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Basics of Centrifuge Rotor Inspections & Maintenance by Martin Felder

Posted on by Vero T.

We’ve recently had the pleasure of sitting down with Tritech’s own, Martin Felder. Martin has been an engineer with Tritech since 1990 and is considered an expert in all things centrifuge.

We sat down with Martin so he could give us the same advice he gives to his customers when it comes to centrifuge rotor maintenance.


Product Overview of Labnet’s Spectrafuge 24D Microcentrifuge

Yesterday we demonstrated Hanil’s popular Smart 15 microcentrifuge with an video overview found here.

Today, we will be demonstrating a favorite of ours, the Labnet Spectrafuge 24D microcentrifuge.

Why we like the Spectrafuge 24D:

  • Very compact — it’s about the size of a sheet of printer paper
  • Lightweight — less than 20 lbs.
  • Inexpensive when compared to similar units
  • Very quiet — smooth operation with no vibrations
  • It includes a rotor! 24 x 1.5/2.0mL capacity

For more information on the Spectrafuge 24D microcentrifuge, click here to view the product page.


Overview of Hanil’s New Smart 15 Microcentrifuge

Many of you may know that Tritech is the exclusive distributor of Hanil life science instruments in North America.

We decided to create a video to introduce you to their most popular microcentrifuge, the Smart 15.


New Arrival: Hanil/Biotron Smart GX Fermentor

Posted on by Vero T.

The new equipment has been rushing into Tritech’s shop faster than we expected and we’re excited to start playing with each unit. We’ve recently received a wonderful new fermentor from Hanil/Biotron which seems to continue Hanil’s methodology of building intuitive and extremely well made machines.

What is really unique about the Smart GX is the added ability to control the unit through an iPad application through WiFi! Not only are you able to monitor experiments through your iPad, but experiments can be controlled remotely from just about anywhere in the world. This is technically a world first so it would seem appropriate that we are quite excited to show-off this unit to the everyone.

This fermentor is also loaded with features typically seen on units costing twice as much.

  • Programmable multi-stage settings? Check.
  • Sensors for temperature, pH level, DO level, and foam sensors? Check.
  • Four peristaltic pumps for acid, base, feed, and foam? Check.
  • WiFi with iPad control? Check.

What’s more, the Smart GX is scalable to up to 8 units to create a unified multi-fermentor/bioreactor system.

For more information on the Smart GX fermentor or any of our other lab-scale fermentors, please contact us at 1-888-886-7004.


New Arrival: Biotron SP Fermentor (Pilot Scale)

Posted on by Mark

This past week, Tritech’s Mark Circo and Vero Tabares attended the SIMB 2012 (Conference for the Society of Industrial Microbiology) to assist Jeremy Choi of Biotron/Hanil promote their new line of fermentors. After the show, we were delighted to discover that the demo units shipped all the from South Korea to Washington DC for the conference would be returning to the Tritech shop instead.

The model we received is a medium sized, pilot scale fermentor that is beautifully built with seriously high quality parts. Every nut and bolt appears to have been meticulously tightened and polished by an expert engineer.

This unit will be used to train and demonstrate the capabilities and quality of the Biotron line of Fermentors which are available in just about every size imaginable, from a small table top unit or plant-sized scale.


The Asset Management Model (w/ a twist of humor)

Posted on by Mark

Why Managed Maintenance is the HMO of Laboratory Instrumentation Repair and Maintenance

Posted on by Mark

Our industry has undergone some dramatic changes in the past few years. Managed maintenance developed as a way for universities and large laboratories to save money on the annual maintenance of their laboratory equipment. While this is an admirable goal and one that resonates with us all in these times of increasing costs and decreasing budgets, it has some of the same design flaws as the HMO model for health care.

Managed maintenance companies (MMCs) usually fall into two categories. Company A claims it has the technical knowledge to save clients “excessive charges.” An account manager is assigned to oversee the institution’s equipment maintenance program and to act as a liaison between the researcher and the maintenance contractor. Company B assigns technicians to the account full-time. They perform front-line maintenance and work closely with the service providers.

Company A markets its service to the institution’s decision-maker, who is persuaded by the argument that last year’s costs can be cut by 20%. Company A’s fee comes from what it can retain from the remaining 80%. Purchasing receives the directive to “make this work.” Researchers are told that “nothing will change” and that they can call any service company they choose when they need instruments serviced. Preventive maintenance will be carried out just the same as usual, only now it will be a time and material call. This is where the plan falls apart.

Now the researcher is responsible for tracking each piece of equipment’s preventive maintenance contract (PMC) schedule and then scheduling visits as appropriate. With the breadth of instrumentation in use in today’s laboratories, this is no small task. This is not the researcher’s primary responsibility and most researchers feel saddled with a maintenance administrative issue that they do not have the time or tools to handle.

Is it in the best interest of the asset management company to make sure that PMCs are completed? Of course not—the fewer service calls placed, the more money the management company makes.

Unintended consequence no. 1. Because they are not being regularly maintained, instruments become unreliable. After one or two years of this, depending on the age and type of equipment, some sort of costly repair is needed. The management company recommends replacing the unit rather than repairing it. The cost of this new equipment comes out of the capital equipment budget and there is now one less instrument to draw against the maintenance fund. The excess funds go right to the bottom line of the management company’s P&L. Because a new instrument usually comes with a one-year warranty, it does not appear in the maintenance budget for the next year. It looks like maintenance costs are decreasing, on paper.

Unintended consequence no. 2. The quality of service provided diminishes. Both the independent service provider (ISO) and the original equipment manufacturer (OEM) employ a staff of service personnel large enough to handle their contract base plus about 20%. No service company can afford to keep service personnel on hand just in case they are asked to perform a time and material call for an institution with which they do not have a long-term relationship.

A service provider stocks the parts and manpower to keep contract customers’ equipment in optimum condition on an as-needed basis. The primary responsibility is to those clients who commit for at least one year and pay in advance. In return, the service provider ensures they receive properly scheduled PMCs, quick response time, quality work, and a budgeted maintenance charge that does not result in hidden capital equipment replacement costs.

That is the downside of Company A’s customer “savings.” As for Company B, it provides a slightly different approach to managed maintenance with on-site technical staff to manage the account. The company also forms relationships with ISOs and OEMs prior to contracting with an institution that should ask to see those written agreements before signing on the dotted line. On-site technicians generally have a good understanding of what it takes to maintain the equipment. They schedule and track PMs for the researchers and maintain good relationships with the contractors by not second-guessing the parts they provide and by paying their bills on time. This method of managed maintenance can work if it is implemented properly.

But the devil is in the details. Most ISOs offer service agreements that are an excellent value. Over a several-year period, they should save the institution money. A managed maintenance company that is doing its job properly will look at each contract individually and make a decision whether to keep it or not.

The first year with an MMC should go just fine. But managed maintenance makes its money from the service not provided and the calls not made. After about a year, instruments begin to experience more problems and more costly repairs. This poor performance is blamed on the age of the equipment or the shoddy job done by the service provider. This author is aware of a few instances in which an unprincipled MMC pillaged a budget, disappeared after 2–3 years, and then started up again under a new name selling the same old shell game.

This happened to the author’s company, which had to refund all the monies paid to it by the MMC during the past 90 days so that the bankruptcy judge could redistribute it as he saw fit. The company provided quality work done correctly at a major teaching institution. Because the institution had paid its bill to the MMC, it was not possible to go back to it for reimbursement. The MMC was in bankruptcy—no recourse there. The author’s company was out the money for parts and labor.

The piece missing from both MMC service models is the technician with in-depth knowledge and ready access to parts when the repair requires more than a simple reset or fuse change. The biggest problem in these modes of service is the long-term effect on the actual service providers, whether they are ISOs or OEMs. Destabilizing the workload causes talented service personnel to find work in another, more consistent market segment such as homeland security or process instrumentation. It is just bad business for an ISO or OEM to stock parts for equipment they are not under contract to service. In the end, an experienced technician must be there to turn the screwdriver and replace the part. Otherwise, not much shine will be left on that 20% savings from the first-year maintenance contract, and the scarcity of parts and talent will ultimately drive the price of service through the roof.

Instruments that are maintained properly give the researcher many years of quality operation. Premature obsolescence is avoided and the capital equipment budget can be used to purchase new instrumentation that expands the laboratory’s capabilities. Institutions need to understand that proper equipment maintenance cannot be shortchanged and that, in the end, it is less expensive and more time efficient to manage their service needs independently and deal directly with the service providers.


Tritech acquired rights to distribute Hanil Science and Industrial products in the US.

Posted on by Mark

Tritech recently acquired the rights to distribute Hanil Science and Industrial products in the US and Canada. After signing the agreement I flew to Seoul Korea to visit the factory and meet the nice folks from Hanil. After a tour of the city of Seoul the next day we drove west to visit the new factory. It is a state of the art manufacturing facility in an area designated for Biotechnology. All parts for their instrumentation are made on site. The quality is top notch, world class. Tritech Will be introducing these products to the US market at Pittcon in March. Look for us at booth #3884.
Mark Circo
President / CEO
Tritech Inc.

 


How many revolutions are on that centrifuge?

Posted on by Mark

Customers purchasing a used centrifuge often ask the question,
“How many revolutions are on that centrifuge?”

The number of revolutions on the counter is an overall number of how much usage the entire centrifuge was used as a system. (Maybe)
The revolution counter is an electromechanical device that can fail and require replacement. This renders the overall counter number useless for assessing the total usage on the instrument.

Within that centrifuge are sub assemblies, such as the drive assembly, vacuum pumps refrigeration compressors. Each drive has a serial number, on a L8, L8M or Optima this could have been changed any number times, or it could be the original drive from the factory. Typically, there is a service card inside the instrument that the service engineer uses to log these drive changes as well as the revolutions on the counter at the time of a drive change. This is a much more accurate representation of the usage on the drive in the instrument. A seller should give you this information. The original log book is another source of useful information. These log books show how long the runs were and what type of rotors were used. The seller should provide this information for you if it is available. These questions are important if you are relying on the past usage an indicator of reliability. They are not important if the instrument has been rebuilt to original equipment standards, or truly is refurbished.

There are two refrigeration compressors in an L8 or L8M, (one for drive cooling and one for can cooling). These assemblies could also have been changed at any point in time.
To make a judgment or even a guess on how long this should last without putting gauges on the compressors and measuring its performance characteristics is just not possible.

The vacuum system consists of a mechanical rough pump and a diffusion pump.
The main vacuum pump is a mechanical device that has been manufactured with tight tolerances and requires periodic maintenance to continue working reliably.
Without seeing the service history no one can tell how long you can expect this unit to last. One tube leak during a sucrose gradient run that is not cleaned and flushed immediately will cause the pump to fail prematurely.
This is why Tritech always rebuilds our centrifuges before selling them. That is why we can offer a one year onsite warranty. There are plenty of instrument brokers that will sell you an instrument at a very low price. Make no mistake it is a gamble, you may win or you may loose, but you are gambling just the same. You should ask these questions of any company you are considering buying an instrument from?

Tritech is a service organization first and foremost. We know these instruments inside and out. We will be there long after the sale.

The Tritech purchase experience will make you a customer for life.


Why Tritech

Posted on by Vero T.

Tritech started as a lab equipment service company in 1987. We never intended to sell lab equipment, but clients valued our knowledge so much, they began asking us for recommendations on new purchases. Solving our customers expansion needs became a way we could deliver on our corporate mission  to help life science researchers meet their goals each and every day. It s been a valuable part of our service to our clients ever since..

President and CEO Mark Circo is our inspiration. As a Field Service Engineer and Account Specialist at Beckman Instruments in New York City and Long Island, and then later in Honolulu, Hawaii, he learned how invaluable equipment maintenance knowledge can be to the smooth running of a life science research lab. It was then that he had the vision to create a company committed to life science research equipment and only life science research equipment. So in 1987, Tritech was born and since then has maintained an incomparable reputation for excellence.

Our focus is our customers. We prioritize personal contact with all our clients to ensure their total satisfaction with our services to them. Our goal is to lead the industry  to be the best trained, most experienced, and most efficient lab instrumentation resource in the U.S. and to provide whatever equipment and services are necessary for lab researchers to reach their goals.

We pride ourselves in the fact that we recently received our ISO 9001:2008 certification. View Certificate of Registration.

Learn more about the Tritech Leadership team.


 
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