Reliable gears: the basis for continuity in the cement productionIn the cement industry gears play a crucial role within the production process.

Bierens manufactures reliable high tech gears for the cement industry that meet

the often extremely high standards.

Gears are a primary component in kiln drives, separators, crushers, screens,

gearboxes, milling facilities, fans, mills, elevators, ball mills, blowers, conveyors

and other applications.

The gears already start turning in the beginning of the production chain: the

excavation of limestone in the quarry with heavy excavators, after which the rollers

for crushing the limestone and other raw materials are activated before the

material is sent to the cement kilns. For the calcination of cement clinker usually a

rotating oven is being used. Both a rotary kiln and a vertical shaft furnace contain

moving parts whose accuracy and reliability are a requirement to ensure and

optimize the production availability. Everywhere where it should keep running, you

can rely on the gear technology and support of Bierens.

Bierens Companies consist of: Bierens Machinefabrieken B.V. in Tilburg / the Netherlands and Defawes N.V. in Ghent / Belgium.

Bierens gears for the cement industry

Bierens designs, produces, revises and reconstructs

Bierens Companies, founded in 1880, has

become the gear specialist for over 70

years. Bierens has become the unchallenged

market leader in gears, gearboxes,

mechanical drives, special machines and

overhaul work. For many years Bierens is

certified for NEN-EN-ISO 14001 and 9001

and manufactures prototypes and supplies

large and small series and products also for

the cement industry, from a custom made

gear to large crown wheels for cement kilns

or SAG mills.

Highest precision pinion for the cement industry

Defawes, the subsidiary of the Bierens Group

in Belgium, is an authority in the field of

unique gearboxes, high quality maintenance,

service-oriented after sales and pinion parts

supply.

Recently, Defawes has modified a highest

precision pinion for the cement industry

(module 34, pitch diameter 1,462, weight

8,300 kg). The quality of the final result with

a deviation of the pitch diameter of quality

DIN 2 is unequalled worldwide!

The years of experience and technical

expertise make that Defawes has become a

valued partner for the cement industry,

mining industry, steel industry, paper and

sugar factories.

GEAR TECHNOLOGY OF BIERENS

Focus on precision and quality

• Highest precision in this business through our unique 5-axis milling technique; which has proven its sustainability in the maritime world and steel industry.

• Standard quality 6 (AGMA 12) and ‘grinded’ quality 3 (AGMA 15); less wear, less heat development, less consumption.

• Certificates: NEN-EN-ISO 14001 & 9001.

• ‘State of the art’-quality control:- magnetoscopic research;

- ultrasonic inspection;

- x-ray research;

- fully dimensional and report of

teeth measuring.

Focus on markets, products and supplies

• Complete delivery program for ball mills and rotary kilns: segmented engineered gears with very high precision, tailor made to your application needs,running wheels, axles, spiral cones, straight gears and support wheels.

• Virtually unlimited modules (45 and more) and dimensions for our segmented gears.

• Designing and constructing of custom made gearboxes. Longest lifespan by highest quality gears.

Focus on engineering

• Own engineering services for optimizing the power transmission: new tooth forms for longer lifespan and more power transmission such as the grinded closed herringbone gear and s-gear (average 20% more power transfer than comparable cyclopaloid bevel gear).

• Grinding on site of existing crowns, combined with delivering a customized pinion for doubling of the lifespan.

• Very extensive possibilities for re-engineering: - own design;

- fully digital measurement;

- spectroscopic definition of the

original material specifications.

• Maintenance or revision of every type and brand of gearbox.

Focus on cement industryMain applications of our products in

this industry:

• large crowns for rotary kilns and

crushing and mixing mills;

• cone wheels for cone crusher;

• pinions to power the mills and ovens;

• gearboxes for the drive of the mixing

and crushing machines.

Bierens Companies consist of: Bierens Machinefabrieken B.V. in Tilburg / the Netherlands and Defawes N.V. in Ghent / Belgium.

Bierens Machinefabrieken B.V.P.O. Box 4028, 5004 JA TILBURG (NL)Ringbaan Noord 189, 5046 AB TILBURG (NL)T +31 13 5360025 | F +31 13 5435550E info@bierens.com | I www.bierens.com

Subject to technical changes. All rights reserved. Changes, reproduction and copy pictures, even as a summary, require the explicitly written permission of Bierens. With this release, all previous versions are due. The most up to date information about the Bierens technology and our production program is available through our website www.bierens.com.

2014.E.CM.2

www.bierens.com | Bierens on LinkedIn: http://bit.ly/bierenslinkedin

Bierens: focus on the customer

The Bierens Group offers the flexibility of a

SME with the worldwide coverage and know-

how of a major player. In short, the ‘one stop

shop’ for all your transmission issues.

The Bierens Group operates globally with

production facilities in Europe, Brazil and

China. We supply worldwide: directly and

through an extensive network of selected

representatives.

BY APPOINTMENT TO THE COURT OF THE NETHERLANDS

ISO 9001 & ISO 14001