RP34 : RapidPower™ BLDC Motor

Size: Nema 34
Peak Torque: to 1096 oz-in or 774 Ncm



Good-Performance. Good Price.
Our ElectroCraft RapidPowerTM Nema 34 is a compact, high-performance brushless motor incorporating ball bearing construction, a low cogging electro-magnetic design with both low audible and magntic noise. It is available with a hall-effect commutation encoder or a variety of optical encoders for higher precision applications.

RP34 Speed / Torque Curves

rp34rp34rp34

RP34 Mechanical / Winding Data

Stack Size Models RP34 - 112 RP34 - 217 RP34 - 313
Continuous Stall Torque (oz-in) 112 217 313
Continuous Stall Torque (Ncm) 79.08 153.22 221.01
Peak Torque (oz-in) 392 759 1095
Peak Torque (Ncm) 276.79 535.93 773.18
Motor Constant (oz-in / Watt) 18.10 29.10 35.50
Electrical Constant (msec) 4.80 5.50 6.00
Mechanical Constant (msec) 6.70 4.30 4.40
Rotor Inertia (oz-in-sec2) 0.0149 0.0258 0.0385
Rotor Inertia (gm-cm2) 1052.2 1822.0 2718.9
Thermal Resistance (C / Watts) 2.0 1.5 1.0
Weight (oz) 64.0 100.0 143.0
Weight (Kg) 1.8 2.8 4.1
Length (inches) 2.8 4.2 5.5
Length (cm) 7.1 10.7 14.0
Number of Poles 4 4 4

Winding Models 112V24 112V48 112V90 112V160 217V24 217V48 217V90 217V160 313V24 313V48 313V90 313V160
Design Voltage
(VDC)
24 48 90 160 24 48 90 160 24 48 90 160
Continuous Current
(Amps)
24.4 12.1 6.1 3.2 22.3 16.9 8.9 5.0 22.7 17.0 11.3 4.7
Peak Current
(Amps)
85.5 42.4 21.2 11.2 78.0 59.1 31.1 17.6 79.3 59.6 39.7 16.5
Voltage Constant
±10%
(VDC/kRPM)
3.4 6.8 13.7 25.9 7.2 9.5 18.1 31.8 10.2 13.6 20.4 34.0
Torque Constant
±10%
(oz-in / Amp)
4.6 9.2 18.5 35.0 9.7 12.8 24.4 43.0 13.8 18.4 27.6 46.0
Torque Constant
±10%
(Ncm / Amp)
3.248 6.497 13.064 24.715 6.850 9.039 17.230 30.365 9.745 12.993 19.490 32.483
Resistance
±10%
(Ohms)
0.1 0.2 0.8 4.0 0.1 0.2 0.7 2.2 0.2 0.3 0.5 1.6
Inductance
±10%
(mH)
0.3 1.2 4.8 20.3 0.6 1.1 3.9 12.0 1.0 1.7 3.9 11.0

RP34 Outline Drawing

drawing_rp34.gif

RP34 Commutation Sequence

hall diagram