Dorner offers the Edge Roller Technology (ERT 250) conveyor that uses rollers to provides beltless, zone control for pallet and tray handling.

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Dorner Ert 250 Conveyor

Dorner’s ERT 250 conveyor’s open design eliminates concerns of small parts or screws dropping into rollers and causing conveyor damage or jamming. It is ideal for applications calling for pallet or tray handling; no- and low-back pressure accumulation; medium to heavy load assembly automation; and cleanroom applications such as medical product or device manufacturing, assembly, packaging, and more.

The rollers are driven by a patent-pending, energy efficient linear gearbox that gives customers added flexibility with motor positioning and zoning. This allows for zone and slip roller operation. Simply removing a lower gear creates independent zones. The non-contact zone control provides simplified traffic control that eliminates pallet stops and costly pneumatic valves. Conversely, slip rollers can be used for full length runs with conventional pneumatic pallet stops. The rollers are easily accessible and can quickly be replaced without affecting the remaining portion of the conveyor.

Technical specifications of the new ERT 250 include:
Widths 120 mm to 960 mm wide

38 mm diameter rollers on 50 mm centers

Loads up to 250 pounds per pallet or tray

Loads up to 15 pounds per roller

150 mm minimum long tray

Speeds up to 30 m (100 fpm)

Aluminum frame with two T-slots

Energy efficient brushless DC gearmotors and controllers; motor controllers use Ethernet IP for easy communication


Automation modules
     Navigate 90° and 180° corners

    Lift and transfer

    Lift and locate

    90° pusher

Three transportation modes    

    Non-contact accumulation

    No- or low-back pressure slip roller accumulation

    General transport

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