RP34 BLDC Motor
RapidPower™ Series

Summary Details

Size: NEMA 34
Peak Torque: to 1095 oz-in or 773 Ncm

Great performance at an affordable price
The ElectroCraft RapidPower™ RP34 is a compact, high-performance brushless motor that incorporates ball-bearing construction and a low-cogging electro-magnetic design that produces low audible and magnetic noise. It is compatible with three-phase brushless DC motor drives and is available with a variety of encoders for precision positioning 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
Mount Hole
Pattern
Mount Hole
Spacing
Flange
External
Dimension 
Rear Shaft
Diameter
Rear Shaft
Length
Differential
Encoder
Length
RP34-112 2.84 in 0.375 in 1.25 in 2.875 in 0.06 in 0.22 in
thru holes
2.74 in 3.4 in 0.25 in 0.5 in 0.55 in
RP34-217 4.15 in
RP34-313 5.47 in
RP34-79 72 mm 14 mm 30 mm 80 mm 1.5 mm 7 mm
thru holes
70.7 mm 86 mm 6.35 mm 12.6 mm 14 mm
RP34-153 105 mm
RP34-221 139 mm
Technical Drawings

RP34 Speed / Torque Curves

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RP34 Mechanical / Winding Data

RP34 Stack Size and Winding Models
Specifications RP34-
112V24
RP34-
112V48
RP34-
112V90
RP34-
112V160
RP34-
217V24
RP34-
217V48
RP34-
217V90
RP34-
217V160
RP34-
313V24
RP34-
313V48
RP34-
313V90
RP34-
313V160
RP34M-
79V24
RP34M-
79V48
RP34M-
79V90
RP34M-
79V160
RP34M-
153V24
RP34M-
153V48
RP34M-
153V90
RP34M-
153V160
RP34M-
221V24
RP34M-
221V48
RP34M-
221V90
RP34M-
221V160
Design Voltage (VDC) 24 48 90 160 24 48 90 160 24 48 90 160
No load speed (RPM) 7,100 7,000 6,600 5,800 3,500 5,050 4,900 5,030 2,350 3,530 4,410 4,480
Peak Torque (oz-in) 392 392 392 392 740 759 759 759 940 1,095 1,095 1,095
Peak Torque (Ncm) 277 277 277 277 522 536 536 536 664 773 773 773
Peak Current (Amps) 85.2 42.6 21.2 11.2 76.0 59.1 31.1 17.6 68.1 59.5 39.7 23.8
Continuous Stall Torque (oz-in) 112 217 313
Continuous Stall Torque (Ncm) 79 153 221
Continuous Stall 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
Continuous Rated Torque (oz-in) 29.0 29.0 31.0 33.0 120.0 71.0 72.0 71.0 216.0 226.0 168.0 156.0
Continuous Rated Torque (Ncm) 20.5 20.5 21.9 23.3 84.7 50.1 50.8 50.1 152.5 159.6 118.6 110.1
Continuous Rated Current (Amps) 7.8 4.3 2.3 1.0 12.5 6.9 3.7 1.7 14.7 11.4 6.9 3.3
Continuous Rated Speed (RPM) 6,390 6,760 6,300 5,200 2,740 4,730 4,660 4,455 1,680 2,600 3,990 3,740
Voltage Constant (V / kRPM) 3.4 6.8 13.7 27.6 6.9 9.5 18.1 31.8 10.2 13.6 20.4 35.7
Torque Constant (oz-in / Amp) 4.6 9.2 18.5 37.3 9.3 12.8 24.4 43.0 13.8 18.4 27.6 48.2
Torque Constant (Ncm / Amp) 3.3 6.5 13.1 26.3 6.5 9.0 17.2 30.4 9.7 13.0 19.5 34.0
Resistance (Ohms) 0.1 0.2 0.8 4.0 0.1 0.2 0.6 2.3 0.2 0.3 0.5 1.6
Inductance (mH) 0.3 1.2 4.8 20.3 0.7 1.1 3.9 13.4 1.0 1.7 3.9 11.0
Motor Constant (oz-in / √ Watt) 15.1 19.3 20.4 17.4 29.8 27.2 30.4 29.0 34.5 31.5 35.5 36.5
Motor Constant (Ncm / √ Watt) 10.7 13.6 14.4 12.3 21.0 19.2 21.5 20.5 24.4 22.2 25.1 25.8
Electrical Constant (msec) 4.8 5.5 6.0
Mechanical Constant (msec) 6.7 4.3 4.4
Rotor inertia (oz-in-sec²) 0.0149 0.0258 0.0385
Rotor inertia (g-cm²) 1,052.2 1,822.0 2,718.9
Thermal Resistance (C / Watt) 2.0 1.5 1.0
Weight (oz) 64.0 100.0 143.0
Weight (Kg) 1.8 2.8 4.1
Length (inch) 2.8 4.2 5.5
Length (mm) 71.1 106.7 139.7
Number of Poles 4 4 4
connection diagram
connection 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