Product details

DM-JH11-51-2EC

Actuators & Joint Modules

Shenzhen Damao Technology Co., Ltd.

DM-JH11-51-2EC

About this product

DM-JH11-51-2EC is a DAMIAO integrated harmonic robot-joint actuator with a 51:1 reduction ratio, a hollow central bore, dual encoders and an integrated drive. The manufacturer publishes 3.2 N m rated output torque and 7.8 N m peak torque, with 40 rpm rated output speed; permitted peak duration is unspecified. It has a nominal 24 V rating and supports 24–48 V supplies, CAN FD communication up to 5 Mbps, and UART parameter tuning. The manufacturer gallery photograph shows the JH11 51:1 example of this shared mechanical series; its printed model label is preserved. An exact release date is not verified. Cover image: Manufacturer series image; size may vary.

Model
DM-JH11-51-2EC
Category
Actuators & Joint Modules, Components

Product family: DM-JH11 harmonic joint actuators

Specifications & evidence

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

Can communication-loss protection

Exits enabled mode if no CAN instruction arrives within the configured interval

Manufacturer specification

Configuration: DM-JH11-51-2EC; Timeout interval is configurable; no numerical default is stated.

DAMIAO JH11 technical parameter table
通讯丢失防护,设定周期内没有收到CAN指令将自动退出“使能模式”

Can feedback

Motor speed, position, torque and temperature

Manufacturer specification

Configuration: DM-JH11-51-2EC; Exact-model official product-page feature statement.

DM-JH11-51-2EC / DM-JH11-101-2EC_谐波关节电机_产品中心_深圳市达妙科技有限公司
可通过CAN总线反馈电机速度、位置、转矩、电机温度等信息。

Can upgrade

Supported

Manufacturer specification

Configuration: DM-JH11-51-2EC; Exact-model official product-page feature statement.

DM-JH11-51-2EC / DM-JH11-101-2EC_谐波关节电机_产品中心_深圳市达妙科技有限公司
支持CAN升级。

Central bore size

8.5 mm

Manufacturer specification

Configuration: DM-JH11-51-2EC; Shared manufacturer table dimension for both reduction ratios.

DAMIAO JH11 technical parameter table
中孔尺寸 8.5mm

Control interface

CAN; maximum 5 Mbps

Manufacturer specification

Configuration: DM-JH11-51-2EC; Table interface wording; the product-page feature text explicitly identifies CAN FD for the 5 Mbps maximum.

DAMIAO JH11 technical parameter table
控制接口 CAN@5Mbps(Max)

Control modes

MIT; speed; position; hybrid force-position; cyclic synchronous position; cyclic synchronous velocity; cyclic synchronous torque

Manufacturer specification

Configuration: DM-JH11-51-2EC; Control-mode names translated from this exact size table; position-speed is only printed for JH17, while JH11/JH14 print position.

DAMIAO JH11 technical parameter table
控制模式 MIT 模式 速度模式 位置模式 力位混控模式 周期同步位置模式 周期同步速度模式 周期同步转矩模式

Drive overtemperature protection

100 degC

Manufacturer specification

Configuration: DM-JH11-51-2EC; Protection threshold; overheating exits enabled mode. Not an ambient operating-temperature rating.

DAMIAO JH11 technical parameter table
驱动过温防护,防护温度:100°C,过温电机将退出“使能模式”

Encoder count

2

Manufacturer specification

Configuration: DM-JH11-51-2EC; Shared table value for the integrated actuator.

DAMIAO JH11 technical parameter table
编码器个数 2

Encoder resolution

17 bit

Manufacturer specification

Configuration: DM-JH11-51-2EC; Encoder bit count; not itself an accuracy rating.

DAMIAO JH11 technical parameter table
编码器位数 17 位

Encoder type

Dual single-turn encoders

Manufacturer specification

Configuration: DM-JH11-51-2EC; Manufacturer table wording; no magnetic/optical sensing technology is inferred.

DAMIAO JH11 technical parameter table
编码器类型 双编(单圈)

Height

60 mm

Manufacturer specification

Configuration: DM-JH11-51-2EC; Shared manufacturer table dimension for both reduction ratios.

DAMIAO JH11 technical parameter table
高度 60mm

Housing-side mounting pitch-circle callout

47

Manufacturer specification

Configuration: DM-JH11-51-2EC; Diameter callout adjoining the eight M2.5 holes. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
47

Housing-side mounting thread pattern

8 × M2.5

Manufacturer specification

Configuration: DM-JH11-51-2EC; Eight threaded holes shown on the outer mounting circle. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
8×M2.5

Housing-side thread depth callout

6max

Manufacturer specification

Configuration: DM-JH11-51-2EC; Depth callout adjoining the eight M2.5 holes. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
6max

Integrated drive

Motor and drive integrated

Manufacturer specification

Configuration: DM-JH11-51-2EC; Exact-model official product-page feature statement.

DM-JH11-51-2EC / DM-JH11-101-2EC_谐波关节电机_产品中心_深圳市达妙科技有限公司
电机和驱动器一体化设计,结构紧凑,集成度高。

Locating pin projection callout

1.5–1.8

Manufacturer specification

Configuration: DM-JH11-51-2EC; Projection span shown at the output face; preserved as a drawing callout. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
1.5~1.8

Main housing axial span callout

53.5

Manufacturer specification

Configuration: DM-JH11-51-2EC; Axial span to the front housing shoulder; not the complete assembly envelope. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
53.5

Maximum can fd bitrate

5 Mbps

Manufacturer specification

Configuration: DM-JH11-51-2EC; Maximum CAN FD bitrate; network configuration and wiring conditions are not stated.

DM-JH11-51-2EC / DM-JH11-101-2EC_谐波关节电机_产品中心_深圳市达妙科技有限公司
支持CAN FD,最大波特率5Mbps。

Maximum permitted output speed

60 rpm

Manufacturer specification

Configuration: DM-JH11-51-2EC; Maximum permitted speed, not labelled as a no-load speed; other conditions are unspecified.

DAMIAO JH11 technical parameter table
容许最大转速 60rpm | 30rpm

Motor mass

345 g

Manufacturer specification

Configuration: DM-JH11-51-2EC; Approximate mass as published; accessory inclusion is not stated.

DAMIAO JH11 technical parameter table
电机重量 约 345g

Output flange diameter callout

40

Manufacturer specification

Configuration: DM-JH11-51-2EC; Output flange diameter, separate from the 52 mm overall diameter in the parameter table. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
40

Output locating pin pattern

2 × diameter 2; +0.015/-0.005

Manufacturer specification

Configuration: DM-JH11-51-2EC; Two locating-pin positions and the printed diameter tolerance. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
2×⌀2 +0.015 -0.005

Output position retention

Single-turn absolute output position retained across power loss

Manufacturer specification

Configuration: DM-JH11-51-2EC; Exact-model official product-page feature statement.

DM-JH11-51-2EC / DM-JH11-101-2EC_谐波关节电机_产品中心_深圳市达妙科技有限公司
双编码器,输出轴单圈绝对位置,不惧掉电输出轴绝对位置丢失。

Output-side mounting pitch-circle callout

34

Manufacturer specification

Configuration: DM-JH11-51-2EC; Diameter callout adjoining the six M3 holes. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
34

Output-side mounting thread pattern

6 × M3

Manufacturer specification

Configuration: DM-JH11-51-2EC; Six threaded holes shown on the output face. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
6×M3

Output-side thread depth callout

3.5max

Manufacturer specification

Configuration: DM-JH11-51-2EC; Depth callout adjoining the six M3 holes. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
3.5max

Outside diameter

52 mm

Manufacturer specification

Configuration: DM-JH11-51-2EC; Shared manufacturer table dimension for both reduction ratios.

DAMIAO JH11 technical parameter table
外径 52mm

Overcurrent protection recommendation

Configurable; recommended value no more than 0.98 (unit not specified)

Manufacturer specification

Configuration: DM-JH11-51-2EC; Overcurrent exits enabled mode. The manufacturer does not define the unit or parameter scale of 0.98; it is not interpreted as amperes or percent.

DAMIAO JH11 technical parameter table
电机过流防护,根据使用需求设定,建议不超过0.98,过流将退出“使能模式”

Parameter access

Visual host tuning and CAN parameter read/write

Manufacturer specification

Configuration: DM-JH11-51-2EC; Exact-model official product-page feature statement.

DM-JH11-51-2EC / DM-JH11-101-2EC_谐波关节电机_产品中心_深圳市达妙科技有限公司
支持上位机可视化调试,支持CAN读写参数。

Parameter-tuning interface

UART at 921600 bps

Manufacturer specification

Configuration: DM-JH11-51-2EC; Manufacturer parameter-tuning interface rate.

DAMIAO JH11 technical parameter table
调参接口 UART@921600bps

Peak output torque

7.8 N m

Manufacturer specification

Configuration: DM-JH11-51-2EC; Peak output torque; permitted duration and duty cycle are not specified.

DAMIAO JH11 technical parameter table
峰值扭矩 7.8NM | 10.5NM

Peak phase current

4.26 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 24 V supply; Peak current; permitted peak duration and duty cycle are not specified.

DAMIAO JH11 technical parameter table
峰值相/电源电流 4.26A/4.25A@24V; 4.26A/1.85A@48V; | 3.6A/2.2A@24V; 3.6A/1.0A@48V;

Peak phase current

4.26 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 48 V supply; Peak current; permitted peak duration and duty cycle are not specified.

DAMIAO JH11 technical parameter table
峰值相/电源电流 4.26A/4.25A@24V; 4.26A/1.85A@48V; | 3.6A/2.2A@24V; 3.6A/1.0A@48V;

Peak supply current

4.25 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 24 V supply; Peak current; permitted peak duration and duty cycle are not specified.

DAMIAO JH11 technical parameter table
峰值相/电源电流 4.26A/4.25A@24V; 4.26A/1.85A@48V; | 3.6A/2.2A@24V; 3.6A/1.0A@48V;

Peak supply current

1.85 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 48 V supply; Peak current; permitted peak duration and duty cycle are not specified.

DAMIAO JH11 technical parameter table
峰值相/电源电流 4.26A/4.25A@24V; 4.26A/1.85A@48V; | 3.6A/2.2A@24V; 3.6A/1.0A@48V;

Phase inductance

538 uH

Manufacturer specification

Configuration: DM-JH11-51-2EC; At 25 degrees C; measurement method is not stated.

DAMIAO JH11 technical parameter table
相电感 538uH(@25°C)

Phase resistance

1.1 ohm

Manufacturer specification

Configuration: DM-JH11-51-2EC; At 25 degrees C; measurement method is not stated.

DAMIAO JH11 technical parameter table
相电阻 1.1Ω(@25°C)

Pole pairs

7

Manufacturer specification

Configuration: DM-JH11-51-2EC; Shared cell spans both named reduction-ratio models.

DAMIAO JH11 technical parameter table
极对数 7

Rated output speed

40 rpm

Manufacturer specification

Configuration: DM-JH11-51-2EC; Rated speed for this reduction-ratio model; the shared table does not distinguish supply-voltage configurations for this row.

DAMIAO JH11 technical parameter table
额定转速 40rpm | 20rpm

Rated output torque

3.2 N m

Manufacturer specification

Configuration: DM-JH11-51-2EC; Rated output torque; mounting and thermal conditions are not specified.

DAMIAO JH11 technical parameter table
额定扭矩 3.2NM | 4.8NM

Rated phase current

2.23 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 24 V supply; Rated current; test temperature, mounting and duty conditions are not specified.

DAMIAO JH11 technical parameter table
额定相/电源电流 2.23A/1.19A@24V; 2.23A/0.54A@48V; | 2.3A/1.0A@24V; 2.3A/0.5A@48V;

Rated phase current

2.23 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 48 V supply; Rated current; test temperature, mounting and duty conditions are not specified.

DAMIAO JH11 technical parameter table
额定相/电源电流 2.23A/1.19A@24V; 2.23A/0.54A@48V; | 2.3A/1.0A@24V; 2.3A/0.5A@48V;

Rated supply current

1.19 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 24 V supply; Rated current; test temperature, mounting and duty conditions are not specified.

DAMIAO JH11 technical parameter table
额定相/电源电流 2.23A/1.19A@24V; 2.23A/0.54A@48V; | 2.3A/1.0A@24V; 2.3A/0.5A@48V;

Rated supply current

0.54 A

Manufacturer specification

Configuration: DM-JH11-51-2EC; 48 V supply; Rated current; test temperature, mounting and duty conditions are not specified.

DAMIAO JH11 technical parameter table
额定相/电源电流 2.23A/1.19A@24V; 2.23A/0.54A@48V; | 2.3A/1.0A@24V; 2.3A/0.5A@48V;

Rated voltage

24 V

Manufacturer specification

Configuration: DM-JH11-51-2EC; Nominal rated voltage; the same source separately states a supported 24–48 V supply range.

DAMIAO JH11 technical parameter table
额定电压 24V(支持24-48V)

Recommended motor overtemperature setting maximum

90 degC

Manufacturer specification

Configuration: DM-JH11-51-2EC; Configurable protection setting; recommended maximum 90 degrees C. Overheating exits enabled mode.

DAMIAO JH11 technical parameter table
电机过温防护,根据使用需求设定,建议不超过90°C,过温电机将退出“使能模式”

Recommended overvoltage protection setting maximum

54 V

Manufacturer specification

Configuration: DM-JH11-51-2EC; Configurable protection setting; recommended maximum 54 V. Overvoltage exits enabled mode. This is not the supported operating-voltage maximum.

DAMIAO JH11 technical parameter table
电机过压防护,根据使用需求设定,建议不超过54V,过压将退出“使能模式”

Reduction ratio

51:1

Manufacturer specification

Configuration: DM-JH11-51-2EC; Manufacturer ratio notation retained.

DAMIAO JH11 technical parameter table
减速比 51:1 | 101:1

Supply-voltage floor in undervoltage instructions

20 V

Manufacturer specification

Configuration: DM-JH11-51-2EC; Protection guidance says the supply is not below 20 V and exits enabled mode below a configured threshold. The normal supported range remains 24–48 V; 20 V is not asserted to be a new operating-range minimum.

DAMIAO JH11 technical parameter table
电机欠压防护,若电源电压低于设定值,则退出“使能模式”,电源电压不低于20V

Supported supply voltage

24–48 V

Manufacturer specification

Configuration: DM-JH11-51-2EC; Supported range from the rated-voltage row; protection threshold guidance is recorded separately.

DAMIAO JH11 technical parameter table
额定电压 24V(支持24-48V)

Thermal protection

Dual temperature protection

Manufacturer specification

Configuration: DM-JH11-51-2EC; Exact-model official product-page feature statement.

DM-JH11-51-2EC / DM-JH11-101-2EC_谐波关节电机_产品中心_深圳市达妙科技有限公司
具有双温度保护功能。

Through-bore diameter tolerance callout

8.5; +0.1/0

Manufacturer specification

Configuration: DM-JH11-51-2EC; The rear view identifies this bore as through. Drawing linear units are not printed in this image; this is a literal callout, not an inferred millimetre specification.

DAMIAO JH11 mechanical drawing
⌀8.5 +0.1 0

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