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Criterion Machine Works

  • PittmanInd
  • 4 videos
  • 492 views
  • Last updated on May 10, 2012
Modular Boring, Adjustable Boring tools for CNC Machining.

Established in 1935, Criterion started as a job shop in Beverly Hills, CA, producing parts for the defense and movie industries. While doing job shop work, Criterion developed boring tool products that were useful to them and soon began offering boring systems to other manufacturers. The Criterion boring head quickly became popular and in 1955 we moved our operation to Costa Mesa where currently we produce all our precision modular boring systems.

When the market shifted to CNC (computer numerical controlled) machining centers, Criterion continued to offer the widest boring range possible with one boring head. As manufacturing technology continues to evolve, and higher speeds have become more critical, Criterion has kept pace with this evolution.

Criterion's CB Style Boring Heads Make the Transition SmootherAs manufacturing shifted to CNC, we did not want to limit the boring tool range as others had chosen. To meet the needs of CNC machining centers, we introduced our CB Style boring head. The CB series boring heads were designed with a larger mounting face to be compatible with the tool holders used on CNC machines. The larger mounting surface also gave a more rigid and stable connection for performing a boring operation. All the ranges and adjustability features of the various DBL models were maintained in the CB design.

Criterion's Exclusive Precision Boring System Revolutionizes the IndustryOne of the most difficult aspects of boring is attaining the correct RPM for the boring cutting tool. Boring heads are design to move off center so you can enlarge the ID of a hole. This movement creates an imbalance, usually requiring a slower RPM to ensure the bore can be produced.

Criterion's solution was to develop a unique balancing system for our 202 series of boring heads. The US patent office issued a patent for this innovative boring system and now, by looking up your bore size and selecting the correct components and settings, a 202 boring head made over 50 years ago can spin at 5,000 RPM. This was unheard of when the boring head was first made— but very achievable with Criterion today.

What is the value of a balanced boring head? First and foremost is increased productivity. Because the boring tool can now operate at its optimum speed, another benefit is improved boring tool life.

Today Criterion specializes in precision modular boring systems for CNC machining centers.
Their modular boring products help manufacturers improve boring productivity worldwide. Clearly, as the market has changed, this old dog has not only learned new tricks, but even came up with a few of their own. Contact Pittman Industrial today at 800.333.7290 to improve your boring operation and increase your bore tools' life.
Modular Boring, Adjustable Boring tools for CNC Machining.

Established in 1935, Criterion started as a job shop in Beverly Hills, CA, producing parts for the defense and movie industries. While doing job shop work, Criterion developed boring to...
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