SZGH-M1400-3C-6 — 6-Axis Industrial Polishing & Grinding Robot

What Is the SZGH-M1400-3C-6?

The SZGH-M1400-3C-6 is a six-axis industrial robot purpose-built for surface finishing applications, delivering a 1,400 mm reach and 30 kg payload with ±0.08 mm repeatability. Unlike general-purpose industrial arms, it ships with a built-in grinding process package — pre-integrated force-control parameters, trajectory optimization algorithms, and direct interfaces for floating grinding wheels, belt sanders, and polishing heads — making it the preferred choice for automated deburring, weld seam grinding, and large-format metal surface finishing.

Full Technical Specifications

Axis Motion Range

Maximum Joint Speed

Core Advantages

Built-In Grinding Process Package — M-Series Exclusive

The M1400-3C-6 ships with SZGH's proprietary grinding process package, not available on any T-Series robot. It includes pre-configured force-control grinding parameters, trajectory optimization algorithms for complex surface geometries, and direct hardware integration interfaces for floating grinding wheels, belt sanders, and rotary polishing heads. Customers skip weeks of custom integration work and reach stable production within days, not months.

Optimal Mid-Range Reach for Industrial Metal Finishing: 1,400 mm

At 1,400 mm, the M1400-3C-6 occupies the critical mid-range of the M Series. It covers work envelopes too large for the M1000 (e.g., full-length door frames, large castings, sheet-metal panels) while maintaining the positional precision that the 1,850 mm M1850 trades away for sheer range. The result: a single cell can handle workpieces up to ~1,200 mm in their longest dimension without repositioning.

30 kg Payload Covers the Full Industrial Grinding Tool Stack

At 30 kg, the robot handles the heaviest belt sanders (8–15 kg), abrasive disc tools, and the workpiece weight from wrist-mounted part fixtures simultaneously. Most industrial grinding end-effectors weigh 5–15 kg; adding a 10–15 kg workpiece adapter still leaves margin. No payload trade-offs for common surface-finishing tooling.

High-Speed Wrist (222°/sec on Axes 4–6) for Continuous Large-Area Polishing

Axes 4–6 run at 222°/sec — the highest wrist speed in the M Series. This enables continuous, high-throughput polishing passes across large metal surfaces without cycle-time penalties from slow wrist repositioning. Axis 2 at 180°/sec supports wide sweeping motions across full workpiece faces in a single pass.

3rd-Gen Compact (3C) Body Design — Stiffened for Grinding Vibration

The "3C" designation marks the third-generation compact chassis, engineered with reinforced joint housings and vibration-damping structural geometry. Compared to earlier generations, the 3C platform reduces tool chatter transmission to the wrist by design, protecting both surface finish quality and end-effector service life under the sustained high-frequency vibration of grinding operations.

Application Scenarios

M Series Comparison: Which Robot Is Right for You?

Quick selection guide:
Need to carry heavy grinding tools (>30 kg) with tight tolerance? → M1000-E-6
Standard industrial door frames, castings, metal panels up to ~1.2 m? → M1400-3C-6 (this model)
Extra-large workpieces, furniture frames, big structural sections? → M1850-3C-6

Customer Case Study

One of the inquiries I remember most clearly came from a steel door and window frame manufacturer in Turkey. They exported to Europe, and their buyers were specifying weld-seam surface finish at Ra ≤ 1.6 μm — a requirement that their existing manual grinding line was consistently failing to meet.

When we first spoke, their export pass rate was around 82%. Each door frame took a worker about 15 minutes to hand-grind, and the result varied from person to person and shift to shift. Return freight costs from European customers were eating into their margins, and the quality complaints were damaging relationships they had spent years building.

Their first concern when we proposed the M1400-3C-6 was one I hear often: "Our products are not standardized. Every batch has slightly different frame sizes. Robots only work on repetitive, identical parts."

That assumption is exactly what the M1400-3C-6's integrated trajectory adaptation function addresses. The grinding process package uses vision-guided workpiece registration — the robot reads the actual weld seam position on each incoming frame and adjusts its grinding path in real time, rather than executing a fixed program. It does not matter if the weld bead is 3 mm left of nominal or if the frame is 20 mm shorter than last batch; the path adapts.

We committed to a three-day on-site commissioning at their facility. The first day, stable yield was 72% — we were still calibrating the force-control parameters to their specific belt sander and workpiece material. Day two: 88%. By day three, we were consistently holding 97.4% pass rate against their Ra ≤ 1.6 μm specification.

Today, their cycle time per door frame is 4.5 minutes — down from 15 minutes by hand. Export pass rate has been above 97% since commissioning. The robot paid back its capital cost in under 14 months based on the labor savings and reduction in returned goods alone.

Three months after installation, that customer introduced us to a neighboring factory — a metal furniture manufacturer — who purchased a second M1400-3C-6 for stainless steel panel polishing. Word of mouth is the best product validation I know.

— Fannie Chen, CEO, Shenzhen Guanhong Automation Co., Ltd.

Control System & Compatibility

The SZGH-M1400-3C-6 is designed to operate with SZGH's own CNC robot controller series, providing a fully integrated hardware-software stack:

• SZGH Robot Controller (CNC): Dedicated motion control, pre-loaded with M-Series grinding process package parameters. EtherCAT-based servo communication for deterministic real-time response.

• Grinding Process Package Software Module: Force-control grinding mode, trajectory adaptation engine, end-effector parameter library (floating spindle, belt sander, polishing head presets). Configurable compliance windows per application.

• Vision Integration Support: Compatible with 2D/3D vision systems for workpiece registration and seam detection. Standard communication via Ethernet/TCP or I/O trigger for third-party vision hardware.

• End-Effector Interfaces: Direct wiring support for pneumatic floating spindles, electric belt sander units, and quick-change tool couplers (ISO 9283 flange). Tool weight up to 30 kg supported at full rated payload.

• Safety I/O: Dual-channel E-stop, safety fence interlock, speed monitoring zone outputs. Compatible with major safety PLC platforms.

• Programming: SZGH teach pendant (6D joystick + touch screen), offline programming via SZGH Studio (PC-based simulation and path generation). G-code-compatible custom macro support for advanced users.

Recommended Accessories & Partner Products

Certifications & Warranty

Certifications

Warranty & Support

Frequently Asked Questions

What makes the M1400-3C-6 different from a standard 6-axis robot for grinding tasks?

The M1400-3C-6 ships with SZGH's built-in grinding process package — pre-configured force-control parameters, trajectory optimization algorithms, and pre-wired interfaces for grinding end-effectors (belt sanders, floating spindles, polishing heads). A standard industrial robot requires significant custom integration work to achieve stable grinding results. The M-Series process package compresses commissioning time from weeks to typically 2–5 days.

Can the M1400-3C-6 handle variable workpiece sizes, or does it require identical parts?

Yes, it handles variable sizes. The grinding process package includes a trajectory adaptation function: using a vision-guidance input, the robot reads each workpiece's actual geometry and weld seam position and adjusts the grinding path accordingly. Batch-to-batch size variation and workpiece positional tolerances are compensated in real time. It does not require a fixed jig or identical parts per cycle.

What surface finish (Ra) can the M1400-3C-6 achieve on steel weld seams?

With appropriate abrasive selection and process parameter tuning, the M1400-3C-6 regularly achieves Ra ≤ 1.6 μm on steel weld seams — a standard requirement for export-quality structural metal products. Ra ≤ 0.8 μm is achievable for finer finishing applications with multi-stage abrasive sequences. Final Ra depends on abrasive grade, feed force, and surface material.

What is the maximum workpiece size the M1400-3C-6 can process?

With a 1,400 mm reach and ground-mount configuration, the robot comfortably covers workpieces up to approximately 1,200 mm in their longest dimension in a single setup. Larger workpieces can be accommodated with a linear track (robot-on-track) option, extending the effective working length without a second robot.

Is the M1400-3C-6 suitable for ceiling or bracket mounting in a compact cell?

Yes. The robot supports ground, bracket, and ceiling mounting configurations without payload or speed de-rating. Ceiling mounting is commonly used in compact grinding cells to maximize floor space and allow the robot to work above a rotating part fixture — a configuration frequently used for cylindrical vessel shell finishing.

How long does installation and commissioning take?

Typical installation (mechanical mounting, controller wiring, safety integration) takes 1–2 days. Process commissioning — tuning force-control parameters, vision calibration, grinding path programming — takes 2–5 days for standard applications. SZGH provides on-site commissioning support through regional agents in Turkey, USA, Romania, Russia, Egypt, Thailand, and Mexico.

What is the lead time and warranty for the M1400-3C-6?

Standard lead time is typically 4–8 weeks from order confirmation, depending on current production schedule and regional agent stock. The warranty period is 12 months from date of shipment, covering manufacturing defects under normal operating conditions. SZGH's WhatsApp technical support line (24/5) is available throughout and beyond the warranty period.

How does the M1400-3C-6 compare to the M1850-3C-6 for large-part finishing?

The M1400-3C-6 offers tighter repeatability (±0.08 mm vs. ±0.10 mm for the M1850-3C-6) and is the better choice when parts fit within a ~1,200 mm envelope and surface finish precision is critical. The M1850-3C-6 is the right choice when workpieces regularly exceed 1,200 mm — such as full-height door assemblies, large structural steel sections, or automotive body-side panels — where the extra 450 mm of reach eliminates repositioning steps.

Request a Quote

Ready to evaluate the M1400-3C-6 for your production line? Send us your workpiece dimensions, target surface finish (Ra), and production volume. Our application engineers will provide a system proposal — typically within 24 hours on business days.

When reaching out, please include:

• Workpiece material and approximate size

• Target surface finish (Ra value or visual standard)

• Required cycle time or daily production volume

• Existing tooling or end-effectors (if any)

SZGH regional agents are available in USA, Turkey, Romania, Russia, Egypt, Thailand, and Mexico for local support, demos, and on-site commissioning.

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