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STOP THE TEAR – MINIMIZE THE WEAR with MICKE 190-30 CC high friction, extremely wear resistant, and mechanically ultra strong ceramized organic woven brake linings (organo-ceramic brake linings), which provide extreme wear resistance + ultra mechanical strength with increased dynamic and static friction coefficients thanks to MICKE’s own specially-developed, special inorganic ceramizing process.


Our final customer, Société Nationale Industrielle et Minière (SNIM), is a 75% state owned company which employs 5000 permanent workers and operates the largest open pit iron ore mines in Northern Africa – Guelb el Rhein, Kedia d’Idjill, and M’Haoudat – near the city of Zouerate in the province of Tiris in Mauretania. After drilling and blasting, the iron ore  is loaded onto heavy-duty 200-ton Le Tourneau mine trucks by huge 26 m³ shovel volume P&H drag lines. The trucks haul the ore to crushing terminals, from which the ore is transported to the nearby concentration and enrichment plants via belt conveyor systems. The concentrated ore finally leaves by train, and is shipped over 700 km to the ore port terminals at Nouadhibou on the Atlantic coast. In 2010, SNIM produced approximately 12 million tons of hematite and magnetite iron ore, and still owns mining reserves for approximately 100 years of exploitation. SNIM is regarded the 7th biggest supplier of iron ore on the international market and had 1.1 billion USD of turnover in 2010.


  1. Material alternatives to preexisting organic, homogeneously mixed and hot pressed US made brake linings used on the 2250 mm diameter steel band brakes of the clutch and brake winches in the customer’s shovel draglines.

  2. Achievement of continuous, highest possible static and dynamic friction coefficients µ >= 0.5.

  3. Increase of mechanical stability of the bolted brake and clutch linings by at least 50% of existing values.

  4. Considerable increase of lining lifetime by a factor of two.

  5. Considerable reduction of mechanical wear of brake drums by at least a factor of two.

  6. Considerable reduction of specific pressure per mm² brake lining surface down to 75% of existing values.

  7. Considerable reduction of repair & maintenance cost on dragline winches.
  1. Brake & clutch linings were supplied in the following dimensions:
    405 wide x 32 thick x 273 mm outer arc length and 255 wide x 25 thick x 245 mm outer arc length, both for a winch brake drum diameter of 2250 mm.
  2. Brake and clutch linings are subjected 24 / 7 to the arid and dry Sahara desert climate, which features extreme day and night temperature changes.
  3. Working conditions in the vicinity of blast operations are very dirty and dusty, and draglines must operate 24 hours a day. Highly abrasive ore rock dust penetrates between brake linings and brake drums, wearing down both mating materials, which are further worn by brake and clutch energy input.

Organo-Ceramic Brake Linings

Plug & Play Exchange

Plug & Play exchange of existing organic, homogeneously mixed, hot pressed US made brake & clutch linings in favor of our MICKE organo–ceramic brake linings, woven brake & clutch linings type 190-30 CC featuring our worldwide unique inorganic hybrid binding system.


The friction linings in 190-30 CC quality feature an asbestos-free & non-cancerous technical, heavy-duty, woven covering made from Hi-Tec fiber compounds with non-corrosive metal core in the single yarns – all mechanically and chemically bound by special raw materials and performance coatings


The friction material covering features a primary, high-strength and wear resistant organic binding system of natural and synthetic resins and modifiers.

Advanced procedure

By our own developed special infiltration process the friction material receives in addition a secondary, inorganic ceramic binding system serving as a hybrid binder on the basis of our knowledge as an industrial ceramic parts manufacturer.

High friction values

Our friction material - based on a special covering with hybrid binding system - features multiple higher mechanical strengths, considerably higher static and dynamic friction coefficients, aluminum and ceramic industrial coatings considerably higher temperature resistance, considerably lower lining wear in comparison to and thus clearly outlasting homogeneously mixed & hot pressed linings or conventional organic woven linings.

hammer hard

The inorganic ceramization makes our friction lining MICKE Type 190-30 CC “hammer rigid” in the truest sense of the word.

Good distribution

Our inorganic industrial ceramic mix is distributed uniformly in three dimensions within the whole lining volume.

Due to its unique system characteristics as a hybrid binding system, the ceramization of our brake & clutch linings MICKE type 190-30 CC achieved the following advantages over the existing homogeneously mixed, hot pressed US made friction materials:

1. Extreme increase of the mechanical and chemical coherence of the yarn filaments within the MICKE woven lining by 300%

2. Considerable increase of pressure, shear and tension strength of brake linings by 250%. A direct effect is the 5 times higher rivet and bolt holding strength and complete absence of lining breakage and heat fissures, which were very common with the US made linings in heavy operation.

3. Considerable increase in temperature stability by a factor of 2.5 by more than 250°C (480°F), which then was raised to 550°C (1000°F).

4. Considerably higher heat strength, generating much lower friction fading under temperature and paired with much lower variation of hot friction coefficient at < 10%.

5. Considerably lower lining wear, resulting in a 3 times longer lining lifetime associated with considerably reduced investment cost.

6. Considerably higher dynamic and static friction coefficients by 20%, to be regarded as an additional safety momentum, µ dyn = 0.53, µ stat = 0.60.

7. Considerable increase of chemical resistance against aggressive media in the working environment or in direct contact with chemical influence factors.

8. Considerable decrease in the specific pressure on friction lining surfaces, down to 50% of the existing values due to the higher dynamic and static friction coefficients.

9. Considerable decrease of annual lining procurement costs due to lower amount of linings purchased.

10. Considerable decrease of maintenance cost due to longer lining exchange intervals

11. Considerable decrease of mechanical stress for the brake drums due to the use of much less aggressive MICKE linings + a lower heat energy input resulting in increased brake drum lifetime and associated lower investment, maintenance, and repair costs.

12. Considerable increase of draglines’ productivity due to shorter braking times and reduced lining exchange intervals.


The worldwide unique MICKE ceramizing process and protective coating may be applied to any friction material of any dimension or geometry on organic, sintered metal, or ceramic basis, provided the lining still has a residual pore volume. The process always leads to an increase in mechanical and chemical strengths, temperature limits, friction coefficients and lining lifetime.