Quality Assurance
We maintain a quality management system certified to ISO 9001:2016 standards, demonstrating our dedication to ongoing quality enhancement and customer satisfaction.
Our Quality Objective:
Finished product pass rate ≥ 98%
On-time delivery rate ≥ 95%
Customer satisfaction ≥ 95%
We Ensure Quality in Every Step
Step 01
Pre-Production
Technical assessment
Prior to production, our engineering team conducts a thorough technical evaluation of your part designs, analyzing key aspects like material selection, surface finish, structural integrity, manufacturing processes, and other specifications detailed in your 3D and 2D drawings.
Material verification
Upon customer request, we supply a material certification for the parts we produce, sourced from the raw material manufacturer. This report typically includes details such as material heat number, grade, dimensions, mechanical properties, and chemical composition analysis.
Step 02
In-Production
On-site inspection system
In precision machining, workpieces must be precisely positioned at all times. An on-site inspection system automatically checks positions and makes necessary adjustments, helping to identify and resolve issues early, thereby saving time and reducing costs.
In-process quality control
At Kesu, we rigorously adhere to ISO 9001:2015 standards. Our quality control team performs routine inspections on all parts in production every two hours, proactively minimizing risks.
Step 03
Final-Production
Full-dimensional inspection report
Upon request, we provide comprehensive dimensional inspection reports for all orders, detailing part quantity, critical dimensions, threads, tolerances, thicknesses, depths, and part appearance.
Packaging
Delivering top-quality parts is our priority at Kesu. Recognizing the uncertainties of logistics, we minimize risks during packaging by using four protective layers: 1. wrapping paper, 2. EPE, 3. foam, and 4. a paper or wooden box. This ensures your parts arrive in pristine condition, maintaining their high quality and appearance.
Kesu’s facilities are outfitted with state-of-the-art tools and technology. Our expert team utilizes CNC machines, mold tooling, and advanced 3D printers, among other tools. With high-precision industrial manufacturing, a variety of finishes on solid metal or plastic parts, and our quality assurance capabilities, KeSu strives to make your custom parts to your specifications.
By overseeing all manufacturing in-house, we closely monitor quality at every stage. This approach ensures high standards, enables flexible production scheduling, and delivers cost-effective solutions without compromising quality. Direct oversight minimizes risks and enhances the reliability of your supply chain.
Dependable Quality to Unblock Innovation
200+
Employees 200+
500k+
Parts Produced Per Year
200+
Machines 200+
Inspection Equipment
Our facilities are equipped with cutting-edge inspection tools. We perform detailed inspections at each production phase to guarantee that every component is precisely crafted to meet your specifications.
Our happy customers
We've helped thousands of customers succeed
Choosing The Right Prototype Manufacturer. One-to-one support service by a technical team, quick response within a few hours.
Most competitive prices in the market, 30% lower than Europe and America.
Thomas
Sales Manager
★★★★★ 5/5
“Thank you for the warm message. It is my pleaseure to introduce other companies to yours as your work was excellent on the heatsinks we received from you earlier this year, and your craftsmanship speaks for itself. Keep up the good work.”
Addison.H
Head of Designer
★★★★★ 5/5
“Alfie is the Technical Director whom I have know for many years and is currently seeking a low cost, out-sourced, component manufacturing resource who can be responsible for machining complex components with short delivery times without comprising B.Motion’s high quality standards.”
Nancy. K
Engineer
★★★★★ 5/5
I would like to introduce Tony from Kesu Hardware Group.
He is my long term supplier with all my trust.
Can we please proceed the order for parts as quoted? Drawings and quote attached.
He is my long term supplier with all my trust.
Can we please proceed the order for parts as quoted? Drawings and quote attached.
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 |