High Power Expansion Within Standard 100mm Frame
The 250W Micro Gear Motor retains the 100×100mm frame size, an overall length of 280mm and a total unit weight of 6.6kg with no changes. Internally, it is upgraded with thicker multi-layer pure copper windings to reach 250W, delivering the maximum power output among single-phase models of the series under the same mounting dimensions. It can directly replace all 140W to 200W motors with the same flange, eliminating the need to modify frame holes during equipment retrofits.
High-Current & Large-Capacity Capacitor Startup Matching
250W Micro Gear Motor is compatible with global single-phase mains power of 50/60Hz, with an operating current range of 1.15~3.3A. It is matched with wide-range starting capacitors from 10uF to 48uF. It boasts sufficient current reserve for instant heavy-load startup and high-frequency forward and reverse rotation working conditions, eliminating issues such as weak startup and speed drop.
Uniform 15mm Solid Through Shaft with Wide Torque Output
Both the input shaft of the Micro Gear Motor and the output shaft of the reduction gearbox adopt high-strength 15mm solid shafts, with a full range of gear ratios from 1:3 to 1:300 and output torque ranging from 4.83Nm to 43Nm. Its starting torque at low speeds is far higher than that of 200W models, enabling smoother and more powerful startup for heavy material conveying and heavy-load lifting equipment..
Multi-Labyrinth Oil Seal & Air-Tight Leak-Proof System
The 250W AC geared motor is equipped with double-layer labyrinth seal grooves built into the gearbox together with high and low temperature resistant rubber oil seals. Every finished unit undergoes prolonged air tightness and water immersion leakage testing before leaving the factory, with no oil leakage after 24 hours of continuous full-load operation, meeting the dust-free and clean production requirements of food workshops and precision electronics workshops.
Precision Helical Gear Convection Cooling & Noise Reduction Structure
This product adopts precision ground helical gears to reduce transmission vibration and meshing noise, cutting operating noise by 10% compared with ordinary motors available on the market. Extended annular cooling ribs on the outer casing form convection air ducts, lowering temperature rise by over 10% under full load, making it suitable for year-round non-stop mass production on heavy-duty assembly lines.
IP55 Industrial Protection & Cost-Effective High Load Capacity
Our complete reducer unit features IP55 protection against dust and splashing water, enabling stable long-term operation in harsh processing stations with accumulated dust and cutting fluid spray. Reinforced internal gear and shaft structures boost the ultimate load capacity by over 10%. Compared with imported motors of the same torque rating, it delivers significantly lower procurement costs, serving as the primary power unit for heavy-duty automated production lines.
Q:Can the original single-phase speed controller of 200W model be reused on this identical-size 250W motor?
A:Direct reuse is forbidden. The maximum operating current of 250W reaches 3.3A which exceeds the current threshold of controllers for 200W. Long full-load operation will burn internal components, so dedicated speed regulators rated for 3.3A are required.
Q:Is the minimum ratio 1:3 with 4.83Nm torque suitable for high-speed heavy roller conveyor lines?
A:It fits high-speed conveying of light & medium-weight materials. For rollers loaded with heavy goods, medium reduction ratios are recommended to boost output torque and avoid continuous motor overheating that shortens winding service life.
Q:How to reduce keyway abrasion on the 15mm output shaft during long vertical hoisting of the 6.6kg motor?
A:Custom shafts with hardened flat keyways are preferred. Restrict shaft extension length within 300mm; auxiliary support brackets must be installed for longer extensions to share radial load and cut over 80% keyway wear.
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