Sigma (company)

For the other meaning of Sigma, please refer to Sigma (disambiguation).

For the South Korea markets of the Sigma products, please refer to LG-OTIS.

Sigma Elevator Company
The current logo, used since 2012.
Year established	2000
Year of closure	currently still running
Division of	Otis Elevator Korea (OEK)
Status	active
Manufactures	Complete elevators, escalators and moving walkways, including their related components
Headquarters	8F Two IFC, 10 Gukjegeumyung-ro, Youngdeungpo-gu, Seoul 150-945 South Korea
Service locations	Worldwide (see Distributors list)
Preceded by	GoldStar (1968-1994) and LG (1995-1999)
Subsidiary of	Otis Elevator Company
Website	http://sigmaelevator.com/
Subsidiaries
Sigma Elevator Singapore Pte. Ltd. Sigma Elevator (M) Sdn. Bhd. Sigma Elevator (Thailand) Co. Ltd. Sigma Elevator (Hong Kong) Co. Ltd. Dalian Sigma Elevator Company Suzhou Express Elevator Co., Ltd.

Sigma Elevator Company is a South Korean elevator company. A subsidiary of Otis Elevator Korea (OEK) in South Korea, it serves as a brand of Otis Elevator Korea for overseas/export markets and was established in 2000 to replace the LG-OTIS brand overseas.

History

Sigma was established in 2000, a year after Otis merged with LG Industrial Systems's elevator division and became LG-OTIS. It was established as a brand of Otis Korea for overseas markets.

In 2014, Sigma had a partnership with EXPRESS Elevator Co., Ltd., an elevator company based in Suzhou, China as well as a subsidiary of Otis. In 2016, Express/Sigma opened their headquarters in Suzhou, China.

Locations

As of now, Sigma has operations in over 60 countries which are all represented by local distributors and sole agents. It also has subsidiaries located in Singapore (currently subsidiary of Otis Singapore Co (S) Pte Ltd.), Malaysia, Thailand and Hong Kong (China, currently subsidiary of Otis Elevator Company (HK) Ltd.).

The headquarters is located on the eight floor of Two IFC in Seoul, South Korea. Its factories are in China, one located in Hangzhou (Otis Electric) and another one located in the Tianjin Economic-Technological Development Area (TEDA) in Tianjin (Otis Tianjin factory). It also has another factory in Dalian (operated by Dalian Sigma Elevator Company) which was opened in 1997 to meet the demands on the Chinese elevator market. It was closed in 2016.

Until 2013, production was mainly done in their Changwon factory in South Korea, which had been operating when GoldStar was still in business. In 2013, the factory was closed after it was sold to LG Electronics, and production was moved to China. This was also the same case for Otis Elevator Korea, where elevators installed in South Korea were manufactured in China. In 2017, Otis Korea announced that it would build a new research & development center and a manufacturing facility in Songdo International City in Incheon, South Korea, which construction started in 2018 and was completed in 2019. With local production for Otis Korea has resumed in this new facility, it is likely that Sigma would resume its local production there.

In the United States, Sigma elevators were distributed by CemcoLift, an elevator company based in Hatfield, PA that was part of Otis. However, CemcoLift shuts down in 2012 and distribution of Sigma elevators has since been discontinued. CemcoLift had only installed very few Sigma elevators in the U.S.

Notable elevator and escalator models

Elevators

Current

• ACRA: Low to mid rise traction elevator model (possibly based on the either Otis OH6000 or Otis Arise). Successor of Di1, Di2 and Iris, and formerly known as Iris NV between 2013 and 2019.
• Iris 3: Traction elevator model for high rise buildings, based on the Otis SkyRise. Successor of both DS4 and Di5.
• Iris NR: A model belongs to the Iris series that is designed exclusively for the Russian and CIS markets, and mainly for residential buildings. The IRIS NR has speed range of 1.0 m/s up to 1.75 m/s with capacity ranging from 450 kg to 1000 kg. It was launched in 2013.
• Iris Premier: An upcoming model designed for low cost residential and hotel buildings. It has a speed range of 1.0 m/s up to 1.75 m/s with capacity ranging from 450 kg to 1000 kg and stops up to 32 stops.
• Solon Premium: Machine room less elevator for low to mid rise buildings. Successor of the original Solon model, and formerly known as Solon NV between 2013 and 2019.
• Muse NV: Sigma's version of Otis Gen2 machine room less elevator, which based on the Otis Gen2-Regen. Successor of the original Muse model.

Discontinued

• Distributed Inverter (Di): Standard passenger elevator model for low to high rise buildings which had been sold since 1998 (under LG). Discontinued in 2012-2013 and succeeded by Iris NV (now ACRA) and Iris 3.
  • Di1: Geared traction for low to mid rise buildings, with maximum speed of 1.75 m/s.
  • Di2: Geared traction for low to mid rise buildings, with maximum speed of 2.5 m/s.
  • Ds4: Gearless traction for high rise buildings, with maximum speed of 4 m/s.
  • Di5: Gearless traction for high rise buildings, with maximum speed of 7 m/s.
• Muse: Sigma's version of Otis Gen2 machine room less elevator.
• Iris: Standard passenger elevator for low to mid rise building, manufactured by Dalian Sigma Elevator Co. Ltd. in Dalian, China. Discontinued and succeeded by Iris NV in 2012-2013.
• Solon: Machine room less elevator for low to mid rise buildings. Succeeded by Solon NV (now Solon Premium since 2019).
  • Solon Standard: The standard version.
  • Solon Comfort: Version with limited specifications.
• RTE: Passenger elevator for residential buildings, only sold in Russia.
• EMR1000: Low-cost machine room less elevator for low rise buildings with 450-1000 kg capacity range. Discontinued possibly due to low sales.

Escalators

• Vera: Current escalator model for commercial applications. It is Sigma's version of XO21NP, and a successor of Sigma SCE.
• SCE: Sigma's previous escalator model for commercial applications, now succeded by Vera, and discontinued. The model name is an acronym of "Sigma Commercial Escalator".
• SCT and SET: Inclined moving walkways, discontinued.

Notable installations

Main article: List of notable Sigma elevator installations

Overseas distributors

Current

Company	Country(s)	Notes
Access Group	Sri Lanka
Al Majid Group	United Arab Emirates
Astanalift Co. Ltd.	Kazakhstan
CGC Elevators	Saudi Arabia
Darwish & Company	Qatar
Data Engineering Ltd.	Mauritius
Fortune International Co. Ltd.	Myanmar
PT. Jaya Kencana	Indonesia	Was originally a distributor of GoldStar and LG elevators and escalators in Indonesia from 1983 until 2001.
Khan Brothers Equi-Build Limited	Bangladesh
Marafie Engineering Group Company	Kuwait
Regional Traders Ltd.	Bangladesh
PT. Seltech Putera Perkasa	Indonesia	Serves Pekanbaru, Riau only. Since 2011
S Lift	Russia
Sedate Trading Co., Ltd.	Myanmar	Since May 2017

Former

Company	Country(s)	Notes
CemcoLift Inc.	United States	Based in Hatfield, PA. A subsidiary of Otis. Defunct in 2012.

Incidents

• A Sigma elevator (Lift 5) in Blok M Square, Jakarta, Indonesia fell down from the 7th floor in the afternoon of March 17, 2017. The accident was caused by overloading; the elevator, which has a capacity of 24 persons or 1600 kilograms, was filled with 25 people (although some sources said that 35 people were entering the elevator). Witnesses said the elevator stopped on the 3rd and the 1st floor (because of safety brake got triggered) during freefall before hitting the bottom floor, injuring 25 people inside
• Another Sigma elevator fell down in Pattaya Center Hotel in Pattaya, Thailand on March 7, 2017, causing nine district officials injured..
• Between 2015 and 2017, several new Sigma elevators in various Housing & Development Board (HDB) estates in Singapore were plagued by numerous breakdowns and problems. This resulted the company being banned by HDB from tendering new projects since late 2015.

Trivia

• In Taiwan, Sigma elevators are installed by Tatung Otis Elevator, and elevators in there are often branded as Tatung Otis.
• Since Sigma is a subsidiary of Otis Korea, the name "Otis Elevator Korea" (or OEK) is often found in certain parts or components that are usually not visible to the public. The name is also printed in the elevator protective covering sheets, which are usually found in brand new elevators that have just been installed.
• A few China made Sigma models, such as the Iris NV and Solon NV, were also sold in South Korea but they were branded as Otis. This is because Otis Korea had closed its local factory and moved its production to China, so most of the elevators installed before 2019 came from China.

Gallery

Logos

Sigma's older logo, used from 2000 until the early 2010s.

The new logo, used since the early 2010s.

Nameplates and capacity badges

2000s Sigma capacity badge.

Sigma logo on an escalator landing plate.

Typical Sigma capacity badge, with directional arrows and alarm button.

Different Sigma elevator capacity badge.

Sigma logo with the "Otis Elevator Korea" name below.

Different Sigma logo nameplate.

Sigma elevator traction motor controller data plate.

Sigma capacity badge in Hong Kong.

Others

The Changwon factory in Changwon, South Korea.

A generic (just installed with Dewhurst Fixtures and a generic Wittur door operator) Sigma elevator in Choi Tak Shopping Centre.

Sigma sticker about not to open the doors by force pasted on the elevator doors' protection wrap.

A Sigma elevator traction motor found in Bali, Indonesia.

Sigma maintenance barrier in Bali, Indonesia.

Sigma maintenance/repair barriers in Indonesia.

See also

• List of Sigma elevator fixtures
• GoldStar and LG Elevator - Sigma's predecessors
• Otis and Otis Electric

External links

• Official website
• Old official website (Archived)
• PT. Jaya Kencana (sole agent/distributor of Sigma elevators in Indonesia)