Explore our top-tier robotic extraction systems engineered for plastic injection molding machines ranging from 50T to 3200T. High rigidity, sub-millimeter repeat accuracy, and optimized cycle times.
Transforming Plastic Injection Molding Operations Through High-Speed, Sub-Millimeter Servo Robotics & Intelligent Factory Integration.
The global plastics processing industry faces unprecedented operational challenges: escalating labor expenditures, acute shortages of skilled machine operators, increasingly stringent micro-tolerance requirements, and intense pressure to compress production cycle times. Modern plastics manufacturers operating injection molding machines (IMMs) can no longer rely on manual part extraction or basic pneumatic pick-and-place mechanisms.
As smart manufacturing becomes the operational standard under Industry 4.0 frameworks, high-speed multi-axis servo manipulators—often referenced within the industrial sector as Harmo-style high-precision robots—have transitioned from luxury upgrades to mission-critical infrastructure. These robotic systems guarantee consistent dry cycle performance, protect high-cost molds from collision damage via instant force-feedback, and streamline secondary post-molding processes such as auto-degating, in-mold labeling (IML), and automated insertion.
As a global hub for industrial machinery manufacturing, China has unified component supply chains, precision CNC machining clusters, and advanced robotics R&D talent. Factories like Zhejiang Zhiyi Intelligent Robot Co., Ltd. represent the apex of this evolution, offering industrial partners worldwide access to heavy-duty, high-precision servo robotic arms at an unmatched performance-to-cost ratio.
By blending top-tier Japanese AC servo drives (such as Yaskawa and Panasonic), ultra-rigid linear guide rails (THK / Hiwin), and proprietary control algorithms, China Harmo-compatible robot manufacturers deliver hardware that matches European and Japanese performance standards while offering up to 35% lower capital expenditure and drastically shorter delivery lead times.
Inside the Engineering Innovations: High-Torque AC Servo Motors, Vibration-Dampening Structural Frames, and Low-Latency Industrial Fieldbus Communications.
Our heavy-load Bullhead 3-axis and 5-axis servo robots utilize lightweight, high-tensile aviation aluminum profiles combined with high-rigidity structural steel crossbeams. This optimized design minimizes dynamic inertia during high-acceleration take-out cycles, eliminating beam deflection and structural vibration even when handling heavy multi-cavity parts and complex End-Of-Arm Tooling (EOAT).
Driven by absolute-encoder AC servo motors on all linear and rotational axes (X, Y, Z, plus C-axis/B-axis wrist rotations), our robots execute smooth, S-curve acceleration profile trajectories. The system maintains absolute positioning accuracy down to ±0.01mm, ensuring flawless insert positioning for micro-electronics and defect-free extraction of delicate optical lenses.
Fully compliant with Euromap 67 and Euromap 12 standardization interfaces, the controller features active collision monitoring and instant torque detection. In the event of an unexpected part drop or foreign object obstruction within the mold envelope, movement halts in under 10 milliseconds, preventing catastrophic mold core damage.
| Model Series | Applicable IMM Tonnage | Axis Architecture | Max Payload (kg) | Dry Cycle Time (s) | Position Repeatability |
|---|---|---|---|---|---|
| WKG-1000 Series | 150T – 350T | 3-Axis Single Arm / Double Section | 3.0 – 5.0 kg | ≤ 0.8 s | ± 0.01 mm |
| WKFI-950 Series | 250T – 500T | 5-Axis Dual Arm / Double Section | 5.0 – 8.0 kg | ≤ 0.95 s | ± 0.02 mm |
| WKG-1500 Bullhead | 500T – 1200T | 3-Axis Heavy Bullhead Servo | 10.0 – 15.0 kg | ≤ 1.4 s | ± 0.03 mm |
| Zhiyi Heavy-Duty Series | 2000T – 2300T | 3-Axis / 5-Axis Extended Reach Servo | 25.0 – 50.0 kg | ≤ 2.2 s | ± 0.05 mm |
A Pioneering Force in Industrial Automation, High-Precision Servo Manipulators, and Smart Manufacturing Ecosystems.
Founded in 2017 in Zhejiang, China, Zhejiang Zhiyi Intelligent Robot Co., Ltd. was established with a singular vision: to accelerate the intelligent transformation of the global manufacturing industry through cutting-edge robotic automation systems.
Spanning state-of-the-art engineering laboratories and modern assembly facilities, Zhiyi has grown from a specialized manufacturer of truss manipulators into an internationally recognized National High-Tech Enterprise. Today, our engineering expertise spans high-speed servo manipulators, multi-axis articulated robots, customized in-mold insertion systems, and integrated automatic packaging solutions.
Our commitment to rigorous quality control standards, continuous research and development, and customer-centric service has earned us the trust of over 500 major industrial manufacturing clients globally across Southeast Asia, Europe, South America, and the Middle East.
Zhejiang Zhiyi Intelligent Robot Co., Ltd. was established during the crest of the Industry 4.0 wave. Focusing initially on custom truss manipulators for daily consumer hardware (such as stainless steel thermos cups and food container molding lines), the founding engineering team rapidly built a reputation for bulletproof reliability.
Leveraging proprietary servo control software, Zhiyi expanded into 3-axis and 5-axis dual-arm high-speed robots (WKG and WKFI series) for injection molding machines, expanding target markets into auto parts, kitchenware, and precision electronics.
Awarded the official "National High-Tech Enterprise" designation in recognition of our expanding portfolio of utility patents, mechanical design breakthroughs, and real-time control system inventions.
Establishing overseas customer support hubs under the "Belt and Road" initiative. Integration of AI vision systems, digital twin simulation tools, and cloud telemetry for global OEM industrial clients.
Delivering Customized Robotic End-of-Arm Tooling (EOAT) and Turnkey Automation Lines for Diverse Manufacturing Sectors.
High-tonnage (1000T-2300T IMM) extraction of bumpers, instrument panels, and interior trim components. Integrated with automatic sprue cutting, ultrasonic welding, and hot-stamping secondary units.
Ultra-clean 3-axis servo extraction of medical syringes, petri dishes, and micro-fluidic cassettes. Fully enclosed grease-free linear rails and anti-static pneumatic grippers compliant with ISO Class 7 cleanrooms.
High-precision extraction and insert placement for phone housings, connectors, and optical lens arrays. Vacuum-monitoring EOAT ensures zero micro-scratching or stress marks during high-speed take-out.
Zhiyi’s legacy domain: rapid take-out and automatic line transfer of lunch boxes, double-wall stainless thermos cup insulations, and cosmetic container closures with automated stacking and bagging.
Why Global Injection Molders Partner Directly with Chinese OEM Exporters for Unmatched Supply Chain Agility.
Situated within the Yangtze River Delta manufacturing cluster, Zhejiang Zhiyi leverages local access to precision raw materials, CNC machining facilities, heat treatment units, and electronic component ecosystems. This concentration reduces sub-assembly lead times from months to days.
Every plastic manufacturing line features unique mold dimensions, daylight clearances, and crane ceiling limits. Our in-house engineering team provides rapid 3D CAD simulation, custom stroke length modifications, and bespoke EOAT design within 72 hours of project intake.
Every single robot undergoes a minimum of 72 hours of continuous full-load dry running test cycles prior to dispatch. Rigorous Laser Interferometer calibration guarantees axis straightness, orthogonality, and repeatability before international shipping packaging.
Pioneering Next-Generation Cognitive Automation, AI Vision, Digital Twins, and Energy-Efficient Servo Kinetic Systems.
Future iterations of the Zhiyi/Harmo series are actively integrating neural-network-powered 3D vision systems. This allows robotic manipulators to dynamically adjust pickup vectors for randomly oriented inserts or inspect molded parts for surface flash, short shots, and color irregularities in real time during the take-out stroke.
Our R&D department is embedding Digital Twin software environments that enable factory managers to simulate full cell throughput and prevent mechanical clashes virtually before deploying real hardware. Additionally, kinetic energy recovery systems (KERS) are being introduced to capture braking energy, lowering robotic electrical consumption by up to 22%.
Quantifiable engineering excellence backed by global deployment scale and protected intellectual property.
We deliver tailored automated inline metal insert placing, ultrasonic welding, and post-extraction trimming cells supported by live factory FAT (Factory Acceptance Testing) video verification and hands-on training programs.
All exported robot systems carry official CE safety mark compliance and ISO 9001 quality management certifications, backed by standard 12-month warranties and lifetime spare parts availability.
Ensuring Continuous Uptime, Safety Standardization, and Rapid Technical Assistance for Overseas Operation Networks.
Our dedicated multilingual engineering support desk provides round-the-clock remote diagnostic assistance. Through cloud telemetry modules, our field engineers can remotely diagnose alarm logs, optimize servo parameters, and upload custom PLC routines.
To support growing installation bases across Southeast Asia, South America, and Eastern Europe, Zhejiang Zhiyi has established local spare part repositories and certified technician teams for rapid on-site installation, commissioning, and preventive maintenance.
Every Harmo-compatible servo robot system exported by Zhiyi fully adheres to international mechanical safety norms, including EN ISO 10218-1 for industrial robots, CE Low Voltage Directive 2014/35/EU, and Electromagnetic Compatibility Directive 2014/30/EU.
Comprehensive Engineering Clarifications for Plant Managers, Technical Buyers, and Systems Integrators.
Select from our extensive range of standard and customized 3-axis and 5-axis servo robot solutions designed for high-efficiency plastic processing automation.
ZHIYI Robotics