Parr Instrument Company Blog

New Manufacturing Expansion

Parr Instrument Company has announced plans to build a 54,000 square foot facility adjacent to their existing building at the corner of 53rd Street and 4th Avenue in Moline, Illinois. The new state of the art facility will house the manufacturing operations of the company established in 1899. After completion of the new facility the existing 26,000 square feet of vacated manufacturing space will be renovated for administrative use.

Learn more!

#1 Dealer for New Orders in 2023!

Parr would like to congratulate Orbit Technologies Pvt. Ltd., our exclusive dealer in India for being Parr’s #1 Dealer for New Orders in 2023!

Parr’s VP of Sales & Marketing, Tim Lehman presented the trophy during a recent visit to India. Congratulations to all the members of the sales, marketing, technical, and order processing teams at Orbit for reaching this significant milestone!

Custom 25L Stirred Reactor System with Telescoping Stand

Parr Reactor Systems are highly customizable to meet application or space requirements. Parr was recently asked to design a 25L Stirred Reactor System that could be easily rolled into the user’s walk-in fume hood for use, then rolled out for storage between experimental campaigns.

The design includes:

  • Telescoping stand
  • Tilt-to-empty vessel assembly
  • Safety interlocks between pneumatic telescoping and tilting systems

Request a quote!

“Makers on the Move” Tour Visits Parr

Parr Instrument Company is honored to be part of the Illinois Manufacturers’ Association and IMEC’s Makers on the Move tour for Manufacturing Month. Mark Denzler with IMA, David Boulay with IMEC, State Senator Michael Halpin, Representative Gregg Johnson, Representative Dan Swanson, LaDrina Wilson from the Quad Cities Chamber of Commerce, Parr’s President & CEO Jim Nelson, & Parr’s Machine Shop Supervisor Nate Brown all spoke about the importance of manufacturing to businesses and our community.

Jim Nelson and Parr’s Operations Manager, Stacey Moon led the group on a tour of Parr’s facility while providing an overview of Parr’s products and its 124-year history. Guests were able to see Parr’s skilled machinists and manufacturing team at work creating high-quality Parr reactors, pressure vessels, and calorimeters.

Looking for a job in manufacturing? Join Parr’s amazing team!

Parr Voted Best Manufacturer!

Parr would like to thank the Quad Cities Regional Business Journal and their readers for voting us the Best Manufacturer for 2023!
At Parr we pride ourselves on designing and manufacturing safe, high quality laboratory equipment.

Join us at ACS Spring 2023!

Join us at ACS Spring 2023 in Booth #618!
Indianapolis, IN | March 26-30

Featuring Parr’s High Pressure Instruments for Sustainable Research!

Visit us at the AMPP Annual Conference + Expo!

Come see Parr’s new High Pressure, High Temperature Rotating Cylinder Electrode at AMPP 2023, March 19 – 23 in Denver!

Contact us for a Free One-Day Exhibit Hall Pass!

Standard vs. Custom Multiple Reactor Systems

Parr Instrument Company designs and builds both standard and custom parallel & multiple reactor systems for use in many industrial and academic laboratories for any number of processes that require elevated temperature and pressure.

Our standard systems include the popular Series 5000 Multiple Reactor System with six 45 mL or 75 mL reactors and our new Series 2500 Micro Batch System with three 5 mL or 10 mL vessel sizes. Any of our stirred reactor series can be combined in parallel to create custom parallel reactor systems.

Learn more.

Four Station Multiple Reactor
Four Station Multiple Reactor

Parr Fluidized Bed Reactors for Solids Processing

Fluidized Bed ReactorThere are many applications and configurations for which fluidized bed reactors have been successfully deployed in industry. The core element of a fluidized bed is the upward flow of a fluid (usually gas) through a bed of solids at a high enough flow rate to suspend or fluidize the particles in the fluid but not so high that they are transported out of the reactor. This leads to increased interaction between solids and fluid and decreased interaction of solids with each other and the wall. It also makes it easier to recover and/or recycle the bulk solids from the reactor.

These characteristics give fluidized bed reactor systems advantages over other types of reactors for some applications, despite the increase in complexity compared to fixed bed reactors.

Learn more.

Parr Oxygen Combustion Bomb Calorimeter Selection


There are a number of factors that can influence your choice for oxygen combustion bomb calorimetry. Precision, workload, and type of analysis will all make a difference in choosing the best model for your research needs.

We explain these factors and more in our newly updated Technical Note No. 105: Calorimeter Selection Guide. Download Parr’s Calorimeter Selection Guide (must be registered/logged in to access) to learn more or contact us for personalized help in selecting your calorimeter!