JOSEF MACK GMBH & CO.KG

Our self-recoiling springs consist of a V-shaped base holder, to which a self-recoiling spring is riveted. Of course, the relevant carbon brushes match 1:1. MACK self-recoiling springs in holders with clamps provide the required carbon brush pressure. And: Our carbon brushes feature either an appropriate head hollow or head contact – exactly coordinated to the specific dimension and strength of the spring.

MACK tubular brush holders produced in numerous versions and with different insulation materials such as plastic or laminated paper. What does your application need? Our tubular brush holders are manufactured using draw brass or sheet profiles, and depending on the application can be produced with insulation, knurls, or other features in accordance with your requirements. The available versions and connection options can be found in our Carbon brush holder catalogue. Take a look!

The small slip-ring system in combination with the matching modular slip-ring system is our first choice for you for current and signal transmission in small spaces. With its low 16 mm height, the MACK small slip-ring system can transfer current up to 25 amperes per pole reliably. Its 15 mm high little brother is designed for 15 amperes.

Our flange holders can be fitted either directly into the machine housing or on brush rockers. What can we offer you? MACK flange holders offer a space-saving and inexpensive option for contacting carbon brushes to a collector. The spring pressure on the carbon brush comes either from a coil spring or a rocker. We can realise connection options for you using very different thread and plug connections.

Our brush rockers are oriented to your system requirements. When you are looking for long term quality: You have come to the right place here at MACK. The MACK brush rockers are available in many different dimensions, designs, and pole numbers, and depending on the application can be combined with flange holders or multiple shaft holder lines. From small motors to large direct-current machines or wind turbines: Our brush rockers are in use in numerous fields of application.

Slip rings provide the basis for rotating current transfer and all its demanding applications. Which challenges can we meet for you? In combination with our slip rings, brush holders fitted with carbon brushes ensure that the current to be transferred is collected. Thanks to their increased vibration resistance, solid-cast slip rings can withstand high mechanical and electrical loads. These are available from MACK in many different versions, many of which are even available from stock.

Our products are unseen aides installed in many electric machines and motors: from huge plants to compact hand-held devices. Are you looking for a entirely specialised solution for current and data transmission? We produce the right carbon brushes and brush holders for the broad range of applications which characterises the field of electrical and plant engineering. This includes filling and packaging machinery, waste water treatment plants or revolving door systems, just as much as the manual electrical appliances which provide professional and hobby craft workers with reliable service. And these are a just a few examples. As we are system suppliers, you can be absolutely sure: MACK supports you throughout the entire development process. MACK supplies first-class OEM quality and durable replacement parts from in-house production. MACK makes your ideas come true!

Stripping, smoothing, polishing, grinding: Good contact is essential for optimum transmission. We offer our customers lots of helpful material here. Our pumice rods help you to adjust the run surface of the carbon brushes exactly to the radius of the contact surface, and to produce the required degree of roughness. In this way optimum conditions for the best run results can be created right from the beginning. Whether it's solid grindstones in different grains or flexible rubber-bound polishing rods: At MACK, you can enjoy a rich assortment of versions, sizes, and materials for the smoothing and polishing of slip rings and collectors.

Checking is better: with our compact measuring unit, you can detect the wrong brush pressure and correct it immediately. The wrong brush pressure is often the cause of serious problems in motors and generators. This includes brush wear that is too high or irregular, sparking, high commutator or slip ring wear, or carbon-brush breakage. Compact, light, and easy to handle: with our brush-pressure unit, you can measure the carbon-brush pressure precisely and in a matter of seconds. The large display provides an immediate reading from 0.1 to 50 N.

Useful support: our brush-wear warning unit makes it possible for you to monitor carbon-brush wear precisely. Our brush-wear warning unit takes over the monitoring of the wear of your carbon brushes electronically – automatically and reliably. The warning is produced either through a contact in the carbon brush or by means of a micro switch on the holder. Your maintenance intervals can thus be planned, and you profit from major cost savings. The unit can be used both for alarm circuits which are linked to the machine potential as well as for potential-free alarm circuits.