SIASUN GCR3-618 (GCR3-618)

Within the lineup, the GCR3-618 is the compact, light-payload model, specified at 3 kg maximum payload and 618 mm reach. SIASUN also lists application categories for the model—assembly, quality inspection, painting, and polishing—reflecting the typical cobot niche of repetitive, precise tasks that benefit from quick deployment and straightforward redeployment across stations.

Design and Features

Collaborative safety and functional safety framing

SIASUN describes the GCR series as incorporating collision detection and force/power detection, and states that it has functional safety by TÜV SÜD certification, noting IEC 61508 in the same safety description. In practice, these categories align with common collaborative-robot safety concepts (speed/force limiting, collision monitoring, and safety-rated control functions), though the exact safety configuration is typically defined by the robot’s controller, firmware, and the overall risk assessment of the integrated cell.

“Traction teach” / hand-guided programming concept

SIASUN highlights Traction Teach Programming as an “easy maintenance” and usability advantage, describing reduced limitations for robot users and rapid onboarding for basic programming. The user manual for the GCR series also references “traction teach,” indicating that manual guidance is part of the operating concept for teaching and setup workflows.

Compact footprint and lightweight cobot class

The GCR3-618 is described in the user manual as weighing 13 kg, supporting use cases where a cobot must be mounted on benches, mobile carts, or compact stands and then relocated between workstations. SIASUN’s GCR marketing also emphasizes “light and handy,” tying portability to reductions in cabinet size and weight at the system level.

External interfaces and application “packages”

SIASUN states that multiple scenario software packages (for example, welding and palletising) are available for the broader GCR cobot platform and that it supports external interfaces including DI/DO and AI/O. For many cobot deployments, standardized I/O and packaged application templates reduce engineering time for common tasks such as simple pick-and-place, inspection triggering, or end-effector control.

Technology and Specifications

SIASUN publishes key “Parameter” values for the GCR3-618 on its product page, and the GCR user manual provides a more detailed technical data table. Together, they describe the cobot’s core performance envelope:

Core performance (manufacturer-listed)

• Max payload: 3 kg

• Reach (workspace radius): 618 mm

• Degrees of freedom: 6

• Repeatability: ±0.02 mm

• Max TCP speed: 1.0 m/s

• Max straight-line speed: 0.8 m/s

• IP class: IP54 / IP65 (configuration-dependent, as presented on SIASUN’s page)

Additional technical data (from the user manual)

• Robot weight: 13 kg

• Joint ranges and max joint velocity: The manual lists wide joint ranges (including ±360° on multiple axes) and max velocity up to 225°/s for several joints.

• Installation orientations: Vertical, horizontal, upside down (manual-listed mounting flexibility)

• Operating temperature: −10°C to 45°C (manual)

• IP code (manual table): IP54

Note on protection ratings: SIASUN’s product page presents IP54/IP65 as an IP class range, while the user manual’s basic data table lists IP54 for the GCR3-618. In procurement or integration work, the practical approach is to confirm which configuration (and which parts of the robot, such as arm vs. wrist) carry the higher IP rating for the specific order.

Applications and Use Cases

SIASUN lists the GCR3-618’s application areas as assembly, quality inspection, painting, and polishing. These categories map to typical collaborative-robot deployments in electronics, light industrial production, labs, and mixed human/robot workstations:

Assembly and small-part handling

With a 3 kg payload and compact reach, the GCR3-618 is suited to small-part assembly, kitting, fixture loading, and repetitive placement tasks—especially where operators may want the robot to “assist” rather than fully replace manual work. The combination of high repeatability (±0.02 mm) and a modest workspace is commonly used for precise insertion or alignment operations when paired with appropriate end-effectors and fixturing.

Quality inspection and measurement assistance

For quality inspection, cobots are often used to position a camera, sensor, or gauge to consistent viewpoints and distances, improving repeatability in measurement workflows. SIASUN explicitly includes quality inspection in the product’s application area list, and also highlights compatibility with 2D/3D vision depth in its “wide application” positioning for the platform.

Painting, coating, and dispensing-adjacent tasks

SIASUN includes painting among the application areas. In practice, compact cobots are often used for light spray/coating, adhesive application, or controlled motion along surfaces (with appropriate safety measures, ventilation, and process controls), where consistent path following can improve finish uniformity.

Polishing and surface finishing

For polishing, the repeatability and controllable tool motion can support consistent finish quality, particularly on small parts. SIASUN lists polishing as a target area for the GCR3-618. In many polishing deployments, achieving stable results depends heavily on the end-effector design and the chosen force/compliance strategy, which is typically engineered at the cell level.

Advantages / Benefits

High precision for a compact cobot

The GCR3-618 is listed with ±0.02 mm repeatability, supporting precision tasks such as small-part placement, inspection positioning, and repeatable tool paths.

Quick deployment and approachable programming model

SIASUN promotes traction-teach programming and quick training for basic operation, which can reduce commissioning time for teams without deep robotics backgrounds.

Energy-efficiency positioning

SIASUN states that the GCR series can have power consumption “as low as 200 W” and highlights reduced lubrication requirements as part of the ECO messaging. (Actual consumption depends on workload, speed profiles, and end-effector power draw.)

Flexibility for multi-application development

SIASUN notes external interface support (including DI/DO and AI/O) and mentions multi-scenario software packages, suggesting an ecosystem approach aimed at reusing the platform across different tasks.

FAQ Section 

What is the SIASUN GCR3-618?

The SIASUN GCR3-618 is a 6-axis collaborative robot (cobot) with 3 kg payload, 618 mm reach, and ±0.02 mm repeatability, intended for tasks like assembly, inspection, painting, and polishing.

How does the GCR3-618 work?

The GCR3-618 moves through programmed paths using six motorized joints. SIASUN describes collaborative safety features such as collision detection and force/power detection, and supports “traction teach” programming for hands-on teaching workflows.

Why is the GCR3-618 important?

It enables compact, precise automation in environments where flexible deployment and human-robot collaboration are valuable—especially for light assembly and inspection tasks that benefit from repeatable motion and quick redeployment.

What are the benefits of the GCR3-618?

Key benefits include 3 kg payload, 618 mm reach, ±0.02 mm repeatability, traction-teach programming, and an application focus on assembly, inspection, painting, and polishing, with manufacturer-stated IP class options shown as IP54/IP65.

Summary

The SIASUN GCR3-618 is a compact 6-axis collaborative robot positioned for light automation in shared workspaces, with manufacturer-listed specifications of 3 kg payload, 618 mm reach, and ±0.02 mm repeatability. SIASUN emphasizes collaborative safety concepts, approachable “traction teach” programming, and a practical application scope spanning assembly, quality inspection, painting, and polishing, making the GCR3-618 a representative entry model for organizations adopting cobots for flexible, redeployable production assistance.