FAQ

WEILAN MFG provides tooling, injection molding, OEM/contract manufacturing, assembly, testing, and production support. We can support projects from product development and DFM through tooling, production, assembly, and final delivery.

We support projects across consumer electronics, medical products, industrial equipment, automotive-related applications, and other engineered products. Project suitability is evaluated based on product structure, material, performance requirements, production volume, and application.

WEILAN MFG operates 111 injection molding machines ranging from 40T to 800T, including Sumitomo and Haitian equipment. Our tooling capabilities include CNC machining, 5-axis machining, and precision mold manufacturing, supported by dedicated engineering and quality teams.

We support component integration, assembly, functional testing, packaging, and final delivery. Depending on product complexity and volume, assembly processes can be manual, semi-automated, or automated.

Yes. Our engineering team can review 3D models, drawings, and other available product information before tooling or production begins. The review focuses on manufacturability, tooling risks, critical dimensions, potential quality issues, and production feasibility.

Our DFM review typically covers part geometry, wall thickness, draft angles, ribs and bosses, parting lines, undercuts, ejection, gating, cooling, material flow, tolerances, and potential molding risks. The goal is to identify manufacturability issues before tooling begins.

We complete project kickoff, technical review, tooling design, material planning, and production planning before manufacturing begins. For tooling projects, the mold design is reviewed for key elements such as parting lines, gating, ejection, cooling, and mold flow where required.

Mold cost, lead time, and service life depend on part geometry, mold complexity, material selection, tolerance and cosmetic requirements, production volume, and required mold life. We establish appropriate maintenance procedures based on the tooling and production requirements.

Cost depends on factors such as part geometry, material, dimensions, tolerances, surface requirements, tooling complexity, production volume, assembly requirements, and delivery targets. We evaluate these factors together to develop a project-specific quotation.

For projects with complete technical information, we generally target quotation within 48 hours. Urgent RFQs can be reviewed on a case-by-case basis.

Our production planning is based on available equipment, process requirements, current production load, and delivery requirements. Our production areas use a MES system to monitor production status and support production planning. For projects with defined delivery requirements, we evaluate capacity and provide a practical production plan.

The process typically includes requirement review, engineering evaluation, quotation, project approval, tooling or production planning, sampling, inspection, production, assembly or testing where required, and final delivery. Project progress is communicated at key milestones, with customers notified of significant design, quality, or schedule risks.

Quality control is integrated throughout the manufacturing process, from incoming material inspection through in-process and final inspection. Depending on project requirements, we use FAI, AQL-based sampling, dimensional inspection, and functional testing.

Our inspection capabilities include ZEISS CMMs, 2.5D optical measurement, CCD vision systems, and 3D scanning. Depending on project requirements, we can provide dimensional reports, FAI documentation, material records, test reports, and other required quality documentation.

Quality risks are addressed from the design and process-planning stages. During production, first-article inspection, in-process controls, process monitoring, and corrective actions are used to maintain process stability and reduce recurring defects.

Before mass production, key materials, tooling conditions, process parameters, inspection criteria, and approved samples are established. These approved conditions are then used as the basis for production control and inspection.

Yes. We can support customer-specific APQP and PPAP requirements with applicable documentation such as process flow diagrams, control plans, FMEA, dimensional results, material records, sample submissions, and capability studies where required.

WEILAN MFG operates a 2,000 m² ISO Class 7 cleanroom with continuous monitoring of temperature, humidity, and airborne particulates. The controlled environment supports precision molding and applications with specific cleanliness requirements.

Temperature, humidity, and airborne particulates are continuously monitored to maintain stable cleanroom conditions. Personnel, materials, and production processes follow controlled procedures designed to minimize contamination risks.

Before production, raw materials can be tested for melt flow and moisture content. During manufacturing, dimensional inspection is performed using CCD vision systems, CMMs, and 2D measurement equipment. Measurement systems are regularly validated and calibrated, with inspection records maintained for batch-level traceability.

Our medical injection molding operations follow controlled processes and quality practices aligned with ISO 13485 requirements. We operate 25 medical injection molding machines ranging from 40T to 180T, including high-precision Sumitomo and Zhafir systems, with robotic automation and custom fixtures to support consistent production.

Yes. Where required by the project, finished molded components can be packaged within the controlled cleanroom environment. This helps minimize exposure to airborne particles and other potential sources of contamination before final packaging.

Personnel follow defined gowning, entry, hygiene, and operating procedures before entering controlled areas. These procedures help maintain the required cleanroom conditions throughout production.

Yes. We can work from customer-provided SOPs, work instructions, drawings, inspection standards, and other production requirements. These requirements are translated into controlled assembly procedures, inspection checkpoints, and mistake-proofing measures where applicable.

Yes, depending on the product and applicable requirements. Testing can include dimensional, mechanical, environmental, material, electrical, functional, or reliability testing using appropriate equipment and procedures.

We use controlled work instructions, defined assembly sequences, inspection checkpoints, and mistake-proofing methods where appropriate. For critical operations, process controls are designed to prevent errors rather than relying only on final inspection.

Yes. We can coordinate components from multiple suppliers and manage receiving, assembly, testing, packaging, and final shipment. This gives customers a single coordination point for a multi-supplier manufacturing program.

Each project is assigned a project manager supported by engineering and other functional teams. The project manager coordinates engineering, quality, procurement, production, and logistics throughout the project.

We first evaluate the change and its impact on tooling, components, assembly, testing, packaging, inventory, and delivery. Once the change is approved, affected production and quality documentation is updated accordingly.

Yes. Depending on project requirements, traceability can link finished products to production, assembly, inspection, testing, packaging, and other relevant records. This supports faster investigation when quality issues occur after delivery.

We first assess the issue, affected quantity, batch information, root cause, and required response. Depending on the situation, the appropriate action may include rework, replacement, replenishment, or corrective action. For recurring or systemic issues, root-cause analysis and preventive actions are implemented.