How long does it take to ship goods by sea?

It takes about 5 weeks to European ports plus 1 week customs clearance (6-7 weeks total). It takes about 2 weeks to the US east coast and 3 weeks to the west coast. All sea goods are shipped from Qingdao/Shanghai/Ningbo Port.

How long does it take to ship goods by air?

It takes about 7 days to all major destinations.

What are the payment terms?

Payment terms are negotiable. We prefer a 30% deposit and the balance by T/T before delivery. For initial stages, we request 50% of the tooling fee in advance with the balance payable on acceptance of samples.

Which countries do you export to?

We mainly export to the U.S.A, Germany, France, Italy, UK, Brazil, Sweden, Japan, Korea, Middle East of Asia, Thailand, and so on.

Can we visit the factory to conduct an audit?

Yes, you are welcome to visit our factory. All parts are made according to customer's drawings or samples. Please send your drawings/samples for accurate pricing.

OEM Forged Bicycle Crank Arm Mountain Bicycle Crankset Crank

Name: OEM Forged Bicycle Crank Arm Mountain Bicycle Crankset Crank
Brand: Weifang Shengao Machinery Co., Ltd.
SKU: 761400652

Shandong, ChinaWeifang Shengao Machinery Co., Ltd.

US$1.70-3.19

100 Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

as Per Specification

Warranty

6 Months

Model NO.

WF-JF

Condition

New

Certification

CE, BSCI, EEC, ISO9001

Customized

Application

Kids Bike, Road Bike, Mountain Bike, Ordinary Bicycle

Chainwheel Teeth

24-32T

Material

Alloy

Item

Bicycle Crank

Raw Material

Aluminum, Steel

Size

as Your Requirement

Techincs

Forging, Machining

Brand Name

Shengao,OEM

Standard or Nonstandard

Nonstandard

Factory

Over 15 Years Experience in Producing

Logo

Customized

Quality Control

100% Inspected

Price Range

1~10USD/PCS

OEM Service

Yes

Custom Made

Yes

Logo Printing

Customized

MOQ

10-100PCS

Free Sample

Yes

Transport Package

Plywood Box

Specification

As your requirement

Trademark

Shengao

Origin

Weifang City, Shandong Province, China

HS Code

87089910

Production Capacity

50000PCS/Month

Key features

Premium Forged Material: Crafted from high-grade 6061-T6 aluminum alloy using precision hot forging for superior strength and durability.

Custom OEM Service: Full customization available including logo, size, and design with NDA protection for customer confidentiality.

Optimized Performance: Designed for optimal power transfer, high stiffness-to-weight ratio, and improved acceleration and climbing efficiency.

Strict Quality Control: 100% inspected using 3D/2D instruments and hardness testers with detection accuracy up to 0.001mm.

Wide Compatibility: Supports various spindle standards (Square Taper, Hollowtech, etc.) and chainring configurations (1x, 2x, 3x).

Corrosion Resistant Finish: Treated with high-quality anodized or shot-peened finish to resist scratches, wear, and corrosion.

Certified Manufacturer: Produced in ISO9001:2015 certified factory with CE, BSCI, EEC, and ISO9001 certifications.

Flexible MOQ: Low minimum order quantity of 10-100 pieces, suitable for small batches and sample testing.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Weifang Shengao Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.82h 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:Are you a genuine manufacturer?

Yes, all products are produced in our ISO9001:2015 certified factory. We are also a company registered by China Customs with the right to export and import.

Q:Can we sign an NDA to keep our design confidential?

Sure, protecting customers' profit is our obligatory responsibility. A signed NDA would be valid to both of us.

Q:What information is needed to get a quotation?

Please provide detailed information such as drawings (2D/3D via Pro/E, Auto CAD, SolidWorks, UG, etc.), materials, surface treatment, quantity, package, and any special requirements like tolerance.

Q:How long does it take to receive samples?

It takes 20 working days. The lead time is the general production period and does not include transportation time. We can supply free samples with less quantity, but customers need to pay shipping costs.

Q:What is the manufacturing lead time for mass production?

Mass production takes 30-45 working days after sample approval. The lead time is the general production period without transportation time. We can make special arrangements for urgent needs.