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Yuejia Lingdong

YJ30Max

A quadruped robot from China.

Sources retrieved: 25 August 2026 (A)

Status
In production
Applications
IndustryInspectionSecurity and surveillanceDefence and emergency response
Intended use, per the manufacturer
。 Industry and security inspection Police patrolThe first quote is the YJ30Max's own product description (same page). Translated: (industry inspection) points to inspection; (fire-emergency response) to defense and emergency response; (work in complex environments) to industry. The other two quotes are from the page's shared section (the same three cards appear on all four YJ30-series product pages): (police patrol) points to security and surveillance. The third card, (power-line inspection), only repeats inspection.
Indicative price
42,859USD

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100150200 cm4060 in5320.9
Yuejia Lingdong YJ30Max, walking quadruped robot, field photo at an electrical transformer station
  1. Person
    175 cm68.9 in
  2. 89.6 cm35.3 inHeight
    53 cm20.9 in

Manufacturer's own photo.

Drawn at one scale next to a 175 cm person, from the figures the maker states: height 53 cm and length 89.6 cm.Drawn at one scale next to a 68.9 in person, from the figures the maker states, converted to inches: height 20.9 in and length 35.3 in.

Specifications

13/33 specifications disclosed 20 not stated

Not statedThe manufacturer states nothing about this field.NoStated: the robot does not have this.A marker with an asterisk (*) also carries a caveat.

Select a source marker for source details and notes.

Physical10/14 disclosed

Weight45kg99.2lbOur conversion from 45 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Length89.6cm35.3inOur conversion from 896 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Width63.5cm25inOur conversion from 635 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Height53cm20.9inOur conversion from 530 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Degrees of freedomNot stated
Payload, walking30kg66.1lbOur conversion from 30 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Payload, standing50kg110lbOur conversion from 50 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Max speed10.8km/h6.71mphOur conversion from 3 m/s. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Max slope50°
Max obstacle heightNot stated
Max stair height, continuous30cm11.8inOur conversion from 30 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
IP ratingIP67
Operating temperature, lowNot stated
Operating temperature, highNot stated

Power1/5 disclosed

BatteryNot stated
Runtime180–240minNote: load condition not stated
Hot-swap batteryNot stated
Charge timeNot stated
Docking stationNot stated

Sensing and autonomy1/6 disclosed

LiDARNot stated
CamerasNot stated
Onboard computeNot stated
ROS 2Not stated
SDK languagesNot stated
Autonomy featuresWIFI (yes); 4G&5G (yes); Image transmission (yes); Voice (yes); Navigation (yes)

Payload and expansion0/3 disclosed

Mounting interfaceNot stated
Power outNot stated
Data portsNot stated

Commercial1/1 disclosed

Indicative price42,859USD288,000CNY

Compliance & certifications0/4 disclosed

CENot stated
FCCNot stated
ULNot stated
CCCNot stated

Against the field

Each strip holds every robot of this type in the guide that states the figure, one bar per group of values. Further right means a larger figure, not a better robot.

Height

53cm20.9inOur conversion from 530 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

89 quadrupeds state a height

YJ30Max

51 state a higher figure, 35 a lower one.

Weight

45kg99.2lbOur conversion from 45 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

124 quadrupeds state a weight

YJ30Max

42 state a higher figure, 77 a lower one. 1 more states exactly the same figure. Log scale: each step along the axis multiplies the value.

Runtime

180–240minNote: load condition not stated

104 quadrupeds state a runtime

YJ30Max

YJ30Max states a range, not one figure, so it is shown as a band and not ranked against the others.

Indicative price

42,859USD

16 quadrupeds state a public price

YJ30Max

4 state a higher figure, 10 a lower one. Log scale: each step along the axis multiplies the value.

Max speed

10.8km/h6.71mphOur conversion from 3 m/s. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

113 quadrupeds state a top speed

YJ30Max

44 state a higher figure, 35 a lower one. 10 more state exactly the same figure.

Notes

The manufacturer's Chinese-language column heading translates to “climb angle” only; degrees of freedom is not mentioned anywhere on this model's page.

No LiDAR row appears in the manufacturer's own specification table, headed “basic parameters” in the original Chinese.

Sources

One line per source, not per figure: a source has one retrieval date.

  1. Ayuejialingdong.com/index.php/yuejiasizuxilie/57.htmlMain source. Retrieved 25 August 2026
  2. Becb.europa.eu/stats/eurofxref/eurofxref-daily.xmlRate: European Central Bank, Euro foreign exchange reference rates, 2026-08-31.. Retrieved 1 September 2026

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