Randolph Austin Company

In 1957 we began to build and sell peristaltic pumps out of Houston, Texas. Since 1974 our pump and tubing operation have been located in Manchaca, Texas. As one of the oldest manufacturers of peristaltic pumps, Randolph has maintained a loyal following by delivering “rugged, reliable and simple to use” peristaltic pumps. We machine all the components of our pumps to our exacting specifications and extrude our own tubing. Our ability to control every facet of the manufacturing process continues to ensure prompt delivery of a quality product. The Randolph pump can be found working in industries such as ink pumps for printing (ink pumps are an important customer segment for Randolph Austin), food and beverage, pharmaceutical, nuclear, and wastewater. With many standard models available for quick delivery, we also provide custom solutions to various applications.

Company details

2119 F.M. 1626, P.O. Box 988 , Manchaca , Texas 78652 USA

Locations Served

Our Distributors

Business Type:
Industry Type:
Pumps & Pumping
Market Focus:
Internationally (various countries)
Year Founded:

This company also provides solutions for other industrial applications.
Please, visit the following links for more info:


Randolph Austin Company began manufacturing flexible plastic tubing in 1981 when one of our manufacturing applications required very precise and fine-tolerance tubing which was not readily available from other flexible hose manufacturers.

Since that time Randolph Tubing has developed several types of tubing to complement the Randolph Pump in the transferring of different solvents, acids, slurries, inks and food products.

Because of our expertise in working with the Randolph peristaltic pumps, we know our tubing will work with most of the pumps on the market. Over the years, through rigorous research/development and testing (working closely with our customers) we now manufacture six different lines of flexible tubing for various fluid compatibility and applications: Cilran™, ED-Plex™, Prothane II™, Povinal™, Vytex™ and T-Alimen™, our newest and food-safe tubing for peristaltic pumps.

Water Soluble Plastic Tubing

In addition to our flexible tubing lines, in 1989 we developed a water soluble plastic material that is now used for packaging of foaming agents used in increasing gas well production. It is also used as a carrier for biocides and other applications requiring water soluble packaging.

Prothane II™

In the early nineties we began work on a urethane soft enough to work as peristaltic pump tubing. Prothane II was developed for applications requiring demanding flex life and durability. It is now one of our most popular tubing types, and is one of the softest and most durable urethane tubing on the market.

Randolph Tubing also has food grade vinyl tubing as well as solvent resistant tubing used for transferring aromatic hydrocarbons such as toluene and xylene.

In addition to our extruded tubing lines Randolph Austin Company is a diverse company that is associated with the following companies:

  • Prototype Machine, Flatonia, TX
  • Cryogenic Plastics, Kyle, TX
  • High Performance Gear, Manchaca, TX


Randolph Tubing manufactures close tolerance, flexible and very durable tubing for most fluid transfer applications. 

Randolph flexible tubing is ideally suited for rugged use in peristaltic pumps as well as general transfer of fluids including harsh acids, inks, and solvents and abrasive materials.

Cilran™  for strong acid and alkali solutions.

ED-Plex™  for acid, alkali and many alcohols. Good general purpose tubing.

Prothane II™  for inks, slurries, and viscous materials – tensile and flex fatigue properties make it excellent for peristaltic pumps.

Povinal™  for aliphatic, aromatic and chlorinated solvents. Highly flexible, excellent for hose pumps.

Vytex™  for food, beverage, and general purpose applications. Smooth internal bore, easy cleaning.

T-Alimen™  for food and beverage grade tubing.


Precise metering pumps? Ink pumps? Heavy-duty industrial pumps? Randolph peristaltic pumps are the pumps that never get wet. 

Randolph peristaltic pumps are small to large – pumping anywhere from .0015 liters (3 teaspoons, or .05 fluid ounces) per minute, up to 79.5 liters (21 gallons) per minute. They are precise and rugged, robust and easy to use. We make positive displacement pumps for many different applications, from precise metering pumps for medical and pharmaceutical applications, to OEM ink pumps for Flexographic and other printing presses, to medium and large tube pumps for the food and beverage industry and other fluid transfer applications. We even make explosion-proof pumps. Controls can include variable speed, reversible speed, remotely-operated peristaltic pumps and fixed-speed, with controls operable in AC or DC. We will even design and manufacture a custom assembly upon request.

For over 65 years, Randolph Austin has made and sold rugged and reliable peristaltic pumps. We have positive displacement pumps (tube pumps, where a cam forces the fluid forward in a flexible tube) for virtually any application where the pump cannot come in contact with the fluid being transferred. Contact us now and find the pump you need.

  • Food, Drugs and Beverages
  • Water and Wastewater
  • OEM applications
  • Pulp and paper
  • Print and packaging
  • Paints and pigments
  • Defense

At Randolph Austin we realize that not every off-the-shelf item is a fit for all pumping applications, and we will work with our customers to provide custom pump assemblies that meet their requirements. If our standard items don’t meet your needs, talk to our sales staff about custom applications, materials, motors, and any other requirement you might have.

We have built custom dual head pumps, stainless carts with peristaltic pumps, dual timer dispensing units, as well as specialty configurations for applications as varied as pharmaceutical to under-sea applications.

Need a solution for an OEM application?

We’ve Got That Too!!!

As the exclusive distributor for Thoelen pumps in North America, Randolph Austin Company has added more selection to its range of peristaltic pumps. Thoelen pump offers a broad array of pump choices for the OEM and laboratory market in mind.

There are four basic models for the OEM; TP S-50, TP-2004, TP-3005 and TP-4000. These pumps are excellent choices for applications such as condensation pumps, intermittent dispensing units, food and beverage as well as a host of other applications. Thoelen Pump Specifications.


Randolph Austin Company, through our partnership with Thoelen, now offers a variety of very precise dosing and metering pumps as well as more economical variable speed pumps for industrial and laboratory applications.

Randolph Austin Company, through our partnership with Thoelen, now offers a variety of very precise dosing and metering pumps as well as more economical variable speed pumps for industrial and laboratory applications.


For precision metering, the TP 1000V is an excellent choice. The unique design of the pump incorporates a fixed internal rotor for each of the four different internal diameters (1.6, 3.2, 4.8, or 6.4mm). With its precise control features and calibration process, the pump dispenses fluid in an extremely repeatable manner. This pump is an excellent choice for biotechnology, laboratory, and pharmaceutical applications, as well as small to medium batch filling or for dispensing against pressures of up to 3 bar (43.5 psi).

A more economical alternative to precision metering of the TP-1000V, the TP-4000V offers the same control configuration as the TP 1000V, but with a more traditional peristaltic pump head. It still is an excellent choice for metering and filling applications that can accommodate a little more variability in the process and don’t require a pressure discharge.