Ultra Accurate Servo Rotary Valve Pump

Product Overview

The E-R Servo Drive Rotary Valve Pump is a high-performance precision metering pump engineered exclusively for dispensing medium to high viscosity liquids and particle-containing fluids—a critical solution for industries demanding consistent, accurate filling. Equipped with a ceramic rotary valve (a core component ensuring stable fluid control) and driven by either a stepper motor or servo motor paired with a precision ball screw system, this pump delivers exceptional linear motion control, eliminating the need for time-consuming mechanical adjustments. All dispensing parameters are intuitively set via a color touch panel, streamlining operation and reducing human error. Constructed with 316 stainless steel, the pump boasts superior corrosion resistance, making it suitable for harsh industrial environments. With a typical ±0.5% dispensing accuracy, it excels in high-speed production lines—most notably in zinc-gel alkaline battery filling—while also serving sectors like cosmetics, food processing, and industrial lubrication.

Key Features

High-Precision Ceramic Rotary Valve

At the heart of the E-R Servo Drive Rotary Valve Pump is its ceramic rotary valve, precision-ground to ensure tight sealing and smooth fluid flow. Unlike standard metal valves, ceramic resists wear from abrasive particles (e.g., in sauces or zinc gel), maintaining accuracy even after long-term use. This design is the reason the pump reliably handles particle-containing fluids that would damage conventional pumps.

Stepper/Servo Motor & Precision Ball Screw System

The pump’s stepper motor or servo motor works in tandem with a precision ball screw to deliver micron-level linear motion control. Servo motor models are specifically optimized for high-speed alkaline battery lines, where rapid, consistent filling is non-negotiable. Stepper motor options, meanwhile, offer cost-effectiveness for medium-speed applications—both eliminate mechanical tweaks, as all settings are digital.

±0.5% Dispensing Accuracy

Critical for industries like battery manufacturing and cosmetics, the ±0.5% dispensing accuracy ensures every dose matches specifications. This level of precision reduces material waste (e.g., expensive silicone oil or mascara) and guarantees product uniformity, a key factor in meeting quality standards (e.g., FDA for food products).

316 Stainless Steel Construction

The pump’s full 316 stainless steel build provides exceptional resistance to corrosive fluids (e.g., industrial greases or acidic sauces) and simplifies cleaning—essential for food and pharmaceutical-adjacent applications. This material choice also extends the pump’s lifespan, lowering long-term maintenance costs.

Versatile Dispensing Volume Range

Covering needs from micro-dosing to bulk filling, the E-R series offers volumes from 0-0.23 mL (model E1-R03) to 0-261 mL (model E4-4-R34). This versatility makes it ideal for small-batch cosmetics (e.g., lipstick) and large-scale battery production alike.

Applications

Battery Manufacturing

The E-R Servo Drive Rotary Valve Pump is a staple in zinc-gel alkaline battery filling lines. Its ability to handle viscous zinc gel without clogging (thanks to the ceramic rotary valve) and maintain high-speed operation (via servo motors) keeps production lines efficient.

Cosmetics & Personal Care

For thick formulations like mascara, lipstick, and Vaseline, the pump’s precision ensures consistent product volume in every tube or jar. The 316 stainless steel construction also meets hygiene standards for beauty products.

Food & Beverage

Ideal for filling sauce, butter, cheese, and mayonnaise, the pump resists food-based acids and is easy to sanitize. Its accuracy prevents overfilling, reducing product loss and ensuring compliance with food safety regulations.

Industrial Fluids

The pump dispenses grease and silicone oil with minimal waste, making it suitable for automotive and machinery maintenance. The ceramic valve’s durability stands up to abrasive additives in industrial fluids.

FAQ

What viscosity range works with the E-R Servo Drive Rotary Valve Pump?

It is optimized for medium to high viscosity liquids (1000–100,000 CPS), such as zinc gel, grease, and mascara. Low-viscosity fluids (e.g., water) may require a check valve pump (see E-C series).

Can it handle fluids with large particles?

Yes—its ceramic rotary valve is designed for particle-containing fluids (e.g., chunky sauce or zinc gel). For particles larger than 2mm, contact us for custom valve modifications.

What’s the maximum cycle rate of the E-R pump?

Cycle rates range from 0-40 CPM (models E3-R20/E3-R26) to 0-60 CPM (model E4-1-R34), depending on the model. Servo motor variants support higher speeds for mass production.