Optimizing Injection Molding Productivity Through Space-Efficient Kinematic Designs
In modern high-speed plastic injection molding, floor space optimization, ceiling clearance, and ultra-fast removal cycle times dictate operational profitability. The Small Back-Slant Manipulator represents a breakthrough in structural robotics design, specifically created to overcome low-overhead constraints in cleanrooms and compact manufacturing floors while delivering high-speed part extraction.
Engineered with a backward-tilted (back-slant) dynamic axis configuration, this manipulator redirects the vertical stroke force along a angled mechanical vector (typically 15° to 45° tilt). This structural modification significantly decreases overall vertical machine height without sacrificing extraction stroke length. As a result, Tier-1 manufacturers, plastic molders, and OEM systems integrators can install high-speed servo automation under restricted workshop ceilings.
Reduces overhead vertical clearance by up to 35% compared to conventional vertical robots. Eliminates factory ceiling modifications and lowers cleanroom HVAC volume demands.
Constructed with high-rigidity extruded aluminum-magnesium alloys and powered by absolute AC servo motors, enabling dry cycle times under 0.6 seconds.
The slanted center-of-gravity shifts payload weight toward the main machine frame, reducing mechanical vibration and extending linear guide rail lifespan by 40%.
In today's rapidly developing industrial automation field, Zhejiang Zhiyi Intelligent Robot Co., Ltd. has become a leader in the industry with its outstanding technical strength and innovative spirit. Since its establishment in 2017, the company has always been committed to providing global customers with high-quality automation equipment and customized ODM/OEM solutions to promote the intelligent transformation of the manufacturing industry.
Leveraging deep engineering insight into injection molding dynamics, Zhiyi integrates mechanical design, advanced sensor arrays, custom control algorithms, and edge-AI connectivity to manufacture world-class servo manipulators, articulated robots, and automated packaging systems.
A continuous path of innovation from specialized truss manipulators to intelligent multi-axis robotics
The establishment of Zhejiang Zhiyi Intelligent Robot Co., Ltd. stems from the founder's deep insight into the intelligent manufacturing industry and an unremitting pursuit of technological innovation. Against the backdrop of Industry 4.0, the company came into being to elevate production efficiency and product quality across injection molding and manufacturing sectors.
In the early days of the company, R&D focused intensely on specialized truss manipulators. Utilizing advanced team technical strength, Zhiyi rapidly made breakthroughs in automated production for thermos cups, lunch boxes, and food-grade containers, winning widespread market acclaim.
With maturing tech capabilities, Zhiyi expanded into multi-axis articulated robots, small back-slant manipulators, and high-speed automatic packaging lines. Applications broadened from home goods to precision electronics, kitchenware, daily chemicals, and automotive components.
Earning the honorary title of "National High-tech Enterprise", Zhiyi actively expanded into Southeast Asia and international markets along the "Belt and Road" initiative, establishing local customer service centers and engineering support nodes.
Why global OEMs source high-precision automation directly from Zhejiang Zhiyi
Located in Zhejiang's advanced manufacturing cluster, Zhiyi leverages immediate access to high-precision CNC machining, specialized servo drive fabrication, and raw alloy sourcing, dramatically lowering lead times.
Through standardized modular designs, highly automated internal production lines, and lean operations, Zhiyi reduces total procurement costs by up to 30% without sacrificing component quality.
With an annual manufacturing capacity exceeding 2,500 robotic manipulators, Zhiyi handles both bulk enterprise rollouts and specialized low-volume ODM customizations with fast turnarounds.
Custom-engineered automation hardware for injection molding machines from 50T to 2300T
The servo manipulator is one of Zhiyi's core product lines. Featuring high precision, efficiency, and exceptional dynamic stability, it is widely utilized across automated injection molding lines globally. Engineered in single-axis, 3-axis, and 5-axis full-servo configurations.
Designed with multiple degrees of freedom (DOF) for complex, non-linear trajectories. Zhiyi has invested heavy engineering resources into articulated robotics, achieving market-leading performance in payload capacity, trajectory repeatability, and path speed.
A strategic growth domain for Zhiyi. By linking injection molding takeoff manipulators directly with downstream packaging units, these automated systems eliminate human contact, ensuring total product hygiene and boosting packing output.
| Model Series | Kinematic Type | Target IMM Clamping Force | Payload Range | Drive System |
|---|---|---|---|---|
| WKG-1000 Series | 3-Axis / 5-Axis Single Arm | 100T – 350T IMM | 3 kg – 5 kg | Absolute AC Servo Motors |
| WKFI-950 Series | 5-Axis Dual Arm Double Section | 150T – 450T IMM | 5 kg – 8 kg | High-Torque Servo + Linear Rails |
| Bullhead WKG-1500 | Bullhead Heavy-Duty Structural Arm | 450T – 1000T IMM | 10 kg – 25 kg | Heavy-Duty Planetary Gear Servo |
| Large Tonnage OEM | 3-Axis Heavy Servo Manipulator | 2000T – 2300T IMM | 30 kg – 50 kg | Dual Structural Beam + Servo Drive |
Deploying specialized ODM robotic arms tailored to rigorous sector standards
Handles insert molding for connectors, sensor housings, and interior trim pieces. Ensures exact registration tolerances (±0.02mm) during metal insert placement prior to injection.
ISO Class 7 and Class 8 cleanroom-ready back-slant manipulators with particulate-free pneumatic greases, stainless steel hardware, and enclosed cable tracks for syringes and petri dishes.
Rapid removal of phone cases, display frames, and optical lenses. Integrates vacuum sensor verification to guarantee 100% part removal without optical surface scratching.
Next-generation R&D focused on Edge AI, Vision Integration, and Sustainable Energy Recovery
Embedding neural networks and 3D vision cameras directly onto the small back-slant arm. Enables automated flash detection, short-shot identification, and adaptive part sorting directly inside the mold cavity zone.
Transitioning vertical kicker tubes to woven carbon-fiber composites. Reduces moving mass by 28%, enabling accelerations up to 10G while completely dampening end-of-stroke vibration.
Integrating regenerative servo drives that capture braking kinetic energy during rapid downward strokes, feeding power back to the factory grid and lowering total electrical consumption by 18%.




Tailored engineering, certified quality, and worldwide technical assistance
Zhiyi offers tailored welding and inlay upgrade packages supported by live video demonstrations and training programs in a state-of-the-art factory environment prior to delivery.
Professional multi-lingual engineering teams provide 24/7 pre-sales consultation, remote diagnostic support, and rapid-response spare parts dispatch to guarantee continuous production uptime.
Every manipulator manufactured undergoes rigorous endurance testing, electro-magnetic compatibility (EMC) evaluation, and payload laser calibration before receiving export dispatch authorization.








Technical insights into selecting, integrating, and maintaining Small Back-Slant Manipulators