Kondo Kagaku · Japan · Desktop

KHR-3HV

Name: Kondo Kagaku KHR-3HV
Brand: Kondo Kagaku

Hobby kitConsumer availableShipping now

A 40 cm bipedal servo kit from Kondo Kagaku in Japan, sold in 17-axis form (17 metal-gear servos) and a 22-axis form. The buyer builds it, loads motions from a Windows program and can add radio, gyro and extra servos.

$786

Verified this month

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What is in the crate

8 included|4 not included

Hands

No hands, none offered

The kit contents list no hands or grippers.

In the crate

Light aluminium alloy frame (anodised) and reinforced resin servo arms RCB-4HV control board 17 KRS-2552R3HV ICS servos ROBO Power Cell F3-850 Li-Fe battery G3 Charger Dual USB adapter HS Black servo leads and other parts Assembly manual and HeartToHeart4 software by download

You still have to add

Gyro or accelerometer sensors (RAS-3 set 4,180 yen at Robospot) The five extra servos for 22 axes (36,080 yen) Assembly is done by the buyer, taking 1 day for an experienced builder and 2 to 3 days normally, per Kondo Software and support in English: the shop and support are Japanese-language, software needs Windows 10 or 11

Day oneAfter the buyer assembles it with a screwdriver, it walks and plays the supplied motions once motions are loaded from the HeartToHeart4 software over USB.

Reality check

The kit alone has no radio controller or sensors, and the maker's own shop only delivers inside Japan, so a buyer abroad should find a forwarder before paying 136,400 yen.

Can you get one, and what will it cost?

A planning estimate with machine, freight, duty, and tax shown separately.

Unconfirmed

Delivery to United States needs seller confirmation.

We do not have a confirmed shipping route for the KHR-3HV to United States. Coverage in another country does not establish delivery here, so no delivered total is shown.

Same as the EU: Kondo's shop is Japan-only, Vstone does not state export terms, and no US dealer listing was found.

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Import requirements for United StatesConformity, battery shipping, paperwork, and source documents. Review before ordering.

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Where to buy

Catalog checked 2026-11

Individuals and companies can inquire. Confirm the configuration, stock, and delivery with the seller.

Kondo's own Robospot shop sells to addresses in Japan only, in Japanese only, and says it may refuse buyers who plan to take the product abroad and will stop shipment of purchases made to export. Vstone's robot shop is also a Japanese-language shop; no listing on it says whether it ships abroad.

Price notes: Kondo lists every KHR price as 'open' (no list price) on its own product pages. Real prices are in its Robospot web shop and at dealers, all yen incl. 10% tax, shipping not included (Robospot: free shipping at 30,000 yen excl. tax or more, Japan only). Editions found: (1) KHR-3HV Ver.3.1 Li-Fe battery set 03234, standard 17 axes: 136,400 yen (Robospot and Vstone robot shop). (2) KHR-3HV Ver.3.1 22-axis version 03243 (the set plus five extra servos): 172,480 yen at Robospot (2 left on the 2026-05-10 copy). Vstone sells the same upgrade as an option: +36,080 yen for the 5-servo expansion set (136,400 + 36,080 = 172,480). (3) Robospot Standard Set (Ver.2) 06176, adds radio controller, gyro and a spare battery: 172,920 yen. (4) Robospot Full Option Set (Ver.2), adds 5 extra servos, radio and sensors: 209,000 yen. Vstone also offers add-ons: radio controller +18,150 yen, gyro plus accelerometer +14,080 yen, assembled version +21,670 yen. A separate Li-Fe battery edition does not exist: the Li-Fe battery is included in the base set. Older editions (Ver.2 at 125,400 yen, Ver.3 at 125,400 yen) are discontinued. Headline: JPY 124,000 before Japan's 10% consumption tax (JPY 136,400 with it), about $786 at the catalog's rate; Kondo publishes no dollar or euro price.

Dealers in 1 more country (3)

Kondo Robospot (opens in a new tab)
Seller in Japan
Ver.3.1 (17 axes)
Orders accepted; confirm dispatch · Checked 2026-04-15
Read from an archive.org copy dated 2026-04-15 (live fetch from here fails, the maker's site returns 403 to scripts). 10 left then, 4 left on the 2026-05-10 copy of the list page. Japan delivery only, Japanese-language support only.
¥136,400
Listed purchase price, incl. consumption tax
Kondo Robospot (opens in a new tab)
Seller in Japan
Ver.3.1 22-axis version
Orders accepted; confirm dispatch · Checked 2026-05-10
Archive.org copy of the shop list dated 2026-05-10 showed 2 left. Same Japan-only terms.
¥172,480
Listed purchase price, incl. consumption tax
Vstone Robot Shop (opens in a new tab)
Seller in Japan
Ver.3.1 (17 axes)
Orders accepted; confirm dispatch · Checked 2026-11-03
Opened live. Page shows 'add to cart' and no sold-out label. Page does not show a stock count and does not say whether it ships abroad. Options on the same page: 22-axis expansion +JPY 36,080, assembled +JPY 21,670.
¥136,400
Listed purchase price, incl. consumption tax

Prices remain in the seller’s listed currency. Tax, freight, options, and rental periods follow each seller’s terms. A seller’s region does not guarantee delivery to your address.

How the KHR-3HV rates

Editorial ratings based on listed specifications and sales availability. They do not measure task performance, autonomy, or reliability.

Class: Hobby kitAn entry-level kit or small robot for experimentation. Assembly, software access, and capabilities vary.
CapabilityHardware specification indicators: 2/5; Baseline: any humanoid+1
Degrees of freedom: 17 DOF+0.5
Dexterity: no hands, none offered0
Scale: 40.1 cm tall0
MaturitySales availability indicators: 5/5; How it sells: shipping now+4
Buyer access: individual ordering route+1

Key specifications

Height

40.1 cm

Width

19.4 cm

Depth

12.9 cm

Weight

1.5 kg

Degrees of freedom

Battery

n/a

Payload

n/a

Top speed

n/a

Understand before you buy

Featured in

The maker's shares

All makers

Kondo Kagaku: Private: its shares do not trade on any exchange.

Kondo Kagaku Co., Ltd., the Japanese maker of the KHR and KXR hobby humanoid kits and the KRS servos. We found no listing, IPO filing or outside funding round.

Size to scale

Drawn next to a 1.80 m (5 ft 11 in) person. Every robot on the site uses this same reference, so you can trust the comparison at a glance.

KHR-3HV: 40.1 cm / 1 ft 4 in, 1.5 kg

Footprint: 19.4 cm wide x 12.9 cm deep

About the KHR-3HVbackground, hardware and buying reality

The KHR-3HV is Kondo's long-running hobby biped, first released in 2009. Ver.3.1 uses the KRS-2552R3HV servo with full metal gears, an aluminium frame, an RCB-4HV board and an included Li-Fe battery. Finished size is 401 x 194 x 129 mm and weight about 1.5 kg (about 1.8 kg with five extra servos). Kondo lists it as made in Japan. The standard set is 17 axes; five dummy-servo positions add arm twist, hip twist and a waist axis for 22. The maker shows no list price: its own Japan-only shop sells the standard set for 136,400 yen incl. tax, the 22-axis version for 172,480 yen, and bundles with radio and sensors up to 209,000 yen.

What it does on day onewith zero programming

After the buyer assembles it with a screwdriver, it walks and plays the supplied motions once motions are loaded from the HeartToHeart4 software over USB. Without the optional radio controller it is driven from a PC.

Best for: A hobbyist or competition builder in Japan who wants a metal-geared, expandable biped kit and reads Japanese.

Documented uses

Learn and tinker

Kondo documents HeartToHeart4 motion creation by mouse and a dedicated HeartToHeart4 lesson page for builders.

Windows-only, Japanese-language, no SDK, ROS or manipulation documented for this edition.

Source reviewed 2026-11-03

Assessment from published documentation, not an independent performance test. Applies to the configuration described above.

What it takes to developskills, gear, and SDK access

A Windows 10 or 11 PC with USB (HeartToHeart4 motion software, mouse operated, no programming language needed per Kondo), a Phillips screwdriver, and patience for Japanese-language documentation. Kondo's site lists servo (ICS/KRS) and RCB board development documents.

SDK access: Motion programming through Kondo's HeartToHeart4 on Windows. Kondo's support menu lists ICS/KRS servo and RCB board development documents; I could not open the documents themselves, so ROS or open-source support is not established.

Sources and verificationchecked 2026-11

Sources

Price and availability verified 2026-11. Spotted a change? Tell us and we fix the listing.

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