CNC Machining Services for Automotive Parts
CNC Machining Services for Automotive Parts
We operate two major production bases and a dedicated warehousing center. Our workshops are fully equipped with a comprehensive range of machinery, including CNC milling, CNC turning, precision grinding, and EDM equipment, alongside a full suite of high-precision inspection instruments. This infrastructure enables us to handle the entire production process in-house, from raw material intake to final assembly, eliminating reliance on external subcontractors and ensuring full control over quality and delivery schedules.
Leveraging over two decades of experience in international trade, we consistently export our products to key global markets, including Europe and North America. To meet the automotive industry's rigorous standards for quality, cost control, and project delivery, we have established dedicated engineering and quality control teams. These teams engage in design optimization as early as the blueprint review stage, helping clients shorten development cycles and reduce overall manufacturing costs while ensuring precision tolerances and performance stability.
Key Value Proposition of FRIMA’s Automotive CNC Machining Services
Automotive components are critical to vehicle safety, service life, and regulatory compliance, generic machining services often fail to meet the industry's specific technical and management requirements. With years of deep expertise in providing CNC machining services for automotive parts, FRIMA delivers tangible, differentiated value to its clients:
● Dual Certification Standards: We strictly adhere to the IATF 16949 automotive quality management system and ISO 9001 general quality standards. We support full PPAP documentation submission, meeting the stringent supplier qualification requirements of OEMs and Tier 1 suppliers.
● Comprehensive One-Stop Service: We independently handle the entire process, including turning, milling, grinding, drilling, tapping, surface treatment, and assembly, thereby minimizing quality risks and communication overhead associated with managing multiple suppliers.
● Engineering-Led Cost Efficiency: Our experienced engineering team provides complimentary DFM (Design for Manufacturability) analysis. By optimizing processes and eliminating redundant steps at the design stage, we typically reduce unit costs by 10%–25%.
● Flexible Production Capacity: Our production lines adapt quickly to varying needs, from prototype validation (starting at a single unit) to mass production (hundreds of thousands of units annually), eliminating the need for clients to switch suppliers as production volumes change.
● Logistical Advantages: Our factory is located near the Ningbo-Zhoushan Port and offers convenient access to Shanghai airports. Supported by major international logistics partners such as UPS, DHL, and FedEx, we can deliver samples directly to the client’s site in as little as seven working days.
FRIMA Manufacturing Capabilities
Our production facilities are equipped with machining and inspection equipment covering the entire process chain for automotive components. We undertake the custom machining of parts made from various metals and engineering plastics, effectively addressing common industry challenges such as intersecting hole misalignment, complex surface machining, and anodizing consistency.
|
Machining Process |
Core Machining Scope |
Standard Tolerance Capability |
Typical Automotive Applications |
|
3/4-Axis CNC Milling |
Machining of flat surfaces, cavities, contoured surfaces and hole systems; max work envelope: 800×500×400mm |
±0.02mm |
Brackets, housings, valve bodies, sensor mounts, motor end covers |
|
CNC Turning |
Rotary component machining; max turning diameter Ø300mm, max turning length 600mm |
±0.01mm |
Shafts, pins, valve seats, injector sleeves, fasteners |
|
Live-Tool Turn-Mill Machining |
Equipped with powered tool turret; completes turning, cross-drilling, tapping, face milling and keyway machining in one setup |
±0.015mm |
Complex drive shafts, drilled pins, multi-function valve components |
|
Precision Grinding |
Cylindrical grinding, centerless grinding and surface grinding for ultra-precise dimensions and surface quality |
±0.002mm |
Bearing journals, gear shafts, hydraulic spools, precision fitting pins |
|
Drilling / Tapping / Boring |
Precision hole machining, thread machining and fine bore finishing |
±0.005mm |
Valve body holes, mounting threads, dowel pin holes |
|
Sinker EDM / Wire EDM |
Complex cavity machining, hard alloy processing and precision gear profile forming |
±0.003mm |
Mold inserts, special gear profiles, hard alloy components |
aluminum material
Surface Roughness Capabilities
● Standard mass-production surfaces: Ra 1.6 – 3.2 μm
● Precision functional mating surfaces: Ra 0.4 – 0.8 μm
● Super-finished sealing/bearing surfaces: Ra 0.2 μm
● All values are verified using calibrated contact profilometers in accordance with ISO 4287 standards.
Precision-CNC-Machined-Aluminum-Components
Complementary Surface Treatment Services
FRIMA offers comprehensive, one-stop post-processing services. All partner suppliers undergo rigorous qualification audits, and quality is strictly controlled throughout the entire process:
● Heat treatment: Induction hardening, carburizing, nitriding, tempering, stress-relief annealing
● Surface treatment: Grinding, deburring, electroplating, electroless plating, anodizing, black oxide coating, passivation, spraying
● Finishing: Polishing, sandblasting, thread rolling, honing
Comprehensive Automotive Component Coverage
Leveraging over two decades of industry experience, our CNC machining services for automotive parts span the core systems of both internal combustion engine (ICE) and new energy vehicles (NEVs), enabling the customization of various non-standard components based on customer blueprints.
1. Powertrain and Internal Combustion Engine Components
Valve guides, valve seat inserts, piston pins, crankshaft blanks, camshaft lobes, timing gear hubs, fuel injector bodies, nozzle seats, high-pressure fuel line connectors, turbine shafts, oil pump gears, water pump shafts, thermostat housings, etc.
2. New Energy Vehicle Core System Components
● Electric Drive System: Rotor shafts, stator housings, reducer gear shafts, differential housings, motor end caps
● Battery System: Structural brackets, busbar connectors, cooling plate fittings, explosion-proof valve assemblies, module fasteners
● Thermal Management System: Chiller valve cores, heat exchanger manifolds, coolant pump impellers, PTC heater housings
● Power Electronics: Inverter housings, connector pins, sensor bodies, busbar insulation components
3. Chassis, Steering, and Safety System Components
Steering column shafts, intermediate shafts, pinions, tie rod ends, ball studs, suspension control arm bushings, brake caliper pistons, ABS valve bodies, master cylinder parts, air suspension piston rods, valve block components, ADAS sensor mounting brackets, etc.
4. Fluid and Emission Control Components
Fuel rail assemblies, check valve components, EGR valve bodies, exhaust gas recirculation connectors, transmission valve body spools, solenoid valve sleeves, A/C compressor shafts, valve plates, etc.
Materials Engineering Capabilities and End-to-End Traceability
We support the customization of a full range of metal and engineering plastic materials. All raw materials are sourced from certified steel mills and reputable suppliers, accompanied by complete material certification, enabling full-batch traceability from raw material to finished product.
|
Material Category |
Common Machining Grades |
Typical Applications |
|
Carbon & Alloy Steels |
C45 / 1045, 42CrMo4 / 4140, 20NiCrMo2 / 8620, 16MnCr5 |
Shafts, gears, chassis components, high-strength fasteners |
|
Free-Machining Steels |
11SMn30 / 12L14, SUM24L |
High-volume non-critical parts, connectors, spacers |
|
Stainless Steels |
304 / 1.4301, 316L / 1.4404, 17-4PH / 1.4542 |
Fluid systems, sensors, corrosion-resistant components |
|
Aluminium Alloys |
6061-T6, 7075-T6, 2024-T4 |
Housings, brackets, lightweight structural parts, heat exchangers |
|
Copper & Brass |
C36000 Free-Cutting Brass, CuNiSi alloys |
Connectors, valve components, thermal conductive parts |
|
High-Temperature Superalloys |
Inconel 718, Hastelloy X |
Turbochargers, exhaust systems, high-temperature components |
|
Engineering Plastics |
PEEK, POM-C, PA66-GF30, PTFE |
Bushings, insulators, seal carriers, lightweight parts |
IATF 16949 Certified Quality Management System
Quality is the cornerstone of FRIMA’s business. We have established a comprehensive quality management system that complies with the IATF 16949 automotive industry standard, integrating quality control into every stage of our CNC machining services for automotive parts. From incoming material verification through in-process inspection to final validation, rather than relying solely on final inspection.
Layered Quality Control Process
1. Incoming Material Inspection: Verification of raw material certificates, dimensional spot checks, hardness testing, and visual inspection; non-conforming materials are strictly prohibited from entering inventory.
2. First Article Inspection (FAI): Full dimensional verification is performed on the first part of every production run; a formal First Article Inspection Report (FAIR) is issued, and mass production begins only after approval.
3. In-Process Inspection: Statistical Process Control (SPC) applied to critical dimensions; operators perform self-inspections at set intervals, while QC inspectors conduct independent patrols to detect deviations promptly.
4. Inter-process Verification: Dimensional re-verification performed after each process step; non-conforming parts are strictly prevented from proceeding to the next stage.
5. Final Inspection: Full-dimensional checks using CMM, surface roughness testing, thread Go/No-Go gauge testing, and comprehensive inspection of deburring and appearance.
6. Pre-shipment Audit: Sampling-based audits for mass orders conducted according to AQL Level II standards to ensure consistent shipment quality.
Key Inspection Equipment
● Bridge-type Coordinate Measuring Machine (CMM) with 0.001mm resolution; temperature-controlled inspection environment
● Optical profile projector and video measuring system
● Contact-type profilometer and roundness tester
● Calibrated thread plug/ring gauges (Metric / Imperial / ANSI standards)
● Rockwell and Vickers hardness testers
Compliance Documentation Support
● Support for PPAP (Production Part Approval Process) submissions (including process flow charts, PFMEA, control plans, SPC data, etc.)
● Complete material certifications and batch traceability records
● REACH and RoHS compliance declarations
● Customized inspection reports available upon customer request
FRIMA Development History
● 2009: Ningbo FRIMA manufacturing plant was officially established, launching local precision machining operations.
● 2013: Achieved ISO 9000 quality management system certification and established standardized quality processes.
● 2015: Officially launched international trade operations; products began exporting in volume to European and North American markets.
● 2019: Obtained TS 16949 (now IATF 16949) quality management system certification for the automotive industry.
● 2021: Relocated and expanded the factory; production area increased to 5,000 m², with a maximum annual production capacity of 2,000 tons.
Logistics and Delivery Advantages
● Port Advantage: Located in Ningbo—adjacent to the world's largest port, Ningbo-Zhoushan Port—we benefit from abundant shipping capacity and extensive routes, significantly reducing logistics costs and transit times.
● Convenient Air Freight: Easy access to Shanghai airports allows for direct air shipment of urgent orders.
● Express Delivery Network: Long-standing partnerships with UPS, DHL, FedEx, TNT, and EMS ensure that samples and small-batch orders can reach the customer's office in as little as seven working days.
● Flexible Delivery Models: We support various cooperation models—such as phased shipments under framework agreements, consignment inventory, and Just-in-Time (JIT) delivery—to align with the customer's production schedule.
Frequently Asked Questions
1. Can you provide PPAP documentation?
A: Yes. We have full PPAP submission capabilities and can provide a complete documentation package—including process flow charts, process FMEA, control plans, First Article Inspection (FAI) reports, SPC data, material certificates, and more—to meet the supplier qualification requirements of automotive clients.
2. What drawing file formats do you accept?
A: We support all mainstream engineering formats, such as STEP, IGES, SolidWorks (.sldprt), AutoCAD DWG/DXF, and CATIA. If you only have 2D drawings or physical samples, our engineering team can assist in generating production-grade 3D models.
3. Can you also handle heat treatment and surface finishing?
A: Yes. We offer a comprehensive one-stop service. Post-processing operations—such as heat treatment, electroplating, and anodizing—are carried out by strictly vetted, qualified suppliers. We manage the entire process, including quality control and schedule tracking, so you do not need to coordinate with multiple vendors.
4. Can you process customer-supplied raw materials?
A: We support the Customer-Supplied Material (CSM) cooperation model. All customer-supplied raw materials undergo a thorough incoming inspection to verify that the material and specifications meet requirements before production begins.
Get Your Personalized Machining Quote
Please provide the following information for a quote:
1. 2D & 3D CAD files or technical drawings with tolerances
2. Material grade, heat treatment, and surface finish requirements
3. Order quantity and estimated annual volume
4. Target delivery date
5. Certification level, PPAP requirements, and special documentation needs
Contact Email: info@frimaparts.com