ZHEJIANG SUN STOCK CO., LTD.
ZHEJIANG SUN STOCK CO., LTD. manufactures crankshafts and related engine components, supported by established casting capability and long-term production experience.
Est. 1958258 CHENGDONG ROAD SHANGYU ZHEIJANG CHINA
ISO9002
About ZHEJIANG SUN STOCK CO., LTD.
ZHEJIANG SUN STOCK CO., LTD. traces its origins to an engine works established in 1958 and was reconstructed in 1997. Over decades of industrial accumulation, the company has built a comprehensive manufacturing base centered on crankshafts and supporting engine-related products.
The company reports annual production capacity of 600,000 crankshafts, along with 80,000 sets of small single-cylinder diesel engines, 10,000 sets of electric bikes, 500 sets of spraying machines, and 10,000 tons of casting output. It applies advanced nodular cast iron casting technology that was appraised by the Ministry of Mechanical Industry in 1993, supporting consistent process control and product quality.
With a dedicated technical team, specialized equipment, and an established quality assurance system, the company supplies products to well-known domestic engine manufacturers and has expanded into international markets. It was recognized as a state-class high technical enterprise under the Torch Project in 1997, included in Zhejiang’s “Small Type Giant” enterprise line in 1998, and obtained ISO9002 quality system certification in 1999.
Company Overview
Manufacturing Heritage
The business began in 1958 and was reconstructed in 1997, building long-term expertise in crankshaft manufacturing and related engine-industry production.
Company Milestones
Development Timeline
1958Company origin established
Operations began as an engine works, forming the foundation for long-term manufacturing capability.
1993Casting technology appraised
Advanced nodular cast iron casting technology was appraised and confirmed by the Ministry of Mechanical Industry as a key breakthrough for crankshaft production.
1997Reconstructed and recognized under Torch Project
The company was reconstructed and passed inspection for the state-class Torch Project, being listed as a state-class high technical enterprise.
1998Included in Zhejiang “Small Type Giant” line
Selected for cultivation and support under a Zhejiang People’s Government program.
1999ISO9002 certified
Obtained ISO9002 quality system certification.
Manufacturing Capacity
Annual Output Capacity
600,000pieces/yearCrankshafts
80,000sets/yearSmall single-cylinder diesel engines
10,000sets/yearElectric bikes
500sets/yearSpraying machines
10,000tons/yearCasting output
Products
Product Portfolio
CrankshaftsSmall single-cylinder diesel enginesElectric bikesSpraying machinesCastings
Technology & Capability
Nodular Cast Iron Casting
Advanced nodular cast iron casting technology supports stable process control for crankshaft production, with quality and manufacturing processes positioned to meet international-level expectations.
Quality & Management
Quality System
A structured quality assurance system is supported by technical expertise, dedicated equipment, and ongoing development capability for new products.
Markets & Customers
Domestic Supply and International Reach
The company supplies products to well-known domestic engine manufacturers and has expanded into international markets.
Recognition
Enterprise Honors
State-class high technical enterprise (Torch Project)Zhejiang “Small Type Giant” enterprise line
Contact Information
- Address
- 258 CHENGDONG ROAD SHANGYU ZHEIJANG CHINA
- Phone
- +86 575 8212 3456
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