--- title: Catalytic Emission Cleaner description: Reduce roasting emissions with Giesen's Catalytic Emission Cleaner—compact, efficient, and compatible with W6 and larger roasters.​ --- Emissions ### Catalytic Emission Cleaner Reduce your total emissions as efficiently as possible. The Catalytic Emission Cleaner (CEC) combines a catalyst with an afterburner to eliminate emissions at a lower temperature than a normal afterburner. The compact form-factor and sleek design make a CEC easy to fit into your roast setup.  - Uses a catalyst in conjunction with an afterburner - Reduces CO and NOx emissions - Available for W6 series roasters and up ![Catalytic emission cleaner](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/Catalytic%20emission%20cleaner.webp?width=300&name=Catalytic%20emission%20cleaner.webp) - [Sample Roaster](https://giesen.com/w6-series?hsLang=en) - [W1A/E](https://giesen.com/w6-series?hsLang=en) - [W6A/E](https://giesen.com/w6-series?hsLang=en) - [W15A/E](https://giesen.com/w6-series?hsLang=en) - [W30A/Pro](https://giesen.com/w6-series?hsLang=en) Giesen W6 series. ## Up to 24 kg / h. With a 6-kilo capacity per batch and up to 24 kilos per hour, Giesen W6 series roasters deliver efficiency and consistency. Perfectly balanced for professionals who demand both quality and volume. The ultimate centerpiece for your coffee shop. Designed to perfection, it offers the flexibility of full-control manual roasting alongside the convenience of fully automatic roasting. Handcrafted in the Netherlands and shipped worldwide. ![W6seriesRender](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/W6seriesRender.png?width=300&name=W6seriesRender.png) Easy and accessible. ### How does it work? Catalytic Emission Cleaning works quite similar to thermal afterburning, with the difference being that the gas after passing the flame, passes through a catalyst. The catalyst ensures accelerated oxidation at lower temperatures. The polluted air is heated to approximately 320°C, which is a much lower temperature than being used with a thermal afterburner. [Request a Quote](https://giesen.com/request-a-quote?hsLang=en) ![CEC](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/CEC.webp?width=300&name=CEC.webp) Compact and versatile. ### High efficiency, compact design The CEC product line is designed to be as efficient as possible without taking up too much valuable space. Maintenance of this addition also user-friendly; the areas that need to be cleaned are easy to reach. [Read More](https://giesen.com/request-a-quote?hsLang=en) [Request a quote](https://giesen.com/w6-series?hsLang=en) ![Cec with W30a pro](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/Cec%20with%20W30a%20pro.webp?width=300&name=Cec%20with%20W30a%20pro.webp) Dimensions** **CEC30 ** Dimensions: 594 x 604 x 1985 Weight: 265 kg **CEC60 ** Dimensions: 2556 x 837 x 1861 Weight: 505 kg **CEC140 ** Dimensions: 2582 x 837 x 1879 Weight: 625 kg Specifications** **CEC30 ***On request* **CEC60** *On request* **CEC140*** On request* ## Giesen essentials. [![Profiler](https://giesen.com/hs-fs/hubfs/Profiler.jpg?width=300&name=Profiler.jpg) Profiler Choose for ultimate control. ](https://giesen.com/profiler?hsLang=en)[![destoner-2](https://giesen.com/hs-fs/hubfs/destoner-2.jpg?width=300&name=destoner-2.jpg) Destoner Keeping it clean. ](https://giesen.com/destoner?hsLang=en)[![cyclone](https://giesen.com/hs-fs/hubfs/cyclone.jpg?width=300&name=cyclone.jpg) External Cyclone Less mess, more roasting. ](https://giesen.com/external-cyclone?hsLang=en)[![gcc](https://giesen.com/hs-fs/hubfs/gcc.jpg?width=300&name=gcc.jpg) GCC No more heavy lifting. ](https://giesen.com/coffee-conveyor?hsLang=en)[![cec-2](https://giesen.com/hs-fs/hubfs/cec-2.jpg?width=300&name=cec-2.jpg) Emission Cleaning Fresh air, fresh coffee. ](https://giesen.com/roasting-equipment?hsLang=en) ### Let's talk! *We would love to talk to you about your ideas, wishes and coffee dreams! * [Get in touch!](https://giesen.com/contact?hsLang=en) The serious stuff. ## Technical data. If you need any further technical information that you can't find on this page, please contact us. We will be happy to help you! Temperature control** Giesen roasters combine advanced temperature control with cutting-edge automation, ensuring consistency and ease in every roast. With features like automatic mode and burner percentage control, you have the tools to master your craft and achieve unparalleled results. Airflow control** Giesen roasters feature advanced airflow control, allowing you to fine-tune the roasting environment to achieve your desired flavor profiles. By adjusting the underpressure settings, you can influence the heat transfer and development of your beans. Drumspeed control** Giesen roasters feature adjustable drum speed control, empowering you to perfect your roasting process. By modifying the drum's revolutions per minute (RPM), you can balance conductive and convective heat transfer, ensuring uniform bean development. General specifications** **Measurements **W6A - 1427 (L) x 723 (W) x 1705 (H) W6E - 1410 (L) x 723 (W) x 1705 (H) W6A Pro - 1623 (L) x 2414 (W) x 1944 (H) **Weights **W6A - 485 kg (roaster only) W6E - 496 kg (roaster only) W6A Pro - 600 kg (roaster only)** ** **Minimum batch size **W6A - 3 kg W6E - 3 kg W6A Pro - 3,5 kg** ** **Maximum batch size **W6A - 6 kg W6E - 6 kg W6A Pro - 7 kg** ** **Sound level **W6A - 70 dB (A) W6E - 70 dB (A) W6A Pro - 70 dB (A)** ** Electrical specifications** **Supply voltage **W6A - 230V AC (1L+N+PE) W6E - 400 V AC (3L+N+PE) W6A Pro - 230V AC (1L+N+PE) **External fusing **W6A - 1 x 16A W6E - 3 x 32A W6A Pro - 1 x 16A** ** **Max. electrical power **W6A - 1,7 kW W6E - 17 kW W6A Pro - 2,5 kW *Keep in mind that this is the absolute maximum power consumption. Actual average usage will be much lower.* Ranges** **Underpressure range **80 - 150 Pa (min. - max.) Default value: 110 Pa **Drum speed range **36 - 51 Hz (min. - max.) Default value: 46 Hz** ** **Temperature setpoint range **100 - 250 °C (min. - max.) Default value: 200 °C** **   [Request a Quote](https://giesen.com/contact?hsLang=en) ![Gas_01-1](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/Gas_01-1.jpg?width=1200&length=1200&name=Gas_01-1.jpg) ![Gas_01-1](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/Gas_01-1.jpg?width=1200&length=1200&name=Gas_01-1.jpg) ![Gas_01-1](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/Gas_01-1.jpg?width=1200&length=1200&name=Gas_01-1.jpg) ![Gas_01-1](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/Gas_01-1.jpg?width=1200&length=1200&name=Gas_01-1.jpg) ![Gas_01-1](https://47580324.fs1.hubspotusercontent-na1.net/hub/47580324/hubfs/Gas_01-1.jpg?width=1200&length=1200&name=Gas_01-1.jpg) ```json { "@context" : "https://schema.org", "@type" : "Organization", "address" : { "@type" : "PostalAddress", "addressCountry" : "", "addressLocality" : "Dinxperlo", "addressRegion" : "Nederland", "postalCode" : "", "streetAddress" : "Anholtseweg 44" }, "email" : "info@giesen.com", "knowsLanguage" : "en", "logo" : { "@type" : "ImageObject", "url" : "https://47580324.fs1.hubspotusercontent-na1.net/hubfs/47580324/V3-Dark@20x.png" }, "name" : "Giesen Coffee Roasters", "telephone" : "+31 (0) 315 68 13 77", "url" : "https://giesen.com/catalytic-emission-cleaner" } ```