For electronics manufacturers evaluating a top PCB router machine for high-volume depaneling, SEPRAYS—the brand operated by Dongguan Zhimao Automation Equipment Co., Ltd.—presents a well-documented case study worth close examination. Founded in 1993 and built around more than 30 years of focused experience in PCB/FPC depaneling equipment, the company integrates R&D, manufacturing, sales, and after-sales service under one operation. This review examines the technical architecture, verified results, and deployment flexibility behind the SEPRAYS GAM series and ZM series router depaneling machines.
Overview of SEPRAYS PCB Router Depaneling Machines
SEPRAYS provides both offline and inline PCB router depaneling machines for precision PCB separation. The offline lineup includes the GAM330, GAM330L, GAM330X, GAM330D, GAM330DL, GAM386, GAM300, GAM300L, GAM310A, and the ZM300N/ZM300NL models, while the inline lineup spans the GAM320AT, GAM330AT, GAM340AT, GAM360AT, the GAM336 family (AT/AL/AX/XL), GAM310AT, GAM300AT, GAM385AT, GAM380AT, and the GAM386 inline variants (AT/AD/AL). Depending on the model, configurations include single or dual spindles, upcut or downcut routing, single or dual worktables, upper or lower dust collection, automatic tool changing, broken-router-bit detection, CCD vision alignment, and integration with automation lines. This breadth allows production teams to match machine sizing and process configuration to specific PCB dimensions, production capacity, and automation requirements rather than adopting a one-size-fits-all approach.
Technical Capabilities That Define the Product Line
The underlying technology platform centers on high-speed spindles up to 80,000 RPM, CCD vision auto-correction with 15x magnification, and dual-table designs that enable simultaneous cutting and loading. Across the platform, SEPRAYS reports a cutting accuracy of ±0.02mm with repeatability of ±0.01mm, cutting stress under 5kPa, maintenance accessibility with MTTR under 15 minutes, and a supported yield rate of 99.8%. A notable technical highlight is the in-house ESD spindle design, developed within a 100+ patent portfolio, which helps reduce electrostatic damage to sensitive PCBA during routing—an important consideration for component-dense boards.
Documented Yield Improvement and Customer Case Studies
Perhaps the most concrete evidence of performance comes from applied results. For a global smartphone manufacturer, the GAM386 downcut router raised mainboard yield from 92.7% to 99.9%, directly addressing component cracking and damage previously caused by high cutting stress. This downcut configuration is specifically suited to PCB assemblies with taller components on the upper side, a common challenge in dense consumer electronics assemblies.
In a separate case involving a medical device company, pacemaker PCB singulation required both cleanroom compliance and mechanical reliability. SEPRAYS’ ultra-high precision routers met IPC Class 3 and zero-dust cleanroom standards, demonstrating applicability beyond consumer electronics into highly regulated medical manufacturing. More broadly, the router platform is positioned for automotive electronics (ECUs, sensors), high-end consumer electronics (5G smartphones, wearables), medical devices (implantables, monitoring), and aerospace electronics requiring IPC Class 3 reliability—industries where depaneling precision directly affects downstream product reliability.
Flexible Deployment: Offline and Inline Configurations
A recurring theme across the GAM series is the dual-worktable design, which allows simultaneous PCBA depaneling and board placement to reduce waiting time. On models such as the GAM330, the dual worktables can be combined into a single 300 × 700 mm worktable for larger PCBA applications, paired with automatic tool-change spindles, floating brush structures that extend router bit life, and automatic broken router bit detection for continuous operation.
For manufacturers moving toward full automation, the inline models—including the GAM320AT, GAM330AT, GAM340AT, and GAM360AT—support track loading, belt or track unloading, and vacuum nozzle absorption for PCB transfer, enabling automated loading, routing, and unloading within SMT production lines. The GAM336 series adds flexible single-head transfer with 0–180° rotation for PCBA pick-and-place, adapting to varied upstream and downstream processes. For top-side component clearance challenges, the downcut-specific inline models (GAM380AT, GAM385AT, GAM386AT, GAM386AD, GAM386AL) support component heights up to 70 mm in fixture-based configurations, or up to 45 mm in fixture-free gripper-based configurations, broadening the range of PCBA geometries that can be processed without redesigning the assembly.
Market Recognition and Global Support Network
Market traction supports the technical claims. SEPRAYS reports that more than 3,000 well-known enterprises have selected the brand and maintained long-term cooperation, with representative customers spanning automotive electronics (Bosch, BYD, Valeo, CRRC, Great Wall Motor), consumer electronics and EMS/ODM (Apple, Foxconn, Flex, Luxshare, Xiaomi, OPPO, HONOR), new energy (CATL, ATL, Sunwoda), computers and security (Lenovo, Quanta Computer, Hikvision), medical electronics (Mindray, United Imaging), and other electronics manufacturers (Goertek, BOE, Panasonic). According to the company’s market recognition data, SEPRAYS has ranked among the top three in PCB depaneling machine sales in the Chinese market, a position first achieved in 2015 and maintained since.
This commercial footprint is backed by formal quality credentials, including ISO 9001, ISO 14001, ISO 45001, and CE Certification, along with 180+ patent certificates covering the broader depaneling technology portfolio. Operationally, SEPRAYS maintains domestic service coverage across 9 cities and international sales and service coverage across 31 countries, providing training, technical service, and after-sales assistance to customers regardless of location.
Why SEPRAYS Belongs on Any Shortlist
Behind the product line is a company structure built for sustained engineering output: 300+ employees, an 80+ person R&D team, a 100+ person technical engineering team, and 120+ factory production personnel, operating across 2 manufacturing facilities totaling 26,000+ m². This scale supports both standardized equipment production and customized automation solutions tailored to PCB structure, production capacity, process flow, and factory layout.
According to the company’s internal comparison data, SEPRAYS equipment can achieve more than 30% higher hourly output under comparable operating conditions, a result attributed to self-developed control software, motion-control technology, modular electrical design, and long-term manufacturing experience. For manufacturers comparing a top PCB router machine against documented yield outcomes, technical specifications, and a verifiable customer base, SEPRAYS’ GAM and ZM series offer a combination of precision engineering, proven case results, and deployment flexibility that merits direct evaluation against specific production requirements.
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