Brushless servomotor 42ZWWC80

DCBLDC18 V

Product overview
The DINGS 42ZWWC80 is a 42 mm slotless brushless DC motor. Slotless topology reduces cogging and torque ripple, enabling smooth speed and position control. Rated power varies by variant (examples up to 160 W); peak torque for specific variants can reach 3444.98 mN·m.

Motor characteristics
Motor part number: 42ZWWC80
Pole pairs: - | 1 | 1 | 1 | 1 | 2
Terminal resistance, Phase‑Phase (Ω): 0.4 | 0.45 | 0.6 | 0.95 | 0.22
Terminal inductance, Phase‑Phase (mH): 0.085 | 0.14 | 0.14 | 0.23 | 0.035
Winding connection: - | Star | Star | Star | Star | Star
Insulation class: - | B | B | B | B | B
Duty type: - | S2 | S2 | S2 | S2 | S1
Feedback: - | Hall sensors (all relevant variants)
Commutation angle: - | 120° (all relevant variants)
Insulation strength (withstand voltage): - | 500VAC/1KHz/1mA/1s
Insulation resistance: - | 100 MΩ/500VDC
Weight (g): 500 (typical)
Rated voltage (V): 18 | 24 | 36 | 48 | 24
Rated power (W): 66 | 80 | 100 | 160 | 102
Rated torque (mN·m): 90 | 90 | 90 | 120 | 180
Rated speed (RPM): 6678 | 8346 | 11619 | 12200 | 5400
Rated current (A): 4.89 | 4.17 | 3.47 | 4.17 | 5.7
No‑load speed (RPM): 9000 | 11000 | 13000 | 13800 | 6800
No‑load current (A): 0.6 | 0.69 | 0.6 | 0.58 | 0.42
Motor efficiency (%): 75 | 80 | 80 | 80 | 87.9
Noise (dB, ambient 20 dB, test distance 1 m): <50 (typical)
Thermal resistance (K/W): 4.11 | 4.79 | 5.44 | 5.32 | 4.7
Thermal time constant (s): 1240 | 1620 | 2040 | 2040 | 1340
Ambient temperature (℃): 23.1 | 23.5 | 23 | 23 | 22.6
Max winding temperature (℃): 51.5 | 63.7 | 80 | 80 | 72.1
Torque constant (mN·m/A): 18.41 | 21.6 | 25.92 | 28.8 | 31.58
Back‑EMF constant — peak (V/Krpm): 2.73 | 3.20 | 3.84 | 4.26 | 4.68
Back‑EMF constant — effective (V/Krpm): 1.93 | 2.26 | 2.71 | 3.02 | 3.31
Peak torque (mN·m): 828.41 | 1152 | 1555.2 | 1455.16 | 3444.98
Peak current (A): 45 | 53 | 60 | 51 | 109
Rotor inertia (g·cm²): 96.3 (all variants)
Mechanical time constant (ms): 11.37 | 9.29 | 8.60 | 11.03 | 2.12
End bell: Stainless steel (relevant variants)
Bearing: Deep groove ball bearing (relevant variants)
Magnet: Sintered NdFeB (relevant variants)
Rotation shaft: Carbon steel (relevant variants)

Dimensional drawing
Dimensional drawing and size images are available on the product page (example assets: 42_slotless.png, 42_slotless_thumb.png, 42mm_dimensional-drawing.jpg).

Torque performance curves

• Curve image for 1 pole pair (performance curve available)
• Curve image for 2 pole pairs (performance curve available)

Options
Precision Planetary Gearbox
Available stages and typical performance ranges:
Stage: - | Stage 1 | Stage 2 | Stage 3 | Stage 4
Gear ratio (X:1): X:1 | 3.9, 5.3 | 16, 21, 28 | 62, 83, 111, 150 | 243, 326, 439, 590, 794
Max. backlash (°): - | 0.3 | 0.4 | 0.5 | 0.6
Max. continuous output power (W): - | 480 | 200 | 85 | 20
Max. peak output power (W): - | 600 | 250 | 106 | 25
Max. continuous input speed (RPM): - | 6000 | 6000 | 6000 | 6000
Max. peak input speed (RPM): - | 7500 | 7500 | 7500 | 7500
Max. continuous torque (N·m): - | 3.0 | 7.5 | 15 | 15
Max. peak torque (N·m): - | 4.5 | 11.3 | 22.5 | 22.5
Max. efficiency (%): - | 90 | 81 | 72 | 64
Weight (g): - | 252 | 405 | 476 | 544
Gearbox length L (mm): - | 36.1 | 54.9 | 63.6 | 72.4

Silent gearbox
Silent planetary gearbox option: precision gear reduction solution providing stable torque transmission and low‑noise operation; compatible with DINGS motors for robotics, automation and precision machinery.

Applications

• Servo and motion control systems
• Robotics and cobots
• Precision actuators and automation equipment
• Medical pumps and instrumentation
• Industrial appliances requiring low cogging and precise control

Technical specifications

• Brand: DINGS
• Model: 42ZWWC80
• Form factor: 42 mm slotless brushless DC motor
• Rated power: variants from 66 W to 160 W (variant dependent)
• Rated voltage variants: 18 V, 24 V, 36 V, 48 V
• Peak torque: up to 3444.98 mN·m (specific variant)
• Feedback: Hall sensors
• Commutation angle: 120°
• Bearing: Deep groove ball bearing
• End bell: Stainless steel
• Magnet: Sintered NdFeB
• Rotation shaft: Carbon steel