SIASUN Horizontal Multi-Jointed Robot (Horizontal Multi-Jointed Robot)

Within SIASUN’s industrial robot portfolio, the company markets SCARA robots as high-speed, high-precision automation equipment for tasks such as handling, sorting, assembly, and dispensing/gluing, with particular emphasis on electronics manufacturing (often referred to as 3C: computers, communications, and consumer electronics) and automotive electronics applications.

Design and Features

SCARA-based “horizontal” kinematics

A SIASUN horizontal multi-jointed robot typically follows the SCARA layout: two rotary joints for rapid XY positioning, a vertical linear axis (Z) for approach/retract, and a wrist rotation axis for part orientation. This design is widely used when production lines require short cycle times, consistent repeatability, and a compact footprint relative to throughput.

Compact structure and low-height integration

SIASUN describes its SA4A series as a new-generation SCARA line designed to be lower in overall height and easier to integrate in space-constrained cells, improving flexibility for dense line layouts and enclosed workstations.

High-speed takt performance

For fast pick-and-place and assembly, SIASUN highlights cycle-time performance in its SCARA lineup. For example, the SA4A-4/0.40 lists a standard cycle time up to 0.38 s, reflecting the core value proposition of horizontal multi-jointed robots: high throughput in repetitive, short-stroke motions.

Usability and integration options

SIASUN also positions its SCARA products as easier to deploy via multiple teaching and programming methods, and notes bus/IO expandability and wiring options intended to support common factory automation ecosystems.

Technology and Specifications

Because “SIASUN Horizontal Multi-Jointed Robot” refers to a category, specifications vary by model. A representative example from SIASUN’s published SCARA product page illustrates typical parameters:

Example model: SIASUN SA4A-4/0.40 (SCARA)

• Rated payload: 4 kg

• Arm reach: 400 mm

• Controlled axes: 4 (SCARA class)

• Work range (joint limits): J1/±132°, J2/±141°, J3/150 mm, J4/±360°

• Repeatability: J1+J2/±0.01 mm; J3/±0.01 mm; J4/±0.01°

• Standard cycle time: up to 0.38 s

• Mounting: tabletop installation

• Ingress protection: IP20 (typical for enclosed or controlled environments)

Control and motion performance considerations

In SCARA systems, cycle time and repeatability depend on payload, motion profile, path planning, and end-effector mass (grippers, vacuum tools, screwdrivers, dispensers). SIASUN attributes improved vibration control to “core components and algorithms” for reduced oscillation during fast moves—an important factor for maintaining accuracy at high takt rates.

Applications and Use Cases

SIASUN positions its horizontal multi-jointed (SCARA) robots for production tasks where speed and repeatability matter more than complex 6-axis orientation.

3C electronics and automotive electronics

SIASUN explicitly highlights 3C and automotive electronics as major target industries for its SA4A SCARA series, reflecting common SCARA deployment in device assembly, connector insertion, module handling, and subassembly transfer.

Typical automation tasks

The SA4A-4/0.40 product page lists application domains that align with core SCARA use cases:

• Handling (搬运)

• Sorting (分拣)

• Assembly (装配)

• Dispensing / gluing (涂胶)

Cell designs and end-of-line workflows

Horizontal multi-jointed robots are frequently integrated into:

• Inline workstations (conveyors + vision + pick/place)

• Rotary indexing tables (high-cycle assembly and testing)

• Kitting and tray loading/unloading (electronics, small parts)

• Dispensing stations (sealant, adhesive beads, potting preparation)

Advantages / Benefits

High throughput for short-cycle automation

A primary advantage of SCARA-type horizontal multi-jointed robots is rapid planar motion. SIASUN’s published cycle-time figure (e.g., 0.38 s for a standard cycle on SA4A-4/0.40) reflects this throughput orientation.

Repeatability suitable for precision assembly

Repeatability in the ±0.01 mm class (model-dependent) supports tight-tolerance processes such as small-part placement, adhesive dispensing patterns, and electronics assembly steps.

Compact footprint and line-friendly integration

Lower-height designs and tabletop mounting options can reduce cell volume, simplify guarding, and improve accessibility for maintenance and tooling changeovers in compact production areas.

Expandability and factory connectivity

SIASUN emphasizes expandability and bus support (model/option dependent), which helps integrate the robot controller with PLCs, vision systems, and production execution layers.

FAQ Section 

What is a SIASUN Horizontal Multi-Jointed Robot?

A SIASUN Horizontal Multi-Jointed Robot generally refers to SIASUN’s SCARA-class industrial robots, designed for fast, precise motion primarily in the horizontal (XY) plane with a vertical (Z) stroke for assembly and pick-and-place tasks.

How does a horizontal multi-jointed (SCARA) robot work?

It uses two rotary joints to position the arm quickly across a flat workspace, a vertical axis to move up/down to the part, and a wrist rotation axis to align the tool or component—optimizing speed and repeatability for repetitive factory operations.

Why are SIASUN horizontal multi-jointed robots important in manufacturing?

They help increase line throughput and consistency in high-volume production by automating repetitive tasks like handling, sorting, assembly, and dispensing, often with repeatability suited to precision manufacturing.

Where are SIASUN horizontal multi-jointed robots commonly used?

They are commonly used in 3C electronics and automotive electronics production, including small-part assembly cells, tray loading/unloading, and adhesive dispensing stations.

What are the benefits of SIASUN horizontal multi-jointed robots?

Key benefits include high cycle speed, repeatable positioning, compact integration (including tabletop setups), and automation features aimed at easing deployment and connectivity in modern production lines.

Summary

The SIASUN Horizontal Multi-Jointed Robot category corresponds primarily to SIASUN’s SCARA industrial robots, engineered for high-speed planar motion, precise repeatability, and compact production-line integration. With published model examples emphasizing fast standard cycles, fine repeatability, and electronics-oriented application coverage, SIASUN’s horizontal multi-jointed robots are positioned for modern assembly, sorting, handling, and dispensing workflows in high-volume manufacturing.