News

The BL 4500 is the latest air inlet in the Black Line series from Tulderhof. The BL 4500 is made of high quality polyurethane foam and therefore well insulated. The BL 4500 has a unique V-shaped valve which creates a jet stream in minimum air flow. This way contributing to a better minimum air flow.

Since August 2017, our latest innovation the Black Line Tunnel, is available. The BT tunnel inlets are made of high insulated black polyurethane foam. The inlets can be easily glued together. This way, you can form groups of two or more inlets on top each other other. Learn more about the BT series at products

Tulderhof has developed an improved version of the arm for the X-Stream. The new arm is stronger and the phased opening (1-in-3 system) has been better synchronised. The 1-in-3 system means that just one winch motor can be used to open each inlet at three different times.

Each air inlet can, from now on, be combined with an air inlet frame. An air inlet frame with every inlet can increase the air flow by up to 8% and also forms the ideal finish for openings in sandwich panels. The air inlet ring is available in every width and height and can be used

A 3D-printer has recently been acquired at Tulderhof. We can now print our prototypes in-house, so our R&D department can work faster and more accurately. A 3D-printer produces three-dimensional objects using a digital “drawing” (computer-aided design files). The objects are created layer by layer. This process is part of the rapid prototyping industry.    

Tulderhof installed an Arburg Allrounder Golden Edition injection moulding machine in July 2016. Allrounder injection moulding machines can be used for a wide range of applications and are suitable for use in all common injection moulding procedures. Injection moulding is a moulding technique that uses thermoplastics, thermosetting plastics and metals with a low melting point. Injection moulding is one

                New managing director: Alex Kroonenburg From 1 September 2016 Alex Kroonenburg will become the new Managing Director of Tulderhof Ventilation. He already works for Tulderhof for 9 years as sales director and an advisor. Gjalt Van Hes, previous Managing Director and owner, wants to put his focus

New slats for better insulation in roof windows and ridge To increase the insulation value Tulderhof invested to improve the dark out slats. These can be delivered in EPP, which is a high quality plastic with very high insulation value.

              The Tulderhof combi-pressure system is a ventilation concept that creates an optimal climate for every type of free range house. The combination of the products and the right adjustments creates the perfect constant climate. Tulderhof has tested this concept for the last 3 years (since 2013) with enormous

Hühnerhof Terhorst GmbH & Co. KG in Walchum – Germany/ Lower Saxony, 26 November 2010 We visited Jürgen Terhorst, owner of the chicken farm Hühnerhof Terhorst in the Emsland district. In January 2010 Jürgen Terhorst installed three 120 x 20 m chicken houses with a capacity of 114,000 layers. They were built with Tulderhof products. We