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AUBO-i3 vs ROKAE xMate SR5-C: Robot Comparison

3 hours ago
8 min read
AUBO-i series family illustration from the ATC review; individual models have different payloads and arm lengths

AUBO-i3 vs ROKAE xMate SR5-C: compare payload, loaded reach, tooling, controls and collaborative integration.

AUBO-i3 vs ROKAE xMate SR5-C: quick verdict

Shortlist AUBO-i3 for 3 kg six-axis handling on the AUBO platform. Shortlist ROKAE xMate SR5-C for 5 kg collaborative handling within the documented 919 mm reach. Neither is a universal winner: a robot that can carry the load may still fail the fixture-access, controller or maintenance requirements.

AUBO-i3 vs ROKAE xMate SR5-C is a choice about collaborative handling and cell integration. AUBO-i3 and ROKAE xMate SR5-C differ in their working envelope, loading assumptions and engineering ecosystem. A useful decision starts with the exact mechanism and process, then checks whether either robot can execute the required path with the real tool attached. This comparison separates documented specifications from application-level engineering judgments.

The numerical comparison below uses AUBO-i3 against ROKAE xMate SR5-C. The stated model scope matters when comparing later revisions or differently equipped installations. Published repeatability describes return to a taught position under specified conditions; it does not establish complete-cell accuracy or prove a faster production cycle.

Specifications and exact configuration scope

Criterion

AUBO-i3

ROKAE xMate SR5-C

Comparison configuration

AUBO-i3

ROKAE xMate SR5-C

Payload used for comparison

3 kg

5 kg

Reach / motion-area reference

625 mm

919 mm

Axes

6

6

Repeatability for this scope

±0.02 mm

±0.03 mm

Controller reference

AUBO CB-M control box

xMate SR Cab (MSC)

Historical ATC review starting reference

From USD 21,200

From USD 17,500

Purchase pricing

Request a configuration-specific quote

Request a configuration-specific quote

Read the reach row together with the geometric notes below. Manufacturers may specify an arm-link sum, a wrist-centre motion area or reach to the flange; those dimensions are not interchangeable. The table does not establish access to every point at every tool angle. Controller references identify reviewed packages, and actual compatibility must be confirmed by model, software version and region.

AUBO-i3: design and configuration

The AUBO Robotics AUBO-i3 is a six-axis collaborative robot arm with a payload of 3 kg, a reach of 625 mm and repeatability of ±0.02 mm. It is designed for compact benchtop cells and handles small-part assembly, pick and place, screwdriving, inspection and dispensing. The arm weighs 16 kg. It runs on the AUBO CB-M control box and communicates over TCP/IP, Modbus RTU/TCP and PROFINET, with SDK and ROS support for integration. The AUBO-i hardware has six rotating joints and a model-specific load-deflection limit. The source review describes a CB-M control box; the current AUBO-i manual identifies CB-iS controllers, so match the arm and control generation explicitly. Power-and-force limits depend on the full application, tool contact geometry and safety settings, and do not prove unrestricted operation next to people.

ROKAE xMate SR5-C robot illustration from the ATC source review; confirm the ordered configuration

ROKAE xMate SR5-C: design and configuration

The ROKAE xMate SR5 (SR5-5/0.9C) is a 6-axis collaborative robot with a payload of 5 kg and a reach of 919 mm, repeatable to ±0.03 mm. The arm weighs about 16.5 kg, is rated IP54 and reaches a tool-end speed of up to 2.0 m/s. Six-axis force sensing at the tool flange supports force-controlled tasks, and the arm can be mounted at any angle. It is suited to light assembly, inspection, machine tending and commercial service tasks. Keep this reviewed xMate generation separate from newer CR variants with different payloads or reach. The robot, cabinet and software revision must be named together. Collaborative use requires validation of the actual tool and process, and optional force control or external software interfaces must be confirmed in the supplied package.

For this pair, ROKAE xMate SR5-C offers 5 kg over the stated 919 mm reference, compared with 3 kg and 625 mm for the AUBO example. ROKAE xMate SR5-C has the larger stated distance by 294 mm, but this difference is only a preliminary layout indicator because reference points and joint envelopes can differ. Locate the actual fixture in each manufacturer model before treating this as usable extra working space.

Payload, tooling and a worked load example

Consider an illustrative total wrist load of 2.4 kg: a 0.6 kg tool and adapter package carrying a 1.8 kg part or product group. This arithmetic leaves 0.6 kg below the AUBO-i3 example’s nominal limit and 2.6 kg below ROKAE xMate SR5-C’s nominal limit. These are mass differences, not safety factors or a validated load approval. A heavy camera, valve block or retained material must be included before recalculating the total.

The example exposes the practical question: is the application limited by mass, by tool offset or by wrist rotation? AUBO-i3 is the lower-or-equal nominal payload choice in this pair. ROKAE xMate SR5-C offers more or equal headline mass capacity, but that alone cannot approve an eccentric fixture. Moving the same mass farther from the flange increases the moment, and spreading it increases rotational inertia. Manufacturer load diagrams and the actual centre of gravity govern the final allowable motion.

Model the empty, partly loaded and fully loaded tool states separately. A vacuum layer gripper, a weld torch with hoses or an inspection head may change its effective loading during the cycle. Set the controller’s load data for each supported state and validate the transition logic. A payload table cannot predict acceleration derating, cable pull or transient reactions at a machine interface.

Reach, orientation and fixture access

Build the same cell model for both candidates: base height, machine opening, fixture datum, maximum part size, tool extension and access for maintenance. AUBO-i3 provides a stated 625 mm reference, while ROKAE xMate SR5-C provides 919 mm. Check the deepest production pose and the return path with the loaded tool. An arm that just touches the target at full extension may have little freedom left to turn, retract or avoid a door.

For assembly and machine tending, test the gripper jaws in their open and closed positions. Include feeder replenishment, rejected-part disposal and tool changes. Check wrist flips and singularity avoidance along the whole path. A compact robot can fit a small fixture well, while a longer arm can simplify station placement; neither geometric benefit can be assumed without the actual model.

Precision and throughput: compare the same task

The comparison uses ±0.02 mm for AUBO-i3 and ±0.03 mm for ROKAE xMate SR5-C. These figures should be read in their documented configuration scope. Repeatability is not absolute accuracy, camera calibration accuracy or finished-part capability. Fixture variation, TCP calibration, thermal conditions and tool compliance can dominate the error at the process point, especially when the tool extends far from the flange.

Ask each integrator to execute the same representative path with the same payload model, tool length, process dwell and stop conditions. Report transfer time, settling time, process time and waiting time separately. Published standard cycles often use different loads and distances; dividing one catalogue cycle by another would not establish the production advantage of AUBO-i3 over ROKAE xMate SR5-C. Use a measured or validated application cycle before assigning a throughput benefit.

Programming, controls and production integration

The AUBO-i review baseline uses a CB-M control package, while current manufacturer documentation identifies the CB-iS controller family. Match the actual arm and control generation before choosing software or industrial communication options. ROKAE uses the xMate cabinet and compatible software package. Verify the exact SR or CR generation and interface options.

Specify the PLC handshakes before ordering: cycle request, ready, busy, complete, fault, part present and recovery authorization. Define how an interrupted operation resumes without repeating a dangerous or quality-critical action. Vision, force sensing, fieldbus communication and external-axis coordination must be checked as explicit included or optional functions. An Ethernet connector does not by itself prove that a particular industrial protocol or software interface is licensed and supported.

Protection, installation and maintenance

Match the precise protection package to the process. Standard, protected, cleanroom, foundry and washing configurations can have different seals, services and maintenance requirements. Do not transfer the best optional IP or cleanroom rating to an unprotected base model. Check the controller location, cable bend radius, available lifting access and base reactions with the installer.

For a collaborative application, safe operation is a property of the complete installation and task. Include sharp edges, clamping points, workpiece retention, tool temperature, possible contact and restart behavior. Built-in arm safety functions do not establish that a particular tool can work next to a person at unrestricted speed. Validate application limits and any required safeguarding with the actual parts and process.

Price and lifecycle value

The source reviews list starting references of USD 21,200 for AUBO-i3 and USD 17,500 for ROKAE xMate SR5-C. These are historical editorial starting references, not current sales offers, confirmed stock or matched quotations. Revision, supply condition and included controller can change the relevant price. Request a written quotation naming the arm, controller, pendant, cables, software options, warranty and commissioning scope.

Compare the installed production scope: tool, fixtures, sensing, guarding, machine interface, programming, acceptance and training. For small-parts automation, include feeders, vision calibration, nests and rejected-part handling. Keep purchase cost and recurring support costs separate. No payback figure is defensible until the actual cycle, yield, utilization and installation quotation are known.

Selection and acceptance plan

Decision gate

AUBO-i3

ROKAE xMate SR5-C

Strongest documented fit

3 kg six-axis handling on the AUBO platform

5 kg collaborative handling within the documented 919 mm reach

Main boundary

Tool mass, wrist moments and access constrain the headline specification.

Confirm exact configuration, controller, wrist loading and installation envelope.

Required approval

Exact AUBO model and controller, tool load and validated process path

Exact competitor revision, tool load and validated process path

Acceptance evidence

Agreed parts, path, quality and recovery results

The same agreed parts, path, quality and recovery results

Advance AUBO-i3 when 3 kg six-axis handling on the AUBO platform solves the real constraint and its selected configuration passes the load and access checks. Advance ROKAE xMate SR5-C when 5 kg collaborative handling within the documented 919 mm reach provides the more suitable process arrangement. Reject either candidate if a mandatory pose, protection requirement or controller function cannot be demonstrated. A purchasing shortlist should preserve these conditions instead of converting a single catalogue advantage into a blanket recommendation.

Before acceptance, agree the representative parts, tool states, operating sequence and quality criteria with both suppliers. Demonstrate cold start, normal production, rejected parts, interrupted cycles and controlled recovery. Record the final tool data and software backup. This turns the comparison into a repeatable purchasing decision and helps prevent a later fixture change from invalidating the original robot selection.

Frequently asked questions

Which robot is better for this application?

AUBO-i3 is the stronger starting point for 3 kg six-axis handling on the AUBO platform, while ROKAE xMate SR5-C is worth shortlisting for 5 kg collaborative handling within the documented 919 mm reach. The final choice depends on the real loaded path, required protection, controls and acceptance results. Neither a higher payload nor a longer reach establishes a universal winner.

What payload should I use for the comparison?

Use 3 kg for the specified AUBO-i3 example and 5 kg for ROKAE xMate SR5-C, subject to all documented load and orientation conditions. Include the tool, adapters, sensors and carried part. Confirm exact configuration, controller, wrist loading and installation envelope.

Does the stated reach guarantee access to my fixture?

No. The comparison gives 625 mm for AUBO-i3 and 919 mm for ROKAE xMate SR5-C using the stated model references. Joint limits, reach reference points, wrist orientation, tool length and collisions determine whether the actual fixture is accessible. Simulate the full approach and exit path.

Can I use the best specifications from every family variant?

No. Keep each named model and revision intact. A different arm length, controller generation or protection option can change the relevant specification. Do not combine one version’s maximum payload with another version’s maximum reach.

Is repeatability the same as finished-part accuracy?

No. The stated values are ±0.02 mm for the AUBO scope and ±0.03 mm for the competitor scope. Finished-part results also depend on fixtures, TCP calibration, sensing, thermal conditions and tool compliance. Validate the actual process instead of treating catalogue repeatability as a complete accuracy guarantee.

Are the review starting prices current purchase quotations?

No. From USD 21,200 and USD 17,500 are historical references from the linked ATC reviews. They are not current matched offers and do not establish stock or the installed-cell cost. Obtain configuration-specific quotations with the controller, software, tooling, safety and commissioning scope itemized.

Can these robots operate safely next to people without guarding?

These specifications do not establish a safe unguarded installation. Assess the complete task, tool, load and machine interface, then implement and validate the required safeguarding and operating procedures. Do not infer collaborative operation from a compact arm, limited payload or education setting.

What should an acceptance test compare?

Use the same parts, actual tool load, fixture locations, path and quality criteria for AUBO-i3 and ROKAE xMate SR5-C. Check production timing, settling, interruptions and recovery. Include the most difficult loaded approach and retreat. Approve the exact delivered configuration and preserve its final settings.

Related ATC reviews

Specifications describe the model scope identified above. Prices are indicative historical review references and may change. Confirm current manufacturer documentation, local supply, controller compatibility and the exact configuration before purchase.

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