SIASUN SR50A-70/2.15 (SR50A-70/2.15)

Watch a robot cell through a full shift and the trouble often begins at the wrist: a dress pack rubbing against a tool hose, a cable caught on a fixture, a joint left exposed to the dust that grinding throws into the air. The SIASUN SR50A-70/2.15 (SR50A-70/2.15) gives that end of the arm particular attention. Its J6 motor has full-body protection, an integrated spiral cable keeps the robot's internal wiring clear of the user's external cables, and the wrist is rated IP65. Behind that wrist sits a medium-payload arm that carries 70 kg, reaches 2158mm and repeats its positions to ±0.05mm.

Robots Middle East supplies the SIASUN SR50A-70/2.15 to manufacturers, system integrators and technical institutions across the Middle East. Robots Middle East prepares each quotation around the buyer's application, arranges delivery to site and remains the point of contact for technical support once the robot is in production.

Background

The manufacturer and this generation

SIASUN is a Chinese robotics manufacturer whose Industrial Robots range covers several payload classes, from compact arms to heavy-duty machines. The SR50A-70/2.15 belongs to the medium-payload part of that range and is a newer generation of its design: the robot body is 10% lighter than the previous generation, axis speeds are significantly higher, and overall cycle efficiency has improved by 20%.

The sources name two versions of this arm, the SR50A-70/2.15 described on this page and the SR50A-50/2.15. Every figure in this article belongs to the SR50A-70/2.15 alone. The manufacturer also offers the SR50A-70/2.15 as a kit system for grinding, built around a dual-head force-controlled tool and intended for medium- to heavy-duty grinding work.

Rigidity, transmission and control

Three mechanical qualities define the arm: high rigidity, high inertia and high transmission efficiency. In practical terms, rigidity matters most when a tool is pressed against a workpiece, because any flex in the structure shows up as an uneven finish or a dimension that drifts. Transmission efficiency, for its part, determines how much of the motors' effort reaches the tool rather than being lost in the drive train.

The motion side is handled by a high-rigidity transmission design combined with a variable acceleration algorithm, which together shorten overall cycle times. Advanced servo drive technology and a high-precision control system keep the arm stable and precisely positioned even during high-speed operation, so that faster movement does not come at the expense of accuracy at the point of work.

Technical Specifications

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

The manufacturer has not published the robot's weight, axis speeds, axis motion ranges, power supply, controller model, mounting options, operating temperature, wrist moment and inertia ratings or package contents; Robots Middle East confirms each of these at quotation.

What has changed compared with the previous SIASUN generation?

The improvements fall into two groups. The first concerns speed. The high-rigidity transmission and the variable acceleration algorithm raise axis speeds significantly, and the result is a 20% improvement in cycle efficiency. For a handling cell, that means more parts moved within the same shift; for a grinding cell, it means less time spent travelling between passes and more time spent on the surface itself.

The second group concerns the structure. The robot body is 10% lighter than before. A lighter arm has less mass of its own to accelerate and decelerate, which supports the higher axis speeds, while the rigid transmission keeps the structure firm when the tool meets resistance. The servo drives and high-precision control system tie the two together, holding position and stability when the arm is working quickly.

The wrist completes the picture. Full-body protection on the J6 motor and the integrated spiral cable are practical details rather than headline figures, yet they address two of the most common sources of downtime in a working cell: contamination reaching the final axis, and cables that tangle or wear against one another as the wrist rotates.

How does the SR50A-70/2.15 kit system approach grinding?

Grinding is a demanding task for any robot, because the arm must not only reach a position but also maintain contact with the workpiece while the abrasive pushes back. The SR50A-70/2.15 kit system answers this with a dual-head force-controlled tool. Force control allows the contact pressure to be managed during the process instead of relying solely on a programmed path, which is generally how robotic grinding cells achieve consistent results on parts with natural variation in shape.

The kit system is intended for medium- to heavy-duty grinding scenarios. Here the arm's rigidity, its 70 kg payload and its IP65 wrist work in the same direction: the structure resists deflection, the payload leaves room for the tool and its fittings, and the protected wrist is suited to the dust of an abrasive process.

Who is the SIASUN SR50A-70/2.15 for?

The arm suits manufacturers whose parts are too heavy for a compact robot but who do not need a heavy-duty machine. Metalworking and fabrication plants that finish castings, welded assemblies or machined components can use the grinding kit system to take a dusty, repetitive job away from operators. Production lines that move medium-weight parts between machines, conveyors and fixtures can use the arm's reach and speed for material handling.

System integrators building cells for clients in the region will find a robot that combines handling and grinding capability in a single model, which simplifies spares and training across several projects. Technical colleges and research facilities may also consider it where they wish to study force-controlled processes on an industrial-scale arm.

Buyers whose workpieces call for a different payload class can compare other models in the SIASUN range, such as the SIASUN SR25A-35/1.80 (SR25A-35/1.80) or the SIASUN SR500A-360/2.83 (SR500A-360/2.83). The sources also name the SR50A-50/2.15 version of this arm; Robots Middle East can discuss with you whether that version suits your application.

What is the SIASUN SR50A-70/2.15 used for?

1. Material handling: moving medium-weight parts between stations, conveyors and fixtures within a production line.
2. Machine loading and unloading: feeding blanks into machine tools and removing finished parts across a wide working area.
3. Medium- to heavy-duty grinding: working with the dual-head force-controlled tool of the SR50A-70/2.15 kit system.
4. Surface finishing and deburring: removing edges and blending surfaces where a rigid, repeatable arm gives consistent results.
5. Fabrication cells: handling and finishing welded or cast components in metalworking plants.
6. Training and process development: giving engineers and students hands-on experience with force-controlled robotic processes.

Pricing and Availability

Robots Middle East quotes the SIASUN SR50A-70/2.15 individually, so that the configuration, any grinding kit and the supporting equipment match the application. Delivery, customs clearance and technical support are arranged together with the quotation. To receive an offer for your project, please use the quotation request available on this page.

Frequently Asked Questions

What payload does the SIASUN SR50A-70/2.15 carry?

The SR50A-70/2.15 has a payload of 70 kg (154.3 lbs).

What are its reach and repeatability?

The arm reaches 2158mm and has a repeatability of ±0.05mm.

Is the wrist protected against dust and water?

Yes. The wrist is rated IP65, and the J6 motor has full-body protection.

How is cabling handled at the wrist?

An integrated spiral cable prevents interference between the robot's internal wiring and the user's external cables.

What is the SR50A-70/2.15 kit system?

It is a grinding configuration of the robot with a dual-head force-controlled tool, intended for medium- to heavy-duty grinding applications.

What has improved over the previous generation?

Cycle efficiency has improved by 20% with significantly higher axis speeds, and the robot body is 10% lighter than the previous generation.

Where can I buy the SIASUN SR50A-70/2.15 and what does it cost?

The robot is available from Robots Middle East, which supplies it across the Middle East. The cost depends on the configuration and scope of supply, so please request a quotation through this page.

Summary

A robot is only as dependable as the end of its arm, and the SIASUN SR50A-70/2.15 treats that end with care: a fully protected J6 motor, an integrated spiral cable and an IP65 wrist. Behind it stands a rigid, efficient medium-payload arm with a 70 kg payload, 2158mm of reach and ±0.05mm repeatability, lighter and faster than the generation before it, and available as a force-controlled grinding kit. For handling and grinding cells that need both strength and composure, this page is the starting point.