1.The speed for this machine testing was 7500 revolutions, stopped for 2 seconds, turned on for 3 seconds, stopped between the third time for 5 seconds, continued the testing for 10 hours/day, repeated for 100 days or so, the temperature was 60 degrees (C°).

2.For the testing of this machine, it accelerated progressively to 7500 revolutions and then deceleratedgradually to 0; stopped for 5 seconds, turned on for 12 seconds. We proceeded with the testing 24 hours a day (all day), then repeated for about 100 days a day, the temperature was 50 degrees (C°).

3.For the testing of this machine, it accelerated progressively to 7500 revolutions, stoped for 5 seconds, turned on for 7 seconds. We tested continuously for 10 hours/day, repeated for 100 days or so, the temperature was 51 degrees (C°).

We tested the electrical components such as solenoid valve.

The above is Huatang Sewing Machine’s testing site. The phenomenon of sewing machine overheating has not been found in the laboratories of Huatang Company. The temperature at 6500 revolutions was 46 degrees (C°). The operation proceeded continuously for 12 hours.

The ambient temperature in the laboratory was 16 (C°). (North China Winter).

Huatang Sewing Machine's Design Method reduces the machine's internal space by 25% of its capacity. When injected with the same amount of oil of 750cc Huatang machines outperform other machines in lubrication, temperature, and internal parts wear and tear. The sound of the device is 55db at 6000 rpm and 80db at 7500 rpm, and Huatang's machine torque is 2.0kgf.cm with no load.

On the designaspect, the device has a heat-dissipating aluminium fan connected to the main shaft and has a heat dissipating exhaust pipe.

Huatang sewing machine design and threading strive to be the best in the world.Butwe hope you can provide us with more advice.

The new DEX sewing machine price is more favourable, but the machine performance is the same with iEX’s. Only the electrical box is locatedoutside the device (same as the electrical parts of other machines, but the motor is still inside thismachine).