Paint stripping and Plastic Removal

Pyrolysis ovens (Diablo/Santana)- thermal cleaning

Diablo (S) series- pyrolysis oven

Advantages of pyrolysis oven thermal cleaning

  • safe, fast and reliable cleaning equipment
  • unique safe loading system, short cycle time
  • easy to install, easy to operate
  • compact lay-out, long machine life
  • low maintenane, low energy consumption
  • environmental friendly cleaning of tools
  • integrated afterburner for flue gas treatment

Pyrolysis furnaces

DIABLO and SANTANA "Heated Atmosphere" systems, are efficient and user friendly pyrolysis ovens with an accurately controlled atmosphere, designed for surface treatment of metals, specifically paint stripping, plastic removal, degreasing and rubber denuding.
Organic contamination evaporates and oxidises in a safely controlled low oxygen reactor chamber, efficiently sealed to guarantee accurate atmosphere control. Operating temperatures are between 320°-480°C. The cleaning cylce time is 2 to 6 hours, depending on the degree of polymer, paint or other coating and can be programmed in the PLC.
To meet with the stringent environmental legislation, Diablo and Santana pyrolysis ovens are standard equipped with an after-burner in order to treat the flue gases. No water is used to clean the flue gases, so no wastewater issues. The post-combustion chamber is intergrated into the compact design. An exhaust fan ensures the discharge of the cooled cleaned exhaust gases. As a result, it is not necessary to provide an insulated chimney.

Diablo (S) pyrolysis oven

Diablo (S) series are very compact pyrolysis ovens, recommended for cleaning of small tools, mainly for the removal of plastics like PP, PE, PVC. Typical use is cleaning nozzles, extrusion dies, spinnerets, filters, spinpacks. The compact design, PLC based programming and pneumatic operated door equipped with removable carrier makes it very easy to use. Moreover Diabo (S)pyrolysis ovens are very safe, have a short cycle time and require little maintainance.

Diablo (L) pyrolysis oven

Diablo (L) are designed especially for screw cleaning, without disassembling the screw. Screws for extrusion, screws from injection molding are cleaned in a low oxygen environment without any risk of deformation. Cycle time is 1,5 to 4 hours. The screw cleaning equipment is available from 2 up to 7 meter. The door is operated pneumatically, which is very safe for the operator and guarantees gas tightness during the cyle. A postcombustion is integrated in the compact design to meet with all environmental standards.

Santana (A) pyrolysis oven

Santana (A) systems work according to the same principle as the Diablo but are usually employed for larger parts. The door slides completely out of the cleaning chamber and is easily accessible from both sides using a hoisting system or forklift to load the parts. Santana pyrolysis ovens are designed for paint stripping and removal of plastic, paint or other organic coating from large metal tools and parts. Typical cleaning time is 6 to 10 hours, depending on the amount of coating.


  • thermal cleaning of injection nozzles,
  • cleaning of spinnerets, screens
  • cleaning of extrusion dies, breaker plates, screws
  • cleaning blow molding machine parts
  • cleaning of hot-runners, electrical motors,
  • stripping powder coating hooks and racks

Working principle pyrolysis oven

-The termperature control as well as the atmosphere inside the cleaning reactor are accurately controlled by an integrated programmed logic controller (PLC) for fast and thorough cleaning.

-Prior to insertion of the parts, the reactor of the pyrolysis oven can be pre-heated up to a stand by temperature or one can choose to load the parts-to-clean in cold condition.

-The loading frame (pneumatic door) slides out of the cleaning chamber when operated. The loading frame is now easily accessible from different sides to load the contaminated parts. Now parts can be loaded on to a loading platform.

-Multiple cleaning cylces can be programmed. The door is closed and the cleaning cycle will be activated automatically. When the cycle has come to an end, depending on the programmed parameters, the unit resumes stand by operation and the cleaned parts can be unloaded, or it cools down.

-The cycle itself can be freely programmed by a six stage cycle. Each stage of the cycle can be activated or tuned off, especially skipping the heat up phase and/or melting phase.