SZGH-1415-L Collaborative Laser Welding Robot — Light Series

What Is the SZGH-1415-L?

The SZGH-1415-L is a 6-axis collaborative laser welding robot in SZGH's Light Series, purpose-built to carry fiber laser welding heads up to 15 kg across a 1,464.3 mm armspan with ±0.03 mm repeat positioning accuracy. Unlike arc welding cobots, the SZGH-1415-L delivers no-spatter, low-heat laser welding that produces precision seams on stainless steel housings, medical device enclosures, consumer electronics shells, and automotive thin panels — all without a safety fence, making it deployable directly alongside human operators on any production floor.

Full Technical Specifications

5 Core Advantages of the SZGH-1415-L

Full-Body IP65 Protection — Not Just the Joints

The SZGH-1415-L carries IP65 certification across its entire body, not merely at the wrist or individual joint seals. This means the robot operates reliably in environments with metal dust, coolant mist, and workshop humidity without seal degradation over time. For laser welding applications near cutting fluid or fine metallic particulate, this whole-body protection directly extends service life and reduces maintenance intervals.

6-Button Drag-and-Drop Teaching — Zero Programming Required

Hand-guide the robot arm to each welding waypoint, press confirm, and the path is stored — no G-code, no robotics programming background required. The 6-button drag-teach interface means a skilled laser welding technician can train a new weld path in minutes rather than days, dramatically cutting changeover time between part families. This is especially valuable for contract manufacturers handling diverse stainless steel and electronics enclosure orders.

3,000 mm/s Tool Speed — Industrial Throughput with Cobot Safety

At 3,000 mm/s maximum tool speed, the SZGH-1415-L matches the travel speed of conventional industrial laser welding robots while retaining collaborative-grade force sensing and collision detection that eliminates the safety fence. On thin sheet stainless steel (0.5–2 mm), this speed translates directly to cycle time reduction — the laser head moves fast enough to exploit the full power window of continuous-wave fiber lasers without thermal runaway.

XI Black Box — Industry-First Fault Site Data Recorder

SZGH's proprietary XI Black Box records the robot's operational state, joint loads, speed, and control signals at the moment of any fault or collision event — the same data-capture principle used in aviation. When an unexpected stop occurs during a precision laser welding run, maintenance engineers retrieve the exact pre-fault conditions rather than guessing from symptoms. This cuts mean-time-to-repair and is uniquely valuable in regulated industries such as medical device manufacturing where process traceability is required.

100 Safety Self-Checks + 10-Level Collision Protection

Before and during each cycle, the SZGH-1415-L runs 100 independent safety self-checks covering joint torque limits, speed envelopes, and path integrity. The 10-level collision detection system is tunable to the sensitivity required by the application — from gentle hand-guided teaching mode to firm production-speed protection. Combined with SEMI S2 and NRTL certifications, this package satisfies the risk assessment requirements of semiconductor fab, medical OEM, and automotive Tier 1 environments without adding a physical safety cage.

Application Scenarios

Full Model Comparison — SZGH Collaborative Welding Robot Series

Selection Guide: Choose the Light Series (L) when your process uses a fiber laser welding head and demands spatter-free precision seams on thin or coated materials. Choose the Master Series (A) when your process uses MIG/MAG/TIG wire and involves structural steel or thick-plate joints. Both series share the same IP65 body, drag-teach interface, and no-fence safety certification — the key difference is welding process and material range.

Customer Case Study — Japan

"We eliminated post-weld polishing entirely — and cut our rejection rate from 4.2% to 0.3%."

Our factory in Osaka produces precision stainless steel housings for laboratory analytical instruments. Before adopting the SZGH-1415-L, we were using a semi-automated TIG station that left oxidation discoloration on every seam. Every batch required a dedicated hand-polishing step before anodizing — 45 minutes per unit, with a 4.2% cosmetic rejection rate that our OEM customer was no longer willing to tolerate.

I visited SZGH's demonstration center in Shenzhen in late 2025 and watched the SZGH-1415-L run a live demo on 0.8 mm SUS304 panels using a 1,000W CW fiber laser. The seams were mirror-clean with no heat discoloration and no spatter whatsoever. We integrated the robot with our existing IPG fiber laser source in six weeks. Programming the 11-waypoint weld path took our technician under 90 minutes using drag-teach.

Today our polishing step is eliminated completely. Rejection rate dropped from 4.2% to 0.3%, cycle time per housing fell from 8.4 minutes to 5.1 minutes, and we recovered our investment in under 14 months. The IP65 body handles our cleanroom-adjacent environment without any additional enclosure.

By Fannie Chen, CEO, Shenzhen Guanhong Automation Co., Ltd. (SZGH) | May 2026

Control System & Integration

EtherCAT High-Speed Bus

The SZGH-1415-L runs on a 1 kHz EtherCAT real-time bus, providing deterministic sub-millisecond control loop timing. This is critical for laser welding where the robot's motion controller must synchronize precisely with the laser source's power modulation — even minor timing jitter causes inconsistent penetration depth on thin stainless steel.

Compatible Laser Types

The 15 kg payload comfortably accommodates all common laser welding head configurations:

• Continuous Wave (CW) Fiber Laser: 500W–3,000W heads from IPG, Raycus, MAX, JPT

• Pulsed Fiber Laser: Low-heat precision welding for medical-grade alloys, copper, and thin aluminum

• Wobble Welding Heads: Oscillating beam heads for gap-bridging on automotive panels

• Remote Laser Welding (Scanner): Compatible with galvo scanner heads within payload limits

Vision & Sensing Integration

The SZGH-1415-L supports native 2D and 3D vision integration via its EtherCAT tool port and RS485 communication channel. Weld seam tracking cameras, structured-light 3D scanners, and line laser sensors mount directly to the tool flange or external brackets. Vision-guided seam tracking is especially valuable for thin-sheet stainless steel fixtures with cumulative forming tolerances.

15-Axis Synergy

Using SZGH's multi-axis controller, the SZGH-1415-L can be synchronized with up to 14 additional external axes — rotary positioners, linear tracks, or a second robot — creating a fully coordinated 15-axis laser welding cell. Part rotation and robot motion are interpolated in real time, enabling continuous-seam welding on cylindrical or complex 3D geometry without manual repositioning.

Offline Programming

Full offline programming support via compatible CAM/robot simulation packages. Import CAD geometry, generate weld paths, simulate for collision, and upload directly — eliminating teach-pendant time for complex multi-seam components common in electronics and medical device manufacturing.

Certifications & Warranty

Warranty: 18 months from date of shipment, covering all mechanical and electrical components under normal operating conditions. SZGH operates a global service network with regional support partners covering East Asia, Southeast Asia, Europe, the Americas, and the Middle East. Spare parts inventory maintained for minimum 7 years from production date.

Frequently Asked Questions

Q1: Does the SZGH-1415-L require a safety fence?

No. The SZGH-1415-L is a certified collaborative robot with 10-level collision detection, 100 pre-cycle safety self-checks, and NRTL/CE/SEMI S2 safety certifications. It is designed to operate alongside human workers without a physical safety cage, subject to a site-specific risk assessment per ISO/TS 15066 — which SZGH's application engineering team supports as part of installation.

Q2: What is the difference between the SZGH-1415-L (Light Series) and the SZGH-1415-A (Master Series)?

Both models share the same 15 kg payload, 1,464 mm reach, and ±0.03 mm positioning accuracy, but they are engineered for entirely different welding processes. The 1415-A (Master Series) is designed for arc welding — MIG, MAG, and TIG — on structural steel and thick plate, where the torch weight and wire feed system are primary considerations. The 1415-L (Light Series) is built for fiber laser welding heads, delivering spatter-free, near-zero heat distortion welds on stainless steel, thin aluminum, and precision components. The Light Series produces a finish that typically requires no post-weld grinding or polishing.

Q3: How difficult is it to program the SZGH-1415-L for a new weld path?

Very straightforward. The drag-teach system requires no robotics programming knowledge. A technician physically guides the robot arm to each weld start point, intermediate waypoints, and end point, pressing the 6-button confirmation interface at each position. A complete weld path for a typical stainless steel enclosure (8–12 waypoints) takes 30–90 minutes to teach on the first part. Path editing for similar parts is faster still.

Q4: What materials and thicknesses is the SZGH-1415-L suitable for?

The Light Series is optimized for laser welding thin-to-medium gauge materials: stainless steel (0.3–4 mm), mild steel (0.5–4 mm), aluminum alloys (0.5–3 mm), titanium (0.3–2 mm), copper alloys (0.3–1.5 mm), and coated materials such as galvanized steel. For thick-plate structural joining above 6 mm, the Master Series arc cobots (SZGH-1415-A or SZGH-1820-A) are the appropriate choice.

Q5: What does IP65 cover on the SZGH-1415-L?

IP65 on the SZGH-1415-L covers the entire robot body — all six joints, the arm links, the base, and the tool flange area. IP6X means complete protection against dust ingress; IPX5 means protection against low-pressure water jets from any direction. This is full-body certification, not just wrist-joint sealing as found on some competitive models.

Q6: Can the SZGH-1415-L handle heavy fiber laser welding heads?

Yes. The 15 kg payload is sized specifically to accommodate industrial fiber laser welding heads, including wobble heads with integrated water cooling, which can weigh 6–12 kg, and remote welding scanner units. The remaining payload margin covers cable management assemblies, seam tracking sensors, and shielding gas nozzles typically required in production setups.

Q7: What is the difference between the "AW" (arc welding) and "L" (laser) cobot packages?

The AW package (Master and Easy Series) includes arc-optimized software functions: wire feed synchronization, arc welding process parameters, touch sensing for seam finding, and integration with common MIG/MAG wire feeders and TIG power sources. The L package (Light Series) includes laser-optimized functions: laser power analog output via the tool port AI channels, laser on/off synchronization with robot motion via EtherCAT, weld speed control for heat input management, and native compatibility with fiber laser source communication protocols.

Q8: What is the expected ROI timeline for a precision manufacturer?

For typical precision electronics or medical device manufacturers replacing manual TIG or semi-automated laser stations, SZGH customers report payback periods of 12–20 months. The primary savings drivers are: elimination of post-weld polishing labor (1–3 operators per shift), reduction in cosmetic rejection rates (typically from 2–5% to under 0.5%), and faster cycle times due to consistent laser travel speed. Exact payback depends on shift pattern, part complexity, and local labor costs.

Request a Quote or Technical Consultation

Ready to evaluate the SZGH-1415-L for your laser welding application? Our application engineering team provides free process assessments, including material suitability review and estimated cycle time analysis.

Related Products

Explore the full SZGH collaborative welding robot lineup:

• SZGH-1415-A — Master Series Arc Welding Cobot, 15 kg / 1464 mm: The arc welding counterpart to the 1415-L. Same reach envelope, built for MIG/MAG/TIG on structural steel and thick plate.

• SZGH-1820-L — Light Series Laser Welding Cobot, 20 kg / 2027 mm: The large-reach laser welding cobot for automotive body panels, large enclosures, and heavier fiber laser heads up to 20 kg.

• SZGH-HZ1500-B-6 — Traditional 6-Axis Laser Welding Robot, 1500 mm: High-speed industrial (non-collaborative) laser welding robot for fully enclosed automation cells with maximum throughput requirements.

• SZGH-HZ2000-B-6 — Traditional 6-Axis Laser Welding Robot, 2000 mm: Large-reach industrial laser welding robot for automotive and heavy fabrication cells requiring maximum speed without collaborative-mode constraints.