BOLLHOFF SNEP

BOLLHOFF specializes in the manufacture of complex machined fasteners: special washers, nuts, clips, hydraulic fittings and precision machined parts.

The company uses many modern CNC turning and threading machines, including a 10-axis machine for turning and milling parts.

Its customers are mainly in the aeronautics sector, in France and abroad.

BOLLHOFF SNEP in 3 figures

9,600,000

pieces per year

1200

different items
manufactured each year

135

employees

Expectations

Strongly involved in the very demanding sector of Aeronautics, the BOLLHOFF company wanted to :

Improve the customer service rate (On Time Delivery),
To follow with precision the Work Orders in Subcontracting,
To control more precisely its lead times of pieces,
Facilitate internal communication through the use of a common load monitoring tool.

Production produces many different references, with very diverse routing trajectories. We needed a tool capable of managing more than a hundred different queues, geographically distributed in about twenty cells.

Solutions

Due to the characteristics of the flows and the objectives targeted, a Conwip pulled flow carried by a SmartWip® digital display board was chosen.

The digital display solution is:

coupled with the ERP for the creation and automatic progress of the WO,
Accessible in logistics, in the workshop and in the offices,
detailed for each queue for precise management of the load and work in progress.

The WOs of the SmartWip® panel automatically advance from cell to cell by synchronization with the ERP.

Within a cell, it is the team leader who keeps the hand to assign the work to an operator or to a precise machine, and this in a coordinated way with the Supply Chain which follows the customer relationship.

Each sector (Control, Supply Chain, Logistics, and each production workshop) has its own screen, allowing a personalized display of the flow and work in progress.

Project approach

The project was carried out in four steps:

Field diagnosis associated with a training of the Steering Committee to the Conwip® Pull system approach, to ensure that the method was well adapted to the context of the workshops,
Optimal dimensioning of the Conwip loop by our teams and parameterization of the SmartWip® control panel, including interfacing with the ERP in conjunction with IT.
Training of 126 people (i.e. all the teams, including administration and maintenance) in the Conwip method to explain the changes in flow management and to allow everyone to become involved in this new philosophy.
Verification of procedures and Go Live.

Thanks to the training, the teams were very active in the adoption of the solution.

Results

The main results of this Digitized Pull-Flow project are as follows:

53% reduction in work-in-process and crossing times,
Better communication of information between Supply Chain and workshops.
Improved OTD on all products.

“This shows that mathematics and digitalization are precious aids to efficiency gains if they are at the service of communication and the participative approach!” Blaise Perreton, Production Manager.

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