Dongguan Changxinda Precision Technology Co., Ltd.
| Color | Customized,nature |
| Tolerance | ±0.01 |
| Supply Ability | 10000Pcs/Month |
| Verticality | 0.01.5mm |
| Size | Customized |
| Applications | Automotive parts, Aerospace components, Medical devices |
| Delivery Time | 3-7 days. Small batch (10-100 pcs): 7-14 days. Mass production: 14-30 days depending on quantity and complexity. Rush service available for urgent projects. |
| Repeatability | ±0.005 mm |
| Straightness | 0.015mm |
| Finishing | passivation/electropolishing |
| Payment Terms | L/C,D/A,D/P,T/T |
| Max Turning Length | 500 mm |
| Material Compatibility | Metal, Plastic, Wood |
| Dimension | base on your drawing |
| Chuck Size | 6 inches |
| Product Namflangee | Flange |
| Swing Over Bed | Typically 200-600 mm |
| Standard | GB,JIS,DIN,ASTM,BS,NF |
| Packaging Details | Standard export packaging or custom |
| Model Number | Custom |
| Certification | ISO9001 |
| Place of Origin | China |
| Brand Name | China-CXD |
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Product Specification
| Color | Customized,nature | Tolerance | ±0.01 |
| Supply Ability | 10000Pcs/Month | Verticality | 0.01.5mm |
| Size | Customized | Applications | Automotive parts, Aerospace components, Medical devices |
| Delivery Time | 3-7 days. Small batch (10-100 pcs): 7-14 days. Mass production: 14-30 days depending on quantity and complexity. Rush service available for urgent projects. | Repeatability | ±0.005 mm |
| Straightness | 0.015mm | Finishing | passivation/electropolishing |
| Payment Terms | L/C,D/A,D/P,T/T | Max Turning Length | 500 mm |
| Material Compatibility | Metal, Plastic, Wood | Dimension | base on your drawing |
| Chuck Size | 6 inches | Product Namflangee | Flange |
| Swing Over Bed | Typically 200-600 mm | Standard | GB,JIS,DIN,ASTM,BS,NF |
| Packaging Details | Standard export packaging or custom | Model Number | Custom |
| Certification | ISO9001 | Place of Origin | China |
| Brand Name | China-CXD |
Dongguan Changxinda Precision Technology Co., Ltd. specializes in turn-mill compound machining of precision optical lens barrel housings for camera, lens, and optical instrument applications. Manufactured using advanced turn-mill composite machining centers that combine CNC turning and milling capabilities in a single setup, these precision optical housings deliver superior dimensional accuracy, concentricity, and surface finish compared to conventional multi-setup machining. The lens barrel serves as the critical structural foundation for camera lenses, providing precise lens element positioning, smooth focusing mechanisms, and secure mounting interfaces for optical assemblies. The natural aluminum finish with visible machining marks and silvery metallic luster showcases the authentic precision manufacturing quality that optical equipment manufacturers trust.
The turn-mill compound machining process offers significant advantages for optical lens barrel production. By performing turning operations for cylindrical features and milling operations for flats, slots, and mounting holes in a single workholding setup, turn-mill machining eliminates the accumulation of setup errors that occur when parts are transferred between separate lathes and milling machines. This single-setup approach ensures perfect concentricity between the cylindrical bore, external threads, and mounting flange features - critical for maintaining optical axis alignment in precision lens systems. The result is superior geometric accuracy, improved surface finish, and reduced production lead times.
The aluminum alloy construction offers excellent machinability, good strength-to-weight ratio, and superior thermal stability essential for optical applications. Aluminum's low thermal expansion coefficient helps maintain optical alignment across temperature variations, while its lightweight characteristics reduce overall system weight for portable camera and lens systems. The material's excellent machinability enables production of complex internal features including lens seats, focusing threads, and alignment guides with tight tolerances. The natural metallic finish displays characteristic tool marks and bright silvery sheen that indicate high-quality turn-mill compound machining.
Precision is fundamental to optical lens barrel performance. Changxinda's turn-mill compound machining operations achieve tolerances of +/-0.01 mm on critical dimensions, ensuring consistent lens element positioning and optical axis alignment across production batches. The single-setup machining process maintains perfect concentricity between the internal cylindrical bore, external mounting features, and threaded sections. Internal diameter accuracy is controlled to tight tolerances to maintain optical axis alignment, while lens seat flatness ensures proper element seating without stress-induced optical distortion. Thread pitch accuracy for focusing mechanisms ensures smooth, precise adjustment without backlash or binding.
The lens barrel features a cylindrical main body with external threading for lens assembly and a large top mounting flange with multiple precision holes for secure attachment to camera bodies or optical systems. The flange includes precision-machined locating features and mounting holes arranged in a circular pattern for standardized optical mounting. Side flats and keyways provide anti-rotation features and wrench grip surfaces for assembly. The internal bore includes precision-machined lens seats with controlled diameters and surface finish for accurate optical element positioning. The turn-mill process produces all these features - cylindrical bores, external threads, flange faces, mounting holes, and side features - in a single efficient operation.
Dongguan Changxinda Precision Technology Co., Ltd. is ISO 9001:2015 certified and committed to delivering precision machined components that meet the highest industry standards. With a team of more than 30 experienced professionals and comprehensive turn-mill compound machining capabilities, the company provides fast delivery, responsive communication, and reliable quality that has resulted in many successful cooperation cases with satisfied customers worldwide. Whether you need prototype lens barrels for optical system development or production quantities for commercial camera and lens manufacturing, Changxinda delivers turn-mill compound machining excellence tailored to your optical housing requirements.
Q1: What advantages does turn-mill machining offer for optical barrels?
A: Turn-mill machining performs turning and milling operations in a single setup, eliminating setup errors between operations. This ensures perfect concentricity between cylindrical bores, external threads, and mounting features - critical for optical axis alignment.
Q2: What materials are available?
A: Aluminum alloys (6061-T6, 7075-T6) are standard for their machinability and thermal stability. We also work with stainless steel, brass, and engineering plastics for specialized applications.
Q3: What tolerances can you achieve?
A: We achieve +/-0.01mm on critical dimensions. Concentricity between bore and mounting features is typically held within 0.02mm TIR through single-setup turn-mill machining.
Q4: Can you produce custom designs?
A: Yes, we specialize in custom optical housing manufacturing. Our team works with your 3D CAD models and specifications to develop barrels meeting your exact requirements.
Q5: What thread specifications are available?
A: We machine various thread types including metric fine pitch, ACME threads, and custom forms optimized for smooth focusing operation. Thread accuracy is verified with precision gauges.
Q6: What is typical lead time?
A: Prototypes typically require 2-3 weeks. Production orders range from 4-8 weeks depending on quantity and specifications. Expedited service is available.
Q7: Do you provide surface treatments?
A: Yes, we offer anodizing (Type II and Type III hardcoat), black anodizing for light control, and custom colors for improved wear resistance and appearance.
Q8: Can you handle both prototype and production quantities?
A: Yes, we support from single-piece prototypes to high-volume production. Our flexible manufacturing adapts to your quantity requirements.
Q9: What quality documentation is provided?
A: We provide material certificates, dimensional inspection reports with CMM data, surface finish reports, thread inspection, concentricity verification, and first-article inspection reports.
Q10: How is optical axis alignment ensured?
A: Single-setup turn-mill machining maintains concentricity between all critical features. CMM verification confirms alignment of bores, threads, and mounting surfaces to maintain optical performance.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2008
Total Annual:
10000000-20000000
Employee Number:
90~102
Ecer Certification：
Verified Supplier
Dongguan Changxinda Precision Technology Co., Ltd. is a professional CNC precision parts manufacturer established in Dongguan, China since 2008. With 17+ years of experience and a skilled team of 30+ workers, we specialize in custom CNC precision parts, jigs, fixtures, hardware, molds, and metal pro... Dongguan Changxinda Precision Technology Co., Ltd. is a professional CNC precision parts manufacturer established in Dongguan, China since 2008. With 17+ years of experience and a skilled team of 30+ workers, we specialize in custom CNC precision parts, jigs, fixtures, hardware, molds, and metal pro...
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