RP34 BLDC Motor
RapidPower™ Series

Summary Details

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

Good-Performance. Good Price.
Our ElectroCraft RapidPower™ 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.

Additional Product Details

RP34 Outline Drawing

Model MAX
Length
A B C D E F G H I J
Front
Shaft
Diameter
Front
Shaft
Length
Pilot
Diameter
Pilot
Length
(Ref)
Mount Hole
Pattern
(Ref)
Mount
Hole
Spacing
(Ref)
Flange
External
Dimension
(Ref)
Rear Shaft
Diameter
Rear
Shaft
Length
Encoder
Length (Ref)
Single Ended
Differential
RP34-112 2.84 in 0.3750 in
0.3745 in
1.25 in
±0.03
2.875 in
2.873 in
0.06 in [4] 0.220 in ± 0.010
on 3.875 in D.B.C.
2.74 in 3.38 in 0.2500 in
0.2495 in
0.500 in
±0.040
0.35 in
0.55 in
RP34-217 4.15 in
RP34-313 5.47 in
RP34M-79 72 mm 14.000 mm
13.989 mm
30 mm
±0.8
80.012 mm
79.993 mm
1.5 mm [4] 7 mm +0.36/–0.00
on 3.875 in D.B.C.
70.71 mm 85.85 mm 6.3424 mm
6.3297 mm
11.4 mm
±0.7
8.9 mm
14.0 mm
RP34M-153 105 mm
RP34M-221 139 mm
Technical Drawings

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) 79 153 221
Peak Torque (oz-in) 392 759 1095
Peak Torque (Ncm) 277 536 773
Motor Constant (oz-in / √ Watt) 18.10 29.10 35.50
Motor Constant (Ncm / √ Watt) 12.78 20.55 25.07
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 (g-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 (mm) 71.1 106.7 139.7
Number of Poles 4 4 4

Winding Models 112V24 112V48 112V90 112V160 217V24 217V48 217V90 217V160 313V24 313V48 313V90 313V160
79V24 79V48 79V90 79V160 153V24 153V48 153V90 153V160 221V24 221V48 221V90 221V160
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 6.8
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 Connection

hall diagram

RP34 CAD

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ElectroCraft Rapid Delivery Program

Some versions of this product are available via ElectroCraft's Rapid Delivery Program. Lead times for these products are given in working days and stated below. Please note, these lead times may be exceeded during holiday periods or due to unforeseen circumstances. Always contact your local ElectroCraft representative for confirmation of availability.

Rapid delivery products are stocked in locations all over the World. If the product you require is not stocked in your region, you may request accelerated delivery from other areas. Please consult your local representative for more information.

Customers are responsible for all freight charges.

Rapid Delivery to:

Select the region where the product would be delivered to.

The Americas

Part Number Description Typical Lead Time
RP34-112V160-100-D 2 days
RP34-112V160-100-X 2 days
RP34-112V24-100-D 2 days
RP34-112V24-100-X 2 days
RP34-217V160-100-D 2 days
RP34-217V160-100-X 2 days
RP34-217V24-100-D 2 days
RP34-217V24-100-X 2 days
RP34-313V160-100-D 2 days
RP34-313V160-100-X 2 days
RP34-313V24-100-D 2 days
RP34-313V24-100-X 2 days

Europe, the Middle East and Africa

Part Number Description Typical Lead Time
No products available

Asia

Part Number Description Typical Lead Time
RP34-112V160-100-D 2 days
RP34-112V160-100-X 2 days
RP34-112V24-100-D 2 days
RP34-112V24-100-X 2 days
RP34-217V160-100-D 2 days
RP34-217V160-100-X 2 days
RP34-217V24-100-D 2 days
RP34-217V24-100-X 2 days
RP34-313V160-100-D 2 days
RP34-313V160-100-X 2 days
RP34-313V24-100-D 2 days
RP34-313V24-100-X 2 days