DU plates



 Premium DU Sliding Plates & Strips: High-Load Steel-Backed Self-Lubricating Solutions

Elevate your industrial machinery's durability with our DU Series Sliding Plates and Strips. While standard homogeneous metal plates require constant manual lubrication and are prone to surface galling, our DU series is engineered with a high-performance Steel-Backed PTFE composite. This advanced material matrix provides a maintenance-free, ultra-low friction interface that handles extreme loads while protecting your equipment's mating surfaces.


Why Choose DU Steel-Backed Sliding Plates?

The primary advantage of the DU series is its Rigid Structural Support combined with Self-Lubricating Technology. By utilizing a low-carbon steel foundation, these plates offer a more cost-effective yet exceptionally strong alternative to bronze-backed versions for standard industrial environments:

  • Maintenance-Free Dry Operation: Engineered specifically for dry running with an ultra-low coefficient of friction and minimal wear rate.
  • Exceptional Load Capacity: The low-carbon steel backing provides significantly higher load-carrying capacity and superior heat dissipation compared to non-reinforced polymer plates.
  • Active Surface Protection: During operation, the PTFE/Fibre layer creates a transfer film that coats the mating metal surface, forming a protective oxide-type solid lubricant film.
  • Environmental Stability: Exhibits high chemical resistance, minimal water absorption, and reduced swelling, ensuring precision clearances are maintained even in humid conditions.

Advanced Four-Layer Structural Engineering

Our DU plates are manufactured using a precision sintering process to ensure permanent bonding and thermal efficiency:

  1. PTFE/Fibre Mixture (0.01 ~ 0.03mm): The primary sliding layer that provides an excellent initial transfer film for smooth, lead-free operation.
  2. Sintered Bronze Powder (0.20 ~ 0.35mm): Acts as a high-strength reservoir for the PTFE mixture and provides maximum thermal conductivity to dissipate heat from the sliding surface.
  3. Low-Carbon Steel Backing: The structural core that delivers the necessary mechanical strength for heavy-duty industrial applications.
  4. Copper/Tin Plating (0.002mm): A precision-applied exterior coating that provides essential corrosion resistance for the steel backing.

DU Technical Data: Physical and Mechanical Properties

Technical Data: Physical and Mechanical Properties

Property

Value

Unit

Thermal Conductivity ()

40

W/mK

Maximum Operating Temperature (T)

280

°C

Minimum Operating Temperature (T)

-200

°C

Compressive Yield Strength (c)

350

N/mm^2

Maximum Static Load (P)

250

N/mm^2

Maximum Dynamic Load (P)

140

N/mm^2

Maximum Sliding Speed (V)

2.5

m/s

Maximum PV Factor (dry, continuous operation)

1.8

N/mm^2m/s

Maximum PV Factor (dry, intermittent operation)

3.5

N/mm^2m/s

Coefficient of friction (f)

0.02 - 0.25

-

Coefficient of friction (foil\ lubricated)

0.02 - 0.12

-

Usage Performance Ratings

Lubrication Type

Performance Rating

Dry

Good

Oil Lubricated

Good

Grease Lubricated

Fair

Water Lubricated

Fair

Process Fluid Lubricated

Fair

 


Typical Applications

DU sliding plates and strips are the global standard for "trouble-free" performance across diverse high-cycle industries:

  • Automotive & Construction: Earthmovers, graders, tractors, and specific components like disc brake calipers and shock absorbers.
  • Hydraulics & Valves: Critical wear elements for gear pumps, axial piston pumps, and butterfly valve trunnions.
  • Business & Office Automation: Durable sliding parts for photocopy machines, mail sorters, and computer peripheral equipment.
  • Industrial & Home Appliances: Air conditioners, sewing machines, textile equipment, and material handling systems.

Technical Specifications & Customization

Treatment / Type

Best For

Functional Benefit

Low-Carbon Steel

Maximum Load Support

Provides exceptionally high load carrying capacity and heat dissipation.

Sintered Bronze

Heat Management

Maximizes thermal conductivity away from the friction zone.

PTFE/Fibre Overlay

Dry-Running

Eliminates the need for grease while maintaining low wear and friction.

Copper/Tin Plating

Anti-Oxidation

Ensures long-term corrosion resistance for the steel substrate.

Plate/Strip Form

Linear Motion

Ideal for flat sliding guides, wear plates, and oscillating movements.

Expert Guidance & Technical Support

Selecting the correct backing material (Steel vs. Bronze) is critical for your application's success. While DU (Steel-Backed) offers maximum load capacity and cost-efficiency, the DUB (Bronze-Backed) version is preferred for anti-magnetic or highly corrosive environments. For specific load-bearing calculations or custom dimensions, our engineering team is ready to assist. Please submit your inquiry via our website contact form or email us at [email protected].

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