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Case packer’s precision control a function of its gearboxes

High-efficiency, low-backlash gearboxes deliver precise actuation on this servo-controlled case/tray packer at speeds to 45 cases/min.

Custom input adaptors are among the features that distinguish the new gearboxes.
Custom input adaptors are among the features that distinguish the new gearboxes.

The Axiom IM Series of case/tray packers from Douglas Machine deliver speeds to 45 cases/min with servo-controlled precision. The servo motors are from Rockwell.


Recently, Douglas began specifying a servo gearbox from Lenze to perform the task of changing the servo motor’s rotary motion to linear motion, which permits actuation on the machine. Depending on the application, an Axiom machine could have on it as many as 15 motor/gear box pairs. The gearboxes are made with custom input adaptors made specifically for Douglas, says Douglas engineer Annamalai Pugalumperumal.


“We looked at Lenze’s standard offering of gearboxes, but they didn’t really fit right,” says Pugalumperumal. “It looked odd, for one thing, but it was more than a matter of looks. The input coupling part was sticking outside of the gearbox itself. So in mounting it against the conveyor side frame, the gearbox would have been protruding way outside. Together with Lenze, we designed the input coupling really flush with the gearbox.”

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