Case Study: Itho Daalderop achieves 15% inventory reduction and full availability control with Slimstock's Slim4

Itho Daalderop set the foundation for order-driven production with slim4

Itho Daalderop, a leading producer of heat pump systems, shifted from a make‑to‑stock to a make‑to‑order model and faced the challenge of keeping roughly 6,000 SKUs from 600 suppliers available within a 14‑day delivery window. Their ERP could not manage lifecycles, dynamic safety stock or variable lead times, so they partnered with Slimstock and implemented the Slim4 inventory optimisation solution to gain control of component availability.

Slimstock’s Slim4 introduced lifecycle management, dynamic safety‑stock planning and purchasing forecasts to enable earlier ordering and better supplier coordination. As a result, Itho Daalderop reduced stocked components and spare parts by about 10–15% (15% cited), eliminated excess inventory, removed the need to hold finished goods (cutting related logistics costs), and achieved more reliable, flexible production despite longer supplier lead times.

Itho Daalderop

Kerst Algera

Director of Operations