Maerz Ofenbau AG. Lime Kilns. Worldwide.
We are driven by fire. Back in the sixties our engineers built the first Maerz lime shaft kilns with a lot of passion, thus laying the foundation for our success. Thanks to numerous innovative milestones we were able to strengthen our position as world market leader.
In so doing we demand the highest standards of quality from ourselves. This goes down well with our customers: Maerz kilns are in operation in over 600 plants in more than 60 countries worldwide. Our continued success over more than half a century is built on a simple common denominator: Passion. It drives us to improve even further, every day.
As the world’s no. 1 lime kiln manufacturer, we could just sit back and relax. Not us. We want to outdo ourselves – for our customers, whom we thank for our success.
To achieve this, no effort is too great.


April 2016 issue of “Insight Lime” published

Challenging projects

Newsletter_2016_04Mastering challenging projects is one of the key issues for success in our business.
In this edition of “Insight Lime” we introduce you to a variety of challenging projects we have either already successfully completed or which are under execution right now.
Let’s take the Sibelco project as an example: It is really not our daily business retrofitting an existing lime kiln by preserving its outside steel structure and inserting an entire new kiln into the kiln shafts. This challenge not only kept our engineering department busy, but also required a reliable partner for erection of the kiln. We did it!
Equally challenging was our turnkey project for Schaefer Kalk in Germany: a new Maerz PFR kiln replaced two old mixed fired single shaft kilns. Here, the challenge was not only to keep the existing foundation as well as the charging system, but also the extremely restricted space for erection in this brownfield job. Another project we completed on schedule and within budget.
Time is the main challenge we face for the erection of the two kilns for Chememan in Thailand. Erection progress is extremely fast and we look forward to commissioning these kilns very soon.
Mastering challenging projects requires precise and efficient work. Genuine Swissness.
As usually, reports on recently implemented lime kiln projects and a selection of recent orders are complementing our “Newsletter”.
» PDF Download


Sibelco Australia Limited entrusted Maerz with the conversion of the existing Cimprogetti Twin-D 85 Lime Kiln in Galong (New South Wales, Australia) into a Maerz PFR Double Shaft Lime Kiln Type E4. Maerz was chosen by Sibelco Australia Limited as the key contractor for the supply of engineering, material, technical assistance and commissioning to revamp the existing vertical kiln.
The Maerz E4 PFR Kiln has a capacity of 275 tons per day. The lime kiln is equipped with a brand new coal firing system and a new control system designed by Maerz. The coal dust is delivered from Sibelco’s own local grinding plant; the limestone at a grain size of 40 to 80 mm is supplied from Sibelco’s own quarry.
Every project is unique. In the case of this project, one of the challenges was to ensure the adherence to Australian standards in all fields. The task was to reuse the existing steel structure, shafts, skip and blower house with existing blowers and baghouse. Maerz integrated a brand new coal firing system, kiln inlet and discharge table, refractory lining and a Simatic PCS 7 control system according to the Australian safety requirements.
Sibelco and Maerz started the project with a kick-off meeting in April 2014 in the facility in Galong. The first job was to take measurements of all the physical structures of the existing Cimprogetti kiln, always taking into consideration, which parts could be reused and which ones needed to be replaced. Wherever possible, Maerz attempted to apply its proven standard solutions of system and equipment design to the new kiln. Wherever necessary however, tailor-made solutions were developed to suit the requirements of the particular situation.
In April 2015 the installation on site started – only 12 months after the kick-off meeting. Sibelco’s contractor team revamped and installed the equipment in the previously prepared kiln structure and kiln shafts step by step.
After both engineering and equipment had been delivered on time (the challenging time schedule was met at all times), the new E4 type rectangular shaft kiln was successfully commissioned and put into commercial operation recently.
The converted new Maerz Lime Kiln started to produce at a consistent quantity and quality after a project phase of only 18 months. The unwaivering cooperation between the project teams was the key factor for the success of this project.


Mexicana de Cobre S.A. de C.V. placed an order for a second kiln for their existing lime plant in 2012. We reported about this order in our “Maerz News” of December 2012. In order to increase the plant production capacity, another F2S type Finelime Kiln, producing up to 400 tons of quicklime per day with a limestone grain size between 15 and 80 mm, was installed and commissioned successfully by the end of 2014.
The EPC contract for the installation of the kiln had been assigned to thyssenkrupp Industrial Solutions Mexico, formerly Polysius Mexico. Within this scope Maerz was entrusted with the supply of engineering services, license, knowhow and key equipment for the kiln, such as refractory materials, process air blowers, the electrical hard- and software, suspended cylinder and more. Furthermore, Maerz provided its expertise services in erection supervision and commissioning.
Since the beginning of commercial operation right after commissioning, the kiln has been producing lime continuously and at very high capacity in order to live up to the demand of the product. The kiln has operated reliably throughout the entire warranty period and is still doing so to everyone’s satisfaction.


As we reported earlier in our 2013 edition of “Maerz News”, Schaefer Kalk GmbH & Co. KG of Germany entrusted Maerz with the supply of a new 500 ton per day PFR kiln in their Steeden lime plant. Maerz was chosen by Schaefer Kalk as the turnkey contractor for the engineering, supply, erection and commissioning of the new plant.
Together with its suppliers and sub-contractors, Maerz successfully overcame the challenges of implementing a new kiln and its auxiliary systems into an existing plant, respecting the latest and most stringent protection and safety requirements for kiln control.
The new R3S type circular shaft kiln, featuring both a gas and a solid fuel firing system, was successfully commissioned and put into commercial operation recently. It is performing and producing lime quality as stipulated in the contract.


As we reported earlier in our October 2015 edition of “Insight Lime”, Chememan Co., Ltd. of Thailand entrusted MAERZ with the supply of two additional kilns for their lime production facility in Saraburi, approx. 120 km north-east of Bangkok.
Kiln no 1 refers to a Maerz E5 type PFR lime kiln with a capacity of up to 300 tons of lime per day. Kiln no 2 refers to a Maerz H4 type HPS kiln with a capacity of 200 tons of hard burnt lime per day. The HPS kiln will be the first hard burning lime kiln of its kind in Thailand.
Both kilns can be operated with coal dust or lignite dust as fuels. The coal will be ground by Chememan’s own and recently installed coal mill, as short supply distances are very important for Chememan. The arrangement of the limestone quarry, the coal grinding, lime burning as well as the lime conditioning plant on the Chememan facilities have been optimised in this regard.
Chememan stands for progress, quality and development with excellent services in all these areas. These claims are reflected in the way the current project is being run by Chememan. The project management is led by its own project team and managed by its own steering team.
The kick-off meeting for this project took place at the end of May 2015. The engineering of the plant was pushed forward to completion in tight collaboration between Chememan’s engineering office in Asia and Maerz in Switzerland.
Soil excavation started after a short period of site preparation, followed by the piling work. The challenging time schedule for the purchasing of long lead equipment and material was successfully managed by both of the project teams.
Before the end of the year 2015, the kiln foundation and several silo battery foundations were ready to take loads. Truck by truck the material and equipment arrived on site.
Several individual elements of the kiln steel parts could be pre-assembled close to the kiln foundations and lifted into place. The assembly of the kiln had progressed so far, that it was ready for the refractory lining work to begin. The refractory lining inside the 300 tpd PFR kiln started right on time at the beginning of February 2016. A local supplier is carrying out the work.
The 300 tpd PFR kiln is planned to be commissioned by the middle of 2016. Installation of the 200 tpd HPS single shaft kiln started in April and is planned to be ready for commissioning during the second half of 2016.


Shanghai Calcium Carbonate Factory Co., Ltd. signed a contract with thyssenkrupp Industrial Solutions China, formerly Polysius Shanghai, a joint subsidiary with Maerz Ofenbau AG in Switzerland, for the supply of design, engineering and key equipment of a Maerz H2 type HPS lime kiln for soft burnt lime. The plant is located in the Shanghai area. According to the joint agreement between thyssenkrupp and Maerz, thyssenkrupp will supply part of the equipment, while Maerz will be responsible for the major supply of equipment as well as the entire design and engineering.
The kiln will be fired with natural gas, producing 75 tons of lime per day with a limestone grading of 40 to 80 mm. The product emerging from this single shaft kiln is targeted for the food and pharmaceutical industries.


Sinosteel Equipment and Engineering Co., Ltd, China, as the general contractor for Tosyali Iron & Steel Company, signed a contract with Maerz for the supply of design, engineering, key equipment and technical assistance during erection and commissioning of two Maerz Parallel Flow Regenerative lime kilns. The two kilns – one R1P and one R4P kiln – will form an integrated part of the new extension to Tosyali steel production plant currently under construction in Oran, Algeria.
Both kilns will be operated using natural gas. The R1P kiln, fed with dolomite stone of a grading of 40 to 90 mm, will produce 300 tons of dolomite per day, while the R4P kilns daily capacity, at a limestone feed of a grading of 40 to 90 mm, will be 600 tons of lime. Kiln operation is planned to start during the first half of 2017.


Baslimane Chaux Berriane recently signed a contract for a natural gas fired 300 tpd Maerz PFR lime kiln of the type E5 to calcine the high quality dolomite stone from its quarry close to the city of Ghardaia in Central Algeria. Maerz is supplying engineering as well as the major part of the equipment and Maerz will also provide technical assistance during the erection and commissioning of the kiln. In a second step, BCB awarded Maerz with the contract for the handling system upstream and downstream the kiln. The new dolomite plant is a brown field installation replacing a small rotary kiln.


Unicalce S.p.A. signed a contract with Maerz for the supply of an additional wood dust firing system to be installed on its existing 400 tpd natural gas fired R2P Maerz PFR Lime Kiln at the Narni plant. Within the scope of this contract Maerz will supply engineering, license, know-how, equipment and technical assistance during erection and commissioning of the new firing plant.
The kiln will be operated using either a mix of wood dust and natural gas, or petcoke and natural gas, or 100 % of any of the three mentioned fuels, producing between 380 and 400 tons of lime per day. The new firing system is scheduled for commissioning by the end of this year.


Caleras Bertrán S.A de C.V. signed a contract with Maerz for the supply of design, engineering, key equipment and technical assistance during erection and commissioning of a R4S type Maerz Parallel Flow Regenerative Lime Kiln. The kiln will be fired with natural gas, producing 600 tons of lime per day with a limestone grading of 50 to 100 mm or 450 tons of lime per day with a limestone grading of 25 to 50 mm.
Kiln operation is planned to start in the middle of 2016.

GENUINE SWISSNESS. As most Swiss, we don’t like to push ourselves into the limelight. We are content knowing that we are well-known and our kilns are in demand throughout the world. To date we have built more than 600 plants for customers in over 60 countries. To make our customers happy we gladly go the extra mile.
That’s genuine Swissness.


Every year, more than 300 million tons of lime and dolomite are being calcined world-wide. 
A lot of it in Maerz Kilns.

For over 3000 years, burnt lime has been a basic material in the construction business. Today, it is also an important component for the chemical industry, agriculture and especially for the steel industry. Maerz kilns calcine the largest share of the amount needed worldwide – more than kilns from any other manufacturer. There are good reasons for the success that Maerz kilns enjoy: Highest efficiency. Lowest energy consumption. Broad range of kiln types. Individual solutions depending on location, raw material and available fuel. Maerz’ portfolio comprises all modern kiln types.

WHY SO MUCH OF THE WORLD’S LIMESTONE IS BURNT IN MAERZ KILNS. For over 60 years we have been passionately devoted to the technology of Iimestone calcination. A technology, which we have continuously enhanced. With the result that today a large portion of the burnt lime produced worldwide comes from our customers. For their success we always go the extra mile.
And we will continue to do so.


Maerz’ customer service operates just as impeccably as its kilns do. Globally.

Maerz supports its customers in different ways – anytime, fast and everywhere. Also after the commissioning of a turnkey plant. These are the services Maerz offers:

NO STONE IS LIKE ANOTHER. NO CUSTOMER EITHER. We have only become the world’s number 1 for lime kilns because each customer is our number 1. Whatever our customers’ request, we always see it as an opportunity to better ourselves. Therefore we work a little harder than necessary, from our offer to our servicing, to keep our customers satisfied.
That’s who we are.


Maerz  Ofenbau AG
Richard  Wagner-Strasse  28
8027  Zurich, Switzerland
Phone  +41-44-287 27 27
Fax  +41-44-201 36 34

Our Team in Zurich


Maerz worldwide

For all countries not specifically mentioned here, please directly contact Maerz in Zurich, Switzerland.

Maerz Ofenbau AG, Zurich

Maerz Ofenbau AG
Richard Wagner-Strasse 28
8027 Zurich, Switzerland
Phone: +41-44-287 27 27, Fax: +41-44-201 36 34


For all countries not specifically mentioned here, please directly contact » Maerz in Zurich, Switzerland.

Albania, Bosnia-Herzegovina, Croatia, Kosovo, Macedonia, Montenegro, Serbia, Slovenia
Dinko Sikic
Svetosavska 6
11080 Zemun/Belgrade, Serbia
Phone: +381-63-250 633, Fax: +381-630 55 67
Cellphone: +381-64-615 62 65

Ilk-San Refrakter Ticaret Ltd. Sti.
Kore Sehitleri C. No. 20/3
TR-34394 Istanbul, Turkey
Remzi Zorlu
Phone: +90-212-288 30 50, Fax: +90-212-288 30 90

TOV ThyssenKrupp Industrial Solutions Ukraine
ul. Vikentija Hvojky 21, Office 624
04655 Kiev, Ukraine
Олег Чабаненко
Phone: +380 (44) 230 87 34, Fax: +380 (44) 230 87 34

Middle East

For all countries not specifically mentioned here, please directly contact » Maerz in Zurich, Switzerland.

Ombar Material Engineering & Trading Ltd.
Tzvi Sharf
Egoz Street No. 9
P.O. Box 2144
27120 Kiriat-Bialik, Israel
Phone: +972 4 872 77 75
Fax: +972 4 872 39 98


For all countries not specifically mentioned here, please directly contact » Maerz in Zurich, Switzerland.

Maerz Lime Kiln Division China
thyssenkrupp Industrial Solutions (China) Co. Ltd
F7 Tower 2, No. 988, Shenchang Road
201107 Shanghai, China
Alan Liu
Phone: +86-21-61 81 75 88, Fax: +86-21-60 94 74 09
Cell phone: +86 13501823365

ThyssenKrupp Industries India Pvt. Ltd.
Pimpri, Pune-411 018, India
Ashutosh Pandita
Phone: +91-20-6612 4588, Fax: +91-20-2742 5788
Cellphone: +91 77980 16738

Indonesia, Malaysia, Papua New Guinea, Philippines, Singapore
ThyssenKrupp Industrial Solutions (Asia Pacific) Pte. Ltd.
3 International Business Park
#06-08 Nordic European Centre
Singapore 609927
Vijay Arumugam
Phone: +65-68 90 16 28, Fax: +65-68 90 16 35

JP Steel Plantech Co.
Kaneko No. 2 Building
2-6-23 Shin-Yokohama, Kohoku-ku
Yokohama 222-0033, Japan
Kentaro Takesue
Phone: +81-45-440 59 57 Fax: +81-45-440 58 48

Se Young Trading Co., Ltd.
930 Ho Shin Won Libertel B/D
338 Chang-Dong
Seoul, 132-908 Korea
Hyoung-Bin Park
Phone: +82-2-900 88 74, Fax: +82-2-900 38 77

Laos, Thailand
Saharuammith Industry Co. Ltd.
151 / 149 Moo 2
Pacha-U-Tid Rd.
10140 Bangkok, Thailand
Srisombat Ratchataviwat
Phone: +66-2-871 84 24, Fax: +66-2-871 81 16
Cellphone: +66-81-900 38 35

Sunshine Industrial Corp.
P.O. Box 1517
Taipei 100
2 F. No. 75, Sec.1
Chang An East Road
Taipei 104, Taiwan
Chris Kung / Shelley Kung
Phone: +886-2-561 66 97, Fax: +886-2-521 74 94

17 Hang Than Str.
Ba Dinh Dist.
Hanoi, Vietnam
Nguyen Truong Sinh
Phone: +84-4-3927 48 33, Fax: +84-4-3927 48 35

Australia, Oceania

Australia, New Zealand
ThyssenKrupp Industrial Solutions (Australia) Pty. Ltd.
L2, 355 Spencer Street
West Melbourne VIC 3003, Australia
John Tusa
Phone: +61-3-92 07 54 74, Fax: +61-3-92 07 58 88
Cellphone: +61-411-70 31 98

North America

Canada, USA
Kenneth R. Rhodes
119 Riverbluff Drive
LaGrange, GA 30240, USA
Cellphone: +1-678-457 57 09

Central America

For all countries not specifically mentioned here, please directly contact » Maerz in Zurich, Switzerland.

Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
Plattmann Consulting S.A.
Blvd. de la Hacienda Sur 32
Villas de la Hacienda
Edo. Mexico
52929 Mexico, Mexico
Udo Plattmann
Phone + Fax: +52-55-58 19 99 24

Gerardo Cárdenas
Bosque de Naranjos 68
Col. Bosques de las Lomas
11700 Mexico, D.F., Mexico
Gerardo Cárdenas
Phone + Fax: +52-55-56 66 45 52

South America

For all countries not specifically mentioned here, please directly contact » Maerz in Zurich, Switzerland.

Argentina, Chile, Uruguay
ThyssenKrupp Industrial Solutions Argentina S.A.
25 de Mayo 596Piso 14
Buenos Aires, C1002ABL, Argentina
Mr. Arturo Mogrovejo
Phone: +54-11-43 11 60 46, Fax: +54-11-43 11 60 45

ThyssenKrupp Industrial Solutions Ltda.
Av. Brigadeiro Faria Lima 1572 - 14° andar
Jardim Paulistano
01451-917 São Paulo/SP, Brazil
Guilherme Fasolo
Phone: +55-11-38 11 44 51
Cellphone: +55-119-8133 6213

Ferrotec Industrial Ltda
Carrera No. 8
123-50 Bogotá, Colombia
Hans Streubel
Phone: +57-1-612 45 88, Fax: +57-1-637 36 68

Calle Luis de Camoens, Edificio CENTRO CLOVER, Planta Alta
Zona Industrial La Trinidad, La Trinidad 1080,
PO Box 50863
Caracas DC 1050, Venezuela
Lenin Medina
Phone: +58-212-945-0902/9110/1567/9582
Fax: +58-212-945-0890/941-2252


For all countries not specifically mentioned here, please directly contact » Maerz in Zurich, Switzerland.

Eritrea, Ethiopia, Kenya, Uganda, Zambia, Tanzania
U.G. Cement Consult Ltd.
Kirichwa Road,
off Argwings Kodhek Road
Wanandege Flats - C10
P.O. Box 25226
Nairobi, 00603, Kenya
Mr. Ulrich E. Guertler
Phone: +254-20-243 7831

All other countries in Southern and Central Africa
ThyssenKrupp Industrial Solutions South Africa (Pty) Ltd.
71 Nanyuki Road
P.O. Box 1636
22052 Gallo Manor
Sunninghill, South Africa
Mr. Martin Boyd
Phone: +27-11-236 12 78

For more information about our world-wide representatives please click on your country.


Where to find us in Zurich