SZGH S800-B-4 SCARA Robot — 8 kg Payload | 800 mm Reach | ±0.03 mm Repeatability

What Is the SZGH S800-B-4?

The SZGH S800-B-4 is a 4-axis SCARA industrial robot delivering an 8 kg payload capacity and 800 mm horizontal reach with ±0.03 mm repeatability, powered by absolute-value servo drives that eliminate homing after power loss — making it the highest-payload, longest-reach model in SZGH's S-Series SCARA line, engineered for high-speed assembly, precision pick-and-place, and heavy-component handling in electronics, automotive, and consumer goods manufacturing.

Full Technical Specifications

Core Advantages

S-Series Maximum Payload: 8 kg — Handle What Others Can't

At 8 kg, the S800-B-4 carries the heaviest loads in the entire S-Series lineup. Combined tooling, fixtures, and workpieces up to 8 kg are handled without speed compromise. This opens SCARA automation to heavier components — engine sensors, multi-part assemblies, packaged goods — where lighter SCARA robots (typically 1–5 kg) are insufficient.

S-Series Maximum Reach: 800 mm — Cover Wider Workstations

The 800 mm arm span covers larger pallet pitches, wider conveyor gaps, and bigger workpiece envelopes without repositioning the robot base. Compared to the S450 (450 mm) and S600 (600 mm), the S800's footprint advantage is decisive in any line layout where workpieces exceed 500 mm in the longest dimension.

Absolute Value Servo: Zero Re-Homing After Power Loss

Every S-Series robot ships with absolute-value encoders on all axes. After an emergency stop, power interruption, or shift changeover, the robot resumes production immediately — no time-consuming homing cycles. In 24/7 lines, this directly translates to higher uptime and simpler shift transitions.

±0.03 mm Repeatability — Precision Across the Full Work Envelope

±0.03 mm is tighter than most mass-production SCARA robots in this payload class. For connector insertion, PCB component placement, and sensor module assembly with tolerances in the ±0.05–0.1 mm range, the S800-B-4 operates comfortably within process window, reducing rejects without additional vision correction.

Built-In Pneumatic Interface — Zero External Plumbing Complexity

The integrated 6×2 tracheal interface routes air lines internally through the arm. End-of-arm tooling (vacuum cups, grippers, pneumatic chucks) connects cleanly with no external hose bundles that snag, wear, or require re-routing when the arm sweeps through its range.

Application Scenarios

Model Comparison

S-Series SCARA Internal Comparison

All S-Series models share: absolute value servo, 220V universal power, 6×2 built-in pneumatic, and the same ±0.03 mm repeatability standard.

SCARA vs. Other Robot Types — When to Choose the S800-B-4

Choose the S800-B-4 when: tasks involve high-speed horizontal motion, fixed-height insertion, pick-and-place, or assembly at a consistent Z level with payloads between 5–8 kg.

Consider a 6-axis robot when: the application requires complex 3D paths (e.g., welding, surface coating, or multi-angle assembly not achievable in one Z-plane).

Customer Case Study

By Fannie Chen, CEO, Shenzhen Guanhong Automation Co., Ltd. (SZGH)

One of our most-referenced deployments in the Southeast Asia automotive electronics sector came from a Malaysian manufacturer producing ABS sensor modules. Each completed module — including the housing, connector assembly, and test jig fixture — weighed approximately 6.5 kg. Their previous setup used a 6-axis articulated robot: expensive, slow on the horizontal insertion cycle, and carrying high maintenance costs due to the complexity of 6-axis drives and calibration.

When their engineering team contacted us, their first question was whether a SCARA could actually deliver the precision required for sensor connector insertion. Their tolerance spec was ±0.1 mm — and they were skeptical a SCARA could hold that consistently at 8 kg.

We recommended the S800-B-4 for three reasons. First, the 8 kg payload had a real safety margin over their 6.5 kg workpiece — dynamic loads during acceleration are absorbed comfortably within the rated capacity. Second, ±0.03 mm repeatability gave them a 3× margin inside their ±0.1 mm process tolerance window. Third, the horizontal-joint SCARA structure is fundamentally faster on linear insertion motions than a 6-axis robot following a curved interpolation path to arrive at the same point.

After commissioning and in-house testing, their cycle time per sensor module dropped by approximately 35% compared to the previous 6-axis setup. Maintenance call-outs in the first year were zero. This case now travels ahead of us in the Malaysian automotive electronics community — we hear about it from new prospects before we even have a chance to introduce ourselves.

Control System & Configuration

The S800-B-4 is compatible with SZGH's dedicated SCARA controller platform, which provides:

• G-code / dedicated SCARA motion language for path programming

• Teach pendant with graphical interface for point-to-point and linear interpolation programming

• I/O interface: 16 digital inputs / 16 digital outputs (expandable)

• Communication: RS-232, RS-485, Ethernet (optional fieldbus: EtherCAT, PROFIBUS)

• Pneumatic valve control: direct from controller I/O to built-in tracheal interface

• Emergency stop & safety relay: compliant with IEC 60204-1

Recommended End-of-Arm Tooling:

• Pneumatic parallel gripper (2-jaw or 3-jaw, payload-rated to 8 kg)

• Vacuum cup array with venturi generator

• Rotary tool spindle for screw driving

• Camera vision bracket (2D vision for part-present detection and offset correction)

Software Compatibility:

• Standalone controller (no PC required)

• Optional PC-based HMI software for program management and data logging

• Third-party PLC integration via digital I/O or fieldbus

Certifications & Warranty

Frequently Asked Questions

Q1: What is the maximum payload of the S800-B-4, and does it include the weight of the end-of-arm tooling?

The rated payload is 8 kg. This figure refers to the total mass at the tool flange — including the weight of any gripper, vacuum cup, or end-of-arm tooling. For example, if your gripper weighs 1.5 kg, the usable workpiece payload is 6.5 kg. Always account for tooling mass when specifying the robot.

Q2: Do I need to re-home the S800-B-4 after a power outage or emergency stop?

No. The S800-B-4 uses absolute-value servo encoders on all axes. After any power interruption — including E-stop, power failure, or shift changeover — the robot resumes from its last known position without any homing routine. This is a significant productivity advantage in 24/7 production environments.

Q3: What is the difference between the S800-B-4 and the S600-B-4?

The S600-B-4 offers a 5 kg payload and 600 mm reach. The S800-B-4 extends both figures to 8 kg and 800 mm. Both models share the same ±0.03 mm repeatability, absolute-value servo system, and pneumatic interface. The S800-B-4 is the right choice when workpieces or combined tooling + workpiece weight exceeds 5 kg, or when the work envelope requires a reach beyond 600 mm.

Q4: Can the S800-B-4 be used for PCB handling or electronics assembly?

Yes. The ±0.03 mm repeatability and high-speed horizontal motion profile are well-suited to PCB board loading/unloading, component tray handling, and sub-assembly insertion tasks. The built-in pneumatic interface allows direct connection of vacuum cup arrays for flat board handling. For fine-pitch component placement (SMT), additional vision correction is recommended.

Q5: What power supply does the S800-B-4 require?

The S800-B-4 operates on 220V AC, 50 or 60 Hz. This single-phase universal voltage covers most industrial installations globally — including Asia, Europe, the Middle East, and the Americas — without a step-up or step-down transformer.

Q6: How precise is the Z-axis, and can the Z-axis stroke be customized?

The Z-axis stroke is +100 mm / −80 mm as standard, with a maximum speed of 800 mm/sec. The same ±0.03 mm repeatability applies to the Z-axis. Custom Z-stroke configurations are available — contact SZGH with your specific height requirement.

Q7: Does the S800-B-4 come with a controller, or is the controller sold separately?

The S800-B-4 is sold as a robot arm unit. The matching SZGH SCARA controller is available as a standard configuration option. Please specify "complete system" when inquiring to receive a quote including the controller, teach pendant, and standard cables.

Q8: What is the delivery lead time and warranty coverage?

Standard lead time is 15–30 business days depending on configuration and order volume. Warranty coverage is 12 months from delivery. SZGH provides WhatsApp 24/5 technical support and a global agent network (USA, Turkey, Romania, Russia, Egypt, Thailand, Mexico) for local service.

Request a Quote

Speak with an application engineer about the S800-B-4 for your specific production requirement — payload, reach, cycle time, and end-of-arm tooling can all be reviewed before purchase.

Related Products

• SZGH S600-B-4 — 5 kg payload, 600 mm reach SCARA; the standard-duty option in the S-Series for workpieces under 5 kg

• SZGH S450-B-4 — 3 kg payload, 450 mm reach; compact SCARA for tight-space or tabletop installations

• SZGH T1000-C-6 — 6-axis articulated robot for complex 3D-path applications where SCARA's planar motion is insufficient

• SZGH Arm-2442 — 2 kg collaborative robot arm with drag teaching and collision detection for human-adjacent or laboratory applications