1952
- Roger Dane & family founded Sigma Air Conditioning in Sydney specialising in Truck Cabin Air Conditioning
1982
- SIGMA Air Conditioning Incorporated commenced in Chicago
1985
- SIGMA Acquired Clima's Mining Business
- Expands to VIC & WA regions
- First Issue of SIGMA Signal Newsletter
- New Defence contract for the design & manaufacture of SIGMA DPW6-Series AC Units
- New Clima Model EB15 In Cab Hoodliner Unit
1986
- New CS75 240VAC Roof Mounted AC unit developed for Tower Cranes and Small Cabins i.e. Toll Booths
- New M15 Roof Mounted AC designed for Electric Shovel & Draglines operator cabins
- New CS79, CS89, CS81, CS94 Industrial Pressurisers designed, also fitted to Electric Dragline and Shovel fleet
- 1000th EA4P Unit manufactured and shipped to Mine for Haul Truck application
- Contracted for Mount Isa mines Underground Haul Trucks
- New FVF90 Mining & Industrial Pressuriser designed and supplied to market, also used on Electric Dragline equipment
- New AC units designed for Tractor equipment
- EB12 AC units fitted to Tower Cranes plus various earth-moving off road equipment
- M-Series upgraded to reduce noise and improve performance
1988
- SIGMA merge to one site in Brisbane (West End)
1989
- New AC unit designed for Big Banana mono rail
- New products developed
- EC4
- EC6
- TFC6
- PVV50
1990
- New Entity Sigma Industries (formally SIGMA Air Conditioning)
- New SIGMA TDR6BR1 designed with R12 refrigerant
- New PVV30B1 pressuriser developed with Activated Carbon Filters
- New SIGMA S-Series developed for Sydney Water Board plus other Industrial end users
- SIGMA agreement to supply SIGMA AC units for Savage River Mine Tasmania
- SIGMA supplies Dale B Elphinestone Tasmania for all underground mining equipment
- SIGMA now Carrier Transicold Truck Refrigeration Australian Distributor (Agent)
- Transfer of Clima West End Brisbane Production to SIGMA Lidcombe NSW
- SIGMA develop New PPU500-series for Water Treatment plants NSW
- SIGMA develop E-Series Air Conditioning units to suit All Terrain Mobile cranes
- New SIGMA TDR7BR4 developed for Wirtgen 4200 Continous Miners
1992
- New SIGMA T-Series range developed including
- TDR6
- TFR6
- TCF6
- TFC6
- New SIGMA EFW3BR1 In Cab Evaporator designed and fitted to small OEM earth-moving cabins
- SIGMA R12 to R134a AC units developed
- New SIGMA E-Series range developed including
- EC22C
- EC22H
- EC12H
- SIGMA develop new PVV50-Series Hi-Efficiency Filter unit
1995
- SIGMA Industries business sold to Futuris Corporation Air International Group now known as (Air International Transit) SIGMA refers to Product name
1997
- SIGMA Lidcombe site sold and a new operation & office facility specifically built at Huntingwood Sydney NSW
1999
- SIGMA develop EC6E-Series designed to suit Ingersol Rand Road Rollers equipment
- SIGMA developed Dual TFC8BX1 with TCF8BX1 Air Conditioning systems to suit O&K Mining Shovels/Excavators
2001
- SIGMA develop Dual M20 Air Conditioning systems to suit P&H 4100-Series Electric Shovels
2005
- SIGMA develop integrated E-Series Air Conditioning systems to suit Komatsu PC-Series Excavators
- SIGMA developed New EC22H-EC22C Air Conditioning systems to suit Brisbane CityCat Ferry Fleet
- SIGMA designed and manufactured new TFR6BX3 Roof mounted Air Conditioner to suit Dozer machines where service access to all AC components was from inside the cabin
- SIGMA develops new Air Conditioning system to suit Underground Wheel Loaders with EC12H4SS In Cab Evaporator with AS5097 Remote Condenser Unit
- SIGMA develop Air Conditioning systems to suit Hammer Drill Rigs with EC22H4 units
- SIGMA develop and fit Cab Pressuriser Units to suit Dozer, Wheel loader, and excavator equipment for Mining end users
2007
- Air International Transit business sold and now owned by ANZ Equity and Private Share Holders, business now refers SIGMA Coachair Group
2008
- SIGMA Coachair Group manufacturing transfered to Milperra Sydney NSW
- SIGMA wins contract for the design and supply of New HVAC units for Boyne Smelters Aluminium Smelter Queensland
2009
- SIGMA awarded contract to develop and supply SIGAM M25-Series Package Air Conditioners to suit BHP Norwich Park Mine Switch Room project
- SIGMA develop new HDC170 Single Drive and HDC400 Dual Hydraulic Driven Compressor Units for the Mining market
2010
- SIGMA Coachair Group business sold to Knorr-Bremse Group, business now refers SIGMA Air Conditioning Pty Ltd
2015
- New SIGMA Model EFF4BX1 In cab Evaporator designed for All terrain mobile cranes Model MAC25
- SIGMA design new aftermarket TFF5 & TCW5 HVAC solutions to suit Shovel Mining equipment
- SIGMA develop new Anti Idle 24VDC solutions for the Mining industry
2019
- SIGMA Air Conditioning Pty Ltd business name no longer used, new entity refers Knorr-Bremse Australia Pty Ltd
- SIGMA develop new E-Series Air Conditioning systems to suit Haul Trucks
2020
- SIGMA develop new TFC6 & TCF6 for Mining Blasthole Drill rig equipment
2021
- SIGMA develop new H13 HEPA Filters for Pressuriser range
- 1 new patent pending
- 6 new dealers
- SIGMA exhibited at
- LandForces, Brisbane, AUS
- MinExpo, Las vegas, US
- New markets
- Thailand
- Indonesia
2022
- SIGMA to develop new Battery Thermal Management Chiller System
2023
- Patent granted for cooling system for cooling batteries of an electric vehicle
CONTACT
SIGMA Merak HVAC Australia Pty. Ltd. (Sigma)
Granville NSW 2142
Australia
mid.aus@sigma-hvac.com