3kg Payload 0.02mm Repeatability Collaborative Robot Arm for Precision Dispensing

The AUBO iS3 is the precision dispensing configuration of the iS standard series: a 3kg payload 625mm reach collaborative robot arm with 0.02mm repeat positioning accuracy. What separates this build from a general-purpose unit is 0.02mm repeatability that holds a glue bead width steady from the first part to the ten-thousandth. The body is sealed to IP67, runs on the AUBO-CB-iS controller with a 1kg teach pendant, and is assembled from six standardised joint modules, so a 3kg payload collaborative robot arm can be maintained with one spare parts list across every cell on your floor.

Technical Specifications

Why This Build Suits the Job

• 3kg payload at 625mm reach: 0.02mm repeatability that holds a glue bead width steady from the first part to the ten-thousandth, which is the number that decides whether the cell needs a second unit.
• IP67 sealed body: dust, splash and process mist stay outside the joint modules; no upgrade needed for this application.
• Stable under load: the balanced structure and updated control loop limit vibration at 2.5m/s tool speed, so accuracy holds through a full shift rather than the first hour.
• Six standard joint modules: a joint replacement on this collaborative robot arm is one part number and a short stop, not a rebuild of the whole arm.
• Open fieldbus and SDK: Modbus-RTU/TCP, PROFINET, EtherNet/IP plus ROS and ROS2 let your engineers join the 3kg payload collaborative robot arm to an existing PLC, vision system or MES.
• Any-angle mounting: floor, wall or inverted installation with a 140mm base keeps the layout flexible when floor space is already taken.

Typical Application Fields

• Precision adhesive dispensing and sealant paths on small housings
• Micro screw fastening on camera modules and board connectors
• Lens and sensor module assembly at 0.02mm repeat positioning accuracy
• Test fixture loading and unloading in electronics labs
• Laser marking and small part process tending
• Watch, connector and micro-mechanical assembly
• Industries: 3C electronics, home appliances, auto parts, hardware, food and daily chemical, warehousing and logistics

Frequently Asked Questions

Q1: Why this configuration for precision dispensing?

A dispensing cell lives or dies on path repeatability. At 0.02mm repeat positioning accuracy this arm holds a 0.3mm glue bead inside tolerance on every cycle, and the 625mm radius covers a two-station dispensing bench from one base.

Q2: How is accuracy held over a full shift?

Repeat positioning accuracy is 0.02mm at the tool flange under rated payload, and each 3kg payload collaborative robot arm ships with a calibration report from the factory test. Accuracy is only useful if it survives production, so the structure, the control loop and the sealed joints are tuned together to hold that figure at 2.5m/s tool speed rather than on a lab bench, which is the difference between a demo and a production-ready collaborative robot arm.

Q3: What environment can the iS3 work in?

The arm body is rated IP67 (no upgrade needed), the controller IP43 and the pendant IP54. That covers workshop dust, light splash and process mist outside a direct spray zone. The joints are sealed modules with no exposed belts and no grease channel to re-pack, which is what keeps this collaborative robot arm in service on lines where conventional arms need monthly attention, and that record is why buyers shortlist this collaborative robot arm for wet and dusty cells.

Q4: How do we integrate the arm with our line controls?

The controller runs on 115/230VAC, links to the arm over a 5m cable (8m maximum) and speaks Modbus-RTU/TCP, PROFINET and EtherNet/IP. Programming is open, with C, C++, C#, Lua, Python, JavaScript, Java, ROS and ROS2 on Windows and Linux, or point recording on the 1kg pendant. First installation and program validation for one cell typically takes 2-3 days with our support.

Q5: What documentation and programs ship with the unit?

One arm body, one AUBO-CB-iS controller, one AUBO-TP-iS pendant with a 4m cable, the arm cable set, the user manual, interface documentation, a wiring diagram and a calibration report. For this application we also provide dispensing programs, I/O mapping and a bead-width trial report template, so your team can validate the cycle before the 3kg payload collaborative robot arm is installed.

Supply and Support

Arms are assembled at the AUBO manufacturing bases in Changzhou and Zibo and function tested before packing, then shipped in an export plywood case with shock-absorbing foam; arm body, controller, pendant and cables travel in separate compartments. Standard delivery is 15-25 working days after deposit, and because every iS model shares the same controller and joint modules, a second collaborative robot arm cell can be rolled out with the same spare parts list and the same programs, so a second collaborative robot arm cell starts from a known baseline instead of a fresh integration project.