Crude Oil Storage Mixing Solutions

Every day that a crude oil tank operates without proper mixing, BS&W accumulates — reducing usable capacity, degrading oil quality, and driving up maintenance costs. Milton Roy Mixing's side-entry agitators are engineered to stop this cycle permanently, keeping solids and water in homogeneous suspension from the moment of installation.

With over 60 years of proven performance across refineries, pipeline terminals, strategic petroleum reserves, and FPSO installations worldwide, our side-entry mixing systems deliver measurable results: up to 30% reduction in BS&W levels, full recovery of tank working volume, and dramatically extended intervals between cleaning operations.

The Problem: Sanding-In Costs You More Than You Think

When crude oil sits in storage, gravity works against you. Sand, salt, water, wax, and asphaltenes settle continuously, compacting into a dense sludge layer on the tank floor — a process known as sanding-in.

The consequences escalate with every month of inaction. Storage capacity shrinks as the sludge layer grows. Pump-out quality deteriorates as inhomogeneous crude reaches transfer lines. Downstream equipment — pumps, valves, heat exchangers, instrumentation — suffers accelerated erosion and fouling. Eventually, the only option is a full tank decommissioning for manual cleaning: a disruptive, hazardous operation that can cost over $1 million per tank and take weeks to complete.

Milton Roy's side-entry mixers prevent sanding-in at the source — continuously, reliably, and with minimal energy consumption.

Our Solution Portfolio for Crude Oil Storage

MR Product Photo Exterior side entry mixerH2C3 white

Custom-Engineered Side-Entry Mixers

Milton Roy's flagship side-entry mixing platform is purpose-built for large-diameter crude oil storage tanks — including floating-roof configurations where top-entry agitation is physically impossible. Each unit mounts directly through a standard tank shell nozzle and is equipped with the proprietary SABRE four-blade impeller — delivering the industry's highest flow-to-power ratio. The SABRE's optimized hydrofoil geometry produces a coherent, high-momentum liquid jet capable of reaching across tank diameters exceeding 120 metres, while consuming 15–20% less energy than conventional impeller designs

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SRMix with yellow motor and gray impeller on a flange.

SRMix: Ultra-Compact Side-Entry Mixers

Not every crude oil installation has the nozzle size, wall thickness, or space to accommodate a full-scale side-entry mixer. The SRMix is specifically designed for these constrained environments — thin-walled tanks, confined spaces, and retrofit installations where standard equipment would be too invasive. Available in three models, the SRMix covers tank volumes up to 5,000 m³ through a minimum flange of DN150 PN10, without requiring structural reinforcement. Its static safety sealing system eliminates the rotating-face mechanical seal entirely — reducing leak risk and maintenance burden in applications where containment integrity is critical.

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Not Sure Which Agitator Fits Your Process?

Tell us about your fluid, tank, and mixing objectives — our engineers will recommend the right solution within 48 hours.