VWR Recognizes Stirling as 2017 Supplier of the Year for Equipment, Instruments, and Chromatography

It’s been less than a year since announcing our new distribution agreement with VWR, the leading global independent provider of product and service solutions to laboratory and production customers. That’s why we were so honored to recently receive VWR’s coveted Supplier of the Year Award for Equipment, Instruments, and Chromatography. Being recognized among so many well-regarded suppliers at VWR’s recent 2018 Americas Sales Conference demonstrates just how successful this great relationship has become in a short time!

These VWR awards recognize supplier accomplishments and excellence in operations, sales support and customer service. “Throughout the year, our suppliers collaborate with our Sales organization to ensure we provide innovative and customized solutions to meet our customers’ needs,” said Mark McLoughlin, EVP, Americas for VWR, part of Avantor. “We are very pleased to recognize Stirling Ultracold for the products and service they provide to our customers.”

Read our Press Release Announcement >>

Our Undercounter ULT Freezer: Convenient, Compliant Personal Storage

When you don’t have enough room for a full-size ULT freezer in your lab or clinical space, Stirling Ultracold offers a smaller version of our upright freezer with the same award-winning Stirling engine technology: our SU105UE (105) undercounter ULT freezer. The 105 is a personal and lockable ULT freezer that is ideal for placing under or near your bench in the lab. This stackable model uses the revolutionary free-piston Stirling engine technology found in our SU780XLE Upright Freezer, offering a highly reliable ULT storage solution with only two moving parts, no oil and no compressors. We’ve packed convenience and reliability into one ULT freezer.

Undercounter Convenience and Space Savings- The light-weight (220 lbs./99 kg) SU105UE model is the right size for positioning under your workbench or nearby, with a surprising amount of storage space. It holds 72 two-inch boxes, making the most of its compact footprint. The quiet Stirling engine puts out much less heat than compressor-based models, providing a mixture of convenience and comfort to your work space. These benefits paired with quick and easy access allow you more time to focus on your research.

Stackable Flexibility- The SU105UE is stackable with full access to samples in an over / under configuration. This is particularly useful for placing ULT storage in labs with limited floor space, and for “staging” sample temperatures. With the widest temperature range in its class, the 105 can store biological materials from -86˚C up to -20˚C. This is ideal for clinical samples and biological drugs that must be warmed to a specific temperature in stages.

 

A “Temperature Stack” Case Study –

One example of the SU105UE’s stackable flexibility can be found at a research lab in Western Pennsylvania, where the team is taking advantage of the 105’s stackability, as well as its uniquely wide temperature range. This lab is working with a biologic drug that must be transitioned from  -80˚C to room temperature in two stages. With the range of -86˚C up to -20˚C, one of the freezers in the stack is used for the intermediate stage of the transition. Placing 105s in a stack offers a unique level of convenience and space-savings in this situation, with the flexibility to use the same freezer model at dissimilar temperatures ranges. This research team has seen improved efficiency and accuracy in the transition of these biologic materials to room temperature, while conserving precious floor space in their lab.

Secure Personalized Storage – The SU105UE model is the perfect size for personalized ULT storage. It gives you the freedom and control to organize your samples in a way that makes the most sense to you and your research. The 105 is also lockable to keep samples secure. Having a smaller lockable chamber is ideal for clinical use, where HIPAA patient privacy and access compliance standards are involved.

All the Advantages of Stirling Engine Technology – Like all of Stirling Ultracold freezers, the SU105UE can plug into any outlet worldwide, including 120V – 240V 50/60 hz. Consuming less than 4 kWh/day at -80°C, it saves energy and is environmentally friendly with 100% natural refrigerants. Because the 105’s advanced Stirling engine cooling system is inherently reliable, it comes with an industry-leading warranty that includes 7 years engine protection, with 2 years and labor cover parts coverage in the U.S. and Canada.

The SU105UE provides the perfect blend of safety, security and flexibility for your lab which will allow you to be more productive than ever.

ULT Technology That Advances Both Energy-Efficiency and System Reliability

Perhaps you’re aware of the free-piston Stirling engine that allows Stirling Ultracold ultra-low temperature (ULT) freezers to use less than a third the energy of legacy, compressor-based models. You may also know that this enabling technology, not only saves energy and associated operating costs, but uses 100% natural refrigerants that substantially reduce ozone-depleting and greenhouse gas emissions. However, you may not realize that the Stirling engine also advances the safety of biological samples with its inherent reliability advantages.

From the outset, Stirling Ultracold has believed that sustainable, energy-efficient ULT technology would present a very compelling choice for the research community, and we are pleased to see the recent efforts of some compressor-based ULT manufacturers to improve the efficiency of their cascade technologies.

However, it should be noted that energy efficiency was never our sole reason for bringing Stirling engine technology to laboratory cold storage. Improvements in ULT efficiency and sustainability, while important on their own merits, should always support or enhance the reliability of cooling systems that preserve valuable samples for research. The inherent reliability of the Stirling engine, while less understood, is vitally needed in our industry to further the safe preservation of biological specimens.

This innovation delivers several reliability advantages that address well-known failures associated with aging technologies used in most ULT freezers. To understand this, let’s first look at the basic differences between cascade-compressor and Stirling engine systems . . .

Unlike “cascade systems” with two compressors and cooling loops in a cascading arrangement, the Stirling engine uses a single reciprocating piston and a continuous, gravity driven thermosiphon to cool the cabinet interior. In contrast to standard cascade systems that regulate temperatures by switching compressors on and off, the Stirling engine’s linear motor system continuously modulates and adapts by controlling the motion of the free piston.

How Does the Stirling Engine Improve ULT System Reliability?
Below are several key design attributes and innovations that extend the operating life of the Stirling engine and address the common reasons why conventional ULT systems fail . . .

  • The advanced integral linear motor system has only two moving parts.
  • The moving parts never wear because gas bearings eliminate physical contact (friction) during motion
  • There is no oil to clog up the system or lubrication levels to maintain.
  • There are no valves to fail or maintain
  • 100% adaptive, continuous modulation regulates temperatures without stop-start cycles.
  • Electromechanical stress and amperage peaks from on-off surge currents have been eliminated.
  • Minimal preventive maintenance is required for reliable cooling operation.

If you would like a more in-depth understanding of how advanced ULT technology can reduce your energy consumption, while also improving reliability and sample safety, please sign up to attend our Freezer Challenge Webinar, presented by Stirling Ultracold’s Director of Quality, Chuck Stout on Thursday, April 6th at 1 pm.