Lock’s LSC 40 limit switch arrives at long-time partner Metrolina Greenhouses. Here System Engineer Jeff Woolsey shows the first unit - ready to install.







Jeff Woolsey, Metrolina Greenhouses, USA

"We still have such an antique - our drive is from 1963 and so it has been in operation for 56 years! That speaks for itself."








August Schlosser, Schlosser Grünerlei GbR, Germany

"We use Lock drives for natural ventilation systems. These are various types of ventilation flaps, insulated lifting windows and movable box lids."







Harald Bayer, Animal Welfare Stable for Pigs, Germany

Lock power drive, year of construction 1977









Gardening & Floristry Schlereth, Germany

"I am very impressed with the quality of Lock equipment and highly recommend it. Lock products are very long lasting and easy to install, but in case assistance is needed Lock’s technical support is great and always available."





Hans Lenselink, Head Grower and company partner at Multiflora Greenhouses, USA

"Side ventilation and roof ventilation are solely by Lock."









Bernd Sailer, Dairy farm, Germany

Lock power drive, year of construction 1976









SIXTUS Flowers, Austria

"Our drive has been running since 1968 - that speaks for Lock's quality. The drives are still running perfectly."








Gerhard Sander, Gardening Sander, Germany

Vegetable production China - 40ha greenhouse area









Haoyu, China

"All our turkey stables are up to date and offer our animals the best animal welfare. The lifting windows, the movable ridges and the fully automated roller ventilation protect the animals and allow the best climate in the stable."






Johannes Knäpple, turkey fattening farm, Germany

Lock power drive, year of construction 1966









Vegetable growing Schweiger, Germany

"47 years old and this winch does still its job perfectly!"









Burkhard Beier, Beier GmbH & Co. KG, Germany