Electric Motor Blog

In IEC frames between 132 and 355, the frame number also gives the height from the foot base to the shaft centre in millimetres. What makes replacement difficult in this range is n... More Details

The IEC frame number gives the height from the motor's foot base to the shaft centre in millimetres. In the HEM Motor sales range, the small frames between 63 and 112 mostly carry ... More Details

When choosing a replacement for a three-phase motor whose nameplate shows HP (horsepower), the right approach is to convert the HP value to kW and fit it to a standard kW rating: 1... More Details

For a 160 kW three-phase asynchronous electric motor, the frame choice depends on speed: in the HEM Motor 2026 catalog, the 2-pole and 4-pole 160 kW models use a 315L frame, while ... More Details

With a 132 kW three-phase asynchronous electric motor, the real work begins after the motor has been chosen: if the cable, switchgear and transformer capacity feeding a load that d... More Details

When choosing a 90 kW three-phase asynchronous electric motor, the first decision is the speed; frame, current, torque and even the base preparation follow from that decision. In H... More Details

To buy an electric motor you do not need to visit a shop in the city where the motor will be used; every piece of information needed to determine the right model is on the motor na... More Details

There is no quality difference between an imported electric motor and a domestically produced one that stems solely from the country where it was made. How well a motor performs is... More Details

When replacing a motor in a tight installation space, the same IEC frame code alone is not a sufficient guarantee. The frame code defines shaft height, foot hole spacing and shaft ... More Details

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

On a textile winding machine, what determines the motor choice is how the load changes as the roll grows. If fabric is wound at constant speed and constant tension, when the roll d... 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

When choosing the turntable motor of a pallet stretch wrapper, the real compatibility is between the motor and the gearbox: the motor speed and the gearbox ratio determine the tabl... 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

When moving from a sample motor to series orders, the safest way to keep technical compatibility is to turn the approved sample into a written reference record and compare every se... More Details

When selecting a ball mill motor, the real challenge is not running but starting: the ball and material charge inside the rotating drum forms a large unbalanced mass that the motor... More Details

On a screw sand washer, the motor and gearbox are selected together: the motor supplies the power, and the gearbox produces the torque needed to turn the screw slowly through water... More Details

In an asphalt plant, the mixer motor drives the twin-shaft mixer (pugmill) that makes the hot mix homogeneous within a short time. Two conditions are decisive for this motor: the h... More Details