DEF Seals offers over 15 years of Hydraulic cylinders sealing and oilfield sealing experience. We work side-by-side with industries ranging from Exploration to Production. DEF Seals offers piston seals, rod seals, seal kits, wear components, and custom oilfield seals. If you have any problem, please send us email: sales1@defseals.com
3. Company profile
Guangdong DEF Seals Solutions Co., Ltd is a technology enterprise with R&D,
production and sales department, manufactures a wide range of hydraulic seals,
PTFE products applied to harsh conditions, special custom PU and rubber seals.
R&D Capability
With a workforce of 18 engineers, nine of which focus on R&D, we have received
18 national invention patents.
Production Capability
DEF owns two standardized plants up to 10,000 square meters each, in which
constant temperature/ humidity PTFE workshops are set up. Our production
equipments include imported vertical/horizontal CNC machine, 2000T oil
pressers, computer-controlled sintering furnace, PU casting machine, rubber
mixing machine, vulcanizing machine, etc. We produce custom PTFE/PU/rubber
seals with size from 2 mm to 1500mm.
4. Company profile
Quality Assurance
DEF has passed ISO9001:2015. With testing equipments including
tensile test machine, reciprocating test machine, temperature
chamber, ageing chamber, Multi-channel temperature detection, etc.,
we adopt high quality imported raw materials. And a full range of
materials are available. Our products passed third party inspection by
National Rubber Sealing Production Quality Supervision and
Inspection Center, Guangzhou Auto Parts Test Center, etc. And our
factory is approved by International Certification Authorities, such as
SGS, BV. And we are proud to own the titles of National High-Tech
Enterprise, Private Technology Enterprise of Guangdong and
Employee Satisfied Enterprise, etc.
Management
With computer management systems and MRP Management
Systems, we respond quickly to customer’s need.
5. DEF
Seals
Founded in 2000, engaged in the sales and technical services of seals
2003, we buy professional equipment for the design and production of seals
2004, DEF Seals got ISO9002 quality system certification
2005, DEF trademark registered successfully
From 2008 to 2010, the company obtained employee satisfaction
2009,obtained TUV and SGS certification
2009, won the national innovation fund award
2009, obtained three patents of sealing technology invention
2010, won the Guangdong private science and technology enterprise award
2011, passed the national high-tech certification
2012, obtained 15 invention and design patents of seals
Company’s history
2015, passed the national high-tech certification again
6. Company Chart
Chairman
Sales Dept
Domestic
Aboard
R&D Dept
Material
control Dept
Production
Dept
Purchase
Dept
Quality
control Dept
Finance Dept
Administrative
Dept
General
Manager
Sales Dept: 19 persons
R&D Dept: 18 persons
Material control Dept: 9 persons
Production Dept: 50 persons
Purchase: 4 persons
Quality control Dept: 6 persons
Finance Dept: 4 persons
Administrative Dept: 8 persons
9. Company's Certificate
Guangdong private science and
technology enterprises
Machine tools and hydraulic’s director
（2014-2015）
Employee satisfaction enterprises
（2008-2016）
Dongguan High-tech Industry
Association member
China Liquid & Gas Industry
Association Rubber & Plastics Member
Member of Wenzhou Pump and Valve
Industry Association
Audited Supplier Certificate by SGS
17. Features and needs
DEF Seals since 16 years the referred partner in
production of customized technical products in
PTFE.
Compression Molding-CNC machining with
latest updated technologies and most qualifying
homologations to serve worldwide markets.
Now we’re looking for the top supplier of PU
seals produced by Injection, to meet our end
user’s needs now.
19. Test report (PTFE,NBR)
Northwest Rubber Research
Institute Testing Center
DEF Seals are tested by domestic authoritative third-party testing
organizations, allowing customers to obtain greater quality and safety in
use.
Guangzhou Machinery Research
I Institute Testing Center
20. 1. Raw material
incoming
inspection report
2. Finished
product first
inspection
record
3. Process
inspection
record
4. Finished
product storage
and shipment
inspection report
Quality control
First inspection
Incoming inspection
Process inspection
Product testing
23. There are many offices in the first-tier cities across the country, and the agent network
is spread all over the country.
China service network
海南
黑龙江
吉林
辽宁
河北
山东
福建
江西
安徽
湖北
湖南
广东广西
上海
河南
山西
内蒙古
陕西
宁夏
甘肃
青海
四川
贵州
云南
西藏
新疆
江苏
浙江
北京
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