Centorr Vacuum Industries

About Us


Since 1954 CVI has introduced many industrial high temperature vacuum furnace solutions for production and R&D.  Centorr Vacuum Industries is a manufacturer of high temperature vacuum and controlled atmosphere furnaces with an installed base of over 6500 units worldwide

Request Quote

Centorr Vacuum Industries is a manufacturer of high temperature vacuum and controlled atmosphere furnaces with an installed base of over 6500 units worldwide. Our furnace offering ranges from large commercial and production units with hot zones over 3m x 3m, to smaller Laboratory and Research & Development furnaces for use at temperatures up to 3500°C.

While many of our furnaces are standard designs and sizes, we also offer custom-built equipment specialized to individual customer requirements.

Our Sales and Manufacturing offices are located in Nashua, NH USA and include a fully staffed Sales and Aftermarket Field Service group, and we operate an Applied Technology Center offering R&D support and toll firings services.

For more information please contact the sales department at 603-595-7233 or on the web using the form at right.

Company Profile & Technology

Centorr Vacuum Industries was incorporated upon the combination of two of the premier furnace companies in North America; Centorr Furnaces and  Vacuum Industries, both having long histories in the development and manufacture of thermal processing solutions. Centorr Furnaces was founded in 1962 and provided a wide range of controlled atmosphere, high vacuum/high temperature furnaces for the processing of metals and ceramics, with specific product expertise in fiber optic cable drawing and gas purification. Vacuum Industries was founded in 1954 and focused its efforts primarily on larger production-sized units for the debinding, sintering and densification of variety of metals and ceramics. Over the years, the company has developed expertise in furnaces for Metal Injection Molding, Powdered Metal processing, Heat treatment, Vacuum Induction systems for Carbon/Graphite systems, annealing, and brazing equipment.

Centorr Vacuum Industries was acquired by the LOI Group, GmbH in December 1992 making it a member of the largest furnace company in the world. Membership in this group gave Centorr Vacuum Industries unmatched resources for continuing its product development and acquiring technical knowledge on a global basis.

Centorr Vacuum Industries was subsequently acquired by its management team from the LOI Group in January 1997. This change in ownership represented the next step in Centorr Vacuum Industries strategy to better meet its customers' needs. The managements' new role as owners and managers has provided for greater flexibility and motivation in creating and maintaining satisfied customers. Centorr Vacuum Industries is based in Nashua, New Hampshire, approximately 1 hr from Boston, MA.

TECHNICAL LEADERSHIP: Centorr Vacuum Industries has achieved its position of technical leadership in this field by delivering innovative solutions to challenging high temperature materials processing problems. Standard vacuum processing furnaces for induction melting with precision casting capabilities, high temperature sintering, hot pressing for powder compaction or diffusion bonding, heat treating, precision brazing, thermal treatment, and chemical vapor deposition are augmented by specialized, custom-designed furnaces to accommodate new techniques for manufacturing advanced ceramics, processing injection-molded metal and ceramic powder components, and processing a wide range of metal and ceramic materials at various stages during conversion from raw material to finished product.

FACILITIES: Centorr Vacuum Industries' manufacturing facilities have been repeatedly expanded and now include a group of integrated shops staffed and equipped for machining, metal forming, fabricating, electro-mechanical assembling, and operational testing of complete furnace and related processing systems. In addition to the 40,000 SF (3700 m2) main building, they recently added a 40'W x 40'L x 55'H (12m x12m x17m) high-bay tower facility with 5 ton (4500kgs) hook and crane for large scale furnace projects. A 10'x10'x10' (3mx3mx3m) pit in the main facility also allows for two story equipment simulation. With 800 amp available service and 350 KVA chilled glycol system, Centorr Vacuum Industries can design and build large custom vertical and horizontal furnace designs in-house, and can access to up to 2MW of additional electrical power when required.

APPLIED TECHNOLOGY CENTER: In addition to maintaining its leadership position in the Advanced Ceramics and Particulate Material Markets, Centorr Vacuum Industries focuses on expanding its market by placing a greater emphasis on its Advanced Technology Center. The Advanced Technology Center is a fully equipped and staffed laboratory that performs high temperature firing of customer's parts to help with process development or troubleshooting. The lab is equipped with four high-temperature furnace configurations, and various metallographic support equipment to permit analysis and evaluation of a client's process requirements.

Process evaluation is an important aspect of customer service, enabling prospective users of high temperature equipment to test ideas and perfect operating procedures so that equipment can be properly specified to perform planned operations. The results of which are seen in our patent history. The laboratory is also available for toll processing of customer's parts while they are waiting for their furnace order to be completed.


Market Achievements/Process Offering

Centorr Vacuum Industries' leading position has been achieved through high quality engineering and manufacturing to reinforce experienced product management for the application fields served. Centorr Vacuum Industries has introduced many furnace solutions over the years. which have included:

Retort Furnace, In-Situ Cooling
Arc Melting Furnace
Induction Melting Furnace
Vacuum Hot Press
Hi-Temp. CVD Resistance Furnaces
Annealing titanium
Nuclear reactor fuel alloys
Nuclear reactor fuel alloys
Ceramics composite research
Pyrographite deposition
10 Meter Long Furnace with vacuum cooling chamber
 Semicontinuous Carousel Furnace with load lock
Annealing Titanium
Sintering tungsten carbide
First Multipurpose Vacuum Furnace
SYSTEM VII Physical Test Furnace
Gen. Purpose - heat treat, melt, weld, braze
 Physical test of materials in controlled atmosphere and temperature
Resistance Cold Wall Furnaces with gas quench
Production vacuum heat treating
Crystal Growth Furnace
Adjustable gradient furnace
Immersion Platen Diffusion Bonding Press
Aircraft components
Fiber Draw
Fiber optic drawing furnace
30 Meter Long Horizontal Furnace
Thermal treatment - Inconel tubing
Vacuum Induction Melt Semi-continuous
Equiax and directional solidification for investment casting
Vacuum Sintering Furnace
Belt Furnace
PM tool steels
Continuous operation above 1200°C
Pressure Sintering Furnace
Carbides & ceramics
Production CVD Furnaces
Advanced ceramics
Injectavac™ Sintering Furnace
Diffusion Bonding Hot Press
PM injection-molded components
Pour ram 42x42, 250 Ton-Turbine Blades
Rotary furnace for refining powders
Testorr™ Materials Testing Furnace
Materials mechanical testing
Injectavac II™
500 kg. P/M parts - brazing
Transparent Furnace Introduction
See-through furnace
Tungsten Mesh Belt Furnace
Patent Awarded
High Pressure/Temperature with Dilitometer
Controlled Atmosphere Sealing Furnace
Growth studies on high performance materials
lighting industry
High Capacity Graphitization Furnace
Continuous Debind/Sintering of non-oxide ceramics
in revolutionary design Pusher Furnace
2600°C - 8'x10', Turnkey Installation
Fiberdraw 11 B/E
Preform Consolidation
Higher capacity fiber drawing with improved process control
Glass consolidation for fiber drawing
High Capacity CVI for CFC
Fiberdraw for 80mm Preform
Continuous tantalum capacitor sintering furnace
Fiberdraw for low temperature applications
2750°C - 50" x 52"
Improved fiber quality and run length
Improved quality throughput
Metal Hot Zone MIM - Generation 1 design
Processing of high purity SS/Ti MIM
Large 2300°C/300Ton Vacuum Hot Press
Large 2300°C SiC Debind & Sinter design with high output thermal incinerator
2300°C processing of non-oxide ceramics
2300°C processing of large SiC parts
High Capacity 25 cu ft (0.73cm3) Tungsten Carbide Sinter Furnace
Uniformity of ±2.5°C
Large Scale Crystal Growth Furnace Design
Processing of delicate materials in high volumes
State-of-the-art CVD System for SiC/MTS
Intellution HMI/PLC Control Strategy furnace designs
New Liquid Injection Dosing system
Executed for batch and continuous
Vacuum Equipment for Nuclear Materials
Custom vertical and horizontal vacuum furnaces for proprietary applications
40' (12m) Hot Wall/Cold Wall Vacuum Furnaces for Tube Heat Treatment
Remote I/O Design Strategy
Difficult processing requirements
Minimizes furnace wiring and installation times
Commercialize 2nd Generation 'Modular' MIM furnace
Achieved ±0.5° uniformity with precision gas/vacuum control
Provides 5 Armor Furnaces for non-oxide ceramics to 4 different manufacturers
Sizes varied from2 cu ft. to 50 cu ft. with debind and sinter capability
Six 2900°C heat treat furnaces provide for Carbon/Graphite work
100 cu ft size with cold traps and fast cooling package
Introduce new low-cost LF-15 Furnace for R&D
Introduce new interchangeable hot zone Hot Press
2000°C capability in low/high vacuum
Used for metals and ceramics testing
90ft. (28m) Cold Wall Vacuum Furnace for Annealing
Large 140 cu ft size Graphite Sintering furnace
Large International Contract for China
For diesel particulate filtration market
2900°C Production size Bottom Load heat treat furnaces provided for Carbon/Graphite work
30" dia x 40" size with fast cooling package
Five (5) Ceramic Sintering Furnaces of various sizes for SiC sintering
CVI leads sales of equipment in Ceramics
90ft. (28m) Cold Wall Vacuum Furnace for Tube Annealing
Two (2) 600kgs Ceramic Sintering Furnaces for B4C Armor sintering
Large International Contract for Japan
CVI's proprietary gas system design is favored by Industry leaders.
Sapphire Annealing Market
Continued Growth in Ceramic Sintering
Multiple unit orders for Asia and USA
Larger size debind and sintering units sold
Introduced 2nd Generation Workhorse furnace line
Commercialized low cost HMI control system
Improved design with lower pricing
Based on Specview/Yokogwa Platform
Offered new 2BAR gas quench Heat Treat Lab unit
Commercialized low cost HMI control system
Developed units for AIN Substrate business
Sold to world leaders in Aviation Engine Market
Based on Specview/Yokogawa Platform
to support growsing LED market

Customer Base

Users of Centorr Vacuum Industries' furnace equipment include leading government and private research organizations, universities, and manufacturing firms engaged in processing existing materials for improved properties or developing entirely new types of materials. With over 6500 systems installed, Centorr Vacuum Industries has an established reputation for supplying advanced design high-temperature vacuum and controlled environment processing equipment which is expertly crafted and field-proven for dependable operation. We look forward to the opportunity to work with you and be of service on your vacuum furnace opportunity.


Meet the CVI Team


Chief Executive Officer
William J. Nareski

Bill Nareski is the Chief Executive Officer and controlling shareholder of Centorr Vacuum Industries. He brings a distinguished career which includes both operational management and corporate development positions. His direct line experience includes engineering, sales, marketing, and finance. Bill has also managed the successful U.S. market introduction of vacuum related equipment for Ulvac Ltd. and served as an electrical engineer for the Missile Systems Division of Raytheon. Bill has an M.B.A. from Harvard University and B.S. and M.S. degrees in Electrical Engineering from Rensselaer Polytechnic Institute.


Chief Operating Officer
Kevin M. Janisse

Kevin Janisse joined Centorr Vacuum Industries in 2018. He brings a diversified career set which includes Engineering, Project and Quality Management. Through the years he has gained a depth of experience in vendor relations, field service, and procedural development. He has been in the furnace industry for 29 years with experience in a full range of vacuum and atmosphere thermal processes.


Vice President - Engineering
Ernie Morin

Ernie joined Centorr Vacuum Industries in 2015 as Director of Engineering. Knowledgeable in a variety of high-temperature applications, he has worked in the vacuum furnace industry since 2009 and has experience in crystal growth, gas pressure sintering, and a variety of Ceramics and Metals processes. Ernie has a degree in Mechanical Engineering from the University of Massachusetts, Lowell, and an MBA from Plymouth State University. He is a member of the National Fire Protection Agency (NFPA).

Matt Paul, Operations Manager 

Manufacturing and Operations Manager
Matthew R. Paul

Matt has been with Centorr Vacuum Industries since 1992, having started as a clerk making blueprint copies of drawings.  Matt moved on as a mechanical design engineer, specializing in design work for the Aftermarket Sales group while also supporting new product designs. Matt has his AS from Nashua Community College in Computer-Aided Drafting and Design as well as an AS from NHTI in Mechanical Engineering Technology.  He is involved in every phase of vacuum furnace construction from initial design to final manufacturing and oversees the entire manufacturing process for Centorr Vacuum Industries.


Controller & Administration Manager
Kellie J. Daneau

Kellie has been with Centorr Vacuum Industries since 2002 and has a B.S. degree in Accounting/Finance from Southern New Hampshire University. Kellie worked in the human resource management industry for 13 years prior to joining Centorr and currently manages the Finance, Human Resources, and IT functions for the company. 

Brianna Kim-Levesque

Purchasing Manager
Brianna Kim-Levesque

Brianna started with Centorr Vacuum Industries in 2015 in the purchasing department, and in 2017 was promoted to Purchasing Manager. She has her BA in Business Management from University of Phoenix and her MBA from University of Phoenix. Brianna is responsible for the Purchasing department and oversees all facets of the ordering process for CVI.

Manager - Field Service
Neal Goddard

Neal has a degree in Mechanical Engineering from Leicester Polytechnical College in the UK and has been with Centorr Vacuum Industries since 1988 and has worked in the vacuum furnace industry for over 30 years. Neal currently manages the Field Service department and is responsible for a team of Field Service Engineers that perform vacuum furnace startups, retrofits and repairs, as well as in-house furnace testing, as well as overseeing customer preventative maintenance programs.


Aftermarket Sales - Centorr Line
Alan A. Fostier

Alan graduated from Franklin Pierce College in Rindge, New Hampshire and holds a degree in Public Administration. He started with the Aftermarket Services Department of Centorr Associates in 1987 and continued on with Centorr Vacuum Industries in 1990. Alan is responsible for Aftermarket sales and service for the Centorr product line.


Aftermarket Sales - Vacuum Industries Line
Daniel R. Demers

Dan has been with Centorr Vacuum Industries since 1984 and is a graduate of Bishop Brady. He handles Aftermarket Sales for the Vacuum Industries line of Production furnaces. Dan also manages the invoicing and scheduling for Centorr Vacuum Industries' Applied Technology Center Laboratory.


Market Manager - Laboratory/Fiber Optic Furnaces
John B. Lariviere

John has spent 25 years in Mechanical Engineering before transitioning to Technical Sales. He has a degree in Mechanical Engineering from NHTI and has worked in the High-Temperature Vacuum furnace industry since 1994. John is responsible for Laboratory furnaces for a variety of applications in Ceramic sintering, Optical Fiber Drawing, and Metals Processing industries, as well as CVI’s line of vacuum hot presses for powder compaction and diffusion bonding.


Market Manager - Ceramics/PM
Scott K. Robinson

Scott attended Alfred University's SUNY College of Ceramics with a degree in Ceramic Engineering. He has been with Centorr Vacuum Industries since 1999 and has worked in the furnace and refractories industry for over 20 years. He handles the Production sized batch and continuous furnaces for Ceramics, Hardmetals, Carbon, Graphites & Composites, Nuclear materials, as well Metals processes including Brazing, Annealing, Heat Treating, PM Sintering, and Metal Injection Molding. Scott is a member of the American Ceramic Society, Keramos, MPIF, APMI, and MIMA.

Vacuum Industries Inc, GCA, Centorr, VI Logos

In 1954, the vacuum furnace manufacturer Vacuum Industries, Inc. was founded in Somerville, MA. In 1960 the firm was sold to GCA Corporation of Boston, MA, and in 1991, VI merged with Centorr Furnaces, Suncook, NH into a new entity named Centorr Vacuum Industries, Inc., of Nashua, NH, forming one of the largest manufacturers of custom high-temperature vacuum and controlled atmosphere furnaces in North America.

If you have a Centorr Furnace, Vacuum Industries, or GCA Corp. equipment and would like information on Aftermarket spare parts or field service assistance with your current equipment, please contact us at:

[email protected] | (603) 595-7233

Thank you for visiting www.centorr.com

Made in the USA