Product Portfolio

Maerz Ofenbau AG is the leader in process engineering, in the design and engineering of kilns and plants for the calcination of limestone and dolomite, in upstream plants for the handling of limestone and dolomite, as well as in plants for screening, storing and further processing of burnt lime, for example in hydration plants.

To date, approximately 500 kilns, and calcining plants, have been built for the lime and dolomite industry in some 60 countries worldwide. 

Maerz’s services are utilised by customers world-wide. Construction work is done by local constructors either for Maerz (in turn-key projects) or for the end-user. Maerz delivers know-how and engineering; Maerz provides expert staff and is offering performance guarantees for all plants.

The following chart will enable you to make a first choice as to which product best suits your needs, by providing an overview of the kiln types offered by Maerz, together with their most important characteristics and their range of application.

	Rectangular PFR Kiln Kiln Type: E1 - E6 Capacity (tpd): 100 - 400 Stone size (mm): 30 - 120 Heat consumption (kJ/kg)/(kcal/kg):   3390 - 3650 / 810 - 870 Key criteria: High reactivity lime
	Circular PFR Kiln Kiln Type: R1 - R5 Capacity (tpd): 300 - 850 Stone size (mm): 30 - 120 Heat consumption (kJ/kg)/(kcal/kg):   3390 - 3650 / 810 - 870 Key criteria: High reactivity lime
	Finelime Kiln Kiln Type: F1 – F3 Capacity (tpd): 300 – 500 Stone size (mm): 15 – 40 Heat consumption (kJ/kg)/(kcal/kg):   3310 – 3560 / 790 – 850 Key criteria: High reactivity lime
	Maerz HPS Single Shaft Kiln Kiln Type: H1 – H5 Capacity (tpd): 50 – 300 Stone size (mm): 10 – 100 Heat consumption (kJ/kg)/(kcal/kg):   4100 – 4610 / 980 – 1100 Key criteria: Medium to hard burnt lime
	Preheater Rotary Kiln Capacity (tpd): 500 – 1200 Stone size (mm): 15 – 45 Heat consumption (kJ/kg)/(kcal/kg):   4820 – 5650 / 1150 – 1350 Key criteria: high production rate and low sulphur product
	Annular Shaft Kiln Kiln Type: A1 – A3 Capacity (tpd): 200 – 600 Stone size (mm): 15 – 200 Heat consumption (kJ/kg)/(kcal/kg):   3800 – 4100 / 910 – 980 Key criteria: high CO2-content in off-gas
	Suspension Calciner Capacity (tpd): 300 – 1200 Stone size (mm): 0.03 – 2 Heat consumption (kJ/kg)/(kcal/kg):   5450 – 5860 / 1300 – 1400 Key criteria: finest raw material size