50
+
skilled tooling engineers and technicians in tooling factory
200
+
staff in molding and stamping plant
±0.002
mm
Tooling machining tolerance
7/24
h
DFM response time
Four Core Capabilities. One Accountable Partner.
in-process inspection at every shift. Because production sits beside the people who built the tool, process problems are corrected in hours.
● OEM&ODM Product Design (Electrical & Mechanical)
● Tooling Design & Manufacturing
● Highly skilled team in interconnectivity solutions
● Supply chain management
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Injection Molds, Stamping Dies , HCR+LSR Tooling developmentExport-standard tooling built in our Dongguan plant: single-cavity or multi-cavity injection molds with or without hot-runner system, overmolding and insert tooling for connectors and electronics industy, progressive stamping dies engineered for millions of strokes, and LSR/HCR silicone rubber mold for sealing parts. Every tooling ships with material certificates, 2D/3D drawing, spare-parts lists , qualified FAI report, and a tooling maintenance plan.
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Precision Injection Molding & Metal Progressive StampingOur Shenzhen plant turns validated tools into scheduled output: injection molding in ABS, PA,LCP, PBT,POM and engineering HCR/LSR molding, and high-speed Progressive stamping for shields, terminals and brackets. Programs scale from small batch trial run to mass production.
in-process inspection at every shift. Because production sits beside the people who built the tool, process problems are corrected in hours. -
High-Precision Machining & Program ManagementOur Tooling room is equipped with high precision machining and inspection machine from top brand. Such as Sodic CNC, Sodick EDM, Seibu WEDM. Hexagon CMM, Nikon Projector. Which can make sure our mold inserts and die components can achieve ±0.002 mm tolerance, High precision mold inserts and stamping punches are built to meet your drawings.
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OEM and ODM serviceFrom precision mold development to high-volume injection molding and metal stamping production, Protech delivers end-to-end OEM&ODM manufacturing solutions for the automotive electronics, medical device, aerospace, drone, and robotics industries. With in-house toolmaking, 35 FANUC injection molding machines, 17 precision stamping presses, and a dedicated automation assembly division, we manage your project from design through to finished product – all under one roof.
● OEM&ODM Product Design (Electrical & Mechanical)
● Tooling Design & Manufacturing
● Highly skilled team in interconnectivity solutions
● Supply chain management
Brand Profile
professional manufacturer of electric vehicle charging products and has been committed to providing the safest, most efficient, and most reliable electric vehicle charging solutions for families and businesses. We are committed to providing our customers with innovative products that represent the latest technology in electric vehicle charging and offering excellent customer service.ODM and OEM services are available. Through implementing a comprehensive dealer support plan, we are committed to helping customers achieve sales growth.
With every step, we are actively taking strides towards decreasing global impact on planet Earth for future generations. All members recognize the great responsibility they face when climate change threatens us all; however that doesn't stop anyone from being passionate about the electric vehicles industry or low-carbon lifestyle development! It's time to contribute so that global temperature rise can be controlled actively. That everyone has understood – let's move forward together for the betterment of our world!
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A purpose-built tooling center dedicated to the development of high-precision injection molds, progressive stamping dies, and LSR/HCR silicone rubber molds.
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Team of engineers and technicians, fully committed to mold development and ultra-precision mod part machining. Their expertise ensures fast problem-solving and reliable project execution.
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Our metrology and inspection capabilities guarantee micron-level accuracy for precision spare parts, backed by advanced CMM and optical measurement systems.
Our Shenzhen plant serves as the production engine for Protech, offering a complete manufacturing solution under one roof. We combine injection molding, metal stamping, and automated assembly with in‑house engineering and tooling support. Backed by 200+ dedicated staff and a lean management system, we deliver consistent quality, on‑time delivery, and end‑to‑end traceability.
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5,000 m² Production FacilityOur Shenzhen facility, staffed by 200+ skilled professionals, integrates injection molding, precision stamping, and automated assembly under one roof – delivering consistent quality at scale.
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50+ injection and stamping machine35 Fanuc/Haitian injection machines (30–300T) and 17 stamping presses (25–110T, including high‑speed Yamada Dobby) produce 50M+ plastic parts and 500M+ metal components every month.
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30+ Automated assembly linesCustom‑designed, in‑house built automated assembly lines turn out over 10M finished products monthly – from connectors and housings to fully assembled devices, with full process control.
Our Team Introduction
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Design & Development Team(15+Staffs)Our in-house design team combines product and mold engineering expertise. Product Design Engineers handling electrical/mechanical design, CAD modeling, and BOM development, Mold Design Engineers specialized in DFM, 3D/2D tooling design, mold flow analysis, defect prediction, and precision control .
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Project & Manufacturing Engineering Team(25+Staffs)This team bridges the gap between customer requirements and shop-floor execution. Project Engineers manage end-to-end program coordination, customer interface, and milestone tracking, while Manufacturing Engineers focus on process optimization, automation design, and production support. Together, they drive efficiency, quality, and on-time delivery across all stages.
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Precision Machining & Production Team(40+200 staffs）40+ Mold Machining Technicians operate precision equipment including EDM, wire EDM, CNC, grinding, and fitting, and conduct trial runs. 200+ skilled technicians and operators manage injection molding, stamping, and assembly operations, guaranteeing on-time delivery and consistent quality in high-volume production.
Our Approach
①Engineering Capabilities
Our engineering team provides comprehensive technical support throughout the product lifecycle:
- 1.Product Design – Electrical and mechanical design services, working from client specifications or reference designs. Our product design team specializes in connector and electromechanical assembly design, with expertise in signal integrity, contact design, and housing geometry optimization.
- 2.Mold Development – DFM (Design for Manufacturability) analysis, mold flow simulation, product defect analysis, and precision control. We deliver sample molds in 2–3 weeks and production molds in 4–6 weeks. Our DFM process identifies potential molding defects – including sink marks, weld lines, warpage, and short shots – before tool steel is cut, saving time and cost.
- 3.Automation Assembly Development – Custom design and build of automated assembly lines, integrating pick-and-place, testing, and packaging systems tailored to your product. Our automation team develops solutions for high-volume production with minimal manual intervention, ensuring consistent quality and reduced labor costs.
②Project Management – On Time, On Spec
We understand that OEM and ODM projects demand rigorous program management. Our dedicated project management team follows a structured development process from design review through to production launch. Every milestone – from tool design approval, steel cutting, first article inspection, to production ramp-up – is tracked and communicated with clear timelines. We ensure your project stays on schedule without compromising quality. Our project management framework includes:
- Phase 1: Feasibility & Design Review – DFM analysis, cost estimation, timeline development
- Phase 2: Tooling & Prototyping – Steel cutting, machining, sample molding, FAI reporting
- Phase 3: Production Validation – Process optimization, capability studies, PPAP submission
- Phase 4: Mass Production – Sustaining engineering, continuous improvement, supply chain management
Quality Assurance: Run Like an Inspection Sheet
Our quality system reads the way it operates: numbered controls, defined gates, recorded results. The discipline was built for automotive SQE audits — and every customer benefits, because a consumer housing travels the same gated process as a vehicle-harness connector.
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For Mold Development:
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For Precision Mold Components:
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For Injection Molding & Stamping Production:
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DFM review to identify and eliminate potential product defects before tool design In-process dimensional inspection during mold component machining First Article Inspection (FAI) with full dimensional reports after trial molding Iterative optimization until all product specifications are metn
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Incoming raw material inspection (steel certification and dimensional verification) In-process inspection at every machining step – EDM, wire EDM, grinding, and fitting Final outbound inspection with full dimensional measurement reports
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IQC (Incoming Quality Control) for all raw materials – resins, metal coils, and components In-process dimensional and visual inspections during production runs OQC (Outgoing Quality Control) with comprehensive inspection reports PPAP (Production Part Approval Process) / CPK analysis available for automotive-grade products Zero-defect policy – non-conforming products are never shipped to customers
Mold Development Capailities
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DFM — Design for Manufacturability
Every incoming part file gets a structured review: draft angles, wall sections, ribs and bosses, parting-line and gate proposals, plus concrete cost-down options such as cavity-count and steel-grade alternatives. You approve the report before any steel is ordered.
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Mold Flow Analysis
For geometry that warrants it, we simulate filling, packing and cooling before cutting: predicting sink and shrink, optimising runner and gate layouts, and controlling warpage on flat or thin-wall parts — so T1 confirms the simulation instead of starting the experiment.
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Precision & Tolerance Control
Cores, cavities and die components are machined to ±0.002 mm where the drawing demands it, with fits hand-checked at assembly. Molded and stamped parts hold ±0.01–0.02 mm on critical dimensions — confirmed dimension-by-dimension before we commit.
±0.002 MM COMPONENTS · GD&T LITERATE -
Material Engineering
Fifteen years across ABS, PC, PA, POM and engineering blends, LSR and HCR silicones, tool steels from P20 to 1.2344 ESR, and stamping alloys including stainless and phosphor bronze. Material choice is a joint engineering decision — never a quiet substitution.
PLASTICS · SILICONE · TOOL STEEL · METAL -
Rapid Prototyping & Validation
Prototype tooling and pilot runs bridge the gap between CAD and commitment: soft or simplified tools for design verification, small-batch trial production for assembly and field testing, and documented engineering validation before you authorise volume tooling spend.
T0 SAMPLES TYP. 4–6 WEEKS -
Engineering Team Support
One named project engineer owns your program end-to-end, backed by tooling designers and process technicians. Design reviews, open issues and trial reports arrive in clear written English — technical collaboration with a counterpart, not a ticket number.
1 PROJECT ENGINEER PER PROGRAM
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DFM
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Mold Flow Analysis
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Precision
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Material Engineering
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Rapid Prototyping
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Team Support
Quality, Run Like an Inspection Sheet
Our quality system reads the way it operates: numbered controls, defined gates, recorded results. The discipline was built for automotive SQE audits — and every customer benefits, because a consumer housing travels the same gated process as a vehicle-harness connector.
Materials are verified at receiving, processes are checked at defined in-line intervals across every shift, and finished lots clear outgoing inspection against the approved standard before packing. Nothing moves to the next stage on assumption.
Coordinate measuring machines, optical measurement and hardness testing turn tolerance claims into recorded numbers. Dimensional reports accompany tooling buy-offs and production lots, in formats your own quality team can drop straight into their files.
For automotive and other regulated programs we work to PPAP and APQP expectations: control plans, process flow diagrams, capability studies and submission documentation prepared to the level your customer's SQE will actually accept.
First-article approval fixes the standard; written SOPs and locked process parameters hold it. The part you approve in month one is the part you receive in month eighteen — the definition of large-order stability.
Raw-material buffers, agreed safety stock on recurring programs and dual sourcing of standard components mean a supplier hiccup upstream does not become a line-down event in your plant. Continuity is engineered, not hoped for.
Lot coding ties every shipment back to material, machine, operator and parameters. If an issue ever surfaces, an 8D report with verified root cause and corrective actions closes the loop — and the lesson is written into the SOP so it stays closed.
Quality Certifications & Compliance
At our company, quality is not just a department — it is the foundation of everything we do. we maintain a comprehensive portfolio of internationally recognized quality management certifications across our two manufacturing bases in Dongguan and Shenzhen, China.
Our Certification Portfolio
Dongguan Factory (Tooling Development Centor)
ISO 9001:2015 – Quality Management System
IATF 16949 – under qualification
Shenzhen Factory (Production Centor)
ISO 9001:2015 – Quality Management System
IATF 16949:2016 – Automotive Industry Quality Management System
ISO 14001:2015 – Environmental Management System
UL Certification – Product Safety Compliance (Available Upon Request)
Industries We Serve
What Our Customers Put in Writing
Four programs. Full project references are available to qualified buyers during supplier evaluation.
Mr. Schmidt
SOURCING MANAGER · STUTTGART, DE+
Automotive Connector Tooling — 500,000 PCS
As a Tier-2 supplier, our connector specifications leave no room for interpretation. Protech delivered a faultless custom mold, then ran half a million precision-molded parts without a single escaping defect. Their proactive reporting at every stage was the difference.
Mr. Chen
ENGINEERING DIRECTOR · SHENZHEN, CN
Miniature Plastic Gear Program
For miniaturised gears, precision is non-negotiable. Their mold held us inside ±0.01 mm consistently, and the molding quality eliminated post-processing entirely — cutting roughly fifteen percent from our assembly cost. A development partner, not a vendor.
Mr. Miller
OPERATIONS MANAGER · ILLINOIS, US
Progressive Stamping Die — EMI Shielding
Our shielding project needed a high-speed progressive die that would not blink. The tool has now cleared two million strokes with minimal wear — credit to steel selection and craftsmanship — with stamping production stable around it.
Ms. Johnson
QUALITY MANAGER · BOSTON, US
Medical Device Latch Component
We hold suppliers to medical-grade quality and immovable timelines. Protech's mold for a delicate latch component was right from the first T1 shot, and the 300,000-piece run shipped at full conformance. Professional from file to freight.
The Questions Every Buyer Asks First
How long does a custom injection mold take, from order to T1 samples?
Do you provide DFM and mold flow analysis before cutting steel?
What tolerances can you actually hold in production?
Who owns the mold — and can it be exported to my facility?
Start Your Project
Send a STEP File. Get Engineering Answers in 24 Hours.
- Free DFM review with cost-reduction options on every inquiry
- NDA signed first — before any of your files are opened by engineering
- Quotation includes tooling, part price tiers and a dated delivery plan
- Bilingual project engineer across EU and US working hours
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