Delrin Machined Parts for Photonics

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Delrin Machined Parts for Photonics

Delrin Machined Parts for Photonics

Material:Black Delrin (Acetal / POM)

Finish:Machined with Matte Surface for Optical Compatibility

Description

This high-precision part is machined from black Delrin (POM), a durable engineering plastic known for its dimensional stability, low friction, and excellent wear resistance. The black finish helps minimize light reflection, making it ideal for photonics and laser applications.

Rollyu Precision is dedicated to the high-precision CNC machining of Black Delrin (Acetal/POM) components, with a focus on applications in photonics, optics, and laser-based systems. These custom components are known for their dimensional stability, low friction, and high strength, making them a reliable choice for optical mounts, laser assemblies, and alignment fixtures where performance and precision are critical.

By employing multi-axis CNC machining, we ensure each part meets strict tolerance and surface finish requirements demanded by modern optical and photonics assemblies. The black finish of Delrin not only enhances appearance but also reduces light reflection—crucial in laser and optoelectronic equipment. Its excellent machinability and wear resistance make Delrin a dependable material for demanding environments.

With certifications in ISO 9001:2015 and ISO 13485:2016, our facility is equipped to handle both prototype development and small-batch production, offering full traceability and consistent quality. We support clients across sectors such as medical optics, aerospace, fiber communications, and scientific research.

In addition to machining, we offer services such as CAD/CAM support, surface finishing, and assembly to support your project from concept to completion.

Reach out to Rollyu Precision to discuss your application or request a quote—we’re here to support your innovation with precision that performs.

Process

4-Axis CNC　Machining, CNC Milling, CNC Cutting, CNC Drilling, Tapping

Material Selection and Preparation	Raw material in black Delrin rod or sheet stock is chosen based on dimensions, mechanical properties, and intended tolerances. Stock is cut to size using band saw or circular saw before machining.
CNC Machining Setup	3-axis or 5-axis CNC milling or turning machines are prepped depending on part geometry. Workholding fixtures are selected to avoid deformation, as Delrin is softer than metals. Tools such as carbide end mills and high-speed steel drills are preferred.
Machining Process	Facing, milling, and turning: to shape the external geometry. Drilling and boring: for internal features such as holes or counterbores. Threading or tapping: when threaded features are required. Feeds and speeds are optimized to avoid melting or burring due to Delrin’s low melting point (~175°C).
Deburring and Cleaning	Manual or ultrasonic cleaning to remove chips and burrs. Compressed air or alcohol wipes are used to avoid chemical residue.
Quality Inspection	Dimensional inspection using CMM, calipers, micrometers. Surface roughness and cosmetic quality check. Functional test (if applicable) for moving or load-bearing parts.
Optional Post-Processing	Laser engraving: for logos, part numbers, or indicators. Assembly: if part of a larger mechanical system. Packaging: protective packaging to prevent deformation during shipping.

Applications

Custom CNC machined black Delrin (acetal) parts play a critical role in the precision engineering and assembly of high-performance photonic and optical systems. Thanks to their light-absorbing matte finish, dimensional stability, and non-metallic properties, black Delrin components are widely used in the following domains:

Industry	Application Examples
Photonics & Integrated Photonics	Structural mounts, spacers, and isolators in photonic chips and integrated optical circuits Non-reflective holders and protective components for cleanroom assembly
Quantum Photonics & Nano-Photonics	Precision-fixturing and micro-positioning components for quantum experiments and nanophotonics labs Mounts for single-photon detectors, superconducting circuits, or photonic crystals
Optoelectronics & Photonic Devices	Housings and holders for optoelectronic sensors, LEDs, laser diodes, and photodetectors Alignment fixtures in hybrid optical-electronic PCB modules
Laser Technology & Laser Systems	Light-absorbing baffles, laser safety covers, and beam path barriers Alignment fixtures for diode, fiber, or solid-state laser assemblies
Fiber Optic Technology & Optical Communications	Custom fiber optic holders, routing clips, and strain relief brackets Fixtures for polishing and testing fiber terminations
Optical Sensing & Optical Devices	Sensor housings, probe sleeves, and light shields for optical metrology systems Parts for environmental monitoring, LiDAR, and spectroscopic instruments
Optical Alignment Setups & Waveguide Technology	Mounts, jigs, and tooling blocks for waveguide alignment or beam path calibration Fixtures for coupling light into silicon photonics, integrated circuits, or micro-optical benches
Optical Amplifiers & Precision Assemblies	Enclosures, baseplates, or isolators in EDFA, Raman, or SOA modules Light-tight shielding around amplifier cavities

Specifications

Part number: RY-H0008

Materials Available: Stainless Steel, Steel, Aluminum, Brass, Plastic, etc.

Tolerance: ±0.05mm

Material Certificates: Available

MOQ:1 piece

Drawing Accepted: PRO/E, Auto CAD, SolidWorks, UG, CAD / CAM / CAE, PDF

RoHS/REACH Report: Available

Certificate: ISO9001:2015, ISO13485:2016

Non-disclosure agreement: Strictly sign a confidentiality agreement NDA to give you peace of mind

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Email Us: mitani@rymachining.com

FAQ

Why is black Delrin commonly used in photonics and optical systems?

Black Delrin (acetal homopolymer) offers excellent dimensional stability, low moisture absorption, and good machinability, making it ideal for precision optical mounts and housings. Its black pigmentation also reduces light reflection and scatter, which is essential in laser alignment, imaging, and optical isolation applications.

What kinds of components can be CNC machined from black Delrin?

We custom machine a wide range of optical and photonics parts including:

Lens holders and barrels
Laser apertures and isolators
Optomechanical mounts and brackets
Spacer rings and light baffles
Delrin’s stiffness and stability make it suitable for tight tolerance assemblies.

What tolerances can be achieved with CNC machined Delrin parts?

Our CNC machining process can maintain tolerances of ±0.025 mm (±0.001 inch) or better, depending on part geometry. Delrin’s dimensional stability ensures minimal deformation during and after machining, which is critical in optical alignment and sensor positioning systems.

Does black Delrin outgas or degrade in laser or vacuum applications?

Black Delrin is low outgassing and chemically stable under most ambient conditions, but it’s not recommended for high-vacuum or high-heat environments. For moderate laser system housings or optical bench components, it performs well. If ultra-low outgassing is required, we recommend PTFE, PEEK, or anodized aluminum.

Can you support prototyping and low-volume production for photonics startups or R&D labs?

Absolutely. We specialize in low-to-medium volume production, with fast turnaround on prototypes and custom parts for photonics OEMs, research institutes, and advanced imaging startups. We offer material certifications, CMM inspection, and full 3D model support to accelerate development cycles.

Outstanding Achievements and Partnerships

We take pride in our outstanding achievements and strong partnerships. Our commitment to great communication, service, and integrity has led to excellent results.

Join us as a valued partner, and together, we can make a positive impact on CNC.

Delrin Machined Parts for Photonics - Rollyu

Delrin Machined Parts for Photonics

Other CNC Parts

Email Us: mitani@rymachining.com

FAQ

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