM (7.3 l/min) Max Flow *Max Fluid Pressure: 5,459 psi (376.3 bar)
AF0660 Series 2-Ball Piston Pumps & Packages features: *60:1 Ratio *6" Air Motor *1.4 GPM (5.4 l/min) Max Flow *Max Fluid: 6,000 psi (413.7 bar)
ARO AF0828B Series 2-Ball Piston Pump feature: *28:1 Ratio *8" Air Motor *6.27 GPM (23.7 l/min) Max Flow *Max Fluid Pressure: 3360 psi (231.6 bar)
ARO AF0840 Series 2-Ball Piston Pump features: 40:1 Ratio, 8'' Air Motor, 3.7 GPM (14 l/min) max flow and Max Fluid Pressure: 4,967 psi (342.5 bar)
AF1265B Series 2-Ball Piston Pumps & Packages features: *65:1 Ratio *12" Air Motor *6.27 GPM (23.7 l/min) Max Flow *Max Fluid pressure: 5,850 psi (403.3 bar)
With models ranging from compact 2" air motors to high-capacity 12" configurations, and ratios from 2:1 to 65:1, we offer solutions that match your specific viscosity, flow rate, and pressure requirements. Our technical team can help you identify the optimal pump configuration for your materials and processes.
Contact us today for expert guidance on selecting your 2-ball piston pump, request a quote, or locate your nearest authorized ARO dealer.
A piston pump motor is the driving force behind a piston pump — a type of positive displacement pump that moves fluids using a back-and-forth motion.
Your formulation hasn't changed. Your process parameters look identical. Yet one batch passes quality control with flying colors while the next gets rejected for inconsistent viscosity or trapped air bubbles. The real issue? Unstable flow during transfer and dispensing.