ARO Welding Technologies - Leader in Resistance Welding

Since 1949, ARO Welding Technologies SAS has been a leader in resistance welding technology providing the automotive and manufacturing industries with innovative robotic welding, manual welding and stationary welding systems. From spot welding and projection welding, to seam or butt welding, we provide the optimum solution. ARO is headquartered in Chateau-du-Loir, near Le Mans in France, with regional offices in Europe, the Americas and the Far East as well as independent sales and services partners. ARO is a division of the multi-disciplined UK engineering group, Langley Holdings plc.

Our history


In Paris on the 24th June 1949 ARO was founded by Mr Albert Roland with a capital of one million francs. The aim: to manufacture and sell resistance welding equipment to the motor body repair industry.


ARO opens its first subsidiary in Germany.


On April 1st the Chateau du Loir factory was opened and began manufacturing.

ARO receives an Oscar from the French minister of finance and economics, Mr Antoine Pinay, for the exportation efforts of its products to over 21 countries.


ARO celebrates its 20th anniversary. The company has demonstrated a steady growth over the first 20 years and hopes to maintain this into the future.


IWKA buys ARO to allow the flexibility of a medium sized firm yet the technical and financial potential of a big firm. It is allowed product expansion into resistance welding guns.

Headquarters moves from La rue de la Colonie in Paris to Chilly-Mazarin, next to the factory.


ARO welding in the UK is established.


ARO delivers its first commercial project using electric motorization.


An acquisition with American company SAVAIR is made to facilitate trading in America.

ARO obtains ISO 9001 Certification.

ARO celebrates its 50th anniversary with a 3 day event. Clients from across the world were invited to celebrate as well as family and friends of employees. As part of the occasion, ARO launched its new manual gun series: the Ergoline range.


The building for the ARO controls division is constructed. They are responsible for researching and developing the controls and electrics for all welding equipment.


ARO opens a subsidiary in Wuhan, China.


In December of 2006 Langley Holdings plc acquired ARO Welding Technologies from German MDAX listed automation group, IWKA AG.


ARO was awarded the Ford Q1 award after recognition for its high standard in quality.

2008 also saw the launch of the auto adaptive range.


ARO launches innovative robot Weld guns range : 3G.


Aluminium Welding Solution: launch for mass production (ex: FORD F150)


ARO opens a subsidiary in Sao Paulo, Brasil.


New showroom and welding laboratory at Montval sur Loir plant showing the latest ARO innovations.

Commercial launch of “Servoline”, a plug and play servo manual station, eliminating the need for compressed air in manual welding.

Celebrating 70 years in business, today ARO continues to remain the market leader in adaptive resistance welding technology with around 500 employees worldwide.

ARO innovates by proposing SERVO manual solutions

Immediate savings and simplicity: the use of the servo technology eliminates the need for compressed air in manual welding.

Servoline: servo manual welding station. The Servo technology brings to the manual welding operations all its strong benefits – high performances, cost efficiency, and highest reliability. – henceforth recognized by the automotive industry using almost 100% of sevo welding guns for robotics.

Read More

Resistance Spot Welding of Aluminium Alloys: Full Solution Package

Resistance spot welding is the dominant joining technology in vehicle construction as it offers a number of advantages: high speed, low cost, limited fixturing, high flexibility and high process robustness. Motivated by light weighting, more aluminium alloy parts have been introduced in the BIW and several major OEMs already successfully apply RSW to join those parts in aluminium intensive vehicles mass production.

Read More

TATA selects ARO for India’s largest EV plant

State-of-the-art plant to produce 300,000 EVs per year. Tata Passenger Electric Mobility Ltd (TPEM), India's largest EV producer, has chosen ARO robot welding technology for its latest EV factory in Sanand, Gujarat.

Read More

Ford commends ARO’s aluminum welding solution

Over 600 million faultless welds on aluminum F-150 pickup line. ARO USA is proud to announce that Ford Motor Co.'s Dearborn welding improvement team have commended the exceptional quality and reliability of ARO's aluminum welding solution for its F-150 pickup truck.

Read More


  • ARO Profile

  • ARO Certificate ISO 14001

  • ARO Certificate ISO 9001

  • ARO Quality and Environmental Policy

Get in touch

Visit our website to learn more or get in contact