Silverson Flashmix
Quick Set-up Guide for Model FMX50
This video explains how to set up and use your Silverson Flashmix powder/liquid mixer. It is intended as a basic guide to get you started with the machine, but it is essential you read the Installation, Operation and Maintenance manual supplied with your machine before using it.
Jump to a Topic
Select a chapter below to go directly to that section of the video guide.
1. Installation & Setup
- 0:27 – Unpacking and Handling
- 0:59 – Positioning the Flashmix
- 1:29 – Pipework Specifications
2. Pre-Operation Checks
- 1:55 – What to Check Before Startup
- 2:20 – Electrical Setup and Safety
- 2:41 – Confirming Direction of Rotation
- A simple check that prevents serious damage!
3. Setup Validation
4. Powder Incorporation Process
- 4:28 – Powder Feed Valve Operating Guidelines
- 5:01 – Ensuring Hopper is Dry
- 5:11 – Starting Production and Adding Powder
- 5:30 – Avoiding Aeration and Foaming
5. Cleaning & Maintenance
Troubleshooting Guide
Ensure optimal performance with these troubleshooting tips.
Operating Sounds
What does normal operation typically sound like?
A steady, consistent humming indicates the mixer is functioning properly.
Cavitation or gurgling sounds
The mixer is being starved of liquid which usually means an air lock in pipework or a vortex in the vessel. Check for air locks or incorrect return piping.
Unusual noises during startup
If the shaft won’t rotate freely or makes unexpected sounds, your pipework might be putting stress on the mixer. Check the inlet alignment and relieve any mechanical strain.
Liquid Rising Into the Hopper
Liquid enters the hopper while the mixer is running
This may indicate excessive back pressure or insufficient mixer speed. Check for outlet restrictions and verify that the mixer is operating at full power to maintain forward flow during powder addition.
Liquid rises into the hopper when the mixer is off
Backflow can occur if the powder valve is left open after shutdown. The valve should only be open while the mixer is running and powder is being added. Keeping it closed at all other times helps prevent liquid from flowing up into the hopper.
Powder Not Flowing Properly
Powder sticking to the hopper walls
Moisture is the enemy here. Make sure that hopper is bone dry before adding powder, even small amounts of moisture will cause powder to stick and restrict flow.
Powder is tunneling or “rat-holing” in the hopper
This effect occurs when powder forms voids instead of flowing smoothly. Gently tap the hopper or use a plastic spatula to help stubborn powders along.
Poor Mixing Performance
Low flow in the vessel
Verify that all valves are properly set and confirm that the mixer is running at maximum speed if controlled by an inverter.
Foaming and aeration issues
This usually happens when air gets into the system. Make sure the return pipe is submerged below the liquid surface, and double-check that the powder feed valve is closed when not actively adding powder.
Looking for spare parts?
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