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Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal - Reliable Protection

Hebei Hankai Machinery Equipment Co., Ltd.
Website: https://www.hkaiseal.com
Email: admin@hkaseal.com
Phone: +86 18631957623
Address: Development Zone, Julu County, Xingtai City, Hebei Province

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Product Name: Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal
Product Link: Product Details Page
Product Introduction:
Wiper seals maintain sealing contact to the piston rod when the equipment is stationary (static, no reciprocating motion of rod) and in use (dynamic, reciprocating rod), whereas the tolerance for the rod diameter d is determined by the rod seal. Without a wiper seal, the retracting piston rod could transport contaminants into the cylinder.

Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal - Reliable Protection

Precision Profile

Explore the robust design and advanced dustproof features of the Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal.

Industrial Protection

Best-in-class wiper sealing to prevent ingress of contaminants in hydraulic cylinders in heavy-duty applications.

Material Excellence

Premium-grade materials ensure high durability, chemical resistance, and long service life.

Versatile Application

Ideal for mobile hydraulic, industrial, and machinery requiring enhanced dust protection and rod longevity.

    Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal is a critical component in maintaining the integrity of hydraulic systems—delivering both high sealing efficiency and superior dust exclusion to extend cylinder life, maximize operational uptime, and protect performance-critical assets.
  

Industry Trends and Market Dynamics

The hydraulic seal sector is witnessing rapid growth due to technological advancements, the proliferation of intelligent industrial equipment, and increasing demand for high-performance machine reliability.

Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal exemplifies these trends with its sophisticated profile, tight-tolerance fit, and adoption across top industrial OEMs.
Current industry analyses from Sealing Technology Forum highlight a surge in customized wiper profiles, improved surface finishes, and advanced polymers for extreme environments.

Global market data (2024) demonstrates a compounded annual growth rate (CAGR) of 5.4% in the hydraulic seal segment, with dustproof wipers being especially vital for hydraulic presses, construction machinery, and automation.

Technical Parameter Table—Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal

Property	Specification	Test Standard	Industry Range
Profile	DKBZ	GB/T 3452	DKB/ DKBZ/ DKI
Inner Diameter (d1)	65 mm	ISO 6194	10~250 mm
Outer Diameter (d2)	79 mm	ISO 6194	30~300 mm
Width (B1/B2)	8 mm / 11 mm	GB/T 3452	2~30 mm
Material	Polyurethane (PU) + Steel Insert	DIN 53521	PU/NBR/FKM+Steel
Temperature Range	-35°C to +110°C	DIN 53508	-40°C to +120°C
Hardness	92-95 Shore A	ASTM D2240	85-95 Shore A
Max. Speed	1.0 m/s	ISO 6194-4	0.5~2.0 m/s
Pressure Resistance	Up to 0.5 MPa (with rod seal)	ISO 6194-1	0.1~1 MPa
Chemical Resistance	Hydraulic oils, mineral oils, water	ISO 1817	Oils, water, light chemicals
Color	Blue/Yellow/Black (on request)	/	Blue, Yellow, Black

Technology Visualization and Trend Chart

Material Hardness vs Temperature Tolerance

Global Market Share by Wiper Seal Types (2023)

Dimensional Comparison: DKBZ vs Similar Types

Technical Parameter Evolution (2016-2024)

Applications and Use Cases

Hydraulic Cylinders — Industrial, agricultural, and mobile hydraulics.
Construction Machinery — Excavators, bulldozers, loaders where dust ingress protection is vital.
Injection Molding Machines — Safeguarding sensitive guide rods and actuators.
Steel Mills & Foundries — High-dust and abrasive particle exclusion in extreme environments.
Automated Equipment — For prolonging service interval and reliability.
Marine & Offshore — Moisture and salt spray resistance on actuators & pistons.

Professional FAQ: Wiper Seal Expertise

Technical FAQ for Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal

1. What material is used for the DKBZ wiper and why?

Typically high-performance Polyurethane (PU) reinforced with a steel insert, combining elasticity, abrasion resistance, and dimensional stability. PU ensures excellent wear resistance and flexibility across temperature fluctuations (Source: Sealing Technology Forum).

2. What is the recommended installation tolerance?

Installation should adhere to ISO 6194 rod seal groove dimensions: rod diameter (d1) tolerance H11, groove width (B1/B2) tolerance ±0.2-0.5mm. Proper lubrication prevents abrasion during installation.

3. How does DKBZ compare to DKI/DKB?

DKBZ profiles feature a double-lip and enhanced scrapping edge for superior particle exclusion, while DKI is single lip and DKB varies in edge design. DKBZ excels in industrial heavy-dust applications.

4. What is the service temperature range for the DKBZ oil seal?

Standard operation from -35°C to +110°C. For extreme environments, custom blends extend this range but should be validated for specific fluid media.

5. Which hydraulic fluids are compatible?

PU DKBZ wipers are compatible with mineral oils, HFA/HFB fluids, and lighter synthetic oils. For aggressive media (esters, water glycols), consult the manufacturer or request a material test.

6. What is the maximum operating pressure for DKBZ dust wipers?

Wipers are typically not designed as pressure seals, but can resist backpressure up to 0.5 MPa in conjunction with the main rod seal (per Hydraulics & Pneumatics Journal).

7. What maintenance intervals are recommended?

Inspect regularly every 6-12 months based on equipment cycle intervals; harsh environments may require shorter intervals and regular wiper replacement for optimal protection.

EEAT: Professionalism, Authority, and Trust Credibility

Hebei Hankai Machinery Equipment Co., Ltd. is a globally recognized manufacturer, with production and technical validation following ISO, DIN, and GB/T standards. All Standard Hydraulic Dustproof Wiper 65×79×8/11 DKBZ Oil Seal products are tested for conformity, and customer case studies are available upon request.
Cited by MDPI Machines Journal: “Advanced sealing technologies, including dustproof wipers such as DKBZ profiles, directly contribute to the reduction of maintenance costs and extension of machinery service intervals (MDPI Paper 702).”
As members of the European Sealing Association (ESA), Hankai ensures all technical support reflects the best current practices, documented by decades of field performance and laboratory testing.

References and Further Reading: