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This section provides an overview for bore gauges as well as their applications and principles. Also, please take a look at the list of 16 bore gauge manufacturers and their company rankings. Here are the top-ranked bore gauge companies as of December, 2024: 1.Sree Precitech Instruments, 2.Dorsey Metrology International, 3.Flexbar Machine Corporation.
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A bore gauge timer is a timer used to start a three-phase AC motor with a bore gauge.
It is sometimes called a star-delta starter. When a motor is started from a complete standstill, a starting current of about 6 to 8 times the rated current is often generated.
This starting current causes instantaneous voltage drops and circuit breaker malfunctions, this can lead to equipment failure. Therefore, industrial equipment often uses star-delta starting to reduce the inrush current.
Star-delta starting is a method in which the motor is first connected with a star connection at motor startup and switched to a delta connection after a certain period. This reduces the starting current. The star-delta timer is a device that assists this switching of wiring.
Bore gauges are mainly used in large industrial equipment. The following are examples of applications for bore gauges:
The most common applications for bore gauges are pumps and fans, which typically use high-capacity motors. Star-Delta timers can limit the peak current when these machines start up, thus reducing the load on the motors. Efficient control during startup is especially important for pumps, which are used to move water or liquids.
Examples of large pumps are water supply pumps and pumps for boiler feed water. As for fans, this applies to air blowing fans for industrial burners, etc.
Compressors are used in air compressors and chillers. These machines often require high current at startup. Star-Delta timers limit the current peak at startup and reduce the load on the power supply.
Bore gauges help compressors run more efficiently and optimize power consumption.
A mixer is a machine used to mix different ingredients or materials uniformly. Mixers typically use high-capacity motors. Since these motors experience high current peaks when starting, star-delta timers are used to reduce the starting current.
Bore gauges are devices that measure the time required to transition from a star to a delta starting and output a contact signal. Star-delta starting is a starting method in which the wiring method of a 3-phase AC motor is changed in the middle of the motor.
Instead of a slight reduction in starting torque, the starting current is significantly reduced. The switch from star to delta wiring is often controlled by a timer. The system switches to delta wiring after a certain amount of time has elapsed from star wiring. Typical timers start with star wiring for a few seconds to a dozen seconds.
Although it is possible to control star-delta starting using a general-purpose timer, the bore gauge has advantages such as space saving and low power consumption. Some products use plug-in terminal blocks to simplify installation.
When selecting a bore gauge, the following factors should be considered:
The bore gauge must be compatible with the power supply voltage to be used. Typically, models are offered on the market that are compatible with major supply voltages, such as 200 VAC. It is important to select a bore gauge with the appropriate supply voltage.
Bore gauges are available with pin-type or plug-in terminals. Pin types include 8-pin and 11-pin products, with 8-pin being the most common. For the pin type, a matching base must be selected.
There are different types of mounting methods, such as surface mounting and embedded mounting. Selection should be made according to the mounting location.
Surface mounting is selected when applied to the inside of a control panel, and most products are DIN-rail mountable. When mounting on the panel surface, ensure to select backside mounting.
*Including some distributors, etc.
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Dorsey Metrology International, a Poughkeepsie, US-based company established in 1955, is a manufacturer of precision handheld and bench-top dimensional measurement instruments and a supplier of pertinent services. The company provides indicating devices, direct reading gages, large diameter gages, and optical comparators. It also offers calibration, contract manufacturing, engineering, and repair services. The products of the company are used as tools to do measurements. It has passed ISO/IEC 17025:2017 certification, indicating the competence of its laboratories.
The L.S. Starrett Company was founded in 1880 and is headquartered in Athol, Massachusetts. The company is a manufacturer of industrial, professional, and consumer measuring and cutting tools to customers globally. The company has three general product segments: precision hand tools, gage blocks, and surface plates. Precision hand tools include depth gages, micrometers, squares, and over 15 other types of handheld measuring tools. Gage block offerings include individual blocks, sets, and accessories.
Sunnen Products Company, founded in 1924, is an American manufacturer and supplier headquartered in St. Louis, Missouri, specializing in of high-precision and bore sizing machines, tools, and abrasives. Joe Sunnen, founder of the company, invented the first manual cylinder hone in 1928. Over the years, Sunnen has developed industrial honing machines, tools, and abrasives with bore sizing and finishing systems, lapping machines, deep hole drilling machines and tools, bore gaging and roller burnishing systems. These products find applications in various industries, such as honing solutions in the automotive sector, as well as a line of machines, tools, and abrasives for energy drilling.
Mitutoyo America Corporation was founded in Aurora, Illinois in 1963 by Mitutoyo Corporation of Japan as its American sales, marketing, and service subsidiary. The company provides parts service, manufacturing, and turnkey solutions for metrology equipment for aerospace, alternative energy, automotive, semiconductor, and other industries. The company’s product offerings include coordinate measuring machines, sensor systems, test equipment, and vision measuring equipment customized for customer needs. The company’s services include calibration and repair, installation, contract part programming, and training and education for operation as well as calibration.
Flexbar Machine Corporation, founded in 1965 and located in Islandia, New York, is a Manufacturer and distributor of metrology-grade replicas, casting materials, and precision measuring instruments. Its diverse range of products includes video and optical inspection devices, gages, borescopes, gage stands, and machine tool accessories. The company's products are used in quality control, metrology, and precision measurement applications across various industries. Flexbar's products cater to industries such as aerospace, automotive, medical, electronics, and other sectors where precise measurement and inspection are essential for maintaining product performance. The company also holds ISO 9001 certification.
Marposs S.p.A. is headquartered in Bentivoglio, Italy. The company serves industries such asa aerospace, semiconductors, machine tooling, and biomedical as a manufacturer and as a service provider. The company’s products vary by industry but include tools for gauging, profiling, and monitoring, as well as data management systems and machines for testing and automation. The company’s services include after sales service, customer training, original spare parts, retrofit and upgrade of existing machinery, and project management consulting services.
Baker Gauges India Private Limited, founded in Pune, Maharashtra, in 1972 is a manufacturer of Gauges and Precision Measuring Instruments. The company's product portfolio includes electronic gauges, customized gauging solutions, coordinate measuring machines, profile projectors and data acquisition & spc software. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and Construction. They also offer custom packaging, warehousing, customer and technical support and distribution services.
Omron Corporation, started in 1933 and headquartered in Kyoto, Japan, is a manufacturer of automation components, equipment, and systems, and it developed the first contactless proximity switch in 1960. It has four domains, including industrial automation, electronic components, healthcare, and social systems, and it provides products and services in around 120 countries and regions. Some of its products include microsensing devices, access control systems, industrial robots, surveillance cameras, and blood pressure monitors. In 1971, it developed the first online cash machine, and in 1972, it established Japan’s first welfare factory.
Acutec Machining Solutions, established in 2009, is a manufacturer and supplier of new and used industrial cutting tools and machinery headquartered in Punjab, India. The company’s product portfolio comprises circular saw blades, grinding machines, milling cutters, HOB sharpening machines, and bore gauges used in various industrial applications. It is equipped with testing tools and equipment allowing its in-house quality testing unit to check its range of products is checked on various quality assurance parameters.
Cross Company is a provider of precision measurement solutions that was established in 1954 and is headquartered in Minneapolis, Minnesota, USA. The company offers a wide range of precision measurement products, including hose and fitting equipment, automation equipment, mobile systems integration equipment, precision measurement equipment, and process equipment. Its products, such as digital micrometers, dial indicators, and laser trackers, are used by a number of industries, as diverse as manufacturing, aerospace, and medical industries. The company provides a range of services, including mobile systems integration, automation, calibration, hose and fitting, process and precision measurement services.
Mercury Tool & Gauge Ltd, founded in the UK in 1991, is a supplier of cutting tools and taps. The company offers a diverse array of cutting tools, including drills, end mills, reamers, inserts, and more, designed for precision cutting, machining, and material removal, and a wide selection of taps, including thread taps, thread mills, and special taps. It serves industries such as Aerospace, Oil, Pharmaceutical, Motor and Aerospace and Defense.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Sree Precitech Instruments |
11.8%
|
| 2 | Dorsey Metrology International |
9.7%
|
| 3 | Flexbar Machine Corporation |
9.7%
|
| 4 | Reid Supply |
8.6%
|
| 5 | Sunnen Products Company |
8.6%
|
| 6 | Marposs |
8.6%
|
| 7 | Starrett |
6.5%
|
| 8 | Omron |
6.5%
|
| 9 | Baker Gauges India Private Limited |
5.4%
|
| 10 | Acutec Machining Solutions |
4.3%
|
Derivation Method
The ranking is calculated based on the click share within the bore gauge page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
6 | 50.0% |
|
India
|
4 | 33.3% |
|
Italy
|
1 | 8.3% |
|
United Kingdom
|
1 | 8.3% |
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