SIASUN SR50A-50/2.15 (SR50A-50/2.15)

In a machine-tending cell the weak point is seldom the arm itself. It is the bundle of cables at the wrist, rubbing against grippers, fixtures and the operator's own air and signal lines on every cycle until something chafes through. The SIASUN SR50A-50/2.15 (SR50A-50/2.15) is built around an answer to that problem: its J6 motor is fully enclosed and its spiral cabling is integrated into the robot, so the lines you add for your tooling do not fight with the ones fitted at the factory. Around that wrist sits a medium-load, six-axis arm with a 50 kg payload, a reach of 2158mm and a repeatability of ±0.05mm. These are the proportions of a robot meant to move substantial parts between machines, hour after hour.

Robots Europa, based in Dublin, supplies the SIASUN SR50A-50/2.15 to manufacturers, system integrators and engineering teams across the European Union and the DACH region. Each quotation is prepared for the cell the robot will work in, and Robots Europa arranges delivery and after-sales support from the same desk, so that one point of contact follows the robot from the first enquiry to the day it starts production.

Background

SIASUN and its industrial robot line

SIASUN is a Chinese robotics and automation manufacturer with its roots in the country's automation research community. Over the years it has built a broad portfolio of industrial arms, mobile robots and factory automation systems, and its articulated robots now span light assembly arms through to heavy-handling machines. The SR50A-50/2.15 belongs to the middle of that range: a general-purpose articulated arm that SIASUN positions specifically for medium-load work, where a light assembly robot would run out of capacity and a heavy palletising machine would be oversized for the cell.

A revised drive train and a cleaner wrist

Two design decisions define this generation. The first concerns motion: a high-rigidity transmission and a variable acceleration algorithm allow faster overall cycle times, with significantly increased axis speeds compared with the previous generation and a 20% improvement in efficiency. At the same time, the robot body is 10% lighter than its predecessor. Advanced servo drive technology and a high-precision control system keep the arm stable and accurate at speed. The second decision concerns the wrist: Axis 6 has integrated protection and a built-in spiral cable management design, which prevents interference between the robot's internal cables and user cables. For cells that change tooling or run long unattended shifts, that is the detail that keeps maintenance intervals predictable.

Technical Specifications

Specifications are as published by the manufacturer and are confirmed against the datasheet at quotation.

SIASUN has not published the robot's weight, axis speeds, axis motion ranges, controller model, power supply requirements, mounting options, operating temperature, wrist moment and inertia ratings, cabling and cable length, or the contents of the box; Robots Europa confirms these details with the quotation.

What makes the SR50A-50/2.15 different from the previous generation?

The change is less about headline capacity than about how the arm spends its time. A robot in a tending cell earns its keep in seconds saved per cycle, and the SR50A-50/2.15 addresses that directly: the high-rigidity transmission lets the arm accelerate harder without losing its path, while the variable acceleration algorithm shapes each move so that the faster axis speeds translate into shorter cycles rather than vibration at the end of travel. The result is a 20% improvement in efficiency over its predecessor.

The lighter structure supports the same aim. With the body 10% lighter than before, there is less mass for the drives to move on every stroke, which matters most in repetitive pick-and-place work. Pairing these changes with the servo drive technology and high-precision control system means the gain in speed does not come at the expense of the ±0.05mm repeatability that precision tasks depend on.

How does the enclosed sixth axis help in machine tending?

Anyone who has integrated a gripper with vacuum, pneumatic and sensor lines knows how quickly a wrist becomes crowded. When the robot's own cables and the user's cables share the same space, they twist against each other as the wrist rotates, and the result is wear, intermittent signals and unplanned stops. On the SR50A-50/2.15 the J6 motor is fully enclosed and the spiral cables are integrated, keeping the factory wiring out of the way of the lines the integrator adds. The IP65 rating at the wrist adds protection where coolant mist and swarf are part of everyday life beside a machine tool. This is why the robot is particularly suited to machine tool loading and unloading and to multi-station material handling, where the wrist works through many orientations in a single cycle.

Who is the SIASUN SR50A-50/2.15 for?

The first group is machining businesses that want to automate the loading and unloading of CNC machines. A 2.15-metre working radius allows one arm to serve more than a single station in a well-planned layout, and the protected wrist suits the environment around machine tools. The second group is manufacturers in the automotive, electronics and precision engineering sectors, where the SR50A-50/2.15 handles intricate, precise tasks and where repeatability is a quality requirement rather than a preference.

System integrators form the third group. The flexible joint structure and intelligent software support make programming straightforward and deployment swift, which shortens commissioning time on customer sites. Integrators building multi-station handling cells will also value the internal cable routing, which simplifies dressing the robot for each new end effector.

The sources also name a related version, the SR50A-70/2.15. Its figures are not part of the information available for this page, so buyers weighing the two should ask Robots Europa to compare them in the quotation rather than assume any difference. For other SIASUN arms, the full range is collected under Industrial Robots, including models such as the SIASUN SR25A-35/1.80 (SR25A-35/1.80) and the SIASUN SR500A-500/2.52 (SR500A-500/2.52).

What is the SIASUN SR50A-50/2.15 used for?

1. Machine tool loading and unloading – feeding blanks into CNC machines and removing finished parts, with the wrist cabling kept clear of the gripper lines.
2. Multi-station material handling – moving workpieces between several stations within the robot's working radius.
3. Assembly – positioning and joining components where repeatable placement is essential.
4. Precision machining tasks – guiding tools or parts in processes that rely on stable, accurate motion at speed.
5. Automotive component production – handling medium-weight parts in supplier and assembly plants.
6. Electronics and precision manufacturing – carrying out intricate handling and processing steps in demanding production lines.

Pricing and Availability

Robots Europa prices the SIASUN SR50A-50/2.15 by quotation, because the right configuration depends on your cell, your tooling and your production targets. Tell us what the robot will handle, how the stations are arranged and where the system will be installed, and we will prepare an offer that reflects your application. Delivery, customs and support are arranged with the quotation, so that the terms for the whole supply are clear from the outset. The form to request your quotation for the SIASUN SR50A-50/2.15 is available on this page.

Frequently Asked Questions

What payload does the SIASUN SR50A-50/2.15 handle?

The SR50A-50/2.15 has a payload of 50 kg (110.2 lbs). It is designed for medium-load applications.

How far can the SR50A-50/2.15 reach?

Its reach is 2158mm, giving a working radius of 2.15 metres. This allows the arm to serve several stations from a single position in a suitable layout.

How accurate is the robot?

The SR50A-50/2.15 has a repeatability of ±0.05mm. Its servo drive technology and high-precision control system keep it stable and accurate at high speeds.

Is the wrist protected against dust and liquids?

The wrist is rated IP65. Axis 6 also has integrated protection, a fully enclosed J6 motor and built-in spiral cable management.

Is the SR50A-50/2.15 difficult to program?

Its flexible joint structure, combined with intelligent software support, makes programming straightforward and deployment swift. The controller model has not been published, and Robots Europa confirms it with the quotation.

What is the difference between the SR50A-50/2.15 and the SR50A-70/2.15?

Both versions are named by the sources, but the figures available for this page cover only the SR50A-50/2.15. Robots Europa can compare the two versions for your application in the quotation.

Where can I buy the SIASUN SR50A-50/2.15 and what does it cost?

You can buy the SIASUN SR50A-50/2.15 from Robots Europa, which supplies customers across the EU and the DACH region. The price is set in an individual quotation based on your configuration; simply request one on this page.

Summary

The SIASUN SR50A-50/2.15 starts from a practical observation: in machine tending and multi-station handling, downtime often begins at the wrist. By enclosing the J6 motor and integrating the spiral cabling, SIASUN keeps the robot's wiring apart from the integrator's, and the IP65 wrist protects it in the environment beside a machine tool. Around that wrist, the arm offers a 50 kg payload, 2158mm reach and ±0.05mm repeatability, while the revised drive train delivers a 20% improvement in efficiency on a body 10% lighter than its predecessor. For automotive, electronics and precision manufacturing operations across Europe, Robots Europa provides the quotation, delivery and support in one place, and for anyone planning a cell around this robot, this page is the starting point.