What materials are used for the seals?

The main material is PTFE with bronze or carbon, and O-rings can be NBR or FKM.

Do you provide OEM services?

Yes, we provide both OEM and ODM services with flexible customization options.

Premium PTFE Bronze Piston Seal Designed for Excavator Use

Name: Premium PTFE Bronze Piston Seal Designed for Excavator Use
Brand: Guangdong DEF Seals Solutions Co., Ltd.
SKU: 716467115

Guangdong, ChinaGuangdong DEF Seals Solutions Co., Ltd.

US$1.00

20-99 Pieces

US$0.50

100+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

PTFE

Application

Cylinder

Model NO.

GSF

Type

Shaft Seal

Performance

Corrosion

Shape

Piston Seal

Standard

Standard, Nonstandard, OEM Available

Size

80*69*4.2

Color

Green / Brown

Certificate

TUV, SGS

Style

Radial Seal

Shape (for Gasket)

Ring Gasket

Function

Hole Sealing

Transport Package

Insize Plastic Bag and Outer Size Carton

Specification

from 2 mm to 1500 mm are available

Trademark

DEF

Origin

Guangdong China

HS Code

39269090

Production Capacity

500.000PCS/Month

Key features

High-Performance Material: Made from virgin PTFE with bronze or carbon additives for superior durability.

High Pressure Resistance: Supports up to 60 MPa pressure for demanding hydraulic applications.

Versatile Fluid Compatibility: Compatible with mineral oils, water, air, and barely flammable fluids.

OEM and ODM Services: Full customization available including size, color, and design from samples.

Fast Delivery: Standard delivery in 5-7 working days; 2 days for in-stock items.

Low Friction Design: Easy assembly with low friction coefficient for smooth operation.

Certified Quality: ISO9001:2015 certified with SGS and TUV approvals.

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: ≤1.15h

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.