Core Technology & Working Principle
A rotor-stator pump works by accelerating product through a controlled gap rather than by stirring it. The rotor draws material axially into the head and throws it radially through the gap between rotor and stator, where it is subjected to high shear, mechanical friction and micro-cavitation in the same instant. Because the head is a fixed geometry and the shaft runs at a fixed speed, the shear a droplet sees is the same for the first litre and the ten-thousandth, which is what a batch vessel cannot promise.
▲ Every Drop Sees the Same Shear
The head is a fixed gap at a fixed speed, so there is no by-pass path and no region of the vessel that gets less shear than another. Distribution width comes out narrow because the shear history is uniform.
▲ Shear Without a Vessel
The mixing vessel is replaced by a pipe run. That removes the batch size limit from the shear step entirely, which is what makes continuous operation possible on a line that would otherwise need a large tank.
▲ Multi-Stage, Not Longer
One, two or three rotor-stator pairs can be stacked in the same housing, so the product sees progressive shear in a single pass. Staging adds passes without adding a second pump.
Precision Engineered Details
An inline machine lives or dies on three details: the head geometry, the seal that keeps the pressurised pipe closed, and the connections that tie it into the line.
Sanitary Wetted Metallurgy
Wetted parts in mirror-polished SS304 or SS316L where the product is cosmetic, food-adjacent or simply requires a cleanable surface.
PWR Technical Parameters
Nine models cover 2 to 80 cubic metres per hour. The first four run at 3,000 rpm with smaller chambers; from the 37 kW model upward the speed drops to 1,500 rpm and the chamber grows, because at that scale pumping volume matters more than peak tip speed.
| Model | Motor (kW) | Speed (rpm) | Flow Rate (m³/h) | Inlet | Outlet |
|---|---|---|---|---|---|
| PWR-4 | 4.0 | 3,000 | 2 – 14 | DN40 | DN32 |
| PWR-75 | 7.5 | 3,000 | 8 | DN50 | DN50 |
| PWR-110 | 11.0 | 3,000 | 12 | DN65 | DN50 |
| PWR-220 | 22.0 | 3,000 | 22 | DN65 | DN80 |
| PWR-370 | 37.0 | 1,500 | 30 | DN100 | DN100 |
| PWR-550 | 55.0 | 1,500 | 40 | DN125 | DN100 |
| PWR-750 | 75.0 | 1,500 | 55 | DN125 | DN100 |
| PWR-900 | 90.0 | 1,500 | 65 | DN125 | DN100 |
| PWR-1100 | 110.0 | 1,500 | 80 | DN150 | DN125 |
Reference projects in your industry are available on request.
Our Manufacturing Advantages
🏢 Direct Source Factory
Shanghai Polyc Technology Co., Ltd. is not a reseller. Every PWR inline emulsifier pump is machined, assembled and tested at our Wuxi plant, so you buy at the factory price and speak directly to the engineers who built it.
✈️ 30–45 Days Fast Delivery
Standard models ship in 30–45 days from confirmed drawings, thanks to our integrated vertical in-house production lines.
🛡️ Strict Quality Control
Key welds, seals and running accuracy are inspected before assembly, and each machine is run at the factory before packing.
🔧 3-Year Global Warranty
Every unit is covered for three years, with remote video support and spare parts stocked for dispatch worldwide.
Target Application Spectrum
An inline head is specified where the shear step has to become continuous, or where the batch size has outgrown the vessel that used to do the job.
Continuous Emulsion Lines
Oil-in-water and water-in-oil production where the emulsion is made in the pipe rather than in a tank.
Powder Wetting Into Liquid
Inline incorporation of powder into a liquid stream, where the head both wets and disperses in one pass.
Coatings & Adhesive Circuits
Let-down and finishing stages where a once-through pass replaces an extra batch mix.
Food & Cosmetic Emulsions
Sanitary circuits where a cleanable, mirror-polished wetted path is a requirement rather than an option.
Moving Your Shear Step Into the Line?
Send us the formulation viscosity, the required flow rate and whether you need a single pass or recirculation — our engineers will confirm the head geometry, stage count and seal arrangement, then quote directly from the Wuxi factory.
Technical FAQ
Short answers to the questions asked before specifying an inline emulsifier pump.