ARX Bimanual Platform
Two X5 follower arms, two leader arms and cameras on one base. Move the leaders by hand, the X5 arms copy you, the cameras record. Built for ALOHA-style imitation learning and VLA fine-tuning data.
Card, Apple Pay, Google Pay, ACH and wire. Universities: order with a purchase order — we send a quote and W-9 within one business day.
- Ships from our US warehouse · 3–7 business days to the contiguous US · freight quoted by ZIP · no import duties or customs paperwork
- Open-source Python SDK (arx5-sdk, 500 Hz control) · URDF and STEP models published
- Sold by ARX Global, the global sales company of ARX Infinity (Beijing)
What you get, and why labs in the US buy it here
2 + 2
Follower and leader arms
Two ARX X5 follower arms (6 joints + gripper, torque sensing at every joint) and two matching leader arms, mounted and cabled on one base.
3–7 days
From a US warehouse
Stock sits in the United States. No import duties, no customs broker, no freight forwarder. Domestic ground freight is quoted by ZIP code and added at checkout.
PO ok
Procurement-friendly
US-dollar quote, W-9 and vendor details on request. Pay by purchase order, wire, ACH or card. Tax-exempt certificates accepted.
Collect, train, deploy on the same hardware
The platform is a leader–follower teleoperation station in the ALOHA layout. The same X5 arms that record demonstrations run the trained policy afterwards.
- TeleoperateHold the two leader arms; the X5 followers mirror your motion in real time over CAN.
- RecordJoint states, gripper commands, the mast camera and wrist cameras are logged per episode.
- TrainUse the episodes with ACT, Diffusion Policy, LeRobot-style pipelines or to fine-tune a VLA model.
- DeploySend actions back to the same arms with the joint or Cartesian controller in arx5-sdk.
Specifications
Platform
| Configuration | 2 × ARX X5 follower arms + 2 leader arms on one base |
|---|---|
| Perception | Top mast camera + wrist cameras |
| Control computer | One PC drives both followers over CAN (can0, can1); USB-CAN or EtherCAT-CAN adapters |
| Recommended OS | Ubuntu 24.04 with an NVIDIA GPU (ARX data pipeline) |
| Software | Open source: arx5-sdk (Stanford REAL Lab), ARX X5 Python SDK, URDF / STEP models |
| Price | $5,999 USD launch price (first 10 units in this store), then $6,999; freight quoted by ZIP code |
| Ships from | United States warehouse |
Follower arm — ARX X5
| Degrees of freedom | 6 + gripper |
|---|---|
| Actuation | Quasi-direct-drive motors, torque sensing at every joint |
| Peak payload | about 1 kg |
| Arm span | about 780 mm, base to gripper tip |
| Weight | about 3.4 kg with gripper |
| Housing | One-piece aluminium alloy |
| Encoders | Dual encoders; position retained after power loss |
| Control rate | 500 Hz joint control; motor communication latency about 0.4 ms |
| Gripper | 2025 dual-rail gripper |
Figures are ARX's published values; "about" marks values ARX states as approximate. Need a number that is not listed? Email us and we confirm it with your quote.
Software: Python from day one
No vendor lock-in. The X5 arms are driven by open-source code that many labs already use.
- arx5-sdk (Stanford REAL Lab): pip install arx5-interface; Python 3.8–3.14, x86_64 and aarch64; 500 Hz joint control; joint and Cartesian controllers; keyboard and SpaceMouse teleoperation and teach-and-replay examples; examples/test_bimanual.py runs both arms from one PC.
- ARX X5 SDK and ARX_Model on GitHub: ARX's own Python SDK plus URDF and STEP files for simulation and planning.
- Data pipeline: ARX's collect–train–deploy workflow on ROS 2 / Ubuntu 24.04.
Used in published robot-learning work
ARX arms appear in open research on imitation learning, mobile manipulation and VLA fine-tuning. A few examples (listing does not imply endorsement by the authors):
Full list with links: arx-global.us/research
Shipping from the US
- Stocked at our warehouse in the United States; orders are packed within 1–2 business days.
- Ground freight to the contiguous US, typically 3–7 business days; freight quoted by ZIP code. Alaska, Hawaii and Canada: quoted.
- No import duties, customs clearance or brokerage for US customers.
- Each shipment is insured; report transit damage within 48 hours of delivery.
Buying for a university or company?
Send a quote request and you get a formal USD quote, W-9 and vendor registration details within one business day. We invoice against your PO; net terms for accredited institutions are confirmed on the quote.
Request quote / POQuestions before you order
What is included in the price?
Two ARX X5 follower arms (6 joints plus gripper each), two leader arms, a top mast camera, wrist cameras, the base, and open-source software. We confirm the full packing list and cable set on your order confirmation.
Does the price include shipping?
No. The platform price excludes freight. Ground freight from our US warehouse is quoted by ZIP code and either added at checkout (when a flat rate is shown) or invoiced separately before shipment; we confirm the cost before anything ships.
How does the $5,999 launch price work?
The first 10 platforms sold in this store are $5,999 each. The counter on the product page shows how many launch units are left; once they are gone the price is $6,999 per platform. Launch units are allocated in order of payment or approved purchase order.
Where does it ship from, and how long does delivery take?
From our warehouse in the United States. Orders to the contiguous US typically arrive within 3–7 business days by ground freight. There are no import duties, customs forms or brokerage fees for US customers.
Can my university pay by purchase order?
Yes. Use the quote / PO form on this page. We reply with a formal quote, W-9 and vendor details, then invoice in US dollars against your PO. Wire transfer and ACH are also accepted.
Which arms are the followers, and what can they lift?
ARX X5 arms: 6 joints plus a gripper, torque sensing at every joint, about 1 kg peak payload, about 780 mm arm span from the base to the gripper tip, and about 3.4 kg per arm with the gripper.
How do I control it from Python?
Both X5 follower arms run from one computer over CAN (can0 and can1) with the open-source arx5-sdk from Stanford's REAL Lab (pip install arx5-interface; Python 3.8–3.14, x86_64 and aarch64; 500 Hz joint control, joint and Cartesian controllers). ARX also publishes its own X5 Python SDK and URDF/STEP models on GitHub.
What computer does it need?
ARX recommends Ubuntu 24.04 with an NVIDIA graphics card for its data-collection pipeline. The arms connect through USB-CAN or EtherCAT-CAN adapters. We confirm the exact requirements for your configuration with the order.
Is it compatible with ALOHA-style data collection and LeRobot?
The platform is a leader–follower station in the ALOHA layout: you move the two leader arms by hand and the X5 arms copy the motion while the cameras record. Recorded episodes can be used with ACT, Diffusion Policy, LeRobot-style pipelines and VLA fine-tuning; the arx5-sdk exposes joint states and commands in Python.
Is there sales tax?
Sales tax is calculated at checkout where we are required to collect it. Tax-exempt institutions can send their exemption certificate with a PO order.
What about warranty and support?
Warranty and support terms are stated on your quote and order confirmation. Email [email protected] before you buy if you need the current terms in writing for procurement.
Who is ARX Global?
ARX Global is the global sales company of ARX Infinity (Beijing), the maker of the X5, R5, LIFT and AC series. We sell and support ARX hardware globally and stock this platform in the United States.
Quote, purchase order or wire transfer
Prefer an invoice? Fill this in and we reply within one business day. Nothing is charged until you approve the quote.
Or email [email protected].
$5,999 · ships from the US · no import duties
Launch price for the first 10 units — 10 left, then $6,999.
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