Custom OEM Products Stainless Steel 304 Friction Welding CNC Turning Lathe Machining Spare Parts for Motor Pump Shaft Auto Car Vehicle

Product Description

China CNC Machining Service | ±0.01mm Tolerance | ISO 9001 Certified

 
At BestPro, we combine advanced 3–5 axis CNC technology with strict ISO 9001 & EN 10204 3.1 certified quality control to deliver precision parts with tolerances down to ±0.005mm.
72-hour prototype turnaround
Free DFM feedback for design optimization
Full process capability: machining, anodizing, laser marking
Low-volume flexibility (1–3,000 pcs) for R&D, prototypes, and bridge production
With 15 years of experience in complex geometries and tight tolerances, we provide a reliable, cost-effective, and professional solution from concept to final delivery.

Why 200+ Global Clients Trust BestPro

Precision Guaranteed – Tolerances down to ±0.005mm
Certified Quality – ISO 9001 & EN 10204 3.1 compliance
Advanced Capability – 3–5 axis CNC machining for simple & complex parts
Flexible Production – 1–3,000 pcs with zero MOQ
Material Expertise – Aluminum, stainless steel, titanium, engineering plastics
End-to-End Service – Machining, surface finishing, laser marking

BestPro delivers reliable, cost-effective CNC solutions trusted by leading companies worldwide.

Advantages

Fast & Efficient – Speeds up production with automated processes
Cost-Effective – Reduces material waste and labor costs
Safe – Minimizes operator risk during cutting
High Surface Quality – Often no need for extra finishing
Scalable – From prototypes to mass production
24/7 Automation – Runs continuously to meet tight deadlines

Processing Parameters

Service	4/5 Axis Machining Center
	CNC Lathe/Turning
	CNC Milling
	Turning & Milling
Axes Travel	CNC Turning/Lathe	X*Z: 1000mm*3000mm
	3 Axis & 3+2 Axis CNC Milling	X*Y*Z: 2000mm*1500mm*200mm
	5-Axis Machining center	X*Y*Z: 650mm*650mm*300mm
Material	1).Aluminum: AL 6061-T6,6063,7075-T etc.
	2).Stainless steel: 303,304.316L,17-4(SUS630) etc.
	3).Steel: 4140,Q235,Q345B,20#,45# etc.
	4).Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc.
	5).Brass: C36000 (HPb62),C37700 (HPb59),C26800 (H68),C22000(H90) etc.
	6).Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc.
Finish	Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish, Power coating,
	Passivation PvD, Titanium Plating, Electrogalvanizing, Electroplating chromium, electrophoresis,
	QPQ(Quench-Polish-Quench), Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc
Main Equipment	Machining Center, Lathe/Turning, Milling, Grinding machine, Cylindrical grinder machine, Drilling machine, laser cutting machine, etc.
Inspection	Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier.CMM
	Depth Caliper Vernier, Universal Protractor, Clock Gauge, internal Centigrade Gauge
Drawing format	CAD / PDF/ DWG/ IGS/ STEP/So etc or samples.

CNC Machining Material Selection Guide
Material Category	Material Name (EN / GB / ASTM)	Machinability	Appearance	Cost
Aluminum	EN AW-6061 / GB 6061 / ASTM B221	*****	****	**
	EN AW-7075 / GB 7075 / ASTM B209	**	****	****
	EN AW-2024 / GB LY12 / ASTM B209	**	***	****
Stainless Steel	EN 1.4301 / GB 06Cr19Ni10 / ASTM 304	**	***	****
	EN 1.4401 / GB 06Cr17Ni12Mo2 / ASTM 316	*	****	*****
	EN 1.4031 / GB 2Cr13 / ASTM 420	***	**	***
Carbon Steel	EN C45 / GB 45# / ASTM 1045	***	**	**
	EN S235JR / GB Q235 / ASTM A36	****	**	*
Brass & Copper	EN CW614N / GB HPb59-1 / ASTM C3604	****	*****	***
	EN CW004A / GB T2 / ASTM C1100	***	****	****
Titanium	EN Ti6Al4V / GB TA6 / ASTM Grade 5	*	****	*****
Tool Steel	EN X165CrMoV12 / GB Cr12Mo1V1 / ASTM D2	*	**	*****
Plastic	EN POM-C / GB POM / ASTM D4181 (Delrin)	****	***	**
	EN PEEK / GB PEEK / ASTM D6262	**	****	*****
	EN PTFE / GB PTFE / ASTM D1457	**	***	****
Note: Other materials can also be processed upon request. Please feel free to contact us for custom requirements.

Advantages

Forging vs Casting vs CNC Machining – Comparison Table
Aspect	Forging	Casting	CNC Machining
Strength	***** Excellent grain flow, highest mechanical strength	** May contain internal defects like porosity	**** Good, but grain structure not optimized
Precision	*** Moderate; better in closed-die forging	** Low to moderate, depends on process	***** High precision, tight tolerances
Surface Finish	** Requires post-machining or polishing	*** Better in die/investment casting	***** Excellent, depending on tooling and settings
Material Utilization	**** Less waste than machining	*** Moderate, some gating/risers lost	** Higher waste due to cutting/removal
Tooling Cost	**** Moderate to high (dies required)	*** Low for sand casting, high for die casting	** Low, mainly tooling and fixturing
Production Volume	**** Medium to high volumes	**** Suitable for both small and large batches	** Best for low to medium volume, or prototyping
Application Examples	Automotive shafts, aerospace parts, oil & gas components	Engine housings, pump bodies, structural parts	Precision housings, brackets, covers, prototypes

For maximum strength and safety-critical parts

For complex shapes, moderate precision, and high-volume production 

For high precision, complex geometries, or low to medium volumes 

 → Choose Forging
Ideal for shafts, gears, and structural components in aerospace, automotive, and heavy industry.

→ Choose Casting
Suitable for housings, pump bodies, engine blocks, and structural components.

→ Choose CNC Machining
Perfect for precision brackets, enclosures, custom parts, and prototypes.

Quality Assurance & Quality Control

Our integrated quality assurance (QA) and quality control (QC) systems ensure the highest production standards. 
ISO standard certifications upholds our quality management system, while the QC team conducts detailed inspections using advanced, calibrated equipment like CMM, VMS, calipers, and hardness testers etc..                     
This dual approach "focused on prevention and precise inspection" ensures all parts meet stringent specifications and customer requirements, maintaining top precision, performance, and reliability.

Basic Information

QC System	100% inspection before shipment
Drawing format	CAD / PDF/ DWG/ IGS/ STEP
Packaging	Standard package / Carton box or Pallet / As per customized specifications
Testing equipment	CMM (Coordinate Measuring Machine), VMS, Height gauge, Caliper, Hardness tester, Roughness tester, Projector machine, Pin/Angle/Block/Plug/Thickness/Thread/Radius gauge, etc.
Trade terms	EXW, FOB, CIF, As per the customer's request
Shipment Terms	1) 0-100kg: express & air freight priority
	2) >100kg: sea freight priority
	3) As per customized specifications
Note	All CNC machining parts are custom-made according to the customer's drawings or samples, with no stock. If you have any CNC machining parts to be made, please feel free to send your kind drawings/samples to us anytime by email.

Company Profile

BestPro Precision Manufacturing Co., Ltd.

BestPro founded in 2009,  is a leading manufacturer of custom precision parts based in Ningbo, China. Operating from a 2,500 square meter facility, with over 15 years of experience serving aerospace, industrial equipment, automotive, mining, energy, and electronics industries.
Our processing capabilities
We offer close-tolerance CNC Milling, CNC Turning, 5-axis machining services, sheet metal fabrication, and MIM (Metal Injection Molding) sintering processes.                                                                                              
In addition, we supply casting/forging from raw material to the final finished product with tried and tested suppliers but perform all in-house secondary machining and QC operations. Providing competitive rapid prototype and short to medium-run production machining services for our customers from all over the world.
Value-added Services
We have long-term cooperated vendors who offer anodizing, plating, welding, painting, heat treatment, and other finishing services. This helps us to deliver products with value-added services for our customers. Focus on your business.
We'll be your one-stop machine shop in China.

FAQ

Q: Which payment methods are accepted?
A: At BestPro, we accept payment methods such as T/T bank transfer and Paypal.
 
Q: What file formats do you work with?
A: The file formats we can accept include dwg, iges, stp, and pdf.
 
Q: Only have a sample, no drawings. Can you complete the task?
A: Certainly. Our design engineers can draft technical drawings from your sample and manufacture the product accordingly.
 
Q: How do you ensure good quality?
A: At BestPro, quality is our top priority. We implement robust systems, including pre-article inspections, in-process checks, and final inspections. With advanced equipment like CMM for precision measurement, we ensure exceptional quality control, earning the trust of our customers.
 
Q: Do you have a minimum order quantity?
A: NO!-No minimum quantity! BestPro provides prototypes and short tomedium-run production machining services.

Q: What precision tolerances can BestPro achieve?
A: Precision Machining Tolerances down to +/- 0005mm. BestPro can manufactureand inspect tight tolerances per your drawing specifcations.

Q: What general tolerances can BestPro achieve?
A: General Machining Tolerances on metal to +/- 0.01mm unless otherwisespecifed. Plastics and composites will be +/- 0.0254mm.

Q: How quickly can l get my parts?
A: Lead times are 1 to 3 weeks for prototypes and 4 weeks for production runs. Emergency and rush services are available.