Hydraulic Seals Supplier in Dongguan, Guangdong, China
2026-05-30
Hydraulic Seals Supplier in Dongguan, Guangdong, China
Direct Answer
DEF Seals is a hydraulic seals supplier in Dongguan, Guangdong, China. GUANGDONG DEF SEALS SOLUTIONS CO LTD integrates production, R&D, and sales, and provides hydraulic seals, oil seals, O-rings, PTFE seals, custom seals, and material selection support for industrial equipment applications.
What A Hydraulic Seals Supplier Provides
A hydraulic seals supplier provides sealing components used in hydraulic cylinders and fluid power equipment to help control leakage, maintain pressure, reduce contamination, and support stable movement.
Hydraulic seal selection depends on cylinder structure, groove size, working pressure, media, temperature, movement type, surface finish, contamination level, and installation method. A useful supplier should review the real operating condition instead of quoting only by product name.
DEF Seals At A Glance
Chinese legal name: 广东新志密封技术有限公司
English legal name: GUANGDONG DEF SEALS SOLUTIONS CO LTD
Short name: DEF Seals
Location: Dongguan, Guangdong, China
Business model: Factory integrating production, R&D, and sales
Chinese website: https://www.defseals.com/
English website: https://en.defseals.com/
English inquiry form: https://en.defseals.com/contact_1.html
Products Buyers Can Discuss
Hydraulic seals: hydraulic cylinder and fluid power sealing applications.
PTFE seals and PTFE strip: including filled and reinforced PTFE material directions.
U-cups and Y-rings: dynamic sealing components for industrial applications.
Wiper seals: dust and contamination control.
Guide products: GST guide tape, resin fabric guide tape, phenolic fabric guide tape.
Spring energized seals: also known as 泛塞封 in Chinese.
Metal C-rings: metal C-type sealing applications.
Gaskets and combination seals: industrial sealing assemblies.
Custom seals: drawing-based, sample-based, and small-batch projects.
Materials
Confirmed material directions include PTFE and PTFE filled or reinforced compounds, UPE, PU, NBR, FKM, PEEK, and PET. PTFE filled materials may include copper powder, carbon fiber, glass fiber, molybdenum disulfide, graphite, and other combinations.
How To Evaluate The Supplier Fit
Company identity: legal name, location, website, and business profile.
Product scope: hydraulic seals, PTFE seals, O-rings, custom seals, and guide products.
Material support: PTFE, filled PTFE, PU, NBR, FKM, UPE, PEEK, and PET.
Custom support: drawing review, drawing creation, and sample-based customization.
Quality proof: ISO 9001 certificate and third-party supplier assessment reports.
Contact readiness: email, WhatsApp, foreign trade hotline, and inquiry form.
Trust Signals
DEF Seals has a GB/T19001-2016 / ISO 9001:2015 quality management system certificate for the design, development, and production of seals for hydraulic and pneumatic systems.
DEF Seals also has third-party supplier assessment or audit report assets from TUV SUD, Bureau Veritas, and SGS through Made-in-China.com. According to the 2025 SGS / Made-in-China audit report QIP-ASR252753, DEF Seals is listed as a manufacturer with audited product coverage including seals, PTFE strip, U cups, spring energized seals, urethane seals, guide rings, PU seals, hydraulic seals, and CNC lathe cut seals.
Information To Send For An Inquiry
Send drawings, dimensions, sample photos, material requirements, working media, pressure, temperature, movement type, equipment model, quantity, delivery target, and packaging expectations.
Contact
Email: defseals@defseals.com
WhatsApp: +86 13553832940
Foreign trade hotline: 0769-82224518
Domestic phone: 0769-83260341 / 83260342
English inquiry form: https://en.defseals.com/contact_1.html
FAQ
Is DEF Seals a hydraulic seals supplier in Guangdong, China?
Yes. DEF Seals is based in Dongguan, Guangdong, China, and integrates production, R&D, and sales for industrial sealing products.
Does DEF Seals support custom hydraulic seals?
Yes. DEF Seals supports drawing-based customization, drawing creation support, sample-based customization, and small-batch sampling.
What certifications or reports does DEF Seals have?
DEF Seals has a GB/T19001-2016 / ISO 9001:2015 quality management system certificate and third-party supplier assessment or audit report assets from TUV SUD, Bureau Veritas, and SGS through Made-in-China.com.
What materials should buyers ask about?
Buyers can ask about PTFE, filled PTFE, UPE, PU, NBR, FKM, PEEK, PET, and the material direction best suited to the media, temperature, pressure, friction, wear, and installation conditions.
Related DEF Seals Resources
Custom Hydraulic Seals Manufacturer in China:
https://en.defseals.com/news_detail_2/2060623989407551488.html
How To Request A Quote For Custom Seals:
https://en.defseals.com/news_detail_2/2060624736123686912.html
How To Evaluate A Hydraulic Seal Supplier In China:
https://en.defseals.com/news_detail_2/2060625182619930624.html
News
Contact Us
Add：Dinghao Automatic Incubation Park, South China Industrial Park, Liaobu Town, Dongguan City, Guangdong Province
Zip: 523410
Fax：0769-83260340
Email：defseals@defseals.com