SIASUN Industrial Robot Arm (SR50A-50/2.15)

In common industry usage, model names that include a payload and reach (for example, “50/2.15”) typically indicate the robot’s approximate maximum payload class and working reach class. For the SR50A-50/2.15, publicly listed commercial information describes it as a 50 kg payload industrial robot with an arm reach on the order of ~2.15 m (listed at 2158 mm in at least one product listing).

As with many 6-axis articulated robot arms in this category, the SR50A-50/2.15 is positioned for applications that benefit from (1) a payload capacity suitable for heavier tools or parts, and (2) a reach sufficient for servicing work cells, conveyors, pallets, fixtures, or machine tools without frequent repositioning.

Design and Features

Articulated arm architecture

Industrial robot arms in the “SR” class are generally deployed as articulated manipulators, meaning they use a multi-jointed structure that resembles a human arm (base, shoulder, elbow, wrist). This architecture is widely used in factories because it supports flexible end-effector orientation and can execute complex toolpaths.

While detailed mechanical drawings and joint-limit tables vary by configuration and controller generation, robots in the SR50A class are commonly integrated into:

• fixed-base work cells (bolted to floor or pedestal),

• safety-fenced cells or collaborative-style zones (depending on risk assessment),

• end-effector toolchains (grippers, vacuum tooling, welding torches, sanding spindles, dispensing heads, etc.).

Payload class suited for tooling and heavier parts

A 50 kg payload class is typically used for:

• multi-part picks (bundled items),

• heavier fixtures,

• robust grippers and sensor stacks,

• process tools (e.g., certain finishing spindles or application heads).

For SR50A-50/2.15, the 50 kg payload is explicitly referenced in at least one commercial listing.

Long reach for larger work envelopes

Robots around the 2.15 m reach class are often selected when the task requires:

• palletizing or depalletizing across a wider footprint,

• servicing multiple stations from a single mounting point,

• reaching deep into machines or across conveyors.

A listing describing SR50A-50/2.15 specifies an arm reach of 2158 mm, which is consistent with the “2.15” reach class embedded in the model name.

Technology and Specifications

Note on specifications: Precise figures (repeatability, joint speeds, allowable moments/inertia, mass, protection rating, controller model, I/O, and safety functions) depend on the exact variant and documentation set. The items below summarize what is publicly and consistently indicated for the SR50A-50/2.15, and what is typical for industrial robot arms in this class.

Key published parameters

• Model: SR50A-50/2.15

• Payload (max): 50 kg

• Reach: ~2.15 m (listed as 2158 mm)

Common integration characteristics for this class

Industrial robot arms in this payload/reach segment are usually paired with:

• a dedicated robot controller cabinet (motion control + safety + I/O),

• a teach pendant for jogging, calibration, and program management,

• support for standard automation interfaces (digital I/O, fieldbus options, and safety I/O depending on configuration),

• compatibility with typical robot programming workflows (point-to-point motion, path motion, tool and work-object frames, and job scheduling).

Because SIASUN Robot & Automation Co., Ltd. is an automation supplier with offerings spanning industrial robots and automation systems, the SR50A series is generally positioned for integration into broader factory solutions (welding automation, assembly automation, and logistics automation are named application directions in company materials).

Applications and Use Cases

The SR50A-50/2.15’s payload and reach profile aligns with several mainstream industrial automation use cases:

Material handling and machine tending

• Loading/unloading CNC machines

• Transferring parts between conveyors and fixtures

• Handling castings, metal blanks, or boxed goods

Why it fits: The reach allows the robot to serve multiple machines or stations, and the payload supports robust grippers and heavier workpieces.

Palletizing and depalletizing

• End-of-line pallet building

• Layer picking and placement

• Warehouse or staging tasks inside structured industrial environments

Why it fits: A 2.15 m class reach is frequently used to cover pallet footprints and surrounding conveyor geometry without a track.

Packaging and kitting

• Case packing (placing items into cartons)

• Kitting multiple SKUs into trays or bins

• Handling totes and intermediate containers

Light-to-medium process tasks (tool-dependent)

Depending on end-effector and compliance requirements, robots in this segment can support:

• dispensing (adhesives/sealants),

• basic finishing (sanding/polishing),

• screwdriving or pressing (if cell design supports required forces).

Advantages / Benefits

Broad work envelope with fewer mechanical add-ons

A ~2.15 m reach can reduce the need for:

• additional robot bases,

• linear tracks,

• frequent repositioning of fixtures.

Payload capacity that supports tooling stacks

A 50 kg payload class helps when end-effectors are heavy or complex—e.g., grippers with multiple fingers, sensors, cameras, lighting, force/torque devices, and protective housings.

Suitable for scalable automation projects

Industrial robots of this type are often selected for projects where:

• the task may evolve (new product sizes, new packaging formats),

• the cell must accommodate multiple SKUs,

• uptime and repeatability are priorities in production operations.

FAQ Section

What is the SIASUN SR50A-50/2.15?

The SIASUN SR50A-50/2.15 is an industrial robot arm in the 50 kg payload class with an arm reach around 2.15 meters, designed for factory automation tasks such as handling, palletizing, and machine tending.

How does the SR50A-50/2.15 work?

It operates as a programmable articulated robot arm controlled by a dedicated controller cabinet. The robot moves through defined points and paths to manipulate an end-effector (such as a gripper or process tool), executing repeated cycles with consistent motion control.

Why is the SR50A-50/2.15 important in industrial automation?

Robots in this payload and reach segment help factories automate labor-intensive or repetitive handling tasks, improve consistency, and expand throughput. A 50 kg payload and ~2.15 m reach can cover larger cells and heavier tools than smaller robot classes.

What are the benefits of a 50 kg, 2.15 m reach industrial robot arm?

Key benefits include the ability to carry heavier parts or tooling, service larger work envelopes from one mounting point, and support common automation workflows like palletizing, machine tending, and packaging.

Summary

The SIASUN SR50A-50/2.15 is a medium-payload industrial robot arm positioned for demanding automation tasks that require both 50 kg-class handling and a ~2.15 m reach. Its class profile makes it a practical choice for material handling, palletizing, and multi-station work cells where reach and tooling capacity materially impact productivity.