Compared to the classic hydraulic solution, these electric drives offer numerous advantages in terms of robustness, safety, and operating convenience. They are also easier to maintain and run more efficiently to save cost.

More Efficient Bending With Parallel Shaft Gear Motors
More Efficient Bending With Parallel Shaft Gear Motors


The Swedish machine manufacturer Comeco has revised the drive concept of its rebar bending machines and equips this next generation equipment with electric drives from NORD DRIVESYSTEMS. Compared to the classic hydraulic solution, these electric drives offer numerous advantages in terms of robustness, safety, and operating convenience. They are also easier to maintain and run more efficiently to save cost.

Comeco produces rebar bending machines with different diameters for construction companies and construction machinery rental companies. Working with NORD DRIVESYSTEMS, the company has retrofitted a series of their rebar bending machines with electronic drives. These machines can bend rebar with diameters of up to 20 mm. Comeco is also planning to retrofit another series for diameters of up to 40 mm.

Comeco did extensive research to find ways to make their machines more robust and cheaper to build, without compromising on quality. For this new machine generation, all functions needed to be controlled by a PLC, so NORD proposed a drive with the NORDAC FLEX variable frequency drive. With its internal PLC, this motor-mounted, decentralized VFD offers precise speed control and positioning. Depending on their skill level and the thickness of the steel bar, operators of the bending machine can select from two speed settings. The 20 mm machine can also be programmed to handle two angles at a time and operators can go from one setting to the other via a convenient switch button. The configured parallel shaft geared motors deliver high torques with a very small footprint.

NORD delivered pre-assembled, pre-programmed drives, each with a ParameterBox that Comeco installs into the machine operation panel. Instead of the complex wiring of a hydraulic control system, the electronic drives only require a power connection. As soon as the start button is pressed, the machine actuates the set angle. After the bending process is complete, the PLC reverses the drive and returns to the initial position so the finished steel bar can be removed easily and safely.

Comeco’s new benders with NORD drives are easier to operate than the hydraulic machines that they had previously produced. The design is so intuitive that each customer or workshop can handle any troubleshooting themselves – although this is a very rare occurrence due to NORD’s reliable design.


The content & opinions in this article are the author’s and do not necessarily represent the views of ManufacturingTomorrow


With four production facilities in the Midwest, on both coasts, and in the South, NORD is prepared to serve you with some of the shortest lead times in the industry. We house extensive component inventory, allowing us to assemble and ship 25% of all standard product orders same or next day!

Other Articles

Being a Good Steward
Wastewater treatment is serious business. Gearboxes from NORD DRIVESYSTEMS help this small community process up to 15 million gallons of it daily, without fail, with no surprises.
One Sweet Machine
From candy to coffee beans, AD Process Equipment’s confectionery equipment applies coatings that make food taste better. NORD DRIVESYSTEMS helps them do so more efficiently.
American Steel
Faced with tight quarters on a gearbox application, Texas-based machine builder turns to NORD DRIVESYSTEMS for help.

Comments (0)

This post does not have any comments. Be the first to leave a comment below.

Post A Comment

You must be logged in before you can post a comment. Login now.

Featured Product

Model TR1 Tru-Trac

Model TR1 Tru-Trac

The Model TR1 Tru-Trac® linear measurement solution is a versatile option for tracking velocity, position, or distance over a wide variety of surfaces. An integrated encoder, measuring wheel, and spring-loaded torsion arm in one, compact unit, the Model TR1 is easy to install. The spring-loaded torsion arm offers adjustable torsion load, allowing the Model TR1 to be mounted in almost any orientation - even upside-down. The threaded shaft on the pivot axis is field reversible, providing mounting access from either side. With operating speeds up to 3000 feet per minute, a wide variety of configuration options - including multiple wheel material options - and a housing made from a durable, conductive composite material that minimizes static buildup, the Model TR1 Tru-Trac® is the ideal solution for countless applications.