SIASUN SN4A-4/0.58 (SN4A-4/0.58)

Inside the enclosure of a working machine tool, a robot shares its space with coolant mist, fine swarf and the spindle it serves. There is little room for cables that snag, housings that catch or an arm that needs a generous safety envelope. The SIASUN SN4A-4/0.58 (SN4A-4/0.58) is designed for that environment rather than for an open factory floor. It is a compact, lightweight arm with internal wiring, a streamlined exterior and a wrist protected to IP67, and it carries 4kg across a reach of 580mm with a repeatability of ±0.02mm. It suits the places where a larger machine would never fit.

Robots Middle East supplies the SIASUN SN4A-4/0.58 to manufacturers, system integrators and engineering teams across the Middle East. We prepare each quotation around the buyer's application, coordinate delivery to site and remain the point of contact for support once the robot enters service. Your production team therefore deals with a single, accountable partner from the first enquiry to everyday operation.

Background

SIASUN and its engineering lineage

SIASUN is a Chinese robotics and automation manufacturer based in Shenyang. It grew out of the robotics research tradition of the Shenyang Institute of Automation of the Chinese Academy of Sciences. Its portfolio covers industrial robots, collaborative robots, mobile robots and complete automation systems, and it supplies factories that need equipment engineered for continuous production rather than for demonstration. The SN4A-4/0.58 belongs to that industrial line. It is a small arm intended to be built into cells, machines and assembly stations as a dependable production component.

A compact arm for confined automation

Many automation projects stall because the available space is smaller than the task, not because the task is difficult. SIASUN positions the SN4A-4/0.58 for these situations. Its compact and lightweight structure is well suited to scenarios with demanding space requirements, such as 3C factories and the interior of machine tools. Three design decisions support that positioning. Internal wiring keeps cables inside the arm, the streamlined exterior reduces the profile that must be cleared around it, and the modular design allows more compact integration into the surrounding application. Together they give a robot that can work close to fixtures, guarding and machine walls.

Technical Specifications

Specifications are as published by the manufacturer and are confirmed against the datasheet at quotation. The manufacturer has not published the weight, the dimensions, the power supply, the maximum speed, the axis motion ranges, the controller model, the communication interfaces, the operating temperature range or the contents of the package; these are confirmed at quotation.

How does the SN4A-4/0.58 achieve a repeatability of ±0.02mm?

Repeatability measures how closely a robot returns to the same programmed point, cycle after cycle. In small-part assembly and machine loading it often decides whether a part seats cleanly or jams. SIASUN reaches ±0.02mm on the SN4A-4/0.58 through high-precision global error compensation. The controller corrects for the small deviations that every mechanical arm carries, so that the commanded position and the real position stay closely aligned across the working area rather than at a single calibrated point.

Precision is only useful if it holds when the robot moves quickly. SIASUN therefore pairs the compensation with a variable acceleration algorithm. Instead of applying one fixed acceleration profile, the robot adapts its acceleration to exploit the mechanical performance limits of the arm. This keeps operation stable and efficient and maximises production efficiency. For a production engineer, the combination means that tight positioning and a productive cycle are not competing goals. The arm is designed to deliver both within the same motion.

Why do internal wiring and an IP67 wrist matter inside a machine tool?

Exposed cabling is one of the most common weak points of a robot working in a confined cell. Cables rub against guarding, catch on fixtures and wear through contact with chips and fluids. Routing the wiring inside the arm, as SIASUN does on the SN4A-4/0.58, removes much of that exposure. It also allows the streamlined exterior to pass closer to surrounding equipment. In a machine-tool enclosure or a densely packed electronics line, this difference can decide whether a robot fits at all.

The wrist is the part of the arm that comes closest to the workpiece, and therefore closest to coolant, dust and debris. SIASUN rates the wrist of the SN4A-4/0.58 to IP67, which gives the end of the arm a high level of protection in the conditions typical of machining and parts handling. Robots Middle East reviews the protection needs of the complete installation with each buyer as part of planning the cell.

Who is the SIASUN SN4A-4/0.58 for?

The first group is electronics and 3C manufacturers. Their lines handle small, light components at close spacing, and every square metre of the production hall carries a cost. A 4kg payload and a 580mm reach match the scale of such parts and workstations. The compact body allows the robot to sit between existing stations rather than demanding a redesigned line.

The second group is machining businesses and CNC workshops that want to automate the loading and unloading of their machines. Work inside machine tools is one of the scenarios the robot is built for, and the IP67 wrist and internal wiring suit that setting. Such workshops can add automated tending without enlarging the cell around each machine.

The third group is system integrators who build turnkey cells for their own customers. The modular design supports compact integration, and the application areas of handling, assembly, and loading and unloading cover the bulk of small-part automation work. Integrators can treat the SN4A-4/0.58 as a compact building block for cells where footprint is the deciding constraint.

Where an application needs a heavier payload or a longer reach than this arm offers, buyers are advised to review the wider SIASUN Industrial Robots range. For comparison with other manufacturers, the general Industrial Robots category is also available. Robots Middle East can advise on which model suits a given task.

What is the SIASUN SN4A-4/0.58 used for?

1. Machine tool loading and unloading: placing blanks into the machine and removing finished parts from within the enclosure.
2. Electronics component handling: moving small parts and sub-assemblies between stations on compact 3C production lines.
3. Small-part assembly: inserting, placing and joining light components where repeatable positioning is essential.
4. Pick-and-place in tight cells: transferring parts between trays, fixtures and conveyors where floor space is limited.
5. Presenting parts to inspection: positioning workpieces consistently in front of cameras or gauges as part of a handling sequence.
6. Modular cell integration: serving as a compact handling unit within integrator-built automation cells.

Pricing and Availability

Robots Middle East supplies the SIASUN SN4A-4/0.58 on a quotation basis. This allows each offer to reflect the intended application, the required configuration and the delivery destination. When you submit an enquiry, please describe the task, the parts to be handled and the cell or machine the robot will work in, so that we can prepare an accurate proposal. Delivery, customs clearance and after-sales support are arranged together with your quotation. To begin, please use the enquiry form available on this page.

Frequently Asked Questions

What payload does the SIASUN SN4A-4/0.58 carry?

The SN4A-4/0.58 has a payload of 4kg. This suits light components, small sub-assemblies and compact grippers.

What is the reach of the SN4A-4/0.58?

The robot has a reach of 580mm. This allows it to serve a compact working area from a small installation footprint.

How precise is the robot?

Its repeatability is ±0.02mm. This is supported by high-precision global error compensation and a variable acceleration algorithm that keeps motion stable and efficient.

Which part of the robot is rated IP67?

The IP67 rating applies to the wrist, the part of the arm that works closest to coolant, dust and debris.

Can the SN4A-4/0.58 work inside a machine tool?

Yes. The robot is designed for the interior of machine tools as well as for 3C factories. Its compact structure, internal wiring and protected wrist all support that use.

Which tasks is the SN4A-4/0.58 designed for?

Its application areas are handling, assembly, and loading and unloading. These cover most small-part automation work on compact production lines.

Where can I buy the SIASUN SN4A-4/0.58 and what does it cost?

You can buy the SIASUN SN4A-4/0.58 from Robots Middle East, which supplies it across the Middle East. Pricing is provided by individual quotation, which you can request through the enquiry form on this page.

Summary

The SIASUN SN4A-4/0.58 is built for the narrow, demanding spaces where automation is most often ruled out: the interior of a machine tool, a crowded electronics line or an integrator's compact cell. Internal wiring, a streamlined exterior and a modular design let it fit where larger arms cannot. Its IP67 wrist is designed for the coolant and debris found close to the workpiece. With a 4kg payload, a 580mm reach and ±0.02mm repeatability, it covers handling, assembly, and loading and unloading for small parts. Robots Middle East supplies the robot with delivery and support arranged through a single quotation. For any team looking to automate a cell that has no room to spare, this page is the starting point.