Design of bespoke equipment in steel, stainless steel and aluminium for industrial clients
Renowned for its expertise in the metalworking sector, GMI and its subsidiary ITS design and manufacture welded steel structures and assemblies – ranging from small to large, and from simple to complex – for all sectors of industry in France and internationally.
Much more than just a subcontractor specialising in welded metal fabrication (100 % French manufacturing), GMI supports you throughout the design and production of your prototypes, as well as the mass production of complete or partial metal sub-assemblies.
From single-off parts to mass production, GMI supports industrial buyers and project managers in the production of metal parts, frames, assemblies and sub-assemblies made from steel, stainless steel and aluminium, intended for a wide range of markets: agricultural machinery, specialised vehicles, supply chain, the environment, waste treatment, energy, defence and industrial equipment.
Thanks to our in-house engineering départment and our workshops specialising in laser cutting, folding, bending, MIG/MAG/TIG and laser welding, paint finishing and assembly, GMI delivers metal assemblies that are ready for integration, quality-assured and suitable for mass production.
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The strength of our manufacturing capabilities
– Unrivalled industrial capacity: with 50,000 m² of workshop space and 120 tonnes of steel processed every day, Groupe Maillard Industrie is a leading player in the metal fabrication sector in France.
– Our in-house engineering Department: a team of 45 technicians and engineers supports you right from the co-design phase to optimise your costs and ensure the feasibility of your metal structures.
– Key figures on our production capacity:
Our skills at a
glance
In-house engineering Departments
Laser cutting
(tube and sheet)
Cutting / Folding / Bending
MIG/MAG and TIG robotised and
manual welding
Finishing / painting
Assembly
The equipment allows the shaping of tubes or sheets and meets a wide range of manufacturing requirements for metal parts and finished or semi-finished assemblies. Our experience in welding ensures quality and productivity.
Main industrial equipment
Shearers: cutting width 3000 mm, up to 12 mm
Press brake: Apron length 4000 mm
Punching Machine: Up to 12 mm, width 120 mm
Band saws: 6000 mm length, max. square profile 300x 100 mm, max. diameter 180 mm
Large-format bending machine: maximum workpiece length 6,000 mm; steel: max. Ø 50.8 mm up to 2 mm; stainless steel: max. Ø 45 mm up to 2,5 mm; drawn steel: 4 to 18 mm; 3 multi-radius/multi-stage tracks
Welding: high-capacity welding workshops, equipped with semi-automatic and robotic stations
Our welding expertise meets all requirements for steel, stainless steel and aluminium.
To meet the manufacturing needs of medium and large production runs in a highly competitive manner, we have a high-capacity welding plant, equipped with semi-automatic and robotic stations.
Key industrial equipment
— 70 MIG, MAG and TIG stations
— 1 laser welding booth
— 6 welding robots
— pulsed welding
— pendulum robots
— 2-axis linear robots
— modular work tables
— high-capacity dimensional production
Completion – Finishing
We are equipped to offer aesthetic finishes and technical coatings on all your projects, in particular paint and marking finishes, stainless steel polishing, anti-corrosion treatment…
For your aesthetic parts, we have an automated polyester epoxy powder paint line and a liquid paint booth.
Main industrial equipment
— Polyester epoxy powder paint line: 32 cradles – 2000 x 2000 x 3000 mm – 400 hours of salt spray resistance
— Large dimension liquid paint booth: 7000 x 3000 x 3000 mm
— Blasting centre: 2000 x 2000 x 2000 mm
Assembly, fitting and logistics
We carry out assembly operations in a dedicated workshop to deliver finished assemblies to you. We have the capacity to produce finished products involving the assembly of accessories, the integration of complex components and functions, as well as the logistical management of your metal parts or mechanically welded assemblies.
Main assembly and fitting operations
— Assembly to drawings: chassis components, mechanical components, various accessories (screwing, drilling, fitting inserts, riveting, bolting, etc.)
— Fitting of components: springs, hinges, wheels, castors, locks, mechanical components (bearings, pins, axles), on-board power systems
— Robot: robot-assisted assembly of sub-assemblies and finished metal parts, with measurement reports and quality control.
Analysis and monitoring
To ensure the compliance and reliability of your mechanically welded components, we carry out all analyses and inspections in-house, using state-of-the-art measuring equipment and teams qualified to the leading international welding standards.
Measurement and inspection equipment:
— Portable 3D scanner
— 3D measuring arm
— Paint coating thickness gauge
— Material strength testing
— Structural analysis of materialsOur qualifications:
— QMOS and DMOS procedures for the validation of our welding procedures
— Welder qualification in accordance with ISO 9606-1
— Operator qualification in accordance with ISO 14732
— Welding supervision in accordance with ISO 14731
Environmentally responsible approach
To minimise the environmental impact of our mechanical welding operations, GMI has always been committed to an eco-responsible approach:
— Eco-design of our products
— Optimisation of all raw materials used (steel, stainless steel, aluminium, etc.) in our production processes
— Recovery of our end-of-life products for material recovery (carry-over, retrofit, reuse).The life cycle of our products forms part of a virtuous cycle:
– Collection of end-of-life products: assessment, collection and transport
– Product management: logistics and storage
– Processing at our recycling facility: dismantling, sorting, washing
– Processing of recovered materials: reuse or transfer to recycling channels
AGRICULTURAL MACHINERYGMI manufactures metal assemblies for manufacturers of agricultural machinery and mechanisation equipment.
In particular, GMI produces frames for rotary saws, mini-excavator frames, containers for drying timber, metal brackets for tractor bumpers, connecting parts, frames, bases, mechanical guards, etc.
These products (mechanically welded agricultural chassis, agricultural metal structures, metal supports for tractors, agricultural machinery, etc.) meet the requirements of the agricultural sector: robustness, mechanical strength, repeatability in series production, adaptation to field conditions and compatibility with the painting, fitting and final assembly stages.
MOBILITY AND SPECIAL-PURPOSE VEHICLESGMI supports manufacturers in the mobility sector in the production of chassis, load-bearing metal structures and metal sub-assemblies for special-purpose vehicles, rolling stock, airport equipment, etc.
Our projects include, for example, chassis for airport vehicles, chassis and tanks for TGV bar carriages, as well as steel structures converted into toilet facilities for public transport drivers.
Our aim is to supply reliable, mechanically welded assemblies with precise dimensional control, ready for integration into constrained environments.
ENVIRONMENT, WASTE MANAGEMENT AND RENEWABLE ENERGYGMI designs and manufactures welded steel assemblies for organisations operating in the environmental, waste management and renewable energy sectors.
GMI has already brought numerous metal assemblies into series production: waste management skips, transport containers, metal supports for floating photovoltaic panels, stainless steel structures for storage tanks, housings and technical equipment subject to the stresses of intensive use.
These products combine robustness, ease of handling, long-term durability and adaptability to the requirements of collection, storage, sorting or industrial operations.
SUPPLY CHAIN AND ERGONOMICSGMI manufactures metal equipment and welded steel structures designed to improve logistics flows, material handling and comfort in the workplace.
Our products include, in particular, ergonomic tables, electric trolleys for e-commerce, storage racks, electrically-assisted rolling bases, and bespoke supports and structures for industrial environments.
This equipment is designed to address specific challenges: reducing physical strain, optimising workflows, ensuring safe handling and integrating seamlessly into workshops, warehouses or production lines.
Entrusting a mechanical and welding project to GMI means relying on an industrial partner capable of managing the entire value chain:
This integrated approach enables us to ensure on-time delivery, control costs, guarantee the repeatability of parts and deliver ready-to-use metal assemblies.
GMI manufactures custom-designed mechanically welded frames for special-purpose vehicles, agricultural machinery, industrial equipment and logistics applications.
Download our brochure: GMI – EXPERTS IN WELDED STRUCTURES AND METAL ASSEMBLIES
What types of welded assemblies does GMI manufacture?
GMI manufactures chassis, frames, supports, metal structures and welded sub-assemblies for industrial clients. These products may be used in agricultural machinery, specialised vehicles, the supply chain, environmental applications, waste treatment or specific technical equipment.
Does GMI produce bespoke welded frames?
Yes. GMI designs and manufactures bespoke welded frames based on drawings, specifications or functional requirements. The frames can be made from steel, stainless steel or aluminium, and delivered with a finish, paintwork, assembly or the integration of accessories.
Can GMI produce mechanically welded parts in series production?
Yes. GMI’s industrial organisation enables it to produce mechanically welded parts, structures and assemblies in medium or large series, using manual, robotic and laser welding methods.
What materials are used for welded fabrications?
GMI primarily processes steel, stainless steel and aluminium to manufacture welded parts and assemblies for industrial applications.
Does GMI handle finishing and assembly?
Yes. GMI can handle finishing, painting, shot blasting, anti-corrosion treatment, assembly and fitting operations in order to deliver complete or semi-finished metal assemblies.
What types of welded assemblies does GMI manufacture?
GMI manufactures chassis, frames, supports, metal structures and welded sub-assemblies for industrial clients. These products may be used in agricultural machinery, specialised vehicles, the supply chain, environmental applications, waste treatment or specific technical equipment.
Does GMI produce bespoke welded frames?
Yes. GMI designs and manufactures bespoke welded frames based on drawings, specifications or functional requirements. The frames can be made from steel, stainless steel or aluminium, and delivered with a finish, paintwork, assembly or the integration of accessories.
Can GMI produce mechanically welded parts in series production?
Yes. GMI’s industrial organisation enables it to produce mechanically welded parts, structures and assemblies in medium or large series, using manual, robotic and laser welding methods.
What materials are used for welded fabrications?
GMI primarily processes steel, stainless steel and aluminium to manufacture welded parts and assemblies for industrial applications.
Does GMI handle finishing and assembly?
Yes. GMI can handle finishing, painting, shot blasting, anti-corrosion treatment, assembly and fitting operations in order to deliver complete or semi-finished metal assemblies.
