SZGH Arm-4160: 4-Axis Collaborative Robot Arm — 3.5 kg Max Payload | 600 mm Reach | Arm Series Flagship

What Is the SZGH Arm-4160?

The SZGH Arm-4160 is a four-axis collaborative robot arm and the flagship model of the SZGH Arm series, delivering the highest payload (3.5 kg max) and longest horizontal reach (600 mm) in its class. Designed for fixed-program, high-repetition tasks, it connects via Ethernet or Wi-Fi, accepts 220 V/110 V input globally, and offers a Z-axis stroke configurable up to 1,000 mm — making it well suited for laser engraving feed automation, precision labeling, heavy tool handling, and 3D print platform assistance.

Full Specifications

Important — Drag Teaching & Collision Detection:
The Arm-4160 does not support drag teaching or collision detection. This is a deliberate structural decision, not a feature omission. At 3.5 kg rated payload, the Arm-4160 requires significantly higher joint rigidity and servo preload to maintain ±0.05 mm repeatability under load. This structural stiffness makes manual drag operation mechanically impractical and means torque-deviation collision sensing cannot be reliably separated from normal operating loads. The Arm-4160 is optimized for fixed-program, high-repetition tasks where programs are uploaded once and run at scale — not for frequent hand-guided re-teaching. If drag teaching or collision detection is a requirement for your application, choose the Arm-2442 (2 kg payload, 420 mm reach, both features supported).

Core Advantages

3.5 kg Max Payload — Heaviest Tool Handling in the Arm Series

At 3.5 kg, the Arm-4160 can carry tools and workpieces that the lighter Arm models cannot: laser engraving heads, large pneumatic grippers, multi-cup vacuum assemblies, metal part fixtures, and workpieces up to approximately 2.8–3 kg (accounting for end-effector weight). This opens up applications where the limiting factor has always been load capacity, not precision.

600 mm Reach — Covers Wider Worktables and Larger Fixture Distances

The 600 mm horizontal reach (180 mm more than Arm-2442, 280 mm more than Arm-1832) spans the distance between a staging tray and an engraving machine fixture, two conveyor pick points, or a print platform and a finished-parts bin — without repositioning the robot base. For many fixed-station layouts, this eliminates the need for additional linear axes or slides.

Wi-Fi Multi-Program Switching — Operator-Free Product Changeover

Without drag teaching, the Arm-4160 relies on pre-built programs stored in the controller or uploaded remotely. The Wi-Fi interface enables the robot to receive program-switch commands directly from an order management system, MES, or production scheduling software. For multi-SKU lines running 100–500 units per batch, this means product changeover requires no operator interaction at the robot.

1,000 mm Z-Axis Stroke — Handles Large Vertical Envelopes

Like the Arm-2442, the Arm-4160 supports Z-axis stroke up to 1,000 mm — double the maximum of the entry-level Arm-1832. This enables vertical travel across multi-shelf storage, tall fixture stacks, or print beds at different heights, all within a single robot setup.

Ethernet + Wi-Fi + Dual Voltage — Global Deployment Without Infrastructure Changes

Wired Ethernet provides deterministic latency for synchronized line control. Wi-Fi enables placement flexibility and remote program management without cable runs. The 220 V/110 V dual-voltage supply allows the same unit to be deployed across North America, Europe, Asia, and Middle East markets without transformer modifications.

Application Scenarios

Arm Series Internal Comparison

Selection Guide

• Choose Arm-1832 if payload is under 1 kg, reach under 320 mm, and cost and footprint are the primary constraints (education, demos, very light pipetting).

• Choose Arm-2442 if payload is 1–3 kg and drag teaching or collision detection is required. This is the most flexible model for applications that change frequently or operate in shared human–machine spaces.

• Choose Arm-4160 if payload exceeds 3 kg or reach beyond 420 mm is required, and the task is a fixed, repeating program that runs at scale. Laser engraving feed, precision labeling, and structured pick-and-place into tight fixtures are the natural home for this model. Do not select Arm-4160 if drag teaching or collision detection is a hard requirement — see Arm-2442 instead.

Customer Case Study

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

A gift customization company in Taiwan specializes in laser-engraved metal business card holders and leather notebook covers. Their order sizes run 100–500 pieces per batch, and each item must be positioned into the engraving machine's fixture within ±0.3 mm — any deviation beyond that causes the laser pattern to shift visibly. With manual loading, they were running at approximately ±0.5–1.5 mm placement variation, and operator eye fatigue after several hundred pieces per day was making the problem worse, not better.

The Arm-4160's 600 mm horizontal reach was the first thing that made this application feasible: the distance between the incoming parts tray and the engraving fixture was approximately 550 mm — just within range, with no need to reposition the robot base. The 3.5 kg maximum payload comfortably handled their heaviest item, a solid brass business card holder at approximately 2.8 kg including the gripper weight.

The Wi-Fi connection solved the product changeover problem without requiring operator involvement at the robot. Their order management system sends a product code to the robot controller when a new batch starts; the controller loads the corresponding pre-built placement program automatically. An operator does not need to walk to the machine, open a menu, or select a file. The transition from one SKU to the next takes under five seconds.

After deployment, placement deviation compressed to within ±0.05 mm — well inside the ±0.3 mm tolerance. Defective pieces from misalignment dropped to near zero. The owner told me he photographed the robot and sent the image to his customers as proof of their quality control infrastructure. It became part of their sales pitch. That is not something we design for explicitly, but it is one of my favorite outcomes: when a machine becomes a statement of intent about how seriously a company takes its craft.

Control System & Compatible Accessories

The Arm-4160 ships with the SZGH dedicated four-axis robot controller, which supports:

• Point-to-point (PTP) and continuous path (CP) motion modes

• Multi-program storage — store multiple product programs in controller memory; switch via Ethernet command, Wi-Fi command, or digital input trigger

• I/O expansion — digital inputs/outputs for integration with engraving machines, conveyor triggers, labeling actuators, and safety interlocks

• Ethernet port — for PC-based programming, remote monitoring, and MES/SCADA/ERP integration

• Wi-Fi module — for wireless program upload, batch-switch commands, and real-time status reporting to order management systems

• Teach pendant — for on-machine point-to-point program editing and manual jog

Note on programming: Because the Arm-4160 does not support drag teaching, all programs are entered via teach pendant (jogging each axis to position and saving waypoints) or uploaded from PC via Ethernet/Wi-Fi. This approach is well suited to tasks with stable, known fixture positions that do not change between batches.

Compatible end-effectors and accessories (available separately):

• Heavy-duty vacuum gripper kits (single and multi-cup, rated for up to 3.5 kg)

• Pneumatic parallel gripper (wide-jaw variant for larger workpieces)

• Magnetic gripper (for ferrous metal workpieces)

• Custom mechanical gripper (specify workpiece geometry at order)

• Vision positioning camera bracket

• Custom end-effector flange (specify at order)

Contact export02@szghtech.com for controller integration documentation, I/O wiring diagrams, and MES TCP/IP command protocol.

Certifications & Warranty

All Arm-4160 units are assembled and tested at our Shenzhen facility before shipment. Factory acceptance testing (FAT) reports available on request.

Frequently Asked Questions

Q1: Why doesn't the Arm-4160 support drag teaching, and which model should I choose if I need it?

The Arm-4160 requires higher joint rigidity and servo preload to maintain ±0.05 mm repeatability under its 3.5 kg rated load. This structural stiffness makes manual drag operation mechanically impractical and means the torque deviation window used for collision sensing cannot be reliably distinguished from normal operating loads at this payload level. The Arm-4160 is optimized for fixed-program, high-repetition production. If drag teaching is a requirement, choose the Arm-2442, which supports both drag teaching and collision detection at up to 3 kg max payload and 420 mm reach.

Q2: What is the difference between a collaborative robot and an industrial robot?

A collaborative robot (cobot) is designed to work in proximity to human operators, operating at controlled speeds with safety-conscious design. An industrial robot prioritizes maximum speed and payload in fully fenced, human-excluded cells. The Arm-4160 occupies the space between a desktop robot and a full industrial robot: it delivers higher payload and reach than typical benchtop units, with a form factor and power requirement compatible with small-to-medium production environments. While it does not include collision detection, its 28 kg footprint and fixed-installation design make integration with standard machine guarding straightforward.

Q3: How is the Arm-4160 programmed without drag teaching?

Programs are created by jogging each axis to the desired position using the teach pendant and saving each waypoint — a standard point-to-point teach method used across industrial robotics. For applications with known fixture geometry (laser engravers, labeling stations), positions can also be calculated and uploaded via PC over Ethernet or Wi-Fi. Most Arm-4160 customers program the robot once per product type and store multiple programs in memory for fast switching.

Q4: How does Wi-Fi program switching work in practice?

The SZGH controller exposes a TCP/IP command interface over Wi-Fi. An external system (MES, order management software, or a simple script) sends a program-select command containing the product identifier. The controller loads the corresponding stored program. The switch takes under five seconds and requires no operator action at the robot. Full API documentation is included with the unit.

Q5: What is the maximum Z-axis stroke, and can it be changed after purchase?

The Z-axis stroke is configurable from 100 mm to 1,000 mm and is specified at order. It is a mechanical parameter built into the linear axis assembly and cannot be field-adjusted after manufacture. Specify your required stroke when requesting a quotation.

Q6: Can the Arm-4160 handle a 3.5 kg payload with any end-effector?

The 3.5 kg maximum payload refers to the total mass at the tool flange, including the end-effector itself and the workpiece. For example, a 0.7 kg gripper leaves 2.8 kg of capacity for the workpiece. The actual usable capacity also depends on the center-of-gravity offset of the load from the flange center. Contact us with your end-effector and workpiece specifications and we will confirm the effective payload.

Q7: Is the Arm-4160 suitable for cleanroom or food-contact environments?

The standard Arm-4160 is designed for general industrial environments (5°C–45°C, standard humidity). For cleanroom or food-contact requirements, contact SZGH to discuss material and lubrication options for the end-effector interface. Additional guarding of the arm body may be required for Class 100–10,000 cleanroom applications.

Q8: How does the Arm-4160 compare to the SZGH S600-B-4 SCARA robot?

The S600-B-4 is a high-speed SCARA optimized for maximum horizontal cycle throughput in dedicated high-volume pick-and-place lines. The Arm-4160 is better suited when: (a) vertical Z-axis stroke beyond 500 mm is required, (b) payload exceeds typical SCARA capacity for this class, (c) Wi-Fi remote program switching from an order management system is needed, or (d) the application is medium-volume multi-SKU production rather than single-SKU high-speed throughput. For pure horizontal speed at fixed pitch, the S600-B-4 may cycle faster.

Request a Quote

Ready to configure your Arm-4160? Contact our export team for pricing, Z-axis stroke options, lead time, and shipping to your country.

→ Get a Quote for SZGH Arm-4160

Response within 1 business day. WhatsApp technical support available 24/5.

Related Products

• SZGH Arm-2442 — 4-Axis Cobot, 2 kg / 3 kg Max, 420 mm Reach, Drag Teaching ✓ — Mid-range Arm series model with drag teaching and collision detection. Best choice if hand-guided programming or operator-safe shared workspace operation is required.

• SZGH Arm-1832 — Entry-Level 4-Axis Cobot, 0.5 kg, 320 mm Reach — Lightest and most compact Arm series model. Supports drag teaching and collision detection. Suited for education, light lab work, and lowest-cost automation entry.

• SZGH S600-B-4 — High-Speed SCARA Robot — Maximum horizontal cycle speed for dedicated high-volume pick-and-place, assembly, and dispensing lines.

• SZGH T9905 — Six-Axis Precision Robot — Six degrees of freedom for complex spatial paths, welding, polishing, and multi-angle assembly tasks where four axes are insufficient.