Our expertises

Conception

Lohr develops human and technical expertise which is constantly adapting to the latest technologies.

Designing solutions involves a harmonised sharing of resources and skills for the implementation of systems engineering. Our tactical and logistics vehicle solutions are considered as systems in their own right, acting with a “system of systems” environment.

The project platform enables our experts to agree on the needs expressed, the development of the product, production capacity, in service support and end-of-life recycling.

Whether in terms of innovation, development or adaptation, design is based mainly on:

The technical hub :

It designs and develops each product, ensures its maintainability and drafts the related documentation.
It takes into account the production capacities right from the development phase.
It conducts industrial validation and technical qualification via the development, monitoring and implementation of prototypes and first of series.
It correlates the results of the calculation department with the measurements made during the dynamic tests.

The calculation and simulation department :

It models the structures in finite elements.
It anticipates the behaviours of the structures by simulation, particularly the fatigue and the ballistic, anti-blast and anti-mine resistance of the vehicles, bodies and cabs developed.
It analyses the consequences of product definition developments after their industrialisation.
It calculates the resistance of the structures according to the life profiles of the equipment.

Production

The Lohr industrial tool is organised around five procedures centres :

Cutting

The cutting centre is dedicated to cutting and folding the steel sheets.

It is focused around:

laser cutting machines of different capacities,
folding machines whose tonnages range from 85 tonnes to 1300 tonnes.

This activity is supplemented by drawing, sawing and bending operations.

Mechanical

The mechanical centre machines the individual or series production components.

For this purpose it uses CNC turning and milling machines.

Welding

The welding centre assembles and welds the primary parts to make the finished products.

It comprises assembly workstations focusing on templates to ensure the repeatability of the process in terms of quality and productivity.

Implementation is highly robotised, offering great flexibility and high-performance welding whilst controlling the deformation of the manufactured elements and the tool operating times.

Paint

The paint centre is designed to apply surface protection to the primary components, subassemblies and complete vehicles.

It is configured to treat:

unit production in manual booths,
mass production via a semi-automatic production line.

Assembly

The assembly centre performs the final assembly of our products.

It is organised around different sectors:

The production of subassemblies (mechanical, hydraulic, electrical, pneumatic, bonding);
The integration of subassemblies on the assembly lines by product line;
Assembly lines organised according to lean manufacturing principles integrating digital production management tools (Manufacturing Execution System);
Workstations allowing personalisation and production of tailor-made products in the form of unit products or mini-series, on fixed workstations or on the production line.
The final integration of the mobile tactical and logistics systems.

Tests

Testing is essential at the design and production stages of our equipment. They allow us to guarantee their longevity and safe use. Since the beginning of the company, we have always been demanding to test rolling stock as well as more or less critical sub-assemblies.

Lohr Industrie has an internal department dedicated to the testing of the Carrier, Cristal and Modalohr products. This autonomy in terms of testing guarantees reactivity and adaptation during the different phases of product development:

Approval of materials and sub-assemblies in accordance with the standards and directives in force
Qualification of complete vehicles or supplier components under severe conditions of use
Design assistance for engineering offices
Consolidation of numerical models for structural calculations (recalibration between stress values calculated on numerical models and reality)
Expertise and determination of the origin of a defect reported by the after-sales service in order to improve the design.

We can carry out on-board tests on rolling stock in its context of use or on sub-assemblies in the workshop, on a bench:

Dynamic rolling of complete rolling stock with instrumentation (e.g.: rolling of a car carrier on an old landing strip)
Application of extreme loads on complete equipment or sub-assemblies (e.g.: verification of the resistance of an underride bar at the rear of car carriers)
Mechanical fatigue loading (several million cycles) of sub-assemblies on a test bench (e.g.: Cristal rolling stock)

We benefit from all the manufacturing means of the factory for the realization of test assemblies and specific benches:

3D design and modeling
Manufacturing of welded structures (cutting, bending, welding, machining).

We are equipped with a wide range of instruments allowing the measurement and recording of many physical quantities:

Hydraulic and pneumatic pressure
Efforts
Surface stresses
Displacement, speed, angle
Acceleration
Temperature
Voltage, current
Sound