The Sanitary Extruder Hood (SEH)
Overview
The Sanitary Extruder Hood (SEH) is used in the manufacture of dry, cereal based foods produced continuously on a cooker extruder, commonly known as kibble.
The only CNC machined extruder hood delivering unparalleled precision, sanitary design, and an exceptional return on investment.
Key Benefits
100+
Units Installed
2009
Operating Since
15+
Year Service Life
100%
Units Still Operational
The SEH is the only CNC machined hood on the market offering unparalleled precision of finish to ensure repeatable reliable use over an extended lifetime.
Designed to meet the latest global hygiene requirements for foods and complies with the FDA guidelines and the European regulation for materials in contact with foods.
Fully machined to offer unparallel precision & quality
Set as the global standard for most of the top manufacturers
The robust design & precision manufacture gives an excellent return on investment.
Precision engineering construction offers a leak free system, helping keep the extruder room free from kibble & fines
Operational Safety
Sanitary Design
Low Cost of Ownership
Key Features
- Toolless access for insertion & removal of the die stack
- Internal positive pressure detection to prevent plugging the airlift & cyclone separator
- Mobile lifting table to assist with die assembly & handling
- 316 stainless steel construction
- Machined scarf joint ensures a leak free connection between the airlift & extruder hood
- No kibble leakage
- 15+ Years Operation life
- Minimal spares & maintenance
- Non-proprietary sensors
- Minimal wear parts
- Multiple mounting options
- Gasket free design
- Crevasse free design
- Washdown & burnout compatible
- Integrated Sample Port
How it Works
The kibble process uses the client’s cooker extruder to mix, cook and pressurise the kibble recipe so that it can be extruded through a die plate.
As the food leaves the die plate it is cut into small pieces via a rotary knife and carried away on a high velocity clean air stream.
Clean air is delivered under pressure into the cutting chamber and carries the cut food vertically upwards allowing the soft product to flash excess moisture into the air stream without sticking together or deforming under its own weight.
The food is discharged from a cyclone separator into a drying oven to reach final moisture content.
Technical Specifications
| Kibble throughput | 10 to 20 tonnes per hour, subject to air flow rate and ductwork size |
| Air Flow Rate | 10 tonnes/hr -> 1.4m³/sec. for 10” / 250mm dia ductwork 20 tonnes/hr -> 2.8m³/sec. for 14” / 350mm dia ductwork |
| Air Pressure Drop through the SEH | 44 mBar for 2.8m³/sec air flow rate 22 mBar for 1.4m³/sec air flow rate |
| Air / Product Ductwork Diameter | 250 / 300 / 350 mm (10” / 12” / 14”) |
| Max. Die Plate Diameter | 300 mm |
| Max. “Burn Out” Temperature | 125°C |
Applications
- New installation or retrofit into an existing installation.
- Existing cutter hubs and die stacks are typically compatible with the Frazer-Nash SEH.
- Suitable for single & twin-screw extruders
- Suitable for medium & large throughput extruders
- Available for pilot plant sized extruders
- SEV testing valves are available at minimal cost for testing
Related Products
SEV
The Sanitary Extruder Valve is an energy-management valve installed at the end of the extruder.
BCB
The Bi-Colour Barrel (BCB) is an upgrade for an existing twin-screw extruder that allows two distinct products to be produced continuously and simultaneously from the same machine.
Co-Extrusion Head
The Co-Ex is designed to produce filled treats directly from the end of an extruder. It takes the main extruder flow and divides it evenly across a number of treat nozzles, allowing multiple product strands to be formed at the same time.
Built for Precision. Trusted for Performance.
Behind every breakthrough is engineering that performs exactly as intended.
At Frazer-Nash Manufacturing, we help organisations working at the forefront of science, space and advanced technology
bring complex ideas to life through precision manufacturing, expert engineering support and uncompromising quality.
Whether you are developing a prototype, solving a manufacturing challenge or scaling a specialist production programme,
we are ready to help you move forward with confidence.
