SIASUN Industrial Robot Arm (SR25-20/1.76)

A long arm and a steady hand rarely come together. The further a manipulator stretches, the more give every bearing, gearbox and link adds, and a heavier tool at the wrist only increases it. The SIASUN Industrial Robot Arm (SR25-20/1.76) is built around that tension. It is a six-axis arm with a maximum working radius of 1,760 mm, a payload of 20 KG and a repeatability of ±0.05 mm. It is intended for welding, handling, assembly and palletising, where a cell is judged by how reliably it repeats the same motion, shift after shift.

Robots Europa, based in Dublin, supplies the SR25-20/1.76 to manufacturers and system integrators throughout the European Union and the DACH region. Robots Europa prepares the quotation, coordinates delivery to your site and remains your point of contact for technical questions and after-sales support. You therefore deal with a single European partner from first enquiry to commissioning.

Background

Siasun Robot & Automation Co., Ltd.

The arm is manufactured by Siasun Robot & Automation Co., Ltd., a Chinese robotics and automation company whose portfolio extends well beyond articulated arms. Alongside industrial robots, the SIASUN range includes heavy-duty mobile robots, assisted assembly platforms, horizontal multi-jointed robots and atmospheric manipulators for clean handling. That breadth matters to buyers. An arm such as the SR25-20/1.76 sits within a family of automation products from one manufacturer, which can simplify supplier management when a plant automates several processes at once.

Six axes and the SRC M5 controller

The SR25-20/1.76 is a six-axis articulated arm. This is the architecture most widely used in general-purpose manufacturing, because it can bring a tool to a point in space from many different orientations. That freedom is essential when following a curved weld seam or placing a part at an angle. Motion is governed by SIASUN's SRC M5 controller, designed to provide reliable, accurate and easy-to-use control.

The power capacity is 3 KVA, a figure electrical planners need when sizing the supply to a cell. The arm can be installed upright or inverted, so layout engineers can stand it on the floor or hang it from a gantry or overhead structure.

Technical Specifications

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

The manufacturer has not published the arm's weight, IP rating, axis speeds, axis motion ranges, wrist load capacity, operating temperature, communication interfaces, controller dimensions, mounting footprint or what is supplied in the box; each of these is confirmed at quotation.

What does ±0.05 mm repeatability mean on a 1,760 mm arm?

Repeatability describes how closely a robot returns to the same taught position, cycle after cycle. In most production cells it matters more than absolute accuracy, because robots are usually taught or calibrated against real fixtures. A weld torch must arrive at the same seam start, a gripper must meet the same locating pin, and a pallet layer must sit square on the one below. A repeatability of ±0.05 mm suits the SR25-20/1.76 to tasks where small deviations would show up as rework.

The working radius sets the other half of the equation. With 1,760 mm of reach, one arm can serve a broad envelope around its base. That might be two welding fixtures, an infeed conveyor and a pallet station, or a series of assembly positions on a bench. Covering more stations from a single robot can reduce the number of arms a line needs, which simplifies guarding, programming and maintenance planning.

Payload completes the picture. The 20 KG figure is the load the arm carries at the wrist. In practice, that budget has to cover the end effector as well as the workpiece: a welding torch with cable package, a vacuum gripper or a mechanical clamp. Engineers should therefore weigh the tooling first and plan the part weights around what remains. Robots Europa can review that calculation with you during quotation.

Upright or inverted: how should the SR25-20/1.76 be installed?

The arm can be installed either upright or inverted, and the choice shapes the whole cell. Floor mounting is the conventional option. It keeps the robot accessible for maintenance and suits palletising and handling, where the arm works down onto conveyors and pallets.

Inverted mounting hangs the arm from a gantry, frame or ceiling structure. This frees floor space beneath it and often gives a more direct approach to parts lying on a table or moving along a line. In welding, an overhead arm can reach into fixtures from above without the base obstructing operators or material flow.

Robots Europa can discuss the supporting structure for either option with you as part of the project review.

Who is the SIASUN Industrial Robot Arm (SR25-20/1.76) for?

The first group is metal fabricators and contract welders automating repetitive seam work. Here the combination of six axes, generous reach and tight repeatability matches the demands of consistent bead placement.

A second group is manufacturers looking at end-of-line automation. Palletising and case handling are named applications, and the reach allows one arm to serve several pick and place positions.

Assembly plants form a third group, particularly suppliers in the automotive and industrial sectors across Germany, Austria and Switzerland. They will value the precision for joining and insertion tasks. System integrators building turnkey cells for EU customers will also find the upright-or-inverted flexibility useful when adapting one robot model to many layouts.

Buyers still deciding which robot architecture suits their process may wish to compare the arm with the wider SIASUN range, which includes mobile, horizontal multi-jointed and handling robots.

What is the SIASUN Industrial Robot Arm (SR25-20/1.76) used for?

1. Arc and spot welding: six axes let the torch follow seams at the correct angle on repeat batches.
2. Material handling: moving parts between conveyors, fixtures and storage within the arm's working radius.
3. Palletising: building and breaking down pallet layers at the end of a production or packing line.
4. Assembly: placing, inserting and joining components where repeatable positioning prevents rework.
5. Overhead cells: inverted installation that keeps floor space clear for operators and material flow.
6. Multi-station cells: one robot serving several fixtures or workstations to reduce the number of arms on a line.

Pricing and Availability

The SR25-20/1.76 is supplied on quotation, so the offer can reflect your configuration, tooling and site requirements. Robots Europa reviews your application, checks the configuration and sets out the scope of supply in writing. Delivery, customs and support are arranged with the quotation. To begin, send us a short description of your process and intended layout; the request form for the SIASUN Industrial Robot Arm (SR25-20/1.76) is available on this page.

Frequently Asked Questions

What payload does the SR25-20/1.76 carry?

The arm has a payload of 20 KG. That figure has to include the end effector, so the weight of the torch or gripper should be deducted before planning part weights.

How far can the SR25-20/1.76 reach?

The maximum working radius is 1,760 mm. This lets one arm cover several fixtures, conveyors or pallet positions around its base.

Which controller does the arm use?

The SR25-20/1.76 is equipped with SIASUN's SRC M5 controller. The power capacity is 3 KVA.

Can the robot be mounted upside down?

Yes. The arm can be installed upright or inverted, so it can stand on the floor or hang from an overhead structure.

Which applications is the arm designed for?

The SR25-20/1.76 is designed for welding, material handling, assembly and palletising. Its six axes and reach make it suitable for cells that combine several of these tasks.

Does Robots Europa deliver within the EU?

Yes. Robots Europa supplies customers throughout the European Union and the DACH region from Dublin. Please mention your country of installation when you enquire.

Where can I buy the SIASUN Industrial Robot Arm (SR25-20/1.76) and what does it cost?

You can buy the arm from Robots Europa, which supplies customers across the EU and the DACH region from Dublin. The cost depends on configuration and scope of supply, so it is provided in a written quotation on request.

Summary

Reach and precision usually pull against each other. The SR25-20/1.76 brings both together: 1,760 mm of working radius and ±0.05 mm of repeatability on a six-axis arm carrying 20 KG. Add the SRC M5 controller and the freedom to mount the arm upright or inverted, and it becomes a practical candidate for welding, handling, assembly and palletising cells across Europe.

Robots Europa accompanies you from the first enquiry through to delivery and support. If your next cell needs a long arm with a steady hand, this page is the starting point.