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Inspire Robots RH56 (RH56DFX)

Beijing Inspire-Robots Technology · 2020

$5,783
AvailablePython from a laptop6 motors, 12 jointsUnitree G1/H1 optionFingertip force sensingRS-485 / CAN
Weeks+Shipping: 15–30 days (Knoxlabs).
Remote control: A laptop with a USB-to-RS-485 adapter writes position, speed and force-limit registers over Modbus RTU. Community Python libraries such as Sentdex's inspire_hands wrap this.

Overview

Inspire's best-selling humanoid hand, low-cost for its class and simple to drive, with coupled fingers and rough force sensing.

Beijing Inspire-Robots (founded 2016) makes the RH56 series of humanoid five-finger hands. The company calls the RH56DFX its model with the largest cumulative shipments, and it says it was the first to deliver over 10,000 dexterous hands. It is an optional hand for Unitree H1 and G1 humanoids, driven by Unitree's own controller service. Unitree's model files also cover the RH56DFQ and tactile RH56DFTP versions for G1 and H1-2.

The hand is underactuated, meaning it has fewer motors than joints. Six linear servo actuators (small motor-driven screw rods) pull linkages that bend 12 joints. Each actuator reports position and force, but a 2026 Correll Lab study found the force readings uncalibrated and force-limit overshoot of up to 1618% at high speed. Variants include the lighter BFX, the tactile E2 (Booster T1 compatible per Generation Robots) and newer F1 and H1 models. Inspire publishes no release date, so the 2020 year listed is (unconfirmed).

At a glance
Type
Robot hand or gripper · Research & humanoid hands
Maker
Beijing Inspire-Robots Technology
Released
2020
Price
$5,783
Status
Available
Best for
Professionals & labs
Programming
Full SDK

Price and shipping

Knoxlabs list price for one RH56DFX hand (left or right, RS-485, no wrist), checked October 2026. The 2-DOF wrist version with RS-485 or CAN is $8,353. The tactile RH56E2 is €6,758 excl. VAT (about $7,800, estimate) at Generation Robots and from $12,702 at Knoxlabs. Inspire also sells direct through [email protected].

Shipping: 15–30 days (Knoxlabs). Knoxlabs ships single hands in 15–30 days with shipping extra, and sales are final. Generation Robots lists the RH56E2 at 2–3 weeks. Mounting adapters, power supply and cables are not included unless itemized. Knoxlabs ↗

Specifications

CategoryRobot hands & grippers · Research & humanoid hands
Released2020
CountryChina
AvailabilityAvailable
SalesOver 10,000 dexterous hands delivered company-wide (all models, estimate) Shifair (CIIF 2026 exhibitor profile) ↗
ProgrammabilityFull SDK
Built-in autonomyNone / scripted · Moves only when controlled, or plays preset motions
LLM supportPossible via SDK · No built-in LLM. The documented register protocol lets an LLM agent on a host computer send finger positions and force limits.
MuJoCo simulationCommunity model · No official MJCF. A Correll Lab paper (2026) publishes a sim-to-real validated MuJoCo model of the RH56DFX, and dex-urdf has an Inspire hand URDF. Correll Lab RH56DFX project ↗
NVIDIA Isaac simulationCommunity model · Isaac Sim's asset-rigging tutorial ships an RH56DFX URDF as its sample digital twin. Unitree also publishes G1 URDFs with Inspire DFQ and FTP hands. Isaac Sim tutorial 1 ↗
Gazebo simulationNone found · Inspire's download page lists no URDF or Gazebo package. URDFs come from Unitree and the community. Inspire downloads ↗
Best forProfessionals & labs
Vision sensorsNo vision sensors
ActuatorsOther
AudioNo audio
Compute typeLaptop / PC as the brain
Remote controlPython from a laptop
Fingers5 (4 fingers + thumb)
DOF6 actuated, 12 joints (underactuated); 6+2 with the optional wrist
ActuationSix built-in micro linear servo actuators (one per finger, two for the thumb) drive coupled linkage fingers. The hand holds its pose when power is cut.
Grip force / payload10 N fingertip force (four fingers), 15 N thumb; wrist version carries 2 N·m excluding the hand
Weight540 g (650 g with wrist)
SensorsAbsolute position sensor and force sensor on each of the 6 actuators (0.5 N resolution), plus current and temperature readback. RH56DFTP and RH56E2 variants add fingertip and palm tactile arrays.
InterfaceRS-485 (Modbus RTU, 115200 bps default), CAN versions available; 12–48 V DC supply
SDKDocumented Modbus register protocol and Windows upper-computer software from Inspire. Unitree's DFX_inspire_service (DDS) for H1 and G1. Community Python and ROS 2 drivers.

Common questions

How much does Inspire Robots RH56 cost?

Inspire Robots RH56 is listed at $5,783. Knoxlabs list price for one RH56DFX hand (left or right, RS-485, no wrist), checked October 2026. The 2-DOF wrist version with RS-485 or CAN is $8,353. The tactile RH56E2 is €6,758 excl. VAT (about $7,800, estimate) at Generation Robots and from $12,702 at Knoxlabs. Inspire also sells direct through [email protected].

Can Inspire Robots RH56 be bought today?

Yes, it is on sale. Typical shipping time is 15–30 days (Knoxlabs). Knoxlabs ships single hands in 15–30 days with shipping extra, and sales are final. Generation Robots lists the RH56E2 at 2–3 weeks. Mounting adapters, power supply and cables are not included unless itemized.

Who makes Inspire Robots RH56?

Inspire Robots RH56 is made by Beijing Inspire-Robots Technology. It came out in 2020.

Can Inspire Robots RH56 be programmed?

Full SDK. Documented Modbus register protocol and Windows upper-computer software from Inspire. Unitree's DFX_inspire_service (DDS) for H1 and G1. Community Python and ROS 2 drivers.

Does Inspire Robots RH56 have AI chat or LLM support?

Possible via SDK. No built-in LLM. The documented register protocol lets an LLM agent on a host computer send finger positions and force limits.

Ratings & reviews

Similar robots

Sources

RH56 series user manual (PDF) ↗ · Knoxlabs store ↗ · Unitree DFX_inspire_service ↗ · Characterization paper (arXiv 2026) ↗

Image credits