What materials are used for the seals?

Materials include PTFE+Bronze, PTFE+Carbon, and Polyurethane (PU).

Hydraulic Piston Seals for Excavators

Name: Hydraulic Piston Seals for Excavators
Brand: Guangdong DEF Seals Solutions Co., Ltd.
SKU: 789551505

Guangdong, ChinaGuangdong DEF Seals Solutions Co., Ltd.

US$4.50

10-4,999 Pieces

US$0.30

5,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

PTFE+Bronze

Application

Cylinder

Model NO.

GSF

Type

Shaft Seal

Performance

Wear

Shape

O-Ring

Standard

Standard, Nonstandard

Style

O Ring

Shape (for Gasket)

Ring Gasket

Function

Shaft Sealing

Business Type

Manufactuer

Color

Brown,Green,Yellow,Black

Deliver Time

3-5 Working Days

Sample

Free

Transport Package

Plastic Film Inner& Outer Carton

Specification

ISO 9001, SGS

Trademark

DEF

Origin

Guangzhou, China

HS Code

39269010

Production Capacity

500k/Year

Key features

Versatile Material Options: Available in PTFE+Bronze, PU, and Carbon composites.

Customization Services: Offers full customization, minor customization, and sample-based design.

Fast Delivery for Stock Items: In-stock items delivered within 2 working days.

High Production Capacity: Monthly supply ability of 5,000,000 pieces.

ISO 9001 Certified Quality: Manufactured under ISO9001:2015 management system.

Low Friction Coefficient: Ensures easy assembly and smooth sliding performance.

Company profile

Management CertificationQuality AssuranceHigh Repeat Buyers ChoiceYears of Export Experience

Guangdong DEF Seals Solutions Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 21 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤0.43h

AI-Powered supplier vetting

SummaryDEF Seals Solutions is a sealing and mechanical-components supplier with stated production, sales, import/export, OEM, ODM, and broad customization capabilities. It holds ISO 9001:2015 certification and reports documented finished-product inspection, supplier-service procedures, and corrective/preventive-action processes. The supplier has five production lines, six to ten quality-control staff, twelve years of total R&D engineer experience, testing equipment, and more than 20 years of export experience. However, it reports no overseas warehouse, showroom, agent, or branch, and lists zero countries for overseas services. Financial credibility cannot be assessed because the provided financial fields are recorded as zero and contain no usable supporting context. Customer-specific cases are not identified.

Supplier typeThe supplier describes itself as a sealing maker serving construction machinery and large OEMs, while its stated scope covers mechanical components, seals, hydraulic components, machine tools, automation equipment, rubber and plastic parts, and related products. This supports classification as a manufacturer and supplier of industrial components with import/export capability.

CertificationsThe supplier explicitly reports an ISO 9001:2015 certificate and states that it received ISO 9001 certification to support quality products and services. This is direct evidence of a certified quality-management system.

After-Sales capabilityThe supplier reports no overseas warehouse, showroom, agent, or branch, and lists zero countries where overseas services are offered. It has participated in HANNOVER MESSE 2025 and provides stated quotation, payment, and lead-time terms, but the evidence does not establish a substantive after-sales service network.

R&D capabilityThe supplier reports new products during the past year, ODM service, twelve years of total R&D engineer experience, and testing equipment including temperature, salt-spray, and reciprocating testing machines. It also reports no available SDK, which limits evidence for software or SDK-based development, but does not negate the documented product-development capability.

Production capacityThe supplier reports five production lines, six to ten quality-control staff, documented and uniformly followed finished-product inspection instructions, written supplier-service procedures with records, and a stated annual output above the provided threshold. These data support established production and quality-control capacity.

Customization capabilityBoth records list customization from samples, full customization, customization from designs, minor customization, and flexible customization. The supplier also reports ODM availability, providing explicit evidence of broad customization and design-manufacturing support.