Inventory optimization

April 6, 2016 1305


PK Oem parts is a respected supplier of spare parts since 1981 within a niche market of shipping and power plants. Sales and distribution of high quality technical parts is done on a global scale. PK Oem parts stands for high quality, fast delivery and competitive prices. PK Oem parts operates from the headquarters and two warehouses in Dordrecht with about 20 employees.

A prior study performed by Groenewout identified an opportunity to reduce the stock. Therefore, PK Oem asked Groenewout to minimize the stock levels while maintaining the high service level demanded by its customers.

Using statistical analysis the demand characteristics for the shipping and power plants markets where assessed. Based upon the demand characteristics and the service levels, the min-max stock levels optimized. Furthermore, a strategy was developed on how to update the stock-levels on a strategic, tactical and operational level.


  • Potential stock reduction of about 25%, while maintaining the current service level;
  • Advice on how to update the optimized stock levels within the ERP system, based upon the forecast error and demand volatility;
  • Implementation of a dashboard with stock and service level KPI’s connected to a balanced scorecard.


  • Rob Besten en Tim van Lohuizen supply chain adviseurs bij Groenewout via  @Consultancy_nl  4 months ago
  • Welkom nieuwe collega's: Tim van Lohuizen en Rob Besten. Specialisaties: modelleren, operations research en logisti… 5 months ago
  • Per 1 april '19 neemt Alain de rol van Managing Director over van Mari van Kuijk, die sinds 2007 deze rol vervulde.… 5 months ago
50 years of experience

Consulting firm with over 50 years of experience.

European database

Availability of a European logistics database with benchmark figures on transportation and warehouse costs.

Network design

Full scope expertise on network design, as well as warehouse design (conceptual layout, logistics - and storage equipment) and logistics building design (engineering and investment calculations).

Implementation support

Ability to support implementation of new logistics concepts (70% of Groenewout revenue is with existing customers in follow-up/implementation projects.

Extensive knowledge

Extensive operational knowledge, hands-on, pragmatic and bottom-up approach.

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