Product details

DM-J8520P-2EC

Actuators & Joint Modules

Shenzhen Damao Technology Co., Ltd.

DM-J8520P-2EC

About this product

DM-J8520P-2EC is an integrated planetary joint motor with 50 Nm rated torque and 176 Nm peak torque in the current manufacturer table. It has a printed 20:1 reduction ratio, a 90 mm outer diameter and a 70 mm body height, with two 17-bit encoders and CAN control. This 48 V module uses inductive encoders and supports CAN up to 5 Mbps. The manufacturer warns against connecting a load-bearing structure through the rear-cover screws.

Model
DM-J8520P-2EC
Category
Actuators & Joint Modules, Components

Specifications & evidence

Source-backed claims. Configuration, workload and evidence type matter when comparing products.

Can communication-loss response

Motor disabled

Manufacturer specification

Configuration: Current official product-page protection table; Configurable watchdog interval; no numerical timeout is given in this page table.

DM-J8520P-2EC official product page and embedded table
设定周期内没有收到CAN指令将自动退出“使能模式”

Control interface

CAN@5 Mbps(MAX)

Manufacturer specification

Configuration: Current official product-page table; Printed maximum only where explicitly marked Max; configurable rates and protocol switching are separately source-qualified.

DM-J8520P-2EC official product page and embedded table
控制接口 CAN@5Mbps(MAX)

Control modes

MIT; Position-velocity; Velocity; Force-position hybrid

Manufacturer specification

Configuration: Current official product-page table; Exact current table modes; mode availability may depend on firmware.

DM-J8520P-2EC official product page and embedded table
控制模式 MIT模式;位置速度模式;速度模式;力位混控模式

Driver over-temperature trip

120 °C

Manufacturer specification

Configuration: Current official product-page protection table; Fixed driver protection threshold; disables the motor on over-temperature.

DM-J8520P-2EC official product page and embedded table
驱动过温防护,防护温度:120℃

Encoder count

2

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
编码器个数 2

Encoder resolution

17 bit

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
编码器位数 17位

Encoder type

Inductive

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
编码器类型 电感编码器

Height

70 mm

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
高度 70mm

Hollow center diameter callout

8

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; leader-line attribution independently crosschecked. Literal linear callout only: no overall drawing unit header is printed, so no millimetres are inferred.

DM-J8520P-2EC official product page and embedded table
8

Housing threaded-hole count

16

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; count read from the literal threaded-hole callout. No alternative hole pattern or product variant inferred.

DM-J8520P-2EC official product page and embedded table
16

Housing threaded-hole depth callout

8

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; leader-line attribution independently crosschecked. Literal linear callout only: no overall drawing unit header is printed, so no millimetres are inferred.

DM-J8520P-2EC official product page and embedded table
8

Housing threaded-hole nominal thread

M3

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; literal thread designation/class. Not an inferred length measurement.

DM-J8520P-2EC official product page and embedded table
M3

Maximum rotating mounting-face diameter callout

66

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; leader-line attribution independently crosschecked. Literal linear callout only: no overall drawing unit header is printed, so no millimetres are inferred.

DM-J8520P-2EC official product page and embedded table
66

Motor mass

1,392 g

Manufacturer specification

Configuration: Current official product-page table; Approximate mass, as printed; included cable/connector configuration is not stated.

DM-J8520P-2EC official product page and embedded table
电机重量 约1392g

Motor over-temperature recommendation

≤100 °C

Manufacturer specification

Configuration: Current official product-page protection table; User-configured protection recommendation; not an ambient operating-temperature rating.

DM-J8520P-2EC official product page and embedded table
建议不超过100℃

No-load output speed

124 rpm

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
空载最大转速 124RPM

Outer diameter

90 mm

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
外径 90mm

Output threaded-hole depth callout

7

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; leader-line attribution independently crosschecked. Literal linear callout only: no overall drawing unit header is printed, so no millimetres are inferred.

DM-J8520P-2EC official product page and embedded table
7

Output threaded-hole nominal thread

M5

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; literal thread designation/class. Not an inferred length measurement.

DM-J8520P-2EC official product page and embedded table
M5

Over-current protection recommendation

≤0.98

Manufacturer specification

Configuration: Current official product-page protection table; Literal protection-setting token; unit and normalization basis are not printed in this page row.

DM-J8520P-2EC official product page and embedded table
建议不超过0.98

Over-voltage protection recommendation

≤65 V

Manufacturer specification

Configuration: Current official product-page protection table; Configurable protection recommendation; not a rated supply limit.

DM-J8520P-2EC official product page and embedded table
建议不超过65V

Peak phase current

41.6 A

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
峰值相电流 41.60A

Peak supply current

23.28 A

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
峰值电源电流 23.28A

Peak torque

176 Nm

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
峰值扭矩 176NM

Phase inductance

75 μH

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
相电感 75uh

Phase resistance

0.1 Ω

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
相电阻 0.1Ω

Pole pairs

16

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
极对数 16

Rated output speed

120 rpm

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
额定转速 120rpm

Rated phase current

13.86 A

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
额定相电流 13.86A

Rated supply current

15.01 A

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
额定电源电流 15.01A

Rated torque

50 Nm

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
额定扭矩 50NM

Rated voltage

48 V

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
额定电压 48V

Rear-cover integration warning

Do not use rear-cover M3 threaded holes to connect load-bearing structures; this may damage the rear cover.

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Manufacturer integration warning printed directly below the rear-face drawing.

DM-J8520P-2EC official product page and embedded table
不建议后盖M3螺纹孔用作承载结构件的连接 易造成后盖结构损坏

Rear threaded-hole count

8

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; count read from the literal threaded-hole callout. No alternative hole pattern or product variant inferred.

DM-J8520P-2EC official product page and embedded table
8

Rear threaded-hole depth callout

8

Manufacturer specification

Configuration: Current official product-page mechanical drawing; Exact model and current page drawing; leader-line attribution independently crosschecked. Literal linear callout only: no overall drawing unit header is printed, so no millimetres are inferred.

DM-J8520P-2EC official product page and embedded table
8

Reduction ratio

20:1

Manufacturer specification

Configuration: Current official product-page table; Ratio orientation retained literally as printed; no model options or alternative ratio variants inferred.

DM-J8520P-2EC official product page and embedded table
减速比 20:1

Slots

32

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
槽数 32

Tuning interface

UART; 921600 bps

Manufacturer specification

Configuration: Current official product-page table; Exact current product-page table; test setup and continuous-duty conditions are not stated.

DM-J8520P-2EC official product page and embedded table
调参接口 UART@921600bps

Under-voltage supply floor

≥20 V

Manufacturer specification

Configuration: Current official product-page protection table; Under-voltage protection paragraph; nominal operating range remains separately specified.

DM-J8520P-2EC official product page and embedded table
电源电压不低于20V

Winding-temperature setting warning

Settings above 110°C may burn the winding

Manufacturer specification

Configuration: Current official product-page protection table; Protection-setting warning; not a safe continuous winding-temperature rating.

DM-J8520P-2EC official product page and embedded table
设置超过110℃,可能会烧毁线圈

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