Christian Maier, Germany
Christian Maier GmbH has been supplying a HUGE range of rotary joints (or rotary unions) to the paper, printing, textile and chemical industries since 1925.
Maier rotary joints connect stationary pipes with rotating systems to enable heating and cooling of the rotating system (by hot water, cold water, steam or thermal oil,) or to provide services to the rotating system (hot water, cold water, steam or thermal oil, air, electricity) such as is used on plastic roto-moulding equipment.
Rotary joints are often considered unimportant when compared to the cost of a machine or line. But they are essential components for the performance of machines in which they are installed. Critical usage configurations require theoretical and hands-on knowledge with a variety of applications.
Christian Maier has more than 50 years experience in producing rotary joint. Christian Maier produce more than 1,000 versions of standard and custom-made rotary joints, from single passage to multi passage, from DN3 (1/8″) to DN 500 (20″). An extensive laboratory established for 24 hour, 7 day a week testing is used by Christian Maier to ensure their products run well from the very beginning.
Used by manufacturers such as Heidelberg, MAN Roland, König und Bauer (Planeta, Albert Frankental), Mitsubishi, Rockwell, Goss, Windmöller & Hölscher, Comexi, Bobst, Bielloni, Nordmechanica, Kusters, Steuer, BHS, Higel Kältetechnik, Goudsche, Voith, Sandvik, Bühler, Netzsch, Lehmann, Krones and Metso (amongst many others!), Christian Maier rotary joints have an enviable reputation for value for money and reliability!
AND NOW - Sensor ready. The demand for intelligent sensors for monitoring processes is constantly increasing. As a technology leader, Christian Maier has developed sensors especially for rotary joints to monitor critical parameters as close to the process as possible. True to the motto “We don’t do half measures”, Christian Maier has developed a completely new Series DS -
Available in January 2024 - which enables a simplified integration of Maier's sensors and combines the advantages of the DP and DX series.
For additional information, including catalogues and maintenance and repair details for Christian Maier’s rotary joints, go to our download section, contact Novsys or visit Christian Maier’s website at www.maier-heidenheim.de
Christian Maier DX and DXS Series Rotary Joints
Christian Maier H & HW Series Rotary Joints
Christian Maier DC Series Rotary Joints
Christian Maier DP Series Rotary Joints
- hot and cold water
- for thermal oil
- The small series can also be used for hydraulic oil and compressed air
- Stainless steel versions are available for use in the Food Industry or for agressive media.
- Low frictional torque (which is important for plastic foil production).
- A long service life.
- Easy field repair and maintenance.
- Both housing and elbow are made of brass and are beadblasted. The bearings are protected by 5 drain holes in the housing.
- Chrome steel rotor minimises wear for a long rotor life.
- Two ball bearings are used. These bearings are factory-lubricated and maintenance free up to 80° C. For higher temperatures, relubrication through an easily accessible grease point is possible.
- The internal mechanical seal is balanced and can be easily replaced with other sealing combinations, if your operating conditions change. Combination no. 1 is suitable for water up to 80° C, no. 3 for water and thermal oil up to 160° C, no. 4 is recommended for contaminated water and no. 5 is for air.
- The DP series 800 is used for thermal oil, and is equipped with heat-stabilised ball bearings, Viton O-rings and an axial shaft seal for additional bearing protection.
- Connection to the rotating pressure system is by means of:
- Standardised connection pieces with right-hand or left-hand male thread G/BSP (ISO 228) or NPT (ANSI)
- Sealing and centring face for gasket at end of thread
- K-flange and conical inner ring (DN 40 and larger)
- Fixed flange (F / DN 40 and larger), sealing with groove and O-ring.
- Radial housing connection is made with right-hand thread G/BSP (ISO 228) or NPT (ANSI), axial with right hand thread NPT (ANSI) and screw plug. For series 800, radial and axial housing connections are made with right-hand thread G/BSP (ISO 228). Axial thread connect with screw plug and gasket.
- Due to the low frictional moment anti-rotational devices are not required
Christian Maier DQ Series Rotary Joints
Christian Maier M Series Rotary Joints
Christian Maier DA Series Rotary Joints
- The advantages in you using this series include:
- This is an inexpensive design, since there are no bearings.
- These rotary joints are available in large sizes, up to DN 300 mm nominal bore.
- The seal rings are resistant to fraction, even at high pressures.
- The design A2 for a rotating inner pipe has a seal between inlet and outlet.
- This series is maintenance-free – No lubrication is necessary.