Click here to see more featured refurbished lab equipment from American Instrument Exchange.

American Instrument Exchange is the preferred supplier for used and refurbished equipment to customers worldwide in a variety of industries, including major pharmaceutical companies, rock-star biotech startups, major breweries and microbreweries, cannabis startups, academic labs, and more. In addition to the global network of customers we have built over the past five decades a significant portion of our business is still centered in and around the biotech cluster in Cambridge and Boston that we call home. Below are some featured products that have recently arrived in stock.

4E’s USA 24L water bath – brand new!

4E’s USA Digital Electronic Lab Water Bath features a stainless steel basin and glass touch panel controls; adjustable temperature range up to 99.9°C; three programable temperature setpoint buttons; and built-in timer. Lid and bath base included for optimal performance. This unit is brand new and includes a manufacturer’s warranty! Click here for pictures, a video, and more specifications.

Beckman Avanti J-E centrifuge

The J-E centrifuge accommodates the comprehensive J-Series line of standard and biosafe certified rotors and labware for sample sizes from just a few microliters up-to 4 liters. It generates maximum speeds up to 21,000 RPM (53,300 x g) and offers the capacity of processing up-to 4 liters in under 10 minutes. The J-E’s high torque switched reluctance (SR) direct drive achieves faster acceleration and deceleration with gentle precision that delivers the fastest separations in the shortest run times, performance unattainable by standard high-speed centrifuges. Using CFC-free refrigerants and a maintenance-free vacuum pump to partially remove friction-generating air molecules, the J-E offers better temperature control (-10° C – +40° C in 1° C increments), a more energy efficient system, lower heat output (< 6,900 BTUs) and quieter operation for a comfortable, productive work environment. Click here for pictures, a video, and more specifications.

Chemglass 2L Jacketed Process Reactor with Digital Overhead Stirrer

The Chemglass 2L Process Reactor is a complete reactor system on the Chemglass open air stand. Jacketed reaction vessel with graduation scale on both sides. Inlet/outlet has a tool-free flat flange connector. No Tools Are Necessary to attach hose fittings to the inlet and outlet of the jacket. A low temperature plug and control knob, designated by a blue indicator band can be used down to -60° C. Valves are designed to seal flush with the bottom of the flask avoiding the dead space normally associated with stopcock drains. This feature permits total mixing and draining of the contents of the reactor. The 2L vessel is coupled with a five-neck lid with two vertical side necks and two that have a 10° degree angle. The lid has a flat ground surface allowing it to be greased or used with an o-ring. Inside the vessel is a one-piece agitator, with a body that is made entirely from one piece of class VI virgin PTFE. The smooth machined surface has no seams, joints or crevices for material to collect. The design provides excellent stirring, especially when heavy slurries are being mixed. Stirring power to the agitator is channeled through a dry running mechanical seal that rotates with the shaft, providing for a vacuum and pressure tight seal; maximum vacuum rating is 5 Torr, maximum pressure is 2-3 PSI. Unlike conventional PTFE Bearings, bearing will not “flake” contaminating your reaction. All seals are made using perfluorinated O-rings providing outstanding resistance to the most aggressive chemicals. Bearing seals are rated at up to 2000 RPM. The design allows you to have the flexibility of vertical adjustment and still choose your agitator diameter and style. Bearing has a ferrule and locking nut to ensure that the seal rotates properly. Click here for pictures, a video, and more specifications.

Caron Products 7404 series GelJacket CO2 incubator with CRSY 102-1 condensate recirculating system

Caron’s GelJacket is a high-volume, controlled humidity CO2 incubator that replaces conventional water jacketed units as the benchmark for critical culture protection. GelJacket offers precise gVapor controlled humidification, as well as a rapid 90° decon cycle for fast chamber cleaning. These standard features save energy and user time, as opposed to contamination-prone water pan-based systems and high temperature or complicated competing decontamination processes. Caron’s proprietary thermal gel insulation provides power outage temperature protection equivalent to water, with minimal maintenance, and at a fraction of the weight. Leaks and regular jacket fillings are now a thing of the past. By filtering both stored tap or instrument-grade water and unit drain water, the CRSY system allows you to locate humidified chambers where they’re needed. It produces Type II equipment-grade water, and has a 7-gallon storage tank capacity. The dual filtration process will help avoid expensive whole-lab water systems, bottled purified water, and retrofitted floor drains. Closed-loop recirculation also eliminates constantly sending wastewater down the drain. Click here for more details.

Tuttnauer 3870E tabletop autoclave

The Tuttnauer 3870E – B/L autoclave is designed as a gravity displacement system for the sterilization of wrapped and unwrapped instruments and related items found in dental, medical and veterinary clinics, first aid rooms, hospitals, laboratories, etc. This autoclave is an electrically heated sterilizer using steam as the sterilizing agent. A computerized control unit ensuring a fully automatic sterilization cycle, control and monitoring of physical parameters and a clear documentation of the sterilization cycle controls the autoclave. The 3870– B/L has three automatic programs, according to the material to be sterilized, and one auxiliary drying program. A water pump is installed between the water reservoir and the chamber. This pump guarantees fast and accurate filling of the chamber every time. Entry of water may be accompanied by a noise for approximately 30 seconds. This is normal noise generated by regular operation of the pump. The control system provides adequate protection to ensure the safety of personnel and reliable operation with a minimum of shutdown time. Click here for pictures, a video, and more specifications.

Thermo Forma 3940 refrigerated environmental chamber

Thermo Forma Reach-in refrigerated incubator chambers are perfect for applications that require temperature control below and/or above ambient, e.g. storage, testing, and incubation at low temperatures. The refrigerated incubator chambers meet International Conference on Harmonization (ICH) guidelines for drug substance and product storage testing. The units are ideal for drug stability studies, shelf-life testing for packaged products, insect and other large-scale biological research. These chambers feature a 0°C to 60°C (32°F to 140°F) temperature range that can be set in 0.1°C increments. The broad temperature range, and optimum temperature uniformity and recovery contribute to an ideal test environment, even when the chamber contains large product loads and low-output, heat-generating equipment. They also feature a humidity control system, which allow you to set the RH level between ambient and 95% in 1% increments. The humidity system requires a water purity in the resistance range of 50K to 1M Ohm/cm, or a conductivity range of 20.0 to 1.0 uS/cm. The water source can be either pressurized (up to 40PSI) or unpressurized. If an in-house water supply of the required purity range is not available, an alternate method can be used.  A large, vended carboy (5 gal. minimum) of water in the required purity range can be placed on top of the unit. This combination directs air across the surface of each solid shelf. Even when filled with samples or equipment, each shelf receives a consistent flow of conditioned air for optimum temperature uniformity and recovery. As opposed to a horizontal airflow system, top-to-bottom (non-directed) airflow systems use a top-mounted fan to push air down through wire shelves. Temperature uniformity and recovery can deteriorate quickly when shelves are filled because air movement is blocked. That variation in temperature, alone or when combined with frequent door openings, may compromise environmental conditions, or make process validation difficult. Click here for more details.

Thermo Sorvall ST 16 benchtop centrifuge

The Thermo ST 16 is a great option for general lab centrifugation and can be used for a range of routine applications and sample processing, including clinical protocols, cell culture applications, microplate processing, and a variety of separation needs. Compatible with a wide variety of rotors, the Thermo ST 16 presents users with many different configuration options. (Rotors sold separately; call for availability.) Six program keys allow users to enter their most frequently used programs for single keystroke access to the programs they use on a daily basis. The Thermo Sorvall ST 16 comes with Thermo’s Auto-Lock III rotor system makes changing rotors a cinch – push one button, and you can change your rotor and process parameters without the need for any tools. Additionally, the SMARTSpin rotor management system maximizes safety and separation by optimizing acceleration, braking, and residual load imbalance for any rotor/bucket option. Click here for more details.

Zymark TurboVap LV

Want to know why the Zymark TurboVap LV is awesome? Let’s start with the vortex evaporation system, a patented gas vortex shearing process that increases the speed of evaporation up to ten times compared with other evaporation techniques. A water bath gives the chamber an even temperature distribution while a gas flow is delivered over a set period of time. (Nitrogen is recommended, depending on the application, or oil free compressed air if nitrogen is not suitable/available. See operator’s manual for more detail.) The Zymark TurboVap LV is ideal for sample volumes of 1 mL to 30 mL and can accommodate standard test tubes, conical bottom tubes, GC vials, and microfuge tubes, depending on the rack. (Call or email for availability.) Key applications include forensic and clinical chemistry, food and pharmaceutical laboratories for concentration of solvents following SPE cleanup of drug samples or pesticide extracts, among others. Typical solvents include acetonitrile, ethylacetate, hexane, menthanol, dichloromenthane. Click here for more details.

American Instrument Exchange has been a reliable source for used laboratory and scientific equipment for over 50 years, buying and selling equipment since 1969. Our surplus lab equipment is reconditioned for many types of laboratories, including biotech, biomedical, medical research, chemical, pharmaceutical, and university and hospital research laboratories. All lab equipment listed on our website is in stock and ships from our 30,000 square foot warehouse in Massachusetts. Our facilities include a fully equipped shop with highly trained technicians who thoroughly test each instrument before it reaches your laboratory. Please visit our website at https://www.americaninstrument.com/.