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Glass Filled Ultem 2300 Lens Barrel Adapter

Lens Barrel Adapter
Lens Barrel Adapter

A company in the optics industry approached us here at E.T. Precision Optics Inc. to manufacture the lens barrel adapter highlighted here after two other shops delivered substandard parts that did not conform to the quality specifications. With our history of overcoming manufacturing challenges, they were confident in our ability to provide zero-defect parts that complied with their quality and performance standards.

One of our most important tasks involved developing a stable production process for close tolerance machining ULTEM 2300. ULTEM 2300 is a glass-reinforced engineering thermoplastic polymer that exhibits exceptional strength, stiffness, and high heat resistance. Since it is very abrasive, it requires aggressive machining that is rough on tools.

With the part's precision groove turning and threading requirements, we worked with a tool manufacturer to obtain custom form tools with a specialized coating to achieve high material yield and the correct finished size. Machined using our powerful OKUMA LB series capable of handling large bore parts, the lens adapter featured dimensions of 1.5" diameter x 1.75" in length. Using very sharp tools and paying detailed attention to offsets, feed rates, and speed, while controlling the heat, we performed close tolerance precision machining to uphold dimensional tolerances of +.0005" with ±.0004 TIR. Our operators continually monitored the entire process to ensure repeatable accuracy over the entire run of 350 units.

Our process resulted in 100% product yield.

As an ISO 9001:2008 certified lean manufacturing company, continuous improvement is one of our strengths. When developing a machining solution for this project, we combined our technical skills with our 25 years of experience to identify the best methods for attaining and then sustaining an exceptionally high standard of quality and precision. The customer was very impressed with the quality, performance, and unit cost of the final product. To learn more about this project or our production process, contact us today.

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Ultem 2300 Lens Barrel Adapter Highlights

Ultem 2300 lens barrel adapter
Capabilities Applied / Processes
Precision groove turning and threading
Equipment Used to Manufacture Part
Okuma LB3000 MYW turning center
Overall Part Dimensions
1.5 x 1.75
Tightest Tolerances
.0005 dia. .0004 TIR
Material Used
Glass filled ultem 2300 lens
Material Finish
As Machined
Industry for Use
In Process Testing / Inspection Performed
Cpk 1.33
Delivery / Turnaround Time
4 weeks
Delivery Location
New England
Standards Met
Zero defect