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The ETR251/46 gear rack drive is a low-maintenance, purpose-designed drive for starting and closing swinging-atmosphere vents in Venlo-type greenhouses. The mixture of TR251/46 gear rack drive and aEP RW electric motor gearbox plays a part in an optimum greenhouse climate thanks to accurate positioning of the atmosphere vents.

The self-supporting TR251/46 gear rack drive comprises a zinc-plated C-profile with an integral compact equipment rack drive unit. The TR251/46 gear rack drive is mounted to a greenhouse gutter using the item clamp-installation forks or bows.

Thanks to the apparatus reduction stage (i-2.76) and the pinion of the TR251/46 equipment rack drive, the drive torque is effectively converted into a maximum rack force of 4200 N. Track rollers in the C-profile and information blocks ensure stable expansion and retraction of the rack. The drive shafts of the TR251/46 equipment rack drive have lengthy, flat-sided journals. This can help you fit drive shafts (planetary gearbox prefab) fitted with weld/sleeve couplings or chain couplings, after the house units have been mounted. The drive shafts are locked in the couplings by the accompanying shaft retaining clips. The TR251/46 gear rack drive is simple to maintain.

A ETR251/46 equipment rack drive with other C-profile lengths and rack lengths is on request.

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