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28mm 4-20W small power coreless precious metal brushed dc motor XBD-2845

Short Description:

Model No: XBD-2845

The XBD-2845 Precious Metal Brushes DC Motor, its precious metal commutation has low current density and low contact resistance. This variant is particularly well-suited for low-power, battery-powered, and low-start-up voltage applications. It features small size, low noise, no iron loss, high efficiency and long motor life.

 


Product Detail

Product Tags

Product Introduction

The XBD-2845 precious metal brushed DC motor is compact and lightweight, can provide strong power and high torque for applications. It has a stable running and efficient operation. 

It provides high performance and reliability, with its coreless design offering several advantages over traditional motors. The lack of a core allows for higher torque and power density, as well as improved heat dissipation and vibration damping. Additionally, the metal brush commutation system ensures smooth and consistent output even in demanding applications.

Application

Sinbad coreless motor have a wide range of application such as robots, drones, medical equipment, automobiles, information and communications, power tools, beauty equipment, precision instruments and military industry.

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Advantage

- High torque: The XBD-2845 motor provides high torque output which makes it suitable for heavy duty applications.
- DC electric motor: Being a DC motor, it offers a smooth and consistent operation across various speeds.
- Efficient: The coreless design and efficient use of electricity ensures that the motor operates at a high level of efficiency, saving energy and reducing operating costs.
- Compact size: Despite its high torque output, the motor has a compact design which makes it easy to install in tight spaces.
- Versatile: The XBD-2845 motor can be used in a variety of applications including robotics, drones, and other small electric vehicles.

Parameter

Motor model                                     2845
Brush material                                   precious metal
At nominal
Nominal voltage V

6

12

24

48

Nominal speed rpm

5336

5394

5568

6090

Nominal current A

0.67

0.80

0.59

0.29

Nominal torque mNm

6.09

14.30

20.33

18.56

Free load

No-load speed rpm

5800

6200

6400

7000

No-load current mA

45

25

16

10

At max efficiency

Max efficiency %

85.4

87.5

88.3

87.0

Speed rpm

5394

5828

5984

6545

Current A

0.588

0.384

0.301

0.152

Torque mNm

5.3

6.6

10.2

9.3

At max output power

Max output power W

11.6

17.9

26.2

26.2

Speed rpm

2900

3100

3200

3500

Current A

3.9

3.0

2.2

1.1

Torque mNm

38.1

55.0

78.2

71.4

At stall

Stall current A

7.80

6.00

4.40

2.20

Stall torque mNm

76.2

110.0

156.4

142.8

Motor constants

Terminal resistance Ω

0.77

2.00

5.45

21.82

Terminal inductance mH

0.053

0.160

0.550

2.100

Torque constant mNm/A

9.82

18.41

35.68

65.18

Speed constant rpm/V

966.7

516.7

266.7

145.8

Speed/Torque constant rpm/mNm

76.1

56.4

40.9

49.0

Mechanical time constant ms

6.66

6.28

4.78

6.00

Rotor inertia c

8.35

11.47

11.16

11.69

Number of pole pairs                        1
Number of phase                               7
Weight of motor           g 145
Typical noise level dB ≤38

Samples

Structures

DCStructure01

FAQ

Q1. Are you a trading company or manufacturer?

A: Yes. We are a manufacturer specializing in Coreless DC Motor since 2011.

Q2: How do you control the quality?

A: We have QC team comply with TQM, each step is in compliance to the standards.

Q3. What is your MOQ?

A: Normally, MOQ=100pcs. But small batch 3-5 piece is accepted.

Q4. How about Sample order?

A: Sample is available for you. please contact us for details. Once we charge you sample fee, please feel easy, it will be refund when you place mass order.

Q5. How to order?

A: send us inquiry → receive our quotation → negotiate details → confirm the sample → sign contract/deposit → mass production → cargo ready → balance/delivery → further cooperation.

Q6. How long is the Delivery?

A: Delivery time depends on the quantity you order. usually it takes 30~45 calendar days.

Q7. How to pay the money?

A: We accept T/T in advance. Also we have different bank account for receiving money, like US dollors or RMB etc.

Q8: How to confirm the payment?

A: We accept payment by T/T, PayPal, the other payment ways also could be accepted,Please contact us before you pay by the other payment ways. Also 30-50% deposit is available, the balance money should be paid before shipping.


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