For almost 40 years, GROUPE MAILLARD INDUSTRIE (GMI) has been specialising in processing plastic materials using rotomoulding techniques.
From the initial product idea to its series life, the GROUPE MAILLARD INDUSTRIE has the human and technical skills to deliver the most suitable solutions to meet the needs of manufacturers.
GMI supports its customers over the project life cycle: preliminary surveys, research, design, modelling, prototypes, tools; pre series and series.
A finishing workshop completes installations and oversees assembly and controls: gluing, ultrasonic welding; marking – screen-printing- painting, riveting, assembly of accessories and insets…
More than just a rotomoulding sub-contractor, GMI is a genuine project manager able to support its customers in achieving their projects both in France and internationally.
Our skills
at a glance
Integrated design office
Tool creation
Prototyping
Part up to 6000 mm
spherical diameter
PSE PEE foaming
Welding – Assembly
Recycling
1
Specifications
Eco-design – Industrialisation
2
Prototype – Tools – Certification
3
Series production – Assembly – Quality control
4
Delivery – Stock management
With an extensive integrated design office and engineers specialising in rotomoulding, we will support you and carry out a complete project management.
In order to ensure the very best results for you, we manage the production of all tools, whether they are produced using boiler making, machining or aluminium foundry techniques.
Equipped with several micronisation centres and raw material storage silos, we are able to provide our customers with a diverse range of materials to quickly meet the demands of multiple markets.
Rotomoulded parts can be manufactured in different colours by dry colouring or colour matching.
We can meet all your small, medium or large series project needs with 12 rotomoulding lines, the spherical diameters of which vary from 2200 mm to 6000 mm.
To meet the needs of specific markets requiring buoyancy, insulation or other applications, we have a polystyrene foaming facility, as well as a polyurethane foaming facility.
To guarantee our customers consistently high quality manufactured products, we carry out daily raw material analyses (granularity, castability…) as well as ageing tests and chemical and mechanical resistance tests in our laboratory.
Finishing operations (robotised profiling, machining, drilling…) and assembly (gluing, welding, assembling of accessories) are carried out in dedicated workshops.
Finished products are stored in secure warehouses before shipping. We oversee delivery for our customers from these storage platforms for a range of logistics options (B2B, B2C…).
As part of our commitment to the environment, we are committed to recycling rotomoulded parts at end of life thanks to a high-capacity processing and recovery plant.
One of the particular benefits of rotomoulding is that it makes the creation of technical plastic parts of complex, varied and aesthetic shapes possible without gluing or welding (without any risk of leakage).
It is possible to produce plastic parts in a range of shapes, sizes, colours, appearances, volumes… They can vary in complexity, can be hollow or with sides, with metal inserts…
The shapes can be simple (spheres, containers) or complex (fuel tanks, automotive parts).
Rotomoulding is a technique that meets the needs of manufacturers in a wide variety of sectors such as automotive, industry, agriculture, road safety, boating or design …
Rotomoulding is a plastics processing technique whereby a metal mould (aluminium or steel) is filled with plastic (polymer) in powder form. The mould is then subjected to rotation whilst being heated. This causes the plastic to coat the inside of the mould and to take on the shape of the mould. After a cooling phase, the plastic solidifies and can be removed from the mould. The rotomoulded part is ready for use!
Rotomoulding makes it possible to create a wide range of plastic objects without joins or welding. The production of hollow parts is also possible. These can then be filled with another material (foam, polystyrene…). GMI has a foaming facility which means that we are able to offer you a complete product range.
Whilst polyethylene is the most commonly used material, other thermoplastics can also be
Rotomoulded, including bio-sourced materials.
The GROUPE MAILLARD INDUSTRIE supports and guides you in choosing the right plastic depending on the characteristics you expect from your finished parts or plastic objects.
– Shock resistance
– Anti-fire standards
– Chemical impermeability
– Defence standards
– Scratch resistance
– Ageing (oxidation, UV, …)
– Etc…
Our R&D department develops, in partnership with plastics processing laboratories and research centres, special materials to meet the specific criteria of its customers.
THERMOPLASTICS AT GMI:
LDPE (Low density polyethylene)
MDPE (Medium density polyethylene)
HDPE (High density polyethylene)
Polyamide: PA 12, PA 6, PA 6-6 / PA11
PP
PVC
PC
The main characteristics of PE in rotomoulding:
Shock resistance over a large temperature range
Chemical inertia
Electric insulation
The main characteristics of Polypropylene (PP) in rotomoulding:
Similar properties to PE with increased rigidity Good
impact resistance
Temperature resistance (100°C), up to 140°C at peak Good
Chemical resistance
The main characteristics of Polyamide (PA) in rotomoulding:
Good mechanical behaviour at high temperatures
Good chemical resistance to solvents, oils, hydrocarbons…
