CNC Turning for Bronze Components
Ideal for rotational bronze parts such as bushings, bearings, sleeves, and fittings requiring accurate bores, threads, and smooth surface finishes.
Metal Materials
Bronze CNC Machining Service
With two ISO-certified factories and extensive CNC machining experience, BatchMach Precision is a trusted custom bronze parts manufacturer specializing in bronze CNC machining services for prototypes, low-volume production, and repeat manufacturing. We produce bronze components with precise dimensions, excellent wear resistance, and reliable performance for applications involving friction, movement, and long-term operation.
- Two ISO-Certified CNC Machining Factories
- Custom Bronze Bushings, Sleeves & Fittings
- CNC Turning, Milling & Multi-Axis Machining
- From Prototypes to Full Production
- Material Certificates & Inspection Reports on Request
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19+
Years of Experience
250+
Machines & Testing Equipment
11,000 m²
Manufacturing Area
200+
Skilled Staff
ISO
9001 / 13485 / AS9100D
With years of experience in batch production and precision inspection of complex parts, we manufacture and inspect components to drawing requirements, covering critical dimensions, geometric tolerances, and material specifications. We provide complete measurement reports and material certificates to ensure delivered parts meet the specified requirements.
Trusted by
numerous companies
Bronze CNC Machining Capabilities
BatchMach Precision provides precision bronze CNC machining services, including CNC turning, milling, and multi-axis machining for custom bronze parts. We manufacture bronze machined parts with accurate features, stable performance, and consistent quality for applications such as bushings, bearings, gears, and mechanical components.
CNC Milling for Complex Bronze Parts
Supports bronze components with slots, pockets, mounting features, and complex geometries for industrial and mechanical applications.
Multi-Axis Machining for Precision Bronze Components
Enables efficient machining of complex bronze parts with multiple features, reducing setups and maintaining feature alignment.
Inspection & Process Control for Bronze Parts
Ensure consistent dimensions and reliable performance through controlled machining processes, CMM inspection, and quality verification.
Common Bronze Alloys for CNC Machining
| Bronze Alloy | Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | Hardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|---|
| C93200 Bearing Bronze | 130 | 90 | 10 | 65 | 8.8 |
| C95400 Aluminum Bronze | 275 | 145 | 12 | 170 | 7.45 |
| C54400 Free-Cutting Bronze | 170 | 90 | 18 | 80 | 8.86 |
Note: Property values are typical reference values and may vary depending on alloy condition, product form, manufacturing process, and supplier specifications.
Surface Finishes for CNC Bronze Parts
As Machined
Maintains the natural bronze surface after CNC machining without additional finishing. This option is suitable for functional components where dimensional accuracy and performance are more important than appearance.
Polishing
Creates a smoother and brighter surface by removing machining marks. Polishing is commonly used for bronze parts requiring improved appearance, reduced friction, and smoother contact surfaces.
Bead Blasting
Uses fine abrasive media to create a uniform matte texture on bronze surfaces. It helps improve surface consistency and reduce visible machining marks for applications requiring a refined appearance.
Tumbling
A mass finishing process used to smooth sharp edges and minor surface imperfections. It is suitable for small bronze components requiring improved handling and consistent surface texture.
Electropolishing
Provides a smoother surface finish by removing microscopic surface irregularities. It can improve cleanliness and corrosion resistance for specific bronze components.
Nickel Plating
Applies a protective nickel layer to the bronze surface to enhance corrosion resistance, wear performance, and surface durability in demanding environments.
Chrome Plating
Adds a hard and wear-resistant surface layer to bronze components. It is suitable for parts requiring improved surface hardness, durability, and appearance.
Powder Coating
Provides a protective coating layer with various color options. It improves surface protection and is suitable for bronze components requiring additional environmental resistance.
Brushed Finish
Creates a consistent directional texture on the bronze surface. This finish is mainly used for decorative applications where a uniform appearance is required.
Pros and Cons of Bronze CNC Machining
Bronze CNC machining provides excellent machinability, wear resistance, corrosion resistance, and low friction performance, allowing manufacturers to produce precise and durable components such as bushings, bearings, gears, and valve parts for demanding applications. However, bronze has a higher material cost and density compared with common CNC materials like aluminum, and different bronze alloys require proper tooling selection and optimized machining parameters to maintain processing efficiency and surface quality.
Pros
Excellent Machinability
Bronze contains copper-based alloys with good cutting characteristics, allowing CNC tools to remove material smoothly with stable cutting performance. This makes it easier to machine precise features such as bores, threads, grooves, and complex geometries while maintaining good surface quality.
Good Thermal Conductivity
Bronze provides good thermal conductivity, helping components transfer heat efficiently during operation. This makes bronze CNC machined parts suitable for applications involving friction, continuous movement, and heat generation.
Excellent Corrosion Resistance
Bronze has strong resistance to corrosion, especially in marine and industrial environments. CNC machined bronze components can maintain reliable performance in pumps, valves, fittings, and other applications exposed to moisture or corrosive conditions.
High Strength and Durability
Bronze provides a good balance of strength, wear resistance, and long-term durability. CNC machining enables the production of reliable bronze parts for demanding applications such as bearings, bushings, gears, and mechanical components.
!Cons
Tool Wear Considerations
Some bronze alloys, especially harder grades, may cause increased tool wear during CNC machining. Proper tooling selection and optimized cutting parameters help maintain machining efficiency and consistent surface quality.
Higher Material Cost
Bronze contains a high amount of copper, making it more expensive than common CNC materials such as aluminum.
Heavier Components
With higher density than aluminum alloys, bronze is less suitable for applications where lightweight design is required.
CNC Machined Bronze Parts for Industrial Applications
Bronze CNC machining is widely used for components requiring low friction, wear resistance, corrosion resistance, and reliable long-term operation. BatchMach Precision manufactures CNC machined bronze parts for industrial applications, including bronze bushings, bronze bearings, bronze gears, and custom mechanical components used in demanding working environments.
/01
Industrial Machinery
Bronze parts are commonly used in industrial equipment where continuous movement and friction resistance are required. CNC machined bronze bushings, bearings, and gears help improve equipment reliability and reduce maintenance requirements.
/02
Pumps & Valve Systems
Bronze components provide excellent corrosion resistance and stable performance in fluid handling systems. They are widely used for pump parts, valve components, fittings, and sealing-related applications.
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Marine Equipment
Due to its corrosion resistance and suitability for wet environments, bronze is commonly selected for marine applications. CNC machined bronze components are used in marine fittings, bushings, bearings, and mechanical systems.
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Automotive Applications
Bronze precision parts are used in automotive systems requiring smooth movement and durability, including bushings, bearings, and wear-resistant mechanical components.
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Automation Equipment
Bronze components support automated systems with repeated motion requirements. Their low friction characteristics make them suitable for precision moving parts and mechanical assemblies.
Bronze CNC Machining Capabilities at Our Factory
5-Axis Machining Centers
DMU 95 CNC Machining
DMG MORI Workshop
CNC Machining Workshop
CNC Production Line
CNC Production Workshop
Aerospace CNC Milling
Large-Part CNC Workshop
Large-Part Machining
Powder Coating Workshop
Why Choose BatchMach Precision for Bronze CNC Machining
Extensive Bronze Machining Experience
BatchMach Precision has experience machining different bronze alloys and understands their unique cutting characteristics. We help customers select suitable materials, optimize machining processes, and produce reliable bronze components for various applications.
Advanced CNC Machining Capability
With CNC turning, milling, and multi-axis machining capabilities, we manufacture bronze parts with precise dimensions, complex features, and consistent quality. Our processes support prototypes, low-volume production, and repeat manufacturing.
Cost-Effective Manufacturing Solution
By combining in-house machining capabilities, optimized production processes, and efficient manufacturing management, BatchMach Precision helps reduce unnecessary processing costs while maintaining part quality and delivery reliability.
Bronze CNC Machining FAQ
Yes. BatchMach Precision uses CNC turning, milling, and 5-axis machining to manufacture custom bronze parts from customer drawings. Turning supports bushings, sleeves, and other rotational components, while milling produces slots, pockets, flats, and mounting features. We select the machining route around your bronze grade, part geometry, and dimensional requirements.
The right bronze grade depends on operating load, wear conditions, lubrication, and environment. C93200 bearing bronze is commonly used for bushings, C95400 aluminum bronze offers higher strength, and C54400 leaded phosphor bronze is another option for machined components. BatchMach Precision reviews your specified grade, material form, and availability before quoting, helping you confirm a practical manufacturing route.
Bronze bearing alloys are worth considering for bushings and sliding components, while free-cutting brass such as C36000 offers excellent machinability. The choice should reflect the specific alloy and application, including load, lubrication, corrosion exposure, and manufacturing cost. BatchMach Precision can review how your selected material affects machining and quote alternatives for your engineering team to assess.
BatchMach Precision can achieve tolerances as tight as ±0.005 mm on suitable turned features, subject to engineering review. Achievable tolerances depend on the bronze grade, component size, wall thickness, geometry, and inspection access. Mark critical fits and geometric tolerances on your drawing so we can confirm the machining and measurement requirements before production.
Yes. BatchMach Precision supports individual bronze prototypes, production batches, and repeat orders with no minimum order quantity. You can begin with parts for assembly checks and functional testing, then move into production once the design is approved. We plan subsequent orders around the agreed drawing revision, material specification, and inspection requirements to support consistent supply.
Bronze CNC machining costs depend on material grade, stock size, machining time, quantity, tolerances, finishing, and inspection requirements. BatchMach Precision provides factory-direct quotations based on your drawings. We can review tool access, deep features, and tolerance requirements to identify potential savings, and quote different quantities so you can compare prototype and production costs.
Lead time is confirmed after reviewing your drawings and material requirements. Bronze availability, part complexity, order quantity, finishing, and inspection all affect the schedule. For urgent projects, send your required delivery date with the inquiry so BatchMach Precision can assess an expedited production plan. Your quotation will state the production lead time, with shipping time considered separately.
Bronze parts can be supplied as machined and deburred, with surface roughness requirements defined on your drawing. For polishing, bead blasting, or plating requests, BatchMach Precision reviews compatibility with the selected alloy and confirms the process during quotation. Identify bearing surfaces, sealing faces, and critical fits so finishing requirements can be included in the manufacturing plan.
BatchMach Precision operates two ISO-certified CNC machining facilities and uses dimensional inspection, including CMM measurement where appropriate, to verify drawing requirements. Inspection focuses on specified characteristics such as bore sizes, shaft diameters, and feature positions. Material certificates, first article inspection (FAI), and dimensional reports can be provided according to agreed project requirements, supporting incoming inspection and repeat purchasing.
Send your 3D CAD model, a dimensioned drawing, bronze grade, order quantity, finish requirements, and delivery location. Identify critical tolerances, mating features, and any material certificate or FAI requirements. BatchMach Precision will review manufacturability, clarify outstanding technical details, and prepare a quotation covering machining, inspection, and agreed finishing. Including your target delivery date helps us plan around your project schedule.
More Materials for CNC Machining
In addition to bronze, BatchMach Precision provides CNC machining services for a wide range of metal and plastic materials. Our experience with different material characteristics allows us to select suitable machining processes, tooling strategies, and finishing options based on part requirements. Explore our other CNC machining materials, including aluminum, stainless steel, titanium, brass, copper, and engineering plastics.
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