01 Decoupling Test: Why is Investigating the Torque Limit Essential?
The core of a magnetic pump lies in its magnetic coupler. It acts like a silent magnetic "coupling," transmitting torque across a physical barrier through invisible magnetic force. However, there is an absolute upper limit to this transmission. ➤ Customer Pain Point: If the system jams unexpectedly, will the pump be damaged? Could it cause the motor to burn out?
➤Engineering Significance: Precisely measuring the maximum decoupling torque of the magnetic coupler not only defines the stable transmission torque value the magnetic coupler can provide but also offers crucial data for customer motor selection and circuit protection design.
02 Test Insights: Critical Point and Slip-Cycle
Our test aims to simulate the most severe "locked-rotor" condition. We block the pump outlet and, using a high-precision torque meter and a high-speed data acquisition system, gradually increase the load, awaiting the arrival of that critical moment. Core Test Process Record: ➤ Load Increase: The load torque increases steadily, with the magnetic coupler reliably transmitting all the power. ➤ Critical Decoupling: When the torque reaches the preset physical limit, the magnetic force between the inner and outer magnetic rotors is completely overcome. At this moment, "decoupling" occurs – the drive is instantly disconnected. The high-precision sensor captures and records this maximum torque value. ➤ Protective Failure Behavior: The outer magnetic rotor begins to idle, driven by the motor, while the inner magnetic rotor and impeller stop. This is the core safety mechanism of the magnetic pump: under overload, it chooses to "disconnect" rather than "force through."
However, the test doesn't end there. Under the influence of the rotating magnetic field, the inner and outer rotors continuously attempt to re-engage, generating periodic torque pulses and forming a "slip-catch" cycle. This dynamic behavior is not a fault but a complete demonstration of the product's self-protection and recovery mechanism under overload conditions. It shows that even in extreme situations, the pump continuously seeks to resume operation rather than failing silently.
03 The Value the Decoupling Test Provides to Customers
Through this test, we can provide you with: ➤ Accurate System Design Basis: Ensures your motor and driver selection perfectly match the pump's torque limits. ➤ Built-in Overload Protection Mechanism: The magnetic coupler itself acts as an invisible, maintenance-free mechanical safety clutch. In the event of an unexpected system jam, it proactively disconnects to protect the pump itself and the upstream drive equipment, preventing catastrophic damage.
Choosing Suofu means selecting not only a high-performance micro magnetic gear pump but also a safety commitment backed by product testing and verification.
