We are an integrated engineering plastic service team specializing in smart manufacturing and acoustics. With over 20 years of deep-rooted expertise in the industry, we deliver one-stop solutions spanning R&D, design, production, and final delivery.
Supported by a professional design team, ZEH delivers end-to-end service support for plastic products—covering everything from initial design to final delivery. In the pre-production phase, we offer free drawing revisions and 3D prototyping to help you quickly validate design concepts, ensuring your ideas are translated into tangible results with precision. Leveraging our industry expertise, we also optimize product design structures to mitigate production risks at the source, guaranteeing smooth and accurate manufacturing of plastic molds and components.
Upon entering mass production, we strictly select safe and compliant plastic materials that balance product performance and usability. We then provide full-process oversight of plastic housing molding and surface treatment, maintaining rigorous quality control over every detail. Finally, we complete standardized packaging and shipping, eliminating the need for you to coordinate multiple parties. This allows for a hassle-free and efficient product launch experience.
We boast a team of senior technical and structural engineers, skilled in developing and designing plastic and metal molds, as well as delivering tailored solutions. Our core offerings encompass precision molds, injection molds, and injection-molded plastic products. We provide full-process supporting services—including injection molding, spray painting, silk screening, pad printing, electroplating, and finished product assembly—to streamline our clients’ supply chains. Equipped with advanced equipment such as imported CNC machining centers, EDM machines, mirror EDM machines, and laser cutting machines, we guarantee the precision of both molds and products, enabling clients to cut costs and enhance product efficiency.
ZEHSMAUDIO can adapt an existing speaker platform or develop a modified structure based on your installation space, sound target, electronics, enclosure and production requirements.
We review your housing dimensions and mounting structure before selecting the frame and magnetic circuit.
Round, oval, rectangular and low-profile frames can be adapted to internal ribs, PCB positions and assembly methods.
Speaker parameters are evaluated together with the amplifier, enclosure, listening distance and required sound performance.
Diaphragm, surround and magnet materials are selected according to the target sound, environment and cost requirements.
The project can include the enclosure, grille, wiring, connector, sealing components and amplifier matching.
Different products place different demands on speaker size, vocal clarity, sound pressure, enclosure volume, power consumption and long-term reliability. Select an application to see how the acoustic priorities change.
For smart terminals and voice-enabled products, the speaker must reproduce speech clearly inside a compact enclosure while working together with the microphone, audio PCBA and product housing.
Low-profile structure, vocal-band tuning, cavity matching and complete audio hardware coordination.
Interactive toys and learning products need clear speech, comfortable loudness and a structure that remains consistent across repeated use and mass production.
Shape customization, controlled sound pressure and voice-frequency optimization for educational content.
Voice prompts and alarms must remain understandable and stable, while the speaker or module also fits the assembly, supply and reliability requirements of the medical device.
Integrated modules, stable acoustic output, controlled materials and documented validation before production.
Doorbells, panels, sensors and connected terminals often require a small speaker that delivers clear prompts or alerts without taking valuable space from the rest of the electronics.
Compact structures, alert-tone tuning, optional environmental protection and connector integration.
Trackers, training products and portable electronics need compact sound components that survive movement, limited battery capacity and repeated everyday handling.
Small-footprint drivers, efficient notification output and optional sealing or integrated module assembly.
We specialize in premium customization of plastic components across all sectors. During structural refinement, we integrate electromagnetic shielding or circuit board design to ward off signal interference, while perfectly accommodating the installation requirements of precision electronic parts.
Our dimensional precision is calibrated to micron-level standards, ensuring seamless alignment between plastic enclosures, circuit boards, and interfaces. This eliminates any risk of loosening, enabling your products to operate safely and launch successfully in the market.
1. Dimensions: To protect the customer’s technical privacy, a Non-Disclosure Agreement (NDA) can be signed. Subsequently, the internal structural dimension drawings (such as component installation position dimensions and avoidance space design) will be repeatedly optimized based on the customer’s needs until the customer confirms there are no dimensional issues or interference risks, and then 3D sample service will be provided. Only after the 3D sample is confirmed can official mold production proceed.
2. Space Optimization: Reasonably plan the installation areas for various components based on the battery weight (to avoid center of gravity shift), the speaker’s acoustic requirements (to reserve sound emission space), and the circuit board’s interface position (to facilitate external wiring). At the same time, reserve sufficient assembly clearances (e.g., 0.2-0.5mm) between components and the inner wall of the enclosure, as well as between components. Additionally, avoid key parts such as circuit board solder joints and battery electrodes to prevent crushing or damage to components during installation and avoid interference between components.
3. Surface Treatment: Customize the LOGO presentation method (such as screen printing, laser engraving, or other processes; for metal enclosures, anodizing and coloring can be added) according to the customer’s brand positioning. Meanwhile, additional surface treatments can be supplemented (e.g., spray painting and frosting for plastic enclosures, sandblasting for metal enclosures, etc., made according to customer requirements) to balance appearance texture and service durability.
4. Safety Performance: Determine the enclosure’s protection level based on the usage environment, and then select materials accordingly. Examples of impact-resistant materials include ABS, PC, PE, PP, and aluminum alloy, which offer shock resistance, high-temperature resistance, and hard object impact resistance. These materials protect both internal components and external materials from the material perspective.
