PUR-Mixing heads

Product catalog summary

PUR-Mixing Heads Overview
The document provides a detailed description of PUR-mixing heads, focusing on their design, functionality, and advantages. These mixing heads are used for processing polyurethane (PUR) materials, including foams, elastomers, and polyurea.

Mixing Principle
The mixing heads operate on a high-pressure impingement mixing principle. Components are introduced into a purely metallic sealed mixing chamber at pressures up to 200 bar. Upon activation, the needle retracts, allowing components to collide and mix intensively. Check valves prevent cross-contamination, and the system is designed to operate without solvent flushing or air blowing.

Mixing Chambers
The document lists various mixing chamber models with their respective output capacities, which depend on the viscosity of the materials being processed. The output ranges from 0.6 to 10 liters per minute.

Advantages
The mixing heads offer several advantages, including:

Recirculation ensures optimal processing conditions regarding temperature, pressure, and mixing ratio.
Optimized efficiency and laminar discharge of the mixture.
Suitable for both open and closed molds.
Compact and modular design.
Automatic self-cleaning and purely metallic seals reduce maintenance needs.
Capable of processing highly reactive systems with short pot lives.
Airless processing results in compact spray layers with excellent mechanical properties.

Special Features
Isotherm mixing heads are available in standard and special versions for various applications, including spraying, casting, and injection molding. They are designed to handle both filled and unfilled materials and are made from hard materials to process abrasive fillers.

Contact Information
Isotherm AG, located in Switzerland, provides these mixing heads and offers technical support. Contact details are provided for further inquiries.

Catalog excerpts

PUR-MischköPfe TêTes de Mélange PUR PUR-Mixing heads 9

Open the catalog to page 1

Die Komponenten gelangen durch Hohlschrauben an die rein metallisch abgedichtete Mischkammer, wo sie mit einem Druck von bis zu 200 bar an der Düsennadel anstehen. Les composants arrivent par les vis creux à la chambre de mélange avec une pression de max. 200 bar. Là ils sont separés métalliquement par l’aiguille. The components arrive through the hollow screws separated by the needle at the purely metallic sealed mixing chamber with a pressure max. 200 bar. En cas d’ouverture de la chambre de mélange, l’aiguille se déplace derrière les injecteurs. Les composants sont injectés l’un contre l’autre....

Open the catalog to page 2

PUR-Mischköpfe / Têtes de mélange PUR / PUR-Mixing heads Tout se passe dans la tête de mélange It happens in the mixing head Isotherm Giess- und Sprühmischköpfe arbeiten nach dem Prinzip der Hochdruck Gegenstromvermischung, sind automatisch mechanisch selbstreinigend und benötigen daher keinerlei Spülmittel. Aussi bien en coulée qu’en projection les têtes de mélange Isotherm travaillent selon le principe du mélange par contre-courant à haute pression et sont autonettoyantes par voie mécanique. Aucun rinçage solvant nécessaire. Isotherm pouring- and sprayheads are based on the highpressure impingement...

Open the catalog to page 3

· Mechanisch selbstreinigende Bauart · Rein metallische Dichtungen · Mischköpfe in Hartstoff-Ausführung zur Verarbeitung abrasiver Füllstoffe · Kein Lösungsmittel, keine Ausblasluft, keine Spülabfälle · Geringer Wartungsaufwand · Homogene Vermischung der Komponenten auch bei unterschiedlichen Mischverhältnissen und kleinsten Austragsmengen · Verarbeitung von höchstreaktiven Systemen mit Topfzeiten ab 1 Sekunde · Airless Sprühverfahren für eine kompakte Sprühschicht mit hervorragenden mechanischen Eigenschaften (geringes Porenvolumen) · Construction autonettoyante · Etanchéité métallique · Têtes...

Open the catalog to page 4

PUR-Mixing heads

PUR-Mixing heads

Catalog excerpts

All Isotherm AG, Polyurethane Processing Equipment catalogs and technical brochures