Pumps boost process efficiency

Until recently, Manikraft used solenoid-style diaphragm pumps to dose chemicals into the pulp. However, there were problems with incrustation and air bubbles that compromised final product quality.

Qdos metering pumps are designed for chemical dosing in industrial markets and accurately meter chemicals without the need for any valves or ancillary equipment, keeping costs to a minimum; total cost of ownership is said to be less than that of a typical solenoid or stepper-driven diaphragm pump.   

Benefits for Manikraft include accuracy, repeatability, quick maintenance, and budget. Maintenance intervals are up to 4000 hours at typical use. 

Manikraft varies the flow depending on the application and needed a pump with ease of accurate, repeatable dose adjustment. For instance 90-130 ml/min is preferred for resin dosing; 5-20 ml/min for release agents; and 20-70 ml/min for additives. Qdos fits the need, offering 5,000:1 flow range and 1% accuracy which can be achieved either through the user-friendly HMI or through plug-and-play auto control inputs. 

As with any retrofit application, matching quality to a tight budget was important.  Manikraft was familiar with lower cost peristaltic pumps, including pumps that used separate inverter controls.  Though within budget, inverter driven pumps did not offer the speed range, accuracy, compact footprint, or simple operator interface that Manikraft needed.