In Eltville am Rhein, Jean Müller develops and produces around 40,000 components for distributing, controlling, securing and measuring electrical energy in low-voltage networks. For handling particularly heavy punch-press tools for manufacturing a new product series, the family-run business was initially looking for a new transport cart. In the end, however, the company acquired a complete die-changing system from Roemheld, comprising racking and a lifting cart with integrated docking system and radio remote control. Similar technology is available in Britain and Ireland through Roemheld UK.

A the heart of the joint solution is the manoeuvrable, electrically-driven Roemheld RWA 4000 die-changing cart, which is capable of carrying a load of up to 4 tonne. It has a die-changing table with integrated hydraulic ball bars and a pull-push system that facilitates automatic insertion of the dies on a press bed.

During transport, the hydraulic balls in the cart table are lowered and, consequently, the die is prevented from slipping. A safety circuit ensures that the RWA 4000 only moves when the ball bars are retracted. Removable safety bars at the front and sides of the support surface additionally secure the die. Users can control the cart from a central panel on the drawbar, on which a multi-function display sits. Alternatively, employees can adjust the most important cart functions remotely via the radio control.

Jean Müller’s new system has been in continuous three-shift operation since the spring of 2022, the year that the company celebrated its 125th anniversary. The distances the dies have to travel to the presses is now shorter, resulting in a time saving of 15 minutes for each changeover, which happens up to three times per shift.
For further information www.roemheld.co.uk

Bobcat, a manufacturer of compact construction equipment, is increasing production capacity at its Gwinner, North Dakota facility, with the help of AP&T Group. A new, highly automated tandem press line, which recently began production, will more than double press production capabilities, reduce energy consumption, lower noise levels and improve the forming of complex sheet metal parts.

“This investment will provide us with new capabilities and efficiencies in our metal stamping operations, and it aligns with our commitment to innovation, sustainability and continued investments in our manufacturing footprint,” says Mike Ballweber, president of Doosan Bobcat North America.

The new line includes AP&T’s energy-efficient servo-hydraulic press and automation. Furthermore, the assignment includes line integration, operator training and support.

“Bobcat is one of the first companies in North America to invest in the future by implementing this automated solution using our new press technology,” says Dr Christian Koroschetz, chief sales officer at AP&T Group. “This investment also supports Bobcat’s interest in pursuing sustainable, energy-efficient manufacturing solutions.”

The new AP&T servo-hydraulic press is 70% more energy efficient than a conventional AP&T hydraulic press. According to the company, the press also provides increased productivity and superior forming capabilities, which enables the pressing of more intricate and complex designed parts, along with shorter cycle times.

Bobcat first became aware of the new press technology through a relationship with Wisconsin-based TCR Integrated Stamping Systems, an equipment manufacturer consultant and system provider for the metal-forming industry.

“While visiting AP&T in Sweden, I was introduced to their latest automation breakthrough and knew it would provide a significant advancement for Bobcat,” saysTodd Wenzel, president of TCR. “In addition, AP&T demonstrated their new servo-hydraulic technology.”
For further information www.aptgroup.com