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Address: 102, Building A4, No.8 Tongfu Road, Pingdong Community, Pingdi Street, Longgang District, Shenzhen, China.
In the "machines replacing labor" transformation of injection molding workshops, injection molding robots have evolved from optional accessories into standard equipment. Paired with injection molding machines, they perform finished part removal, sprue cutting, stacking, and conveying, directly determining the single-mold cycle time and the automation level of the molding workshop. According to public industry information, servo injection molding robots can compress single-mold part removal time to 1.5–2.5 seconds, shorten the overall molding cycle by 15%–30%, and raise production capacity by over 20%.
For a long time, the injection molding industry relied on manual part removal after mold opening. Workers had to repeatedly reach in beside high-temperature molds, facing safety hazards such as mold pinching and burns. Constrained by reaction speed and physical stamina, manual removal produces large cycle-time fluctuations, with efficiency declining notably during night shifts. In addition, manual contact with plastic parts easily leaves oil stains and fingerprints, while uneven force causes dents and deformation that drive up defect rates. As labor costs keep rising and recruitment becomes more difficult, automating the part removal process has become an urgent need for injection molding companies.
The working principle of injection molding robots is as follows: once the injection molding machine completes mold opening, it sends an interlock signal to the robot; the controller then drives the servo motors along a preset trajectory, guiding the arm through a complete sequence of descending, gripping inside the mold, ascending, traversing, placing, and sprue separation, with closed-loop positioning throughout, before automatically returning to the home position to await the next cycle. Three-axis servo models use independent X, Y, and Z axis drives, achieving repeatability of up to ±0.1 mm. Five-axis servo models add rotary axes on this basis, enabling part flipping, insert placement, and multi-posture removal, suiting complex processes such as deep-cavity parts, two-shot molds, and insert molding.
In terms of the product lineup, three-axis injection molding robots fit horizontal injection molding machines from 50 to 4,000 tons, handling routine part removal and simple stacking, and represent a widely adopted model; five-axis models target large parts and complex processes; gantry robots match the long-stroke, heavy-payload removal needs of large injection molding machines. An injection molding robot can operate continuously for 24 hours, strictly following the mold opening and closing cycle, and can be quickly commissioned with the injection molding machine through the Euromap standard interface, significantly shortening mold changeover and debugging time.
At the application level, injection molding robots already cover home appliance parts, automotive plastic components, electronic components, medical plastics, and packaging products. Beyond basic part removal, injection molding robots can also link with conveyors to connect injection molding with downstream processing on a continuous line, working alongside in-mold labeling, automatic sprue cutting, vision inspection, and tray arrangement and packing to form a complete automated molding cell. According to market research data, three-axis servo traverse robots accounted for nearly half of the global traverse robot market in 2025, reflecting the rigid demand for this equipment across the injection molding industry.
Today, injection molding production is evolving toward minimal-labor and flexible manufacturing, and injection molding robots are also integrating deeply with vision recognition, MES systems, and cloud monitoring to enable production data collection and fault early warning. For injection molding companies, injection molding robots are not merely part-removal tools that replace manual labor; they are core equipment that stabilizes quality, compresses cycle times, and supports the intelligent upgrade of production lines, and their configuration level has become an important indicator of an injection molding workshop's competitiveness.
Service Hotline：133-1084-8893
Complaints Tel：139-2945-0798
Company landline: 0755-84658192
Email：abcsz1777@126.com
Address: Longgang District, Shenzhen City,
Guangdong Province, Pengdi Street, Pingdong
Community, Tong Fu Road, No. 8 A4 Building 102
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