10 kg Payload | 0.5 N Force-Control Accuracy | ±0.05 mm Repeatability | Seven Degrees of Redundant Freedom

Introduction

The global robotics industry is rapidly evolving along two major trends.

The first is the continued advancement of industrial automation. As manufacturers increasingly adopt high-mix, low-volume production, robots must operate in confined spaces, handle irregular workpieces, and execute complex trajectories—tasks that often exceed the capabilities of conventional six-axis robots.

The second is the rapid rise of embodied intelligence. As humanoid robots move from research laboratories toward commercialization, the performance requirements for robotic joints have become increasingly demanding. Higher payload capacity, greater positioning accuracy, and more flexible kinematic configurations are now essential.

These two trends are converging around a common demand: high-performance seven-axis robotic arms.

Building on years of expertise in Delta robot technology, ATOMROBOT proudly introduces the newly upgraded SkyArms AR-A7 Seven-Axis Collaborative Force-Control Robotic Arm—a highly flexible robotic arm that combines a biomimetic structure, 10 kg payload, intelligent force control, and micron-level precision.

Every aspect of its development focuses on four key performance metrics: payload capacity, positioning accuracy, force-control precision, and workspace flexibility, bringing seven-axis robotics back to practical industrial applications.

Product Overview

The SkyArms AR-A7 is a 7-degree-of-freedom collaborative force-control robotic arm designed for industrial manufacturing, humanoid robotics, and scientific research & education.

Its core philosophy is to deliver outstanding payload capability together with highly sensitive force perception. In industrial environments, it serves as a powerful solution for medium- and heavy-duty operations in confined spaces. In humanoid robots, it functions as a high-performance arm joint with payload capabilities well above the current industry average.

Key Specifications

Hardware Architecture

Biomimetic Seven-Axis Structure

The SkyArms AR-A7 adopts a human-arm-inspired seven-axis serial architecture. Compared with a conventional six-axis robot, it adds an additional elbow joint, allowing the arm to maneuver around obstacles and adjust its posture without moving the robot base.

Each joint integrates a high-precision modular actuator capable of delivering a wide range of motion.

High-Performance Joint Modules

Each joint incorporates a high-performance frameless torque motor capable of speeds up to 6000 rpm, providing:

• High torque density
• Low rotational inertia
• Fast dynamic response

Combined with high-precision harmonic reducers, the arm maintains ±0.05 mm repeatability, even while carrying its full 10 kg payload.

High-Sensitivity Force Perception

The integrated force sensing system detects forces as small as 0.5 N, enabling compliant insertion, precision contact detection, and adaptive force control.

Whether performing precision assembly or force-controlled polishing, the robot automatically adjusts its posture to prevent excessive force, overshoot, or jamming.

Motion Control System

Proprietary Motion Algorithms

ATOMROBOT’s self-developed kinematics, dynamics, and vibration suppression algorithms deliver ±0.02 mm trajectory planning accuracy, ensuring exceptional path precision.

Adaptive Motion Compensation

Real-time dynamic error compensation improves vibration suppression by 30% compared with conventional control algorithms, significantly enhancing overall motion performance.

High-Speed Operation

With a maximum TCP speed of 1500 mm/s, the robot substantially shortens cycle times while maintaining excellent positioning accuracy.

Precision Control

Even during highly complex operations, the arm delivers consistently smooth motion and outstanding positional precision.

Software & Open Development Ecosystem

Open Control Interface

The robot provides comprehensive low-level control interfaces with support for both C++ and Python, enabling rapid deployment of proprietary algorithms.

Native EtherCAT Communication

The self-developed EtherCAT communication protocol allows seamless integration into existing industrial automation systems.

Graphical Programming

Users can create workflows simply by dragging and dropping functional blocks, eliminating the need for advanced programming knowledge.

Fast Deployment

Typical workstation integration can be completed in just three days, making deployment approximately five times faster than traditional robotic solutions.

Application Scenarios

Industrial Manufacturing — The Expert for Medium- and Heavy-Duty Operations

During CNC machine tending, conventional six-axis robots often cannot reach into confined machining spaces without adding external linear rails or customized fixtures.

Thanks to its redundant seventh axis, the SkyArms AR-A7 can naturally maneuver around obstacles and retrieve workpieces directly from compact storage bins before loading them into machine tools.

The same advantage applies to welding and painting applications, where complex workpiece geometries require exceptional posture flexibility. The robot can continuously adjust its end-effector orientation to avoid collisions with fixtures and workpieces during multi-angle operations.

In vision-guided random bin picking, the seven-axis configuration allows the arm to reach deep into containers and narrow cavities with ease.

Example: New Energy Vehicle Battery Pack Handling

Battery packs typically weigh 8–10 kg, perfectly matching the robot’s 10 kg rated payload.

Where conventional six-axis robots often require extended arms or external rails to reach into compact battery compartments, the SkyArms AR-A7 uses its redundant degree of freedom to pick battery packs directly from conveyors, avoid fixture interference, and place them precisely into trays.

As a result, deployment time can be reduced from several weeks to just a few days.

Humanoid Robots — A New Benchmark for High-Payload Arm Joints

Most humanoid robot arms currently available on the market offer payload capacities between 3 kg and 7 kg.

With its 10 kg payload, the SkyArms AR-A7 unlocks significantly more demanding physical interaction capabilities—from handling industrial components and operating professional tools to supporting advanced algorithm validation in laboratories and deployment in real-world environments.

Research & Education — An Open Platform for Innovation

Advanced research topics such as motion planning, obstacle avoidance, visual servoing, and humanoid robot control require an open platform offering high flexibility, high payload, and integrated force feedback.

The SkyArms AR-A7 provides complete low-level control interfaces together with support for multiple programming environments. Its highly accurate force sensing enables cleaner control models and more reliable experimental results.

About ATOMROBOT

Company Overview

• Founded: January 2013
• Headquarters: Tianjin, China
• Core Product Portfolio:
  • Delta robots
  • High-speed SCARA robots
  • Heavy-duty collaborative robots
  • Embodied intelligent robots

For more than 13 years, ATOMROBOT has focused on intelligent manufacturing, successfully transforming laboratory innovations into industrial products serving over 1,000 large-scale manufacturing enterprises nationwide.

The company’s proprietary high-speed motion control algorithms achieve microsecond-level instruction cycles, while its full-stack AI vision platform supports both 2D and 3D vision, enabling dynamic picking, defect inspection, and path planning.

Today, ATOMROBOT offers:

• Five series of 41 Delta robot models
• Two series of 28 high-speed SCARA robot models
• Four series of 10 heavy-duty collaborative robot models
• Five embodied intelligent robot models

Bringing Flexible Seven-Axis Robotics Within Reach

At ATOMROBOT, we believe that what most industrial applications truly need is a robotic arm that is flexible, powerful, perceptive, and precise.

With 0.5 N force-control accuracy, the SkyArms AR-A7 performs delicate assembly with exceptional sensitivity.

Its 10 kg payload enables demanding industrial tasks while exceeding the payload capacity of most humanoid robotic arms currently available.

Its seven-axis biomimetic architecture allows agile operation in confined spaces while delivering motion patterns closer to those of the human arm.

Its ±0.05 mm repeatability combines heavy-duty handling with precision positioning.

Its 1.5 m/s high-speed response strikes the ideal balance between productivity and accuracy.

SkyArms AR-A7—engineered for practical applications and built for diverse industries.

Now available for pre-order. Contact ATOMROBOT for more information.

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