BLOGS

High-precision, force-controlled robot arms are on track to be the fastest-growing segment of the industrial robot market in 2026 — and at WAIC 2026, Ti5 Robot put its own entry on the floor for the first time: the TiJi A6, a force-controlled collaborative arm built on Ti5's self-developed lightweight joint modules.

The gap: arms that move vs. arms that feel

Most industrial arms are position-controlled. They are excellent at repeating a path, but blind to what happens when the tool actually touches the workpiece. For polishing a curved surface or seating a connector, that blindness is the problem: the part tolerances vary, the fixture shifts, and a position-only controller either presses too hard or not enough.

A force-controlled arm closes that loop. By measuring the contact torque at the joint in real time, it can feel resistance the way an operator's wrist does — and adjust on the fly. In flexible, multi-SKU production, where batch sizes keep shrinking, this is increasingly the difference between a cell that needs constant re-teaching and one that just works.

What the TiJi A6 brings

The TiJi A6 pairs Ti5's lightweight joint modules with a newly upgraded torque sensing system and Ti5's native control algorithms:

• Fine force feedback — the upgraded sensor chain captures subtle contact forces, enabling precise control for precision assembly, flexible polishing and complex curved-surface machining
• 7-DOF anthropomorphic configuration — the arm follows human-arm biomechanics, so trajectories feel natural near people and in tight workcells
• Hidden internal routing — cables run through the arm body, eliminating snag points on peripheral equipment and simplifying maintenance
• Structural discipline — optimized geometry and material selection balance sensitivity with service life, rather than trading one for the other

Three demos that tell you what the arm can do

At the WAIC booth (H3-C521, Shanghai World Expo Exhibition & Convention Center), visitors could try three interactive stations, each mapping to a real control capability:

• Zero gravity — the arm compensates for its own weight so it floats under your fingertips. This demonstrates low-friction joint design and clean gravity compensation, the foundation for safe hand-guiding.
• Joint impedance — push against the arm and it resists like a tuned spring-damper. This is the control mode behind contact-rich tasks: polishing, deburring, insertion with compliance.
• Null-space admittance — deflect the arm and it gives way while keeping the end-effector pose fixed. That is how a 7-DOF arm avoids obstacles with its elbow, a core requirement for human-robot collaboration.

If you are shortlisting arms for precision assembly or surface finishing, we recommend evaluating torque resolution and control bandwidth first, then payload and reach. Our 10-point buyer checklist for robot joint modules breaks down the questions to ask any supplier — including what is inside the joints themselves.

Why the joint module inside matters

A force-controlled arm is only as good as its joints. Sensing a subtle contact force is pointless if the reducer stiction or backlash drowns the signal. That is why Ti5 builds the TiJi A6 on its own lightweight joint module 30-40 platform — the same module family used across our collaborative and humanoid robots, covered in detail in our 2026 humanoid actuator trends analysis.

For teams building dual-arm workcells, the TiJi A6 also fits alongside our Ti5-A5-1 dual-arm platform, sharing the same control philosophy.

Want the full specifications or a demo unit? Contact Ti5ROBOT and our engineers will help you match the arm to your process.