COMPANY PROFILE
Yantai Shuangyuan General Parts Co., Ltd (SYS) is a private enterprise established in 2007 and specialized in producing casting alloy floating seals. Located in Yaitai, Shandong province, SYS is 100 Km away from Yantai Penglai Airport and 180 Km away from Qingdao port. SYS covers a floor area of 40000 m2 and a building area of 20000 m2 with the total assets of USD 20 million. The total number of employees of SYS is more than 300, about 30 percent of which are engineering technicians.
As one of the most professional floating seals manufacturers in China, SYS takes the pursue of “high starting point, high technology, high quality, and high speed” as the developing principle, aims at the goal of “seeking the best instead of the largest”, digests and absorbs advanced foreign technologies, independently and successfully develops advanced manufacturing techniques and equipment, all of which occupy leading positions in China, and fast seizes high-end and mid-end markets at home and abroad by relying on the most competitive quality and cost advantages. SYS’s floating seals are widely applied to construction machinery, mining machinery, sand conditioning equipment, concrete and cement mixer, gear reducers etc.
COMPANY GROWTH HISTORY:
2007
Established
2008
ISO 9001:2002 Certification
2009
Partnership with SHANTUI and ITM
2010
Partnership with BERCO
2011
Partnership with BONFIGLIOLI
2013
Partnership with BOSCH
2014
Partnership with PMP
2015
Partnership with ITR
2016
Partnership with Jisung TEC
2017
Second plant Established – Partnership with NABTESCO
2018
CEP became the OEM supplier of LIEBHERR for Floating Seal Groups
2019
CEP became the OEM supplier of TRELLEBORG for Floating Seal Groups
2020
CEP became the OEM supplier of SANYI for Floating Seal Groups
COMPANY PROFILE
Yantai Shuangyuan General Parts Co., Ltd (SYS) is a private enterprise established in 2007 and specialized in producing casting alloy floating seals. Located in Yaitai, Shandong province, SYS is 100 Km away from Yantai Penglai Airport and 180 Km away from Qingdao port. SYS covers a floor area of 40000 m2 and a building area of 20000 m2 with the total assets of USD 20 million. The total number of employees of SYS is more than 300, about 30 percent of which are engineering technicians.
As one of the most professional floating seals manufacturers in China, SYS takes the pursue of “high starting point, high technology, high quality, and high speed” as the developing principle, aims at the goal of “seeking the best instead of the largest”, digests and absorbs advanced foreign technologies, independently and successfully develops advanced manufacturing techniques and equipment, all of which occupy leading positions in China, and fast seizes high-end and mid-end markets at home and abroad by relying on the most competitive quality and cost advantages. SYS’s floating seals are widely applied to construction machinery, mining machinery, sand conditioning equipment, concrete and cement mixer, gear reducers etc.
COMPANY GROWTH HISTORY
MANUFACTURING
SYS has a perfect manufacturing system integrating casting, rough machining, heat-treating, grinding and lapping into a whole. All raw materials are subject to strict inspection, and all production processes are rigidly executed according to the technological requirements. Our major manufacturing facilities include resin-coated sand moulding lines, CNC lathes, automatic temperature control furnaces for heat treatment, precision lapping machines etc.
QUALITY CONTROL
SYS strictly executes the ISO/9001 quality management system. Six Sigma quality management idea and advanced inspection equipment realize the international first-rate product quality. SYS’ s major inspection equipment include direct reading spectrometer, digital metallurgical microscope, digital hardness tester, surface roughness measuring instruments, image measuring instruments, etc.
PRODUCTS
Technical Specifications
Material: FC15Cr3Mo
Element |
Standard % |
|---|---|
| C | 3.20-3.60 |
| Si | 1.1-1.6 |
| Mn | 0.5-1.0 |
| P | <0.20 |
| S | <0.10 |
| Cr | 14-16 |
| Mo | 2.0-4.0 |
| Ni | 1.0-2.0 |
Grinding Area Roughness: Ra 0.2
Lapping Area Roughness: Ra 0.07
Lapping Area Flatness: 3 um
Microstructure: Martensite and Carbides
Hardness after Heat Treatment: HRC 65-72 
Operating Conditions
| Temperature | -45 ° C to +115 ° C |
| Maximum Rubbing Speed | Up to 150 mpm* |
| Internal Operating Pressure | 240 to 345 KPa* |
Where continuous operation is required, speeds may be limited to 107 mpm and pressure maximum to 240 KPa.
NBR |
LT NBR |
HNBR |
SilicoN |
Viton |
|
|---|---|---|---|---|---|
| Low T Limit | -25° C | -45° C | -40° C | -55° | -10° |
| Hight T Limit | +110° C | +115° C | +135° C | +165° | +180° |
| Tensile Strenghth | Good | Good | Good | Poor | Good |
| Abrasion Resistance | Excellent | Excellent | Excellent | Poor | Good |
| Oil Resistance | Excellent | Excellent | Excellent | Poor | Excellent |
| Cost | Low | Low | Medium | Medium | High |
PRODUCTS
Technical Specifications
Material: FC15Cr3Mo
Element |
Standard % |
|---|---|
| C | 3.20-3.60 |
| Si | 1.1-1.6 |
| Mn | 0.5-1.0 |
| P | <0.20 |
| S | <0.10 |
| Cr | 14-16 |
| Mo | 2.0-4.0 |
| Ni | 1.0-2.0 |
Grinding Area Roughness: Ra 0.2
Lapping Area Roughness: Ra 0.07
Lapping Area Flatness: 3 um
Microstructure: Martensite and Carbides
Hardness after Heat Treatment: HRC 65-72
Operating Conditions
| Temperature | -45 ° C to +115 ° C |
| Maximum Rubbing Speed | Up to 150 mpm* |
| Internal Operating Pressure | 240 to 345 KPa* |
Where continuous operation is required, speeds may be limited to 107 mpm and pressure maximum to 240 KPa.
SYS serves many well-known OEM enterprises at home and abroad while exporting to the aftermarket of Germany, France, Italy, Turkey, India, Australia, Brazil, Argentina, America, Canada, etc.
Add:North of No. 2 Road, East Industrial Park,
Taocun Qixia, Yantai 265300 China.
Tel: +86-535-3570800
Fax: +86-535-3570803
E-mail: sales@cep-intl.com
Internet: www.ytsyseal.com
