The ESTUN ER3-400-SR is a high-performance 4-axis SCARA (Selective Compliance Assembly Robot Arm) robot engineered for precision assembly, handling, and inspection tasks in demanding industrial environments. Designed with a compact footprint, a 400mm reach, and ±0.01mm repeatability, this robot excels in high-speed, high-accuracy applications common in electronics, automotive components, medical device manufacturing, and general automation. Its integrated servo control and hollow wrist design simplify cabling and enhance reliability.
Key Specifications
Model: ER3-400-SR
Type: 4-Axis SCARA Industrial Robot
Reach (Arm Length): 400 mm
Maximum Payload: 3 kg (includes end-effector weight)
Repeatability: ±0.01 mm
Maximum Speed: > 10,000 mm/s (linear), > 200°/s (rotational J3/J4)
Degrees of Freedom: 4 (X, Y, Z, Rz - Rotation around Z-axis)
Controller: ESTUN ERC3 Series (Integrated or Cabinet type)
Protection Class: IP54 (Standard, protects against dust and water splashes)
Installation: Bench Mounting
Weight: Approx. 25 kg
Communication Interfaces: EtherCAT, Ethernet, RS-485, Digital I/O (Standard), CANopen (Optional)
Design & Construction: Built for Rigor and Reliability
The ER3-400-SR boasts a robust cast aluminum alloy structure, minimizing vibration and ensuring long-term rigidity crucial for micron-level precision. Its hollow wrist design is a standout feature, allowing pneumatic lines, electrical cables, or vacuum hoses to pass cleanly through the arm's center. This eliminates external cable management issues, reduces wear and tear, prevents snagging, and significantly improves mean time between failures (MTBF). High-performance AC servo motors and precision harmonic drives in the first two axes provide the exceptional speed and positional accuracy the SCARA platform is renowned for. The Z-axis utilizes a precision ball screw for stable vertical motion.
Core Functions & Capabilities
High-Speed Precision Pick & Place: Ideal for placing small components onto PCBs, inserting connectors, or sorting parts.
Precision Assembly: Screw driving, press-fitting, snap-fitting, and intricate component assembly requiring sub-millimeter accuracy.
Automated Inspection & Testing: Vision-guided positioning for AOI (Automated Optical Inspection), functional testing probes, or sensor placement.
Material Handling: Loading/unloading small parts into machines (CNC, presses, injection molding), packaging, and kitting.
Dispensing & Sealing: Precise application of adhesives, sealants, lubricants, or solder paste.
Lab Automation: Sample handling, liquid transfer, and instrument interfacing.
Packaging & Deployment
The ER3-400-SR robot arm is typically shipped securely crated with robust foam protection. The standard package includes the robot arm and necessary mounting hardware. The ERC3 controller is shipped separately. ESTUN provides comprehensive installation manuals (physical and digital) and CAD models for seamless integration into workcells. Deployment is streamlined thanks to ESTUN's user-friendly programming environment (ESTUN ECS) and support for common fieldbus protocols.
Application Domains
This SCARA robot finds extensive use in industries demanding speed, precision, and compactness:
Electronics Manufacturing: PCB assembly, SMD component handling, connector/cable assembly, testing.
Automotive Components: Assembly of sensors, switches, pumps, small actuators; testing.
Medical Device Manufacturing: Assembly of syringes, inhalers, diagnostic devices; lab automation.
Consumer Goods: Assembly of small appliances, cosmetics packaging, toy assembly.
General Industry: Precision machining tending, small part packaging, quality control inspection stations.
Competitive Advantages
Exceptional Precision: ±0.01mm repeatability ensures consistent quality in micro-assembly.
Compact & Agile: Small footprint maximizes space utilization in dense production lines.
Hollow Wrist Design: Significantly reduces cable clutter, maintenance, and failure points.
High Speed: Optimized cycle times increase throughput and productivity.
Robust Construction: IP54 rating and durable materials ensure reliability in industrial settings.
Seamless Integration: EtherCAT support and ESTUN ECS software simplify connectivity and programming.
Cost-Effective Automation: Delivers high performance at a competitive TCO (Total Cost of Ownership).
Support & Service
ESTUN offers comprehensive global support, including:
Standard 1-year warranty (extendable options available).
Access to detailed technical documentation, manuals, and CAD models online.
Remote diagnostics and troubleshooting support.
Global network of trained technicians for on-site service and maintenance.
Training programs for operators and programmers.
Product Q&A: Answering Your Top Queries
Q1: What are the primary applications where the ESTUN ER3-400-SR SCARA robot excels?
A1: The ESTUN ER3-400-SR truly shines in applications demanding high speed combined with micron-level precision within a compact workspace. Its core strength lies in the electronics manufacturing sector, particularly for high-speed pick-and-place of miniature SMD components onto PCBs, precision insertion of connectors, and automated optical inspection (AOI) positioning. Beyond electronics, it's extensively used in the assembly of intricate automotive components like sensors and fuel injector parts, where repeatable accuracy is paramount. The hollow wrist design also makes it ideal for dispensing applications (adhesives, sealants, solder paste) and screw driving tasks in consumer goods assembly and medical device manufacturing, where keeping cables internal is critical for reliability and avoiding contamination.
A2: Furthermore, its agility and payload capacity make it suitable for machine tending tasks involving small CNC mills, lathes, or injection molding machines, efficiently loading/unloading small workpieces. In laboratory automation settings, the ER3-400-SR handles delicate tasks like sample tube manipulation, liquid handling pipetting, and interfacing with analytical instruments reliably. Its IP54 rating provides adequate protection against dust and splashes common in these industrial and cleanroom-adjacent environments, offering greater deployment flexibility than lower-rated robots. Essentially, any process requiring fast, precise, and repeatable motion for parts under 3kg within a 400mm diameter circle is an excellent candidate for this SCARA robot.
A3: Compared to larger SCARAs or 6-axis arms, the ER3-400-SR's key advantage is its optimization for tasks fitting its specific reach and payload. It offers a compelling blend of performance and value for high-volume, high-mix production of small components. Its ease of integration via EtherCAT and user-friendly programming lowers the barrier to automation adoption for these specific tasks. When space is at a premium and precision is non-negotiable – such as on crowded SMT lines or inside compact test stations – the ER3-400-SR is often the optimal automation solution.
Q2: How does the hollow wrist design of the ER3-400-SR benefit my automation cell?
A1: The hollow wrist design is a major engineering advantage of the ESTUN ER3-400-SR, directly addressing a common pain point in robotic automation: cable management. By providing a dedicated channel running vertically down the center of the robot's forearm and through the J4 (wrist rotation) axis, it allows all necessary utilities – pneumatic air lines for grippers, electrical cables for sensors or tooling, vacuum hoses for suction cups, or even small fluid lines for dispensing – to be routed internally. This eliminates the need for external cable carriers or dress packs that typically drape over the robot arm or run alongside it.
A2: The benefits are substantial. Firstly, it drastically reduces cable wear and tear caused by constant bending, twisting, and snagging against fixtures or other machinery. This directly translates to increased reliability, longer cable life, and significantly reduced downtime for maintenance and cable replacements (improved MTBF). Secondly, it enhances safety by removing potential snag hazards from the workspace. Thirdly, it improves the robot's performance consistency. External cables add mass and can cause slight variations in inertia during high-speed moves, potentially impacting path accuracy. Internal routing removes this variable. Finally, it results in a cleaner, more professional-looking workcell.
A3: This design is particularly crucial for applications requiring complex end-effectors or those operating in confined spaces where external cables would be impractical or prone to damage. It also simplifies the overall cell design process for integrators, as they don't need to engineer complex external cable management solutions. For end-users, it means lower long-term operating costs due to reduced maintenance and higher overall equipment effectiveness (OEE) stemming from fewer cable-related failures. It's a feature that significantly boosts the robot's operational robustness.
Q3: What controller and programming options are available for the ESTUN ER3-400-SR, and how easy is it to integrate?
A1: The ESTUN ER3-400-SR SCARA robot is powered by the ESTUN ERC3 series robot controller. This controller is available in two main form factors: a compact, integrated controller unit that can be mounted directly on the robot base (ideal for saving space) or a traditional cabinet-style controller for larger installations. The ERC3 controller is built on a powerful real-time industrial PC platform and utilizes the EtherCAT fieldbus as its core communication backbone, ensuring high-speed, deterministic control and excellent synchronization with other automation equipment like PLCs, vision systems, and I/O modules.
A2: Programming is primarily done using ESTUN's proprietary ECS (ESTUN Control System) software. ECS offers multiple programming methods to suit different user skillsets: A graphical, intuitive teach pendant interface allows operators to manually jog the robot, teach points, and build sequences easily. For more complex logic and advanced users, it supports textual programming languages similar to standard PLC languages (like structured text) and offers a rich set of motion control commands, I/O handling, and program flow control. Crucially, ECS also supports drag-and-drop block programming, making it accessible for users transitioning from PLC logic to robotics. Simulation and offline programming capabilities are also integrated.
A3: Integration into existing automation systems is streamlined. The standard EtherCAT interface allows direct, high-speed connection to many leading PLC brands (Siemens, Beckhoff, Rockwell Automation via gateways, etc.), enabling tight control coordination. Comprehensive digital I/O (Input/Output) is provided for basic tooling and sensor control. Additional communication options like RS-485 and Ethernet (TCP/IP) are standard, with CANopen often available as an option. ESTUN provides extensive documentation, CAD models, and sample code, facilitating mechanical and electrical integration. The combination of a powerful, flexible controller and industry-standard interfaces makes the ER3-400-SR relatively straightforward to integrate into diverse industrial environments.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a one-stop integrated service provider of intelligent manufacturing, belongs to the Gong Doctor Group, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1). Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3). At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
010-64225983
+8613811814778
info@zhongpingtech.com
Building 26, Liyuan Community, Chaoyang District, Beijing, China
