XLDriveLine Screen drive system Van der Valk Horti Systems is introducing a new drive technique for screen systems: the XLDriveLine. It is well-known that cable-driven screen systems that are longer than 100 m are considerably less accurate. The traditional 3 mm steel cable just has too much stretch at that distance. That is why three screen systems are often placed in greenhouses with a gutter length exceeding 200 m. This is no longer necessary with the XLDriveLine. With this new technology the steel cable is largely replaced by a massive and stable steel shaft which retains top precision to a length of 150 m. So you can cover a 300 m greenhouse with just two screen sections without losing climate control. Long and strong Sustainable materialsPrecise to 150 m in length with thin, solid steel shaft instead of 3 mm steel cableOnly two screen sections required for a gutter length of 300 mStainless steel cable 7×7 (Ø 4 mm) at the reversing pulleysWire tensioners are standardly tted with plastic cable drums Economical More precision for the same priceSaving on materials like reversing pulleys and drive shaftsLess maintenance given extra strong and sustainable drive systemFewer brace sectionsDelivered in complete sections that are easy to join up KliMax XLDriveLine Special slide systemEffortlessly compensates for expansion and contraction of the greenhouse structureEnsures safe restriction of forces exerted on the greenhouse structureIncrease of light due to the smallest possible screen packageSustainable due to adjustment of a specially developed plastic in combination with aluminium housingWHY VAN DER VALK HORTI SYSTEMS? The only company in the world specialising exclusively in the development and production of ventilation mechanisms and screen systems Engineering and production are both in house Innovative systems with distinctive benets for growers Quick and reliable deliveries due to our modern machinery and large stocks Technical, commercial and project support provided by enthusiastic staff Quick and efcient mounting using unique, well designed and high-quality components System supplier since 1963 XLDriveLine: a prime example Installation To simplify the installation of the XLDriveLine, the system is supplied by Van der Valk Horti Systems in complete sections, which can be quickly and easily joined up. Van der Valk Horti Systems BV, Zwartendijk 73, 2681 LP Monster, The Netherlands, T +31 (0)174 21 22 23, F +31 (0)174 24 27 27, www.valkhortisystems.com infovalksystemen.nl DEVELOPER AND PRODUCER OF VENTILATION MECHANISMS AND SCREEN SYSTEMS V01-2016 CONTACT VAN DER VALK HORTI SYSTEMS OR YOUR GREENHOUSE BUILDER / INSTALLER FOR MORE INFORMATION. ValkScreenVision KliMax Strong brand names of Van der Valk Horti Systems StabiMax XLDriveLine GreenTop ValkTriplePlus Screen strength and gap differences Standard KliMax | compact 6 kg slide force No. of sections Prestress required Force on reversing pulley Calculated gap difference 10 50 kg 160 kg 8 mm 11 53 kg 172 kg 9 mm 12 56 kg 184 kg 11 mm 13 59 kg 196 kg 13 mm 14 62 kg 208 kg 15 mm 15 65 kg 220 kg 17 mm 16 68 kg 232 kg 20 mm 17 71 kg 244 kg 22 mm 18 74 kg 256 kg 25 mm 19 77 kg 268 kg 28 mm 20 80 kg 280 kg 31 mm * The theoretical values given above may deviate slightly in practice and are based on a section size of 5m. XLDriveLine | 6 kg slide force No. of sections Prestress required Force on reversing pulley Calculated gap difference 20 80 kg 280 kg 4 mm 21 83 kg 292 kg 4 mm 22 86 kg 304 kg 5 mm 23 89 kg 316 kg 5 mm 24 92 kg 328 kg 6 mm 25 95 kg 340 kg 6 mm 26 98 kg 352 kg 7 mm 27 101 kg 364 kg 7 mm 28 104 kg 376 kg 8 mm 29 107 kg 388 kg 9 mm 30 110 kg 400 kg 9 mm * The theoretical values given above may deviate slightly in practice and are based on a section size of 5m.