{"id":27568,"date":"2026-05-19T08:32:09","date_gmt":"2026-05-19T06:32:09","guid":{"rendered":"https:\/\/www.kma-filter.de\/best-practice-references-exhaust-air-filtration-kma\/best-practice-stihl\/"},"modified":"2026-11-03T12:58:47","modified_gmt":"2026-11-03T11:58:47","slug":"best-practice-stihl","status":"publish","type":"page","link":"https:\/\/www.kma-filter.de\/en\/best-practice-references-exhaust-air-filtration-kma\/best-practice-stihl\/","title":{"rendered":"Best Practice STIHL"},"content":{"rendered":"\t\t
\n\t\t\t\t
\n\t\t
\n\t\t
\n\t\t
\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Energy-efficient heat recovery<\/strong>
for foundries<\/h1>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

STIHL uses recovered process heat from production exhaust air to heat the entire die casting foundry in winter via a central production hall ventilation system \u2013efficiently, at a large scale, and without conventional production hall heating.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tPOTENTIALS<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tAchievements<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tSolution<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tContact<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t<\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t<\/path>\t<\/g><\/g><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Cleverly utilize process heat in the foundry like STIHL<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

At STIHL\u2019s magnesium die-casting plant in Weinsheim, KMA combines exhaust air treatment with heat recovery.<\/p>

A total of twelve KMA-ULTRAVENT systems on the hall roof purify the exhaust air and recover its heat. This heat is used to warm the fresh air for the hall. In addition, waste heat is recovered from the cooling water of the casting machines. <\/p>

As a result, the hall maintains a constant temperature of 18 \u00b0C throughout the winter months without the need for conventional energy sources such as electricity or gas.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t
\n\t\t\t\t\t
\"Icon-Industry-Accent\"<\/figure>

- 85% less
CO\u2082 emissions<\/h3>

From 363 to 55 tons of CO\u2082 \u2013 heating without conventional production hall heating<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t
\"Icon-Energy-Accent\"<\/figure>

- 83% less
energy costs<\/h3>

Drastically reduce operating costs: approx. \u20ac5,900 instead of around \u20ac36,000 per year. <\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t
\"Icon-Heat-Exchanger-Eco-accent-light\"<\/figure>

1,350 kW\/h heat recovery<\/h3>

Pure air & constant 18 \u00b0C \u2013 without \nconventional energy sources<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t\t
\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

With a casting capacity of approximately 6,000 tonnes per year, the STIHL plant is now regarded as one of the largest and most modern magnesium die-casting plants in Europe. It operates 20 die-casting machines using hot-chamber and cold-chamber technology, with clamping forces of up to 1,000 tonnes. Around 800 employees produce over 26 million components annually for chainsaws and other power tools manufactured by the parent company, as well as for external customers. <\/p>

An exhaust air filter system with strong eco-efficiency for reliable exhaust air filtration and powerful heat recovery was sought.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t

Large Magnesium Die Casting Plant with Layer Ventilation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t

The Initial Situation in the STIHL Foundry<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t
The STIHL magnesium die casting plant in Weinsheim, Rhineland-Palatinate <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Top 3 Pain Points at STIHL<\/h2>\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t
\"\"<\/figure>

Emission Limit Values<\/h3>

Due to high smoke pollution\na\n13-fold hourly air exchange takes place in the foundry.\nThis corresponds to an air flow of\n360,000 m\u00b3\/h.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t
\"\"<\/figure>

Without Fossil Fuels<\/h3>

The die casting foundry is to be heated to a constant 18 \u00b0C during the winter months \u2013 without \nconventional energy sources<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t
\"\"<\/figure>

High CO\u2082 Emissions<\/h3>

Energy prices and CO\u2082 costs are rising. A gas-fired heating system would produce around 363 tonnes of CO\u2082 per year. <\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

The Potential for a Die Casting Plant<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t

Multi-stage recovery\nof valuable process waste heat<\/h2>\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

The company is committed to a high level of environmental protection and energy efficiency and their continuous improvement, both in corporate processes and in products. In accordance with these principles, great importance was attached to eco-efficiency when selecting a new exhaust air filter system. The following factors were in focus:<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t\t\t\t\t\t