Water transfer, ventilation, smoke extraction, pressurisation... in every one of these tasks the power comes from a motor that often runs uninterrupted for long hours. Pump, fan and blower applications are among the places where motors work hardest in industry. At HEM Motor we produce motors tailored to these applications in-house and deliver from stock, offering durability and efficiency together.
Because these systems usually run non-stop, motor efficiency feeds straight into the annual energy bill. Slip near full load in our motors is about 4%, and they are built with IP55 protection and Class F insulation. In high-temperature applications such as smoke extraction, the insulation class and protection level become decisive in selection.
In these applications the lowest operating cost comes from pairing a high-efficiency motor with a variable speed drive (inverter); adjusting flow on demand brings significant savings. For more efficient options see our IE4 and IE5 series. For model selection to suit your system, current stock and a quote, call +90 (532) 345 49 86 or use our contact page.
When replacing the drying fan motor of a glass washing machine, three things must stay the same as on the old motor: the number of poles (and therefore the fan speed), the motor's ... More Details
On a cold storage condenser, a standard three-phase motor can be used if the fan propeller is fitted to the shaft of a separate IEC-frame motor or driven by a belt. In external-rot... More Details
The motor for the circulation pump of a fabric dyeing machine is chosen not by looking at the machine's capacity but according to the pump's own data: flow, head, pump speed and th... More Details
When a stenter fan motor is replaced, two conditions are decisive: the temperature where the motor sits must be at a level a standard IP55, class F motor can work in, and the new m... More Details
A standard three-phase motor is the right choice for the hot air fan of a shrink packaging machine only if the motor frame stays outside the hot zone of the tunnel. The fan impelle... More Details
What strains the pump motor on a bottle washing machine is often not the electrical load but the motor's surroundings: steam rising from hot caustic solution, label pulp stripped o... More Details
When selecting a circulation pump motor for a pasteuriser, first separate which circuit the pump works in: is it the hygienic pump carrying the product, or the service-circuit pump... More Details
On a nut roasting machine, the drum motor and the fan motor are two motors that do two separate jobs on the same machine and see very different loads. The drum motor slowly turns a... More Details
On a plastic injection moulding machine, the hydraulic pump motor is not selected from the clamping force or the machine tonnage, but from the pump displacement, the system pressur... More Details
On an industrial high-pressure car wash machine, the pump motor is selected from the speed, flow and pressure the pump requires; the machine's appearance or the kW value of the old... More Details
A long starting time on a large fan usually indicates not that the motor is too small, but that the impeller's inertia is large. The real question is whether the motor's winding an... More Details
In fan drives, a direct-coupled motor is the right choice if the speed the fan needs matches a standard motor speed (about 3,000, 1,500 or 1,000 rpm), if the air moved is clean eno... More Details
On greenhouse and poultry house fans, the propeller speed must be kept, because the propeller diameter and blade angle were chosen for a particular speed: if the speed rises the mo... More Details
The motor of a boiler induced draft fan is selected according to the shaft power at cold start-up, when the fan moves its densest air, the speed the impeller was designed for and t... More Details
In an oven circulation fan, heat reaches the motor in three ways: by conduction through the fan shaft and mounting plate, by radiation from the hot oven casing, and through the war... More Details
To replace a burnt-out motor on an axial fan, fit a motor with the same power, the same number of poles, the same shaft diameter and length, and suitable for the same mounting orie... More Details
No; a larger motor running at the same speed does not increase the flow of a centrifugal pump. How much water the pump delivers is determined not by the motor's power but by the im... More Details
When replacing a jockey pump motor, the power is kept the same as on the old motor's nameplate; the two issues that really need attention are mounting compatibility and how many ti... More Details
Motor selection for a hot oil (thermal oil) circulation pump rests on two facts: the pump is under the most strain at a cold start, when the oil is thick, and the motor sees the he... More Details
The motor of a chemical transfer pump is selected according to the conditions of the environment, not of the pump. The pump's power and speed are determined by the fluid's density,... More Details
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