Celebrating seventeen years of engineering and product excellence
Welcome to Greenwood Instruments, a supplier of Laboratory Digesters, Absorption Testers, Formation / Floc Analyzers and on-line measurement instrumentation designed to support product and process improvement.
Our instruments combine years of design evolution as well as enhancements due to recent advancements in technology. The features and options available on the instruments are a direct representation of customer based feedback, additional features can be integrated to YOUR specifications.
Each instrument may be ordered in a standard configuration with many different options or customized in both hardware and software to meet your needs, in many cases, at no additional charge. In short, our instruments are distinguished from the competition with durability, reliability and technical advancement due to our constant product improvements. Furthermore, our product support is unmatched with electrical and software engineering at the disposal of the customer.
Our products are summarized below and described in more detail in the links to the left. Please contact us for more information to discuss your instrument needs using the contact information at the bottom of this page or in the Contact Us page.
Our Lab Digesters are ASME certified , not merely "ASME compliant" and operated completely by a personal computer with an easy to navigate intuitive user interface. The ramp and soak times are quickly set, temperature control is tuned with Proportional Integral Derivative (PID) settings that may be automatically generated. The H-factor is automatically calculated and the cook may be terminated when a user defined H-factor is reached. Greenwood Instruments has resident engineering with over 35 years of engineering experience. Greenwood was the first to offer ASME certified vessels with easy on/off covers (since 2001), enhanced liquor mixing (since 2004), and PC control (since 2006). Greenwood will continue to offer industry "firsts" as we continue to offer our customers a higher level of technical value.
The Lab Digester is available in either a circulation or rotating type configuration.
Please click on the picture of the instrument for more information.
Our Formation / Floc Analyzer is also completely operated by a personal computer with a consice user interface and features an optional automatic feed mechanism for reel strip testing. As an industry "first", we use a fully digital scientific camera that eliminates image artifacts that are commonly found with analog camera and frame grabber based instruments. The analyzer has a fully integrated self regulating light source that adjusts to each basis weight. The instrument provides an industry standard Formation Index that correlates extremely well with visual rankings and responds to differences in formation with three times the sensitivity of competing units. The Formation Tester also provides a Floc and Void analysis in order to provide a detailed description of the sheet structure. Data and images may be stored and retrieved for later comparison and trending. A graphing function plots the Formation Index over time for a given grade of paper. Minimum, maximum and average statistics are also calculated for the grade.
Please send samples to the address below. Click on the picture of the instrument for more information.
Trade-in your old formation tester
The Laser On-line Formation Tester provides real-time Formation Index and detailed floc (void) analysis. A laser beam is used rather than a traditional focused lamp to avoid false formation signals caused by sheet flutter in the open draw. A NEMA 4 / IP 67 ruggedized computer controls the laser, processes the signal from the probe and calculates the Formation Index and floc analysis. Results of the analysis is displayed on the integrated TFT panel and provided to the network.
Please click on the image of the instrument for more information.
The Absorption Tester also offers industry "firsts", it is completely operated by a personal computer (eliminating tedious YES/NO menu system and data downloads of competing units) and features real-time graphing of the data as the test is conducted. Tests may be stored and later recalled for graphing and import to spreadsheet programs.
Please click on the picture of the instrument for more information and please play the demonstration video below.