enEnglisch
BAM for industrial minerals
energy and grinding efficient ball mills through mill INTERNALS
The BAM ball mill for industrial minerals is designed to be particularly efficient thanks to our process know-how. This is because the efficiency of a mill depends on its internals. All parts of the mill, the diaphragm, the shell lining and the ball charge, have been continuously developed in-house for nearly a century, which is the basis of our expertise.
The BAM receives additional flexibility through its adapted design. Depending on the requirements, we offer variable bearings and drive options. The grinding media is also selected according to the material, mill design and size. Because we understand that the setting behaviour of your product has an impact on both the process and further processing. Therefore, the choice of the grinding media is essential to keep production costs low.
The dimensioning of the mill can be adapted to the installation site. Depending on the desired product fineness, we offer sizes for throughputs of 1 -100 t/h.
In the realization of special requirements, we inspire our customers by mastering individual challenges.
Technical details
- Lateral drive and direct drive
- Mill sizes 15 kW - 2000 kW
- Low maintenance pendulum roller bearings
- Variable speed adjustment
- Mill dimensioning (L x D) according to application requirements
- Dust-free material feed through feed screw
more than
100 ball mill
installations worldwide
Roller Design
Cheek Plates
Bearing Design
Christian Pfeiffer ROPs use cylindrical roller bearings for sizes ≥ ROP-9-14 due to their lower weight and compact design. These bearings support lower manufacturing costs and efficient operation with oil circulation lubrication. This design maintains lower temperatures and extends bearing life, while the compact housing accommodates roller misalignments during operation.
Bearing Housing incl. Axial Guidance
The bearing housing compensates for roller misalignment with fixed and loose bearing housings that allow axial movement. This design uses the same bearing housing for all bearings, simplifying maintenance. The axial guidance system's innovative design ensures the rotary point is protected, maintaining alignment during pressure build-up and operation.
Functional Description of the Hydraulic System
The grinding force in the ROP is managed by a hydro-pneumatic pressure system with hydraulic cylinders and nitrogen accumulators. The system adjusts pressure automatically based on material feed and nitrogen compression. This design allows easy maintenance, compensates for roller inclinations, and ensures proper alignment during operation.
Machine Frame
Christian Pfeiffer's frame design focuses on reducing weight and enhancing user-friendliness. Open windows in the frame allow for quick checks of critical maintenance areas. Foundation elements enable easy connection with anchor bolts, eliminating the need for additional base frames.
Drive System
The drive system, designed with a service factor of at least 2.0, includes a shrink disc, manual coupling, planetary gearboxes, and a cooling system. Safety features like a mechanical coupling with a tripping torque of 2.5 times the motor torque and a Cardan shaft ensure protection against overload and allow easy maintenance and disassembly.
Feed Chute incl. Gates
The feed chute has dual slide gates to regulate material flow onto the rollers and control the feed near the grinding area. An integrated exhaust system manages grinding dust, preventing process variations and ensuring consistent operation.
Machine Housing
The enclosed grinding area prevents dust and material from escaping. The housing absorbs roller movements and includes large doors for easy wear checks without disassembly. Sealed doors and windows prevent dust from accelerating wear on the guiding system.
Special Tool - Welding Fixture
A designated space next to the inlet chute allows for the installation of a welding apparatus for on-machine re-coating. This tool ensures an optimal welding angle, enabling effective maintenance and extending the roller surface's lifespan.
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Precise analysis for the perfect result.
We analyse your product to design the most efficient grinding plant.
- Technology center for material tests
- Laboratory for material analysis
AT YOUR SITE. WITH SERVICE EXCELLENCE FOR NEW AND EXISTING PLANTS.
Efficiency in grinding is our heritage and our future.
Since 1925.
Making grinding processes as efficient as possible is a science in itself – one to which we dedicate our entire expertise and spirit of innovation. From the invention of the first MONOBLOC diaphragm to the technical fine-tuning of the separator QDK. How we became what we are today.