At Hop Metaalconservering in Barneveld, ESTEE installed a new pretreatment tunnel. The tunnel is designed for long and heavy parts: workpieces up to 12.6 m long, 2.5 m high and 3 tons each.
At a glance
- Customer
- Hop Metaalconservering
- Location
- Barneveld, the Netherlands
- Year
- 2024
- Installation
- Step & go pretreatment tunnel with 4 stages
- Workpieces
- Up to 12.6 m long, 2.5 m high and 3 tons each
- Capacity
- Up to 10 beams per hour
- Construction
- Polypropylene

Step & go in four stages
In a step & go tunnel, the beam with workpieces moves step by step through the successive zones of the pretreatment. At Hop, every beam passes through four stages, with a capacity of up to 10 beams per hour.
Built in polypropylene
The tunnel is built in polypropylene, a material that withstands the chemical environment of a pretreatment.


Many thanks to Jan Hop and his team for their trust and the great collaboration.
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