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Factory Price Automobile/Mechanical Engine Forged Crankshaft for Excavator
US$25.00-129.00
1 Piece
Sample price:US$7.00/piece.Request sample
Product profile
Customization
AvailableAfter-sales Service
Contact UsApplication
Excavator, Lawnmower, Tractor, Ke Tan, Boat, Motorbike, Truck, Car, Agricultural Machinery PartsModel NO.
WF-SACertification
RoHS, CEWarranty
6 MonthsEngine Type
DieselMaterial
Forged SteelItem Name
CrankshaftMolding Technics
Pressure ForgingHeat Treatment
NormalizingSurface Treatment
PolishingForging Tolerance
+/-0.5mmTechnics
Forging+MachiningColor
as Forging or as Per Customers' RequirementProcess
Hot Forging, Heat Treatment, CNC MachiningUnique
China Gold SupplierProcess Way
by Forging Machine and PressSurface Finish
PolishingShipping Port
Qingdao PortPlace of Origin
Shandong, ChinaLogo Printing
CustomizedMOQ
10-1000PCSTransport Package
Plywood BoxSpecification
SGS, ISO9001: 2008, ASTM, GB, DIN, EN124, CETrademark
ShengAoOrigin
Weifang, Shangdong, ChinaHS Code
87089910Production Capacity
50000PCS/MonthKey features
Customized Logo Printing: Logo printing is fully customized according to customer requirements.
Diverse Material Options: Available in carbon steel, alloy steel, stainless steel, cast iron, and aluminum alloy.
Comprehensive Surface Treatments: Offers electro zinc plating, hot deep zinc plating, powder coating, painting, and shot blasting.
Strict Quality Certifications: Certified with ISO9001:2015, TUV (PED 97/23/EC), and IATF 16949:2016.
Advanced Manufacturing Process: Utilizes precision forging, CNC machining, and heat treatment for high durability.
Rigorous Testing Procedures: Includes CMM measurement, spectral analysis, ultrasonic testing, and dynamic balancing.
Flexible MOQ for Partners: Standard MOQ is 10 pieces, with flexible options for long-term partnership projects.
Wide Application Scope: Suitable for excavators, tractors, boats, motorcycles, trucks, and agricultural machinery.
Company profile
Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.51h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryWeifang Shengao Machinery Co., Ltd. is a limited company focused on mechanical parts, hardware, metal tools, CNC machine tools, and related components. It identifies as a professional technical supplier and offers 3D software design and broad customization services, including sample-, design-, full-, minor-, and flexible customization. The supplier has written procedures and records for service assessment, corrective actions, and complaint handling. Its export sales share is stated at 71%–90%, with three years of export experience. However, the supplier has nine employees, only two years of total R&D engineer experience, no new products in the past year, no ODM, SDK, or overseas service infrastructure, and no stated customer cases. Audit information is provided for a TUV Rheinland audit with a validity period from September 4, 2025 to September 3, 2026, but the evaluation result is recorded as 0 and no certification name is specified.
Supplier typeThe supplier explicitly identifies as a professional technical supplier and a limited company. Its stated business and product scope covers mechanical parts, hardware products, metal tools, CNC machine tools, functional components, forgings, and powder metallurgy products; the audit record identifies mechanical parts as the primary product.
After-Sales capabilityThe supplier has clear written procedures and followed records for corrective and preventive actions and for handling customer complaints. This directly supports an established service-response process, although the slices do not provide service performance results or response-time data.
Production capacityThe supplier reports an annual production output range, six to ten quality-control staff, on-time delivery, random production quality inspection, and its own factory. It has nine total employees, so the available evidence supports an operating production capability, while capacity beyond the stated output range cannot be determined.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also welcomes OEM and ODM requests according to its company description. These repeated statements provide direct evidence of broad customization coverage, although the separate record states that ODM is not available, creating a conflict on ODM specifically.
Product Q&A
Q:What materials do you use for crankshaft manufacturing?
A:
We primarily manufacture crankshafts from: Forged Steel: 42CrMo, 40Cr, AISI 4340, EN19, SCM440 - for high-stress applications Cast Iron: Ductile iron (QT600-3, QT700-2), nodular iron - for cost-effective solutions Billet Steel: CNC-machined from premium alloy steel billets - for high-performance applications Special materials available upon request with proper certification
Q:What is your production capacity and lead time?
A:
Prototypes/Samples: 15-25 working days Small Batch Production (1-50 pcs): 30-45 working days Mass Production (50-500 pcs/month): 45-60 working days, with scheduled deliveries Maximum Monthly Capacity: 800-1,000 crankshafts (depending on size and complexity)
Q:Do you provide custom crankshaft manufacturing?
A:
Yes, we specialize in custom OEM crankshafts. We can produce according to: Your technical drawings (2D/3D) Existing sample (reverse engineering available) Specific engine parameters (stroke, journal diameters, counterweight design) International standards (ISO, DIN, JIS, SAE)
Q:What quality certifications do you have?
A:
We operate under: ISO 9001:2015 - Quality Management System IATF 16949:2016 - Automotive Quality Standards (for applicable projects) Material certifications: Mill Test Certificates (MTC) with traceability Process certifications: Heat treatment, welding, NDT personnel qualifications
Q:What testing and inspection procedures do you perform?
A:
Every crankshaft undergoes: Dimensional Inspection: CMM measurement, journal diameter/roundness, stroke accuracy Material Testing: Spectrometer analysis, tensile strength, hardness testing NDT (Non-Destructive Testing): Magnetic particle inspection, ultrasonic testing for internal defects Dynamic Balancing: High-precision balancing to G6.3 or better standards Surface Finish Check: Ra measurement for bearing surfaces
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