CNC Precision Machined Optical Shim

Introduction

Inside a precision lens module, optical spacers and shims keep every lens element exactly where the design places it. They look simple, a thin ring with a center bore, but they set the distance and position between optical components, and that spacing is part of how the finished lens performs. At Xierge Precision Machinery, optical spacers for precision optical components are a long-standing and stable business segment, and one we have built up over many years since our establishment in 1990.

Scale is the first thing that defines this product line. Optical shims are needed in very large quantities, in many sizes, and with little tolerance for variation from one ring to the next. To serve this demand, we operate over 200 CNC lathes dedicated to this product line. That dedicated capacity allows us to plan production around optical customers' volumes and delivery rhythm, instead of squeezing these orders in between other work.

Our position in the optical supply chain is a matter of record. We supply Sunny Group, a global leading enterprise in optical lenses. Working with a customer at that level means our processes are measured against demanding expectations for consistency, cleanliness and delivery, and the experience we gain benefits every optical customer we serve.

The parts themselves are compact and easy to underestimate. The dimensions that matter most are the outer diameter, inner diameter and thickness, together with a flat, clean surface that sits correctly against the lens or the barrel. Because the rings are so small and thin, they can be affected by cutting forces, burrs and handling in ways that larger parts are not, which is why process control counts for more than raw machine time here.

Turning is the natural process for ring-shaped parts, and it is where our large lathe fleet comes into its own. Parts are produced strictly from customer drawings, and small differences in setup can repeat across thousands of pieces, so setup and monitoring are planned carefully. The challenge is not making one good ring, but making the ten-thousandth ring the same as the first.

Cleanliness is the next challenge. In optical assemblies, stray particles or residue can become a real problem once the lens module is put together. After machining, our shims are cleaned using professional cleaning machines to remove cutting residue, and finished parts are checked with testing instruments imported from Japan and Germany before they are packed.

Consistency across a large order is what optical customers ultimately buy. Our quality management systems are certified to IATF 16949:2016 and ISO 9001:2015, and we use premium raw materials for every order. The discipline that automotive quality systems demand carries directly into our optical production, where precision, cleanliness and repeatability are equally important.

Optical spacers sit alongside our work in automotive, liquid cooling and power tool components. Material and finish are confirmed with you based on your drawing and optical application, and our team reviews dimensions, quantities and packing requirements before production starts.

Through dedicated capacity, controlled production and strict quality inspection, Xierge Precision continues to supply optical shims that lens makers can rely on. Send us your drawings and requirements, and we will work with you on the right approach. Customers from China and overseas are always welcome to visit our factory.