How Value-Added Subassembly Supply Reduces Costs and Simplifies Production

Overview

Many OEMs rely on multiple suppliers to manufacture, inspect, assemble, and deliver optical components before final system integration. While this approach can work, it often increases procurement complexity, inventory requirements, quality risks, production time and most importantly, costs.

By providing value-added subassembly services, Westech can streamline the supply chain by delivering ready-to-install optical assemblies instead of individual components. This allows customers to focus on their core competencies while reducing manufacturing costs and accelerating product assembly.

The Challenge

A manufacturer of automated equipment sourced precision lenses and high-end industrial cameras from several different suppliers. The final subassemblies were completed by a combination of several suppliers and some in-house assembly before installation into finished products.

With limited expertise in assembling and focing the lenses into the cameras adequately, the customer encountered several challenges:

• Managing multiple suppliers for a single optical subassembly
• Increased inventory of individual components
• Labor-intensive in-house assembly processes
• Risk of assembly errors and component damage
• Longer production cycle times
• Additional quality inspections at multiple manufacturing stages
• Difficulty maintaining consistent assembly quality across production lots

The customer wanted to simplify manufacturing while ensuring every optical assembly met demanding performance and quality standards.

The Solution

Westech worked closely with the customer's engineering teams to develop a turnkey subassembly solution.

The new process included:

• Procurement of approved mechanical components from qualified suppliers
• Precision cleaning of all optical elements before assembly
• Assembly of lenses, spacers, retainers, and housings in a controlled manufacturing environment
• Alignment and focusing of optical components to specified tolerances
• Adhesive bonding or mechanical retention where required
• Functional inspection and optical verification of every completed assembly

Instead of shipping individual optical components, the manufacturer supplied fully assembled, inspected, and production-ready optical subassemblies.

Results

Implementing the subassembly program provided significant operational improvements:

• Reduced the number of suppliers required for each optical system
• Eliminated in-house optical assembly operations
• Reduced inventory of individual optical and mechanical components
• Improved assembly consistency and repeatability
• Lowered the risk of handling damage during customer assembly
• Reduced manufacturing lead times through consolidated production
• Simplified incoming inspection by receiving complete, tested assemblies

The customer was able to dedicate more manufacturing resources to their core products while relying on a trusted partner for optical integration.

Key Takeaways

Value-added subassembly products provide benefits that extend well beyond manufacturing individual optical components.

Customers gain:

• Simplified supply chain management
• Fewer vendors to manage
• Reduced assembly labor and manufacturing costs
• Improved product consistency and quality
• Shorter production lead times
• Lower inventory requirements
• Reduced risk of component damage
• Faster integration into final products
• A single point of responsibility for optical assembly performance

By delivering complete optical subassemblies rather than individual parts, Westech Optical becomes a strategic manufacturing partner — helping customers improve efficiency, reduce total cost of ownership, and bring products to market faster.