Direct-drive washing machine motor

Manufacturer catalogue image · Series illustration

Permanent magnet motors

Direct-drive washing machine motor

Voltage
310 V
Power
Confirm configuration
Speed
Model dependent
Selection
Specify supply, duty and mounting with your inquiry

Catalogue series · Exact configuration and availability confirmed by the manufacturer.

Nanyang DD washer drive: separate the wash-torque requirement from the spin-speed requirement

Nanyang’s outer-rotor DD family is presented for front-loading washing machines in the 8–25 kg class. It drives the tub directly without a belt-and-pulley stage. The published 36-slot, 48-pole design is therefore an appliance-integration choice: the wash cycle, spin cycle, drum connection and inverter must be specified together. The family’s largest torque and speed values are not a single rated operating point.

Two operating duties, one motor family

These entries come from the DD family table. No individual winding code or paired torque-speed curve is provided, so the ends of each range should remain separate selection limits rather than a complete motor rating.

Selection itemWash dutySpin duty
Published torque 15–50 N·m 2.5–4.5 N·m
Published motor efficiency ≥45% ≥75%
Speed evidence No wash-specific rpm given Whole-family envelope is 0–1,600 rpm; no torque-to-speed pairing
What the application must supply Drum load and reversal cycle at required wash speed Target spin speed, acceleration time and unbalanced-load behaviour

Why “50 N·m at 1,600 rpm” is not a valid interpretation

Check the implied shaft power

Using P(kW) = torque(N·m) × speed(rpm) ÷ 9,550, a hypothetical 50 N·m at 1,600 rpm would require about 8.38 kW of shaft power. This is a calculation to expose a mistaken combination, not a product rating. The same family table lists power as 0–3/4 HP and separates wash from spin torque. It does not support combining maximum wash torque with maximum family speed.

Specify the two load points separately

A useful request states the required wash torque at wash rpm, then the spin torque at spin rpm, together with acceleration and reversal intervals. Ask for a selected winding’s torque-speed curve and thermal-duty qualification covering those points. The published 8–25 kg appliance range is context for the family, not proof that one motor configuration suits every drum in that range.

Keep motor efficiency and appliance savings separate

The wash and spin efficiency entries describe motor performance categories. They do not state test load points or establish a complete appliance energy rating. Compare quotations using the same wash/spin operating points and the same inverter losses; do not turn either percentage into a promised household electricity saving.

Prepare the drum and inverter interfaces as a matched package

Electrical configuration

The table states 310 V DC, 36 stator slots and 48 rotor poles. It does not specify the inverter output current, feedback pinout or winding resistance. Request those values and the compatible control arrangement; 310 V DC is not a description of a household AC connection. Do not infer connector functions from the product photograph.

Mechanical revision

The source lists 6202/6201 bearings and maximum external dimensions as 290.2/297 mm, without mapping each value to an individual revision. It also lists iron/PP construction. Ask which bearing arrangement and envelope belong to the offered assembly, then compare the tub mounting, rotor attachment and drum-shaft interface on a dimensioned drawing. An outside diameter alone does not establish interchangeability.

Acceptance at the appliance level

Agree on tests for loaded wash reversals, transition to spin and the intended unbalanced-load condition. Record the actual appliance capacity and cycle durations. Direct drive removes the belt stage, but it does not by itself establish vibration, acoustic performance or controller compatibility in a particular washing machine.

CATALOGUE OVERVIEW

About this motor series

Nanyang's DD catalogue describes an outer-rotor BLDC motor for front-loading washing machines with 8–25 kg capacities. The published table identifies horizontal direct drive, 310 V DC supply, 36 stator slots and 48 rotor poles. Its listed speed envelope is 0–1600 rpm.

Wash torque is given as 15–50 Nm, while spin torque is listed separately as 2.5–4.5 Nm. The power entry is expressed as 0–3/4 HP; request the selected model's rated output in watts before making a power-based comparison. Check drum coupling, installation dimensions and controller compatibility against the appliance drawing, because the family table covers multiple configurations.

Published specifications

Specifications describe a series range; confirm which ratings apply together to the quoted model.

Voltage
310 V
Power
Confirm configuration
Speed
Model dependent
Selection
Specify supply, duty and mounting with your inquiry
Manufacturer
Nanyang Motor
Catalogue Type
Product series

Confirm mounting and shaft dimensions against the drawing for the quoted configuration.

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