A bespoke robotic handling cell has been retrofitted to a DMG Mori five-axis vertical machining centre at the Redditch factory of Optimal Manufacturing, helping the subcontract specialist automate the production of high-precision prismatic components and achieve reliable 24/7 unattended machining. Supplied by Whitehouse Machine Tools, the Tezmaksan CubeBOX robotic handling cell is unusual in that it exchanges components mounted in vices on pallets, rather than handling billets, castings or forgings directly.

Joint owners and directors Will Cooper and Tom Slimm selected this approach because many parts require tolerances of less than 10 microns. They believed handling individual components would not provide the repeatability needed, particularly where second operations were involved. Instead, workpieces are fixtured in vices mounted on zero-point pallets and loaded into a DMG Mori CMX 70 U five-axis machining centre.

Tezmaksan modified its CubeBOX Blues DR MAX system so that the three storage shelves, each holding four vice-mounted parts, could slide horizontally towards the robot and back again. This capability allows the 70 kg payload robot to safely access the lower shelves and handle the fixtured workpieces efficiently.

Commissioned in August 2025, the cell quickly proved its value when Optimal secured a large stainless-steel valve manifold order for an oil and gas customer. The company ran the system continuously for three months.

“It was ideal for automation,” states Cooper. “We ran the cell 24/7 for three months, unattended every night, allowing us to produce the parts economically while enhancing our reputation for short lead-time deliveries.”

Slimm adds: “With some machining cycles lasting well in excess of two hours, and our ability to gain 14 hours’ production overnight virtually for free, this type of easy-to-use automation is a big asset for any manufacturing organisation.”

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