Drive Technology for World Record with a coffee machine

Drive Technology for a World Record
The world's largest espresso machine produces 333 cups of espresso within one minute.

The challenge / the situation
A Swiss company that has been manufacturing coffee roasting and packaging plants and machines for about 30 years contacted Nozag with a quite unusual challenge. The company was developing a mega-espresso machine for its large customers. The challenge for the drive section was to be able to transmit a very high force with the highest speed possible. This was fundamental in order to prepare the coffee powder with a kind of stamp, to press it with the piston and subsequently to eject the used coffee. And all this in a very short time.

• High pressure for pressing
• Uniform lifting movement and parallel pressure distribution
• Very fast sequence of several operations
• Food grade and low-maintenance

The solution
Nozag’s drive unit complies with the specifications: about 2 kg of coffee powder can be processed within shortest time and used to brew about 10 liters of first-class espresso. Making espresso also implies the possibility to vary quantities, to modify the brewing and extraction process (time, temperature, pressure and coffee volume), and all this fully automatically. Nozag’s solution provides two screw jacks for the combined lifting/pressing movement while a bevel gear ensures the connection between the electric motor and the two screw jacks. Due to the high and above all uniform movement and pressure required, the two screw jacks are equipped with a double-thread trapezoidal screw and, for operation safety, with a duplex nut. This ensured compliance with the specifications, and the world’s largest espresso machine now brews 333 cups in a minute, which is the world record.

• Screw jacks mounted in parallel for the lifting/pressing movement
• Double-thread trapezoidal screws ensure higher speed
• Ball screw (KGT) ensures high speed
• Bevel gear with connecting shafts ensures the connection with the electric motor drive
• Food grade individual parts thanks to stainless steel design
• Robust and low-maintenance design

More details on the coffee machine

• Media release "SMM Schweizer Maschinenmarkt"

Products / Detailed information
Screw jacks are available from stock in various sizes and with a wide range of screws. They are ideally complemented with bevel gears and suitable couplings. We will be pleased to advise you at any time about the optimization of drive solutions.