Choose a multi-material machine for two or more colours or materials combined in a single molding cycle, with servo-driven rotary platen precision and modular injection configurations.
A multi-material injection molding machine produces parts with two or more colours or materials in a single molding cycle.
Also known as double shot, two-shot, or 2K molding, this process uses a servo-driven rotary platen to transfer the first-shot part to a second cavity, where a second injection unit adds the next material and the two bond during molding. This replaces separate molding, assembly, and bonding with a single step, lowering per-part cost and improving bond strength and finish.
Because even small misalignment between shots causes colour bleed or weak bond lines, rotary platen positioning accuracy directly determines part quality. Multi-material sits alongside Chen Hsong’s full injection molding machine range of hydraulic toggle, two-platen, all-electric, hybrid, vertical, and high-speed packaging machines.
Every Chen Hsong machine is ready for smart manufacturing through the iChen™ platform. iChen™ Smart Factory connects machines, automation, and production systems into a complete MES solution. iChen™ Cloud provides real-time monitoring, quality tracking, and data-driven operations across your entire fleet. iChen™ AI Molder applies AI-driven process intelligence to optimize molding parameters, reduce defects, and stabilize output, without relying on operator experience alone.
As a global injection molding machine supplier with 120+ service locations, Chen Hsong supports manufacturers in automotive, packaging, electronics, medical, home appliance, and industrial production with machines, automation, and smart factory solutions.
Chen Hsong has built multi-material machines since 1997, when it introduced the industry’s first servo-driven rotary platen system, and is now in its third generation across two lines.
The DM III line places main and auxiliary injection units in a parallel, dedicated arrangement: the toggle DM III (168–568T) carries 4 patented rotary platen technologies and ±0.2% injection accuracy, and the SM-TP-DM III Two-Platen (750–1900T) carries an ABB servo rotary platen accurate to 0.005° with rotary table load capacity up to 16 tonnes.
The DMZ III line (168–750T) is a back-loading modular system in which the auxiliary unit stacks on the main unit, available in three-platen (168–468T) and two-platen (550–750T) configurations, with an independent servo-driven rotary platen (±0.005°) and standard e-Drive™ electric melt. Both lines support three or more materials on multi-station turntables.
Typical applications include automotive headlights and tail lights, appliance panels, power tool grips, toothbrushes, eyewear, and cosmetics packaging.
The DM III line is Chen Hsong’s dedicated multi-material platform with main and auxiliary injection units in a parallel arrangement. It comprises the toggle DM III from 168 to 568 tonnes, with 4 patented rotary platen technologies, a dedicated multi-material controller, and ±0.2% injection accuracy, and the SM-TP-DM III Two-Platen from 750 to 1900 tonnes, with an ABB servo rotary platen accurate to 0.005° and rotary table load up to 16 tonnes.
The DMZ III line is the back-loading modular system in which the auxiliary injection unit stacks on the main unit to share one frame and guide mechanism, available in three-platen (168–468T) and two-platen (550–750T) configurations, with an independent servo-driven rotary platen (±0.005°) and standard e-Drive™ electric melt.
Choose by part size first, then layout: below 468 tonnes, pick between the dedicated DM III and the compact, energy-saving JM-DMZ III; from 550 to 750 tonnes the SM-NTP-DMZ III covers the range; above 750 tonnes the SM-TP-DM III covers it. All four machines switch between single-colour and multi-colour production.
The two materials must be compatible in both adhesion and processing temperature. The most common combinations are hard plastic with soft rubber (PP + TPE, ABS + TPE, PC + TPE) for grip and sealing applications, and same-base-resin colour combinations (PP + PP in different colours, ABS + ABS) for aesthetic parts.
Other proven combinations include PC + ABS, PA + TPE, and PBT + TPE. Chen Hsong’s modular injection system allows independent temperature, pressure, and speed control per injection unit, so materials with different processing windows can be handled on the same machine. For unusual material combinations, our application engineers can advise on compatibility and mold design.
Yes. Both the DM III and DMZ III support three-station and four-station turntable configurations for three or more materials in a single cycle.
The modular injection system allows multiple auxiliary injection units to be added in various positions around the machine. Three-colour and four-colour parts are produced in automotive, appliance, and consumer goods applications.
Multi-station turntable control requires higher positional precision, which is why Chen Hsong’s servo-driven rotary platens, positioned to ±0.005° on the DMZ III and the SM-TP-DM III, are critical for consistent multi-station production.
Chen Hsong supports customers through more than 120 service points, with a professional after-sales team of over 200 specialists, serving 85+ countries. Multi-material machines are supported by dedicated specialist teams with expertise in rotary platen systems and multi-component process optimisation.
Standard after-sales coverage includes installation, commissioning, operator training, preventive maintenance, spare parts supply, and remote diagnostics through the iChen™ platform.
Service contracts and extended warranty options are available. For customers in China, the 24-hour “服务易” hotline (400-930-0026) provides round-the-clock response.
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