It makes my job mega enjoyable when we get to work on cool projects like this!
Installation of the overhauled totalizer went super smooth and we didn't even break a sweat!! We were working in a refrigerator... Each foot of this massive blender sits on top of a hydraulic load cell, literally suspended by hydrostatic fluid pressure. Each of these hydraulic load cells is plumbed into the totalizer where the forces are mechanically summated and transferred to the force transducer. This transfer of force from the piston in the load cell to the piston in the totalizer cell functions the same way the brakes do on your car. The force transducer is just a standard strain gauge load cell and it is wired into to a digital weight indicator for simple weight readings. The customer goes one step further with automation and they utilize the analog output of the weight indicator to send weight information to their Allen-Bradley PLC system that does all the controls for this blender. Several ingredients can be automatically be add by weight with this setup removing any possibility of operation error.
The heart of any hydraulic load cell system is the totalizer. After 20 plus years of use, the force transducer in the totalizer stack failed and the unit was in need of some tender loving care. We partially dissembled the stack to clean off any corrosion and residue while inspecting all moving parts. A brand new force transducer was installed and the stack was reassembled and mounted in the enclosure just in time to be installed in the A.M.! It's always a treat to be trusted to work on equipment like this.
When you need a 20 inch bench scale and there is none commercially available in the entire world from any of your suppliers you have to get creative. We produced this beauty in house for a customer to replace an existing scale that has been giving them issues. From two sticks of stainless box tube to a fully functioning scale it was fun to see this thing come to life. When we fabricate something in house we put a tremendous amount of thought into design to keep it rugged and simple. Anything that comes off the Koehler scale welding bench will last a life time!