
Quality CNC Machining Service
Accelerate prototyping, product development and production with a faster, easier way to get precision CNC machined parts. Bring your product from the design and prototyping stage through to full production with our experts.
- High Complexity Machining Capability
- Tolerance as tight as ±0.005mm
- Advanced In-house Equipments
- 200+ Experienced staff
What We Good At CNC Machining Processes
CNC Milling
CNC Turning
CNC turning removes material by contacting a cutter with the high-speed rotating workpiece and creating round or tubular shapes. The CNC turning process allows the generation of complex external geometries and internal holes. Standard and live tooling capabilities for cylindrical parts.
CNC Turn-Milling
5-Axis CNC Machining
Precision CNC Machining
CNC Swiss Machining
Swiss CNC machining can produce small, intricate parts in high-volume for a number of industries, predominantly automotive, medical, defense, and electronics-related sectors. CNC Swiss Machining is cost-effective and presents increased precision over other similar methods.
From Design to Prototyping to Production
- 15+ Years of Experience
- ISO 9001:2015 certified QMS
- CMM Quality Inspections
- Surface Finishing Options

Custom CNC machining service
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Rapid Prototyping
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Rapid Manufacturing
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Custom CNC Machining
We've helped thousands of customers succeed

Thomas
Sales Manager

Addison.H
Head of Designer

Nancy. K
Engineer
He is my long term supplier with all my trust.
Can we please proceed the order for parts as quoted? Drawings and quote attached.
CNC Machining Materials
Name | Description |
Aluminum | Aluminum and Aluminum Alloy are lightweight and highly versatile material with a high strength-to-weight ratio, excellent corrosion resistance, malleability, and good thermal and electrical conductivity. Ideal for Aluminum CNC machining applications where weight reduction, durability, and efficient heat transfer are important. |
Brass | 360 Brass (free-machining brass) is a versatile material with excellent machinability, high corrosion resistance, and good electrical conductivity. Commonly used for gears, lock components, pipe fittings, and decorative Brass CNC parts, ideal for electrical components and marine applications. |
Bronze | 932 Bearing Bronze provides excellent wear and corrosion resistance due to its tin, iron, and zinc content. Commonly used in bearings, bushings, thrust washers, valve components, and Bronze CNC parts subjected to heavy loads or harsh environments, offering high strength and low friction. |
Cast Iron | Cast Iron is known for its durability and wear resistance, making it an excellent choice for absorbing vibrations. Commonly used in gears, bases, pulleys, and bushings in heavy-duty machinery and equipment, preferred for its ability to withstand high stress and pressure. |
Copper | Copper 101 and 110 have unmatched thermal and electrical conductivity, making them popular for bus bars, wire connectors, and electrical applications like power transmission systems. CNC machined Copper Alloy Offers durability, corrosion resistance, and ease of fabrication. |
Invar | Invar is a Ni-Fe alloy with high dimensional accuracy and excellent thermal dimensional stability. Used in aerospace, electronics, and precision engineering for precision instruments, clock pendulums, bi-metallic strips, satellite structures, antennas, and optical systems. |
Kovar | Kovar is a Ni-Fe-Co alloy known for its excellent thermal expansion properties and dimensional stability, used in electronics, telecommunications, and aerospace for hermetic seals in vacuum tubes, transistors, and turbine blades, enabling airtight sealing with glass. |
Magnesium | Magnesium and Magnesium Alloy has an excellent strength-to-weight ratio, widely used in automotive, aerospace, and electronics for lightweight components like aircraft structures, engine blocks, transmission cases, and wheels, Magnesium CNC machining improving fuel efficiency and reducing emissions. |
Stainless Steel | Stainless Steel is a versatile material with exceptional strength, durability, high temperature, and corrosion resistance. Used in construction, automotive, aerospace, and Stainless Steel CNC manufacturing for heat exchangers, exhaust systems, engine components, fasteners, and medical equipment. |
Steel | Steel (alloy and carbon) provides excellent strength and durability, used for fixtures, mounting plates, draft shafts, axles, torsion bars, gears, bolts, studs, shafts, and structural components in demanding industrial applications. |
Titanium | Titanium and Titanium Alloy are lightweight, strong, biocompatible, and highly resistant to corrosion, with a high strength-to-weight ratio and excellent temperature resistance. CNC machined Titanium used in aerospace and medical devices for engine components, landing gear, medical implants, turbine blades, and marine applications. |
Tool Steel | A2 Tool Steel has excellent wear resistance and toughness, commonly used to make fixtures, tools, tool holders, gauges, and punches. |
Zinc | Zinc and Zinc Alloy are versatile metal with excellent heat resistance, durability, strength, electrical and thermal conductivity, machinability, and corrosion resistance. CNC Zinc is used in automotive parts like gears, bushings, bearings, door and window hardware, electrical connectors, and applications in harsh environments. |
Name | Description |
ABS | ABS (Acrylonitrile Butadiene Styrene) is an affordable thermoplastic that has become popular for pre-injection molding prototypes. It is a versatile material known for its strength, durability, and resistance to impact and heat. CNC machined ABS is widely used in automotive and consumer electronics industries. |
Acrylic | Acrylic is a durable plastic material that is resistant to scratches, making it an ideal choice for various applications such as tanks, panels, and optical displays. It is also lightweight and shatter-resistant, a popular alternative to glass, known for its clarity and transparency. |
Delrin | Delrin is a plastic with low friction and high stiffness, offering exceptional dimensional accuracy, high toughness, and resistance to impact and wear. Commonly used in automotive, aerospace, and consumer goods for applications requiring precision. |
Garolite G-10 | Garolite G-10 is a high-pressure laminate of woven fiberglass cloth impregnated with epoxy resin, exhibiting excellent electrical insulation, water resistance, high mechanical strength, and dimensional stability. Used in insulating components, circuit boards, and electrical parts. |
HDPE | High-density polyethylene (HDPE) is a versatile thermoplastic known for its durability, chemical resistance, impact resistance, structural integrity, and low moisture absorption. Commonly used in packaging, construction, automotive manufacturing, plugs, seals, and as an electrical insulator. |
Nylon | Nylon is a thermoplastic with high strength, wear resistance, excellent sound/vibration dampening, and low friction coefficient. CNC machined Nylon is commonly used in engineering for gears, bearings, bushings, medical devices, and electronics insulation, notably screws and spacers for circuit boards. |
PEEK | PEEK (polyether ether ketone) is a thermoplastic with high strength, stiffness, toughness, chemical, biocompatibility, and thermal resistance, suitable for harsh environments. CNC machined PEEK is used in aerospace, automotive, and electronics for aircraft structures, electronic components, and medical implants. |
Polycarbonate | Polycarbonate is a durable and transparent thermoplastic with good electrical insulation, heat resistance, impact resistance, clarity, flame retardancy, and scratch resistance. CNC machined Polycarbonate is commonly used in safety glasses, protective shields, electrical enclosures, connectors, and insulators. |
Polypropylene | Polypropylene (PP) is a thermoplastic with a high melting point, high strength-to-weight ratio, excellent chemical resistance, durability, moisture resistance, and fatigue strength. Used in laboratory equipment, medical devices, food processing, automotive, and aircraft components. |
PPS | Polyphenylene Sulfide (PPS) is a thermoplastic with exceptional chemical resistance, thermal stability, high-temperature resistance, dimensional stability, and electrical insulation. Used in automotive components, electrical connectors, and industrial equipment like fuel systems and bearings. |
PTFE | PTFE has low friction nonstick properties, excellent chemical resistance, high temperature resistance, and electrical insulating properties. Commonly used in low-friction applications like bearings, seals, gaskets, and parts requiring insulation. |
PVC | PVC (Polyvinyl chloride) is a plastic with high durability, excellent chemical, UV, and corrosion resistance. CNC machined PVCis used in pipes, fittings, electrical enclosures, tubing, automotive interiors, and commercial building components, offering cost-effectiveness and a long lifespan. |
Torlon | Torlon is a thermoplastic with exceptional mechanical strength, heat resistance, and chemical resistance, reliable in extreme conditions. Used in aerospace, automotive, and oil and gas, suitable for harsh environments with exposure to chemicals and solvents. |
UHMW | Ultra-High-Molecular-Weight Polyethylene (UHMW) has high abrasion resistance, durability, excellent wear resistance, low friction coefficient, and impact strength. Used in gears, bearings, liners, conveyors, food processing, agriculture, and automotive components, with shock absorption capabilities. |
Ultem | ULTEM is a thermoplastic with exceptional strength, stiffness, durability, environmental resistance, heat resistance, low flammability, and electrical insulation. Used in electronic components, surgical instruments, aerospace engine components, medical devices, and corrosive environments. |
Name | Applicable Materials | Colors | Can Be Applied with |
Chem Film | Aluminum Alloy | Clear, gold | Media Blasting, Tumbling, Type II Anodizing*, Type III Anodizing with PTFE* |
Anodizing | Aluminum | Clear, black, grey, red, blue, gold | Media Blasting, Tumbling, Chem film* |
Black Oxide | Steel, Stainless Steel | Black | Media Blasting, Tumbling, Passivation |
Electroless Nickel Plating | Aluminum, Steel, Stainless Steel | — | Media Blasting, Tumbling |
Electropolishing | Steel, Stainless Steel | — | — |
Hand Polishing | Acrylic | — | Enhanced Cosmetic Appearance |
Media Blasting | Aluminum, Steel, Stainless Steel, Brass, Bronze, Copper | — | All post CNC processes, except Electropolish and Powder Coat |
Nickel Plating | Aluminum, Steel, Stainless Steel | — | Media Blasting, Tumbling |
Passivation | Steel, Stainless Steel | — | Black Oxide, Electroless Nickel Plating, Zinc Plating, Tumbling, Media Blasting |
Powder Coating Services | Aluminum, Steel, Stainless Steel | Full Pantone or RAL color catalog | — |
Tumbling | Aluminum Alloy, Steel, Stainless Steel, Brass, Bronze, Copper | — | All post CNC processes, except Electropolish and Powder Coat |
Vapor Polishing | CNC Polycarbonate (Clear, Black) | — | Enhanced Cosmetic Appearance, Near Optically Clear Applications |
Zinc Plating | Steel, Stainless Steel | Clear (light blue coating), Black (glossy black coating) | Media Blasting, Tumbling, Passivation |
CNC Machining FAQs
What is your typical lead time for CNC machining orders?
KeSu provides a variety of lead times to match your budget while maintaining your project timeline. We can supply CNC parts as quickly as three days.
What tolerances can your CNC machines achieve?
KeSu's standard tolerance is applied to ISO 2768 (medium) for machined plastic and ISO 2768 (fine) for machined metals. Typically, we can hold a CNC machining tolerances as tight as ±0.0002″ (±0.005mm). If tighter tolerances are required, a 2D drawing with complete information will be necessary. Our engineering team will communicate with you the critical dimensional tolerances and provide the highest degree of precision possible.
What kind of CNC machining services do you offer?
CNC machining is also called computer numerical control machining. We do the following machining services: milling, turning, drilling, threading, tapping, EDM and wire EDM, custom surface finishing, prototype machining, low volume or one-off part machine run, modification of an existing part, material sourcing assistance, limited material warehousing and parts dispatching.
From prototype to production, we offer fast turnaround CNC machining of your custom metal and plastic parts with as fast as 3-day delivery.
What is the typical cost of a CNC machined part?
Our engineering and sales teams will provide one-on-one CNC quote support for your project. Typically, for similar parts, CNC lathes cost 15% less to machine than standard 3-axis CNC milling. In contrast, the cost of 5-axis machining increases, continuous 5-axis CNC milling typically costs over 20% more than an indexed 5-axis machine (also referred to as 3+2 milling), and about double that of a standard 3-axis mill. To achieve the most cost-effective CNC machined parts, larger production runs are recommended to spread the cost of machine setup.
What if I am not completely satisfied with the quality of the parts I receive
Firstly, we guarantee our materials and process based on the terms of the initial order and the information provided by you.Every part will be controlled and inspected strictly by our engineers and QC department, Any disputes based on a subjective determination shall be brought to the attention of management who will act in good faith to provide you with complete satisfaction. Our continuing business relies on earning your confidence in our ability to meet and exceed any reasonable expectations.
CNC Machining Parts

Precise Turbomachinery CNC parts
Turbine machining is a critical part of turbine manufacturing and turbo machining. KeSu adopts advanced precision CNC machines to process turbocharger compressor housing, turbine housing, bearing housing, compressor wheel impeller, turbine shaft wheel, impeller, propeller, double blade compressor wheel, titanium blank compressor wheel and other back plates/seal plates and other parts.

Complex CNC parts
CNC machining is widely used to produce complex structural components across various industries. Parts like aerospace turbine blades, medical implants, automotive engine blocks, cavity and intricate molds feature sophisticated geometries, tight tolerances, and diverse materials such as titanium, stainless steel, and composites. Advanced multi-axis CNC systems enable precise fabrication of curved surfaces, deep cavities, and fine details, ensuring high-quality outcomes for demanding applications.

Automotive CNC parts
Leveraging advanced CNC technology, these complex CNC parts are machined: engine components including pistons, cylinder blocks, cylinder heads, crankshafts, connecting rods, camshafts, and intake/exhaust manifolds; suspension and steering system parts like steering knuckles, suspension links, shock absorber components, and wheel hubs; new energy vehicle parts including motor housings, battery trays, gearbox case cover, gearbox cover, deep-cavity case, turbocharger impellers, turbojet impeller, valve body, motor housing and electronic control unit housings.

Miscellaneous CNC parts
We specialize in crafting intricate components, including steering knuckles, cast iron and steel transmission pinions, chuck parts, involute spline shaft parts, hydraulic cylinders, and pump components such as aluminum pump housings and covers. Our expertise extends to turbocharger parts like compressor housings, steering housings, turbine housings, and turbine wheels, as well as compressor starter wreaths, automotive engine components, impellers, spiral shafts, and embossing rollers. Utilizing advanced CNC machining techniques, we ensure tight tolerances and exceptional performance across a wide range of applications.
CNC Machining Resource

From CNC Machining to CMM Inspection: A Complete Guide to Precision Machining
A comprehensive guide to precision machining, covering CNC machining and CMM inspection, with detailed parameters and processes for manufacturing professionals.

CNC Machining in China: A Historical Perspective
A comprehensive historical perspective on CNC machining in China, exploring its evolution, technological advancements, and global impact from the 1970s to the present.

Aluminum Alloys for CNC: Precision, Properties, and Applications
Aluminum alloys are engineered to meet the rigorous demands of CNC machining, offering a balance of performance, cost, and manufacturability.
Quote Now to Start Your CNC Machining Project
Complete CNC machining services from prototype to production ensure high quality, fast delivery and competitive prices.