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26.01.2018

New projects ... New technologies


LE JOINT TECHNIQUE was approached by a major manufacturer of high-security pressure regulators and valves which was looking for an economic industrial solution for manufacturing a broad range of high-precision membranes and valves using diverse and varied materials: EPDM, NBR, FPM, Polyurethane, etc.

There was a major problem in that its requirements were not compatible with the cutting techniques available on the market:

  • Tolerances of +/-0.05 for thicknesses, whereas this involves elastomers
  • Tolerances of +/-0.1 for diameters of up to 40 mm and +/-0.15 above that
  • Holes/vents: up to Ø0.6 mm with a depth of 1.5 mm
  • Machined grooves.

LE JOINT TECHNIQUE decided to take on this major challenge!

From a blank sheet, by relying on the knowledge and experience of our design office, we came up with the SOLUTION:

  • Tailoring machines and processes
  • Dedicating a specific workshop
  • Designing special tools
  • Experimenting, testing, adapting
  • New experimenting, testing, validating.

In less than two years, this resulted in LE JOINT TECHNIQUE successfully delivering some 150 miscellaneous and varied valve and membrane products, amounting to over 3 million quality parts.

This “made in LJT” technology is now attracting other sectors such as watchmaking and aeronautics.

Why not you?

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                                    New projects ... New technologies
26.01.2018

First silicone 3D printing solutions


                                    First silicone 3D printing solutions

3D printing is a technology that is still new and evolving.

Not all that long ago, 3D printing was limited to metals (Metal Fusion or Additive Layer Manufacturing (ALM) and thermoplastics (Fused Deposition Modeling (FDM).

Back then, the only solution for flexible materials available to us was a polyurethane FDM – with polyurethane belonging to the large family of thermoplastics – but there was nothing for vulcanized elastomers.

The drawback of polyurethane is that it has very limited mechanical and thermal characteristics (low elastic recovery, poor temperature behavior and low compression set).

But now, thanks to the support of its Liquid Silicone Rubber (LSR) suppliers and the latest developments in these materials, LE JOINT TECHNIQUE can offer you a new silicone 3D printing technology: Drop on Demand.

This is a solution for rapid prototyping or very small series of silicone parts.It produces parts that are very realistic, both geometrically and mechanically; only the external appearance of the part differs, since graining or polishing is, of course, not possible.

With silicone 3D printing, the mechanical characteristics are almost identical to those of a molded part made from LSR. The temperature behavior is very similar to that of conventional silicones (>200°C).

This technology is already offered in several hardnesses, and even color can be added! :

  • 30 Shore A and 40 Shore A: Translucent, nude (Pantone 7513C), RAL 9011 Graphite Black, RAL 3000 Flame Red, RAL 9010 Pure White and RAL 7001 Silver Gray
  • 60 Shore A: Translucent only.

It will soon become an indispensable milestone for your developments because silicone 3D printing enables you to confirm the ease of assembly and functionality of your parts very quickly and at a lower cost.

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26.01.2018

Investments made in 2018 ... 12% of the turnover


                                    Investments made in 2018 ... 12% of the turnover

LE JOINT TECHNIQUE is pursuing a sustained investment program to support its growth policy and to maintain its high levels of service to its customers and competitiveness at an international level:

  • Automation
  • new technologies
  • ergonomics
  • 100% visual control
  • digitalization

are an integral part of our investments in 2018.

This year has begun with our fully robotized liquid silicone injection workshop having just acquired a bridge crane, a new, high-capacity, connected precision oven and a press and robot unit in order to be able to start an innovative new project in partnership with a customer.

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26.01.2018

Questions for


                                    Questions for

Our colleagues talk about their job... We are launching a new series of articles in which we will meet the men and women who contribute to the rich tapestry of our company.

Today, let’s meet Bruno Turpin | Industrial Manager, R&D |

  • Bruno, tell us about yourself. What is your professional background?

I’m a link in the human chain that adds value to the company I work for. I’m tough on myself. I like progress because I think I owe it to others in recognition of everything they bring me. My background in a scientific sector (materials and elastomers) has allowed me to develop my skills at an international level and has, furthermore, given me an insight into other cultures.This is why I draw on the richness of human interaction for my personal and professional development.

  • What exactly is the role of Industrial Manager, R&D?

The core tasks assigned to me fall into two categories:Ensuring that the company’s developments comply with requirements, technical changes and the need for profitability.Steering industrial performance thanks to the people in the organization.

  • Which are your favorite aspects of your job?

Without doubt, that would be the challenges posed by the new projects and developments. We currently devise processes based on industrial agility. Each new project enables us to consolidate our knowledge, yet also to extend our boundaries.

  • Can you give me three words to describe your working day?

My working day is lively and punctuated by team discussions about:

- Measurements: N-1 performance indicators review
- Analysis: Internal/external technical support
- Decisions: Actions on initiated jobs to bring about improvements.

  • Which project(s) did you particularly enjoy working on?

They all have their specific characteristics and there is always a high degree of attachment to them, but I think this would have to be a project about an automotive thermal application we are currently finishing off which has involved us making some daring choices with a highly advanced and specific technology.

  • What training would you like to do next? And which conference/professional event would you like to attend next?

I’ve already embarked on some training, about the factory of the future, because it’s a question of the approach needed to develop collective intelligence in our future assignments. K (the world’s no. 1 trade fair for plastics and rubber) remains one of the industry’s high points for me. I’m always looking forward to it with great excitement. The only slight downside is that it doesn’t take place in our beautiful France!

  • Do you like working at LJT? Why?

I like what I do because I thrive on working in a family-owned company that gives me the space I need to fully express myself. I firmly believe that the company is forging ahead and that its ambitions are legitimate. The best proof of this is that when I look back at what we've done, I feel like saying "wow"!”

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20.11.2017

FDCA meeting


                                    FDCA meeting

 Le 8 novembre dernier, parmi les acteurs nationaux et internationaux du caoutchouc, LE JOINT TECHNIQUE a été récompensé aux rencontres de la FDCA, par l'intermédiaire de son Président, Monsieur Henri PAIN.LE JOINT TECHNIQUE, qui intègre l'innovation dans son management au quotidien et cherche à dévolopper en permanence la R&D par le biais de la veille technologique et de la formation, soutient la Fondation du Caoutchouc (FDCA).Cette dernière a pour objectif de mettre en place une structure de recueil de fonds destinés à soutenir financièrement des actions de recherche et de formation.Elle fait partie des cinq destinés à accompagner le développement de la filière caoutchouc en France et en Europe du Centre français du caoutchouc et des polymères (CFCP).

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23.06.2017

Fermeture estivale 2017


                                    Fermeture estivale 2017

Nous vous informons que nous serons fermés du 1er au 18 août inclus. Une permanence commerciale sera assurée jusqu'au 4 août.Pensez à anticiper vos commandes pour les livraisons sur juillet et à partir du 20 août.Toute l'équipe commerciale reste à votre disposition pour planifier avec vous vos besoins sur cette période!Bonne vacances!

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10.02.2017

LE JOINT TECHNIQUE s'équipe d'une nouvelle étuve de laboratoire


                                    LE JOINT TECHNIQUE s'équipe d'une nouvelle étuve de laboratoire

La tenue en température associée au vieillissement de nos produits, est l'une des problématiques majeures dans les domaines Industriel et Automobile.C'est pourquoi, dans sa recherche permanente d'amélioration et de collaboration avec ses clients, LE JOINT TECHNIQUE investi aujourd'hui dans un nouvel outil.Cette étuve va permettre de tester et de valider la résistance aux fortes températures des joints d'étanchéité grâce à la programmation et l'enregistrement permanent des cycles thermiques.

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13.12.2016

Merci de votre visite sur notre stand au salon Midest 2016 !


                                    Merci de votre visite sur notre stand au salon Midest 2016 !

Nous tenons à vous remercier de votre visite sur notre stand au Midest, le salon des savoir-faire en sous-traitance industrielle, qui a eu lieu du 6 au décembre 2016.Nous avons eu le plaisir de vous présenter nos innovations en matières de solutions d'étanchéité et de procédés de fabrications.Nous avons surtout eu l'occasion d'échanger avec vous sur vos problématiques d'étanchéité et de pouvoir vous proposer les technologies les plus adaptées à vos exigences.Si vous avez de nouvelles questions ou si vous souhaitez recevoir de plus amples informations, n'hésitez pas à nous contacter par mail contact@lejointtechnique.com.

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21.06.2016

As news


                                    As news

It has long been known to work with readable text , containing sense is a source of distraction and prevents focus on the layout itself. The advantage of Lorem Ipsum text as a generic ' From text. Of text. Of text.'

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