Sigma Electronics Co., Ltd. developed the industry's first microcomputer-equipped field balancer in 1985. Since then, we have continuously strived to deliver "trusted highest quality" through our proprietary technology. In 1988, our field balancer incorporating a proprietary multivariate analysis method achieved high-precision measurement from low-speed rotation to the ultra-high-speed rotation range of 400,000 min⁻¹. Field balancers and balancing machines incorporating these technologies have been shipped worldwide and adopted across all industries.
(Showa 60)
Established a system design office and founded the company; developed the industry's first microcomputer-equipped balancer
Developed the field balancer "BC-4300" and began OEM supply
(Showa 61)
Established Sigma Electronics Co., Ltd. (capital: 3 million yen)
Developed the field balancer "Myself-1" and began OEM supply
(Showa 62)
Developed the field balancer "Balance Eye" and began OEM supply
Relocated headquarters to Uramishinden Industrial Park (current location) and increased capital to 5 million yen
(Showa 63)
Developed a field balancer with improved unbalance detection accuracy by introducing multivariate analysis methods
Exhibited field balancers "SB-8307" and "SB-8308" at Techno Fair '88 hosted by SME Agency; began sales
(Showa 64)
Began sales of the field balancer "SB-7001" for high-speed rotating machinery, housed in a trunk case
(Heisei 2)
Developed Japan's first tool balancer "SB-7200" in response to growing concerns about tool imbalance due to increased machine tool speeds
Developed and began sales of the vertical balancing machine "SB-5100"
(Heisei 3)
Began sales of the field balancer "SB-7200RH" for ultra-high-speed precision machinery up to 240,000 rpm
Joined the Japan Testing Machine Association (Dynamic Balancing Subcommittee)
(Heisei 4)
Co-developed the precision machine tool balancing machine "SHV-6100" with Toshiba Machine
Began sales of the field balancer "SB-7002" with significantly improved measurement accuracy
Exhibited horizontal balancing machine "SHB Series" and "SB-7002" at the 16th JIMTOF
(Heisei 5)
Began sales of the precision grinder-specific field balancer "SB-8001"
Began sales and OEM supply of the general rotor field balancer "SB-8002" to Akashi Co., Ltd.
(Heisei 6)
Successfully developed the balancing machine "SHVA" capable of automatically performing balance measurement through correction in a single on-machine setup
Exhibited the fully automatic balancing machine "SHVA-6100" at the 17th JIMTOF (Osaka), attracting attention from the balancing machine and pump industries. The first unit was delivered to pump manufacturer H
(Heisei 7)
Developed the ultra-lightweight workpiece vertical balancing machine "SSV-51001" and delivered to automotive parts manufacturer
(Heisei 8)
Exhibited fully automatic balancing machines "SHVA-6100" and "SB-MELT" at the 18th JIMTOF
(Heisei 9)
Opened Kanagawa branch office
(Heisei 10)
Delivered the fully automatic balancing machine "SHVA-6110" with surface waviness correction (MAX 2mm) and chip collection mechanism to pump manufacturer K
Exhibited fully automatic balancing machines "SHVA-6110" and "SSV-51001" at the 19th JIMTOF
(Heisei 12)
Exhibited the polygon mirror balancing machine "SSV2-58000" at the 18th Motor Technology Exhibition; delivered to motor manufacturer
Developed a system for balance correction of turbo molecular pumps at actual rotation speed; delivered to turbo molecular pump manufacturer
Exhibited the field balancer "SB-7300" capable of measuring up to 400,000 rpm at the 20th JIMTOF
(Heisei 14)
Developed Japan's first multi-speed, multi-plane field balancer "SB-7700R" capable of suppressing unbalance vibration across all operating rotation ranges, responding to higher-order bending vibration modes of rotating machinery
Exhibited the newly developed multi-speed, multi-plane field balancer "SB-7700R" at the 21st JIMTOF
(Heisei 15)
Began sales of Japan's first multi-speed, multi-plane field balancer "SB-7700R"
(Heisei 16)
The "SB-7700" was certified as "Okayama - Our Company's Technology" by Okayama Prefecture for its outstanding technology
Exhibited "SB-7700R," "SB-8800R," and balancing machine "SSV2-5100" at the 22nd JIMTOF
(Heisei 17)
Began sales of "SB-7004R" and "SB-7400R" as successors to the "SB-7003"
New headquarters building completed
(Heisei 18)
Received the Technology Award from JSPE Chugoku-Shikoku Branch for the "SB-7700R" contribution to improving machine tool machining accuracy
Exhibited "SSV-5100A," "SSB-6100A," and various field balancers at the 23rd JIMTOF
(Heisei 19)
Released "SB-7701R," "SB-7704R," and "SB-7704RH" with improved computation speed for the SB-7700 series
Obtained ISO 9001 certification. Registration number: JQA-QMA13358
(Heisei 20)
Exhibited the fully automatic balancing machine "SHVA-6130A" and the industry's first field balancer "SB-7704R" capable of suppressing 3D vibration across all operating ranges at the 24th JIMTOF
(Heisei 21)
Selected as one of the "300 Energetic Manufacturing SMEs Nationwide" by the Ministry of Economy, Trade and Industry
Delivered the impeller fully automatic balancing machine "SHVA-6130A" with enhanced surface waviness correction (Max 5mm) for large-diameter workpieces (Max Φ600mm) to pump manufacturer K
(Heisei 22)
Began sales of the "SB-7702" and "SB-8801" series with new CPUs and improved computation speed over previous products
Began sales of battery-powered field balancers "SB-8001GB" and "SB-8002RB" with 3.5-inch color LCD
Developed the fully automatic balancing correction machine "SHVA2-6130A" enabling 2-plane balance correction in a single on-machine setup
Exhibited "SHVA2-6130A," "SHVA2-6130AT," and "SB-8002RB" at the 25th JIMTOF
(Heisei 23)
Developed the 1-4 plane correction field balancer "SB-8801RB" with battery-powered 5.7-inch color LCD and USB communication
Began sales of the "SB-7005" series as successor to the "SB-7004" series
Exhibited "SHVA2-6130A," "SB-7702," "SB-8801RB," "SB-7005" at TEST2011
(Heisei 24)
Company employee awarded by the Japan Testing Machine Association
(Heisei 25)
Began sales of the "SB-8802" series as successor to the "SB-8801" series
(Heisei 26)
Began sales of the "SB-7006" series as successor to "SB-7005," and the "SB-7705" series as successor to "SB-7702"
Received the Technology Contribution Award from JSME Chugoku-Shikoku Branch
Exhibited the vibrometer "VM-1001 Series" at the 17th Kansai Machine Element Technology Exhibition
(Heisei 27)
Exhibited improved field balancers "SB-7705R" and "SB-8802R," balancing machines "SHV-5110A" and "SSB-6001A," condition monitoring system, and vibration exciter at TEST2015 and others
(Heisei 28)
Started measurement instrument rental business
(Heisei 29)
Renewed from "SB-8802RB/7705RB" series to "SB-8805RB/7706RB" series; released condition monitor
(Reiwa 3)
Renewed from "SB-8805RB/7706RB" series to "SB-8806RB/7707RB" series
