Home / Waterjet Seals & Seal Kits

Waterjet Seals & Seal Kits

Waterjet seals and seal kits are critical components that directly affect the pressure stability, leakage prevention, and service life of high-pressure waterjet systems. At KAD, we focus on precision manufacturing, material selection, and strict quality control to provide reliable sealing solutions for intensifier pumps, hydraulic systems, and cutting equipment.

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    Strict Quality Control Process

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    OEM & Customized Solutions

Full-Range Genuine & OEM Parts Supply

Waterjet sealing systems include multiple sealing components designed to maintain pressure integrity and protect internal moving parts. Different sealing positions require different materials, structures, and performance characteristics to match specific working conditions.

HP Seal Kit

High-pressure seals are installed in critical pressure areas of intensifier systems. They are designed to withstand repeated pressure cycles while maintaining sealing performance.

Low Pressure Seal

Low-pressure hydraulic sealing components prevent oil leakage and contamination, ensuring clean, stable hydraulic circulation and protecting internal parts.

Check Valve Seal

Professional check valve sealing parts ensure tight one-way sealing, prevent backflow and pressure loss, and maintain stable pipeline pressure.

Water Switch Seal

Key sealing accessories for waterjet switches, providing reliable compression, waterproof sealing, and precise water path control without leakage.

Why Choose KAD Waterjet Seals

Reliable Sealing Performance

KAD seals are designed to maintain stable sealing performance under high-pressure and repeated working cycles.

Material Selection Capability

Different sealing materials are selected according to pressure, temperature, and application requirements.

Complete Maintenance Solutions

From individual seals to complete repair kits, KAD provides flexible supply options.

Consistent Quality Control

Strict inspection ensures stable dimensions and reliable performance across repeated orders.

Precision Control & Tolerance Capability

Waterjet seals require accurate dimensions and consistent material properties to ensure proper compression, sealing contact, and long-term reliability.
Component / Inspection Item Inspection Method Typical Tolerance / Accuracy Purpose
Seal Outer Diameter Precision dimensional measurement ±0.02mm Ensures proper installation fit
Seal Inner Diameter Micrometer inspection ±0.01mm ~ ±0.02mm Maintains sealing contact accuracy
Seal Thickness Thickness measurement ±0.01mm Controls compression performance
Seal Groove Dimension CMM inspection ±0.01mm Ensures correct positioning inside assembly
Backup Ring Dimension Dimensional inspection ±0.02mm Prevents extrusion under pressure
Material Hardness Hardness testing Controlled according to material specification Ensures wear resistance and durability
Surface Quality Visual and surface inspection Smooth sealing surface requirement Reduces friction and leakage risk
Assembly Compatibility Functional verification According to customer drawings Ensures proper installation
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The above tolerance values represent typical manufacturing capability under controlled production conditions. Actual tolerance requirements may vary depending on component design, material characteristics, structural complexity, and customer specifications. contact us

Raw Materials

KAD selects sealing materials according to working pressure, movement conditions, chemical environment, and service requirements.
Sealing Materials
  • PEEK
  • PTFE
Metal Hardware
  • Aluminum 6061
  • Aluminum A5052
  • A1100
  • Aluminum Alloy 2A12
  • Brass
  • Copper(CU)
  • Magnesium Alloy
  • Zinc Alloy (Zn)
  • Aluminum 3003
  • Aluminum A5056
  • A2017
  • Copper Alloy C3604
  • Aluminum Alloy 5000
  • AL1070
  • Aluminum Alloy AL2024 / A2024-T6
  • Aluminum Alloys AL7075 / 7050 / 7451
  • Imported Aluminum Alloy 5083
  • Imported Aluminum Alloy 6082
  • Imported Aluminum Alloy 7075
  • Imported Aluminum Alloy 6061-T561
  • AL1060
  • C2801P-1/2H
  • C1020P
  • A7072
  • A7000
  • C1100
  • A2014
  • Aluminum Alloy 7000
  • Titanium Alloy
  • 7075
  • A2011
  • A2024
  • A7050
  • 11SMn30
  • PEEK

PEEK

PEEK is a high-performance thermoplastic with exceptional strength, chemical resistance, and heat resistance. It is ideal for demanding applications in aerospace, medical, and electronics.

Density:

1.4 g/cm³

Chemical Resistance:

Excellent

  • PTFE

PTFE

PTFE, commonly known as Teflon, is a high-performance fluoropolymer with excellent chemical resistance, low friction, and high temperature stability. Widely used in chemical, electrical, and sealing applications.

Density:

2.3 g/cm³

Chemical Resistance:

Excellent

  • Aluminum 6061

Aluminum 6061

Aluminum 6061 is a versatile, lightweight alloy known for good mechanical properties, corrosion resistance, and excellent weldability. It is widely used in structural components, aerospace, automotive, and general engineering.

Density:

2.8 g/cm³

  • Aluminum A5052

Aluminum A5052

Aluminum A5052 is a corrosion-resistant alloy with good weldability and moderate to high strength. It is widely used in marine, automotive, and general industrial applications.

Density:

2.8 g/cm³

Price:

approx. $ 2.98/kg

  • A1100

A1100

A1100 is commercially pure aluminum (99%+ purity) with excellent corrosion resistance, workability, and thermal conductivity. It is soft, ductile, and non-heat-treatable. Widely used in chemical equipment, roofing, cooking utensils, and decorative parts.

  • Aluminum Alloy 2A12

Aluminum Alloy 2A12

2A12 is a high-strength aluminum-copper alloy commonly used in aerospace and high-load structural applications. It offers excellent fatigue resistance and good machining performance but has relatively low corrosion resistance, so surface treatment is often required.

  • Brass

Brass

Brass is a copper-zinc alloy known for its good mechanical properties, excellent corrosion resistance, and attractive golden color. It is widely used in decorative fittings, electrical components, plumbing, and precision machined parts.

Density:

8.9 g/cm³

  • Copper(CU)

Copper(CU)

Copper (CU) is a highly conductive metal with excellent corrosion resistance. Its common alloys include Brass (copper-zinc), Bronze (copper-tin), and Pure Copper (red copper). These materials are widely used in electrical, mechanical, and decorative applications.

Color:

Brass/Bronze/Copper

Density:

8.9 g/cm³

  • Magnesium Alloy

Magnesium Alloy

Magnesium alloy is a lightweight metal alloy known for its high strength-to-weight ratio, excellent machinability, and good vibration damping. It is widely used in aerospace, automotive, and electronics industries where weight reduction is critical.

Density:

1.9 g/cm³

  • Zinc Alloy (Zn)

Zinc Alloy (Zn)

Zinc alloy is a versatile metal alloy known for its good strength, excellent castability, and corrosion resistance. It is widely used in die casting for automotive parts, hardware fittings, and decorative items.

Density:

6.8 g/cm³

  • Aluminum 3003

Aluminum 3003

Aluminum 3003 is a commercially pure aluminum alloy with manganese as the primary alloying element. It offers good corrosion resistance, excellent workability, and moderate strength. It is commonly used in roofing, siding, and cookware applications.

  • Aluminum A5056

Aluminum A5056

Aluminum A5056 is a high magnesium-content alloy known for excellent corrosion resistance, especially in marine environments. It offers good weldability and moderate strength, widely used in shipbuilding, marine hardware, and chemical equipment.

Density:

2.8 g/cm³

  • A2017

A2017

A2017 is a high-strength aluminum-copper alloy known for excellent machinability and good mechanical properties. It is commonly used in aerospace, transportation, and precision machinery. Corrosion resistance is moderate, often requiring surface treatment.

Density:

2.8 g/cm³

  • Copper Alloy C3604

Copper Alloy C3604

C3604, also known as free-machining brass, is a copper-zinc alloy with excellent machinability, good corrosion resistance, and attractive golden color. It is widely used in precision machining parts, electrical connectors, and plumbing fittings.

Density:

8.9 g/cm³

  • Aluminum Alloy 5000

Aluminum Alloy 5000

The 5000 series aluminum alloys are magnesium-based alloys known for excellent corrosion resistance, good weldability, and moderate to high strength. They are widely used in marine, automotive, and structural applications.

  • AL1070

AL1070

AL1070 is a commercially pure aluminum with very high electrical and thermal conductivity, excellent corrosion resistance, and good workability. It is commonly used in electrical conductors, heat exchangers, and chemical equipment.

  • Aluminum Alloy AL2024 / A2024-T6

Aluminum Alloy AL2024 / A2024-T6

AL2024 is a high-strength aluminum-copper alloy widely used in aerospace and structural applications. The T6 temper means it is solution heat-treated and artificially aged to achieve high mechanical strength. It offers excellent fatigue resistance but moderate corrosion resistance, so surface protection is usually necessary.

  • Aluminum Alloys AL7075 / 7050 / 7451

Aluminum Alloys AL7075 / 7050 / 7451

AL7075, 7050, and 7451 are high-strength aluminum-zinc-magnesium-copper alloys widely used in aerospace, military, and high-performance structural applications. They offer excellent strength, good fatigue resistance, and moderate corrosion resistance, often requiring surface treatments.

Density:

2.8 g/cm³

  • Imported Aluminum Alloy 5083

Imported Aluminum Alloy 5083

5083 is a non-heat-treatable aluminum-magnesium alloy known for exceptional corrosion resistance, especially in marine environments. It has good weldability and moderate-to-high strength, making it ideal for shipbuilding, transportation, and structural applications. Imported 5083 typically meets international quality standards ensuring high reliability.

  • Imported Aluminum Alloy 6082

Imported Aluminum Alloy 6082

6082 is a medium-strength heat-treatable aluminum-magnesium-silicon alloy, widely used in structural and engineering applications. It offers good corrosion resistance, excellent weldability, and good machinability. Imported 6082 generally meets strict international standards for quality and performance.

  • Imported Aluminum Alloy 7075

Imported Aluminum Alloy 7075

7075 is a high-strength aluminum-zinc-magnesium-copper alloy widely used in aerospace, military, and high-performance applications. It offers excellent mechanical properties and good fatigue resistance but moderate corrosion resistance, often requiring surface treatments. Imported 7075 typically meets stringent international quality standards.

  • Imported Aluminum Alloy 6061-T561

Imported Aluminum Alloy 6061-T561

6061-T561 is a heat-treated aluminum-magnesium-silicon alloy known for good mechanical strength, excellent corrosion resistance, and very good machinability. The T561 temper indicates it has been solution heat-treated, stress relieved by stretching, and artificially aged. It is widely used in structural parts, automotive, and precision components. Imported material meets strict international standards for quality and consistency.

  • AL1060

AL1060

AL1060 is a commercially pure aluminum alloy with an aluminum content of about 99.6%. It has excellent electrical and thermal conductivity, outstanding corrosion resistance, and very good formability. Commonly used in electrical conductors, chemical equipment, and sheet metal parts.

  • C2801P-1/2H

C2801P-1/2H

C2801P is a brass alloy with around 60% copper and 40% zinc, known as "Muntz metal" or alpha-beta brass. The “1/2H” indicates half-hard temper, giving it moderate strength with better formability compared to full hard. It offers good corrosion resistance, good cold workability, and is commonly used for architectural trim, hardware, and decorative parts.

  • C1020P

C1020P

C1020P is a high-purity oxygen-free copper (OFC) with excellent electrical and thermal conductivity, outstanding ductility, and good corrosion resistance. It is widely used in electrical applications, electronic components, and vacuum devices where high conductivity and cleanliness are critical.

  • A7072

A7072

A7072 is an aluminum alloy mainly alloyed with zinc (around 1%) and designed primarily for cladding on heat exchanger tubes and other applications that require good corrosion resistance. It has excellent corrosion resistance, good formability, and is often used as a cladding layer on high-strength core alloys (like 3003 or 7075) to enhance corrosion protection.

Density:

2.8

  • A7000

A7000

The A7000 series refers to high-strength aluminum-zinc-magnesium-copper alloys. Known for excellent mechanical strength and good fatigue resistance, they are widely used in aerospace, military, and high-performance engineering applications. Typical grades include 7005, 7050, 7075, and 7049. While strength is very high, corrosion resistance is moderate, so surface treatments are usually applied.

Density:

2.8

  • C1100

C1100

C1100 is a commercially pure copper (also known as electrolytic tough pitch copper, ETP) with very high electrical and thermal conductivity, excellent ductility, and good corrosion resistance. It is widely used in electrical conductors, bus bars, wiring, and heat exchangers.

Density:

8.9

  • A2014

A2014

A2014 is a high-strength aluminum-copper alloy known for excellent machinability, good mechanical properties, and fair corrosion resistance. It is often used in aerospace parts, heavy-duty forgings, and precision components requiring high strength and good wear resistance.

Density:

2.8 g/cm³

  • Aluminum Alloy 7000

Aluminum Alloy 7000

The 7000 series aluminum alloys are zinc-based, high-strength alloys with excellent mechanical properties and fatigue resistance, widely used in aerospace, military, and high-performance structural applications. Typical grades include 7075, 7050, and 7005. Corrosion resistance is moderate, so they often require surface treatments.

Density:

2.8 g/cm³

  • Titanium Alloy

Titanium Alloy

Titanium alloys are known for their high strength-to-weight ratio, excellent corrosion resistance, and good biocompatibility. They are widely used in aerospace, medical implants, chemical processing, and high-performance engineering applications. Despite being lightweight (density about 4.6 g/cm³), titanium alloys offer superior mechanical properties and resistance to extreme environments.

Density:

4.6

  • 7075

7075

7075 is a high-strength aluminum-zinc-magnesium-copper alloy, widely used in aerospace, military, and high-performance engineering parts. It features excellent mechanical strength and fatigue resistance, with moderate corrosion resistance—so it’s often treated with anodizing or coatings.

  • A2011

A2011

A2011 is a free-machining aluminum-copper alloy known for excellent machinability and good mechanical strength. It is often used for high-speed automatic lathes, precision turned parts, and screw machine products. It offers fair corrosion resistance and is typically used where complex shapes and fast production are required.

Density:

2.8 g/cm³

  • A2024

A2024

A2024 is a high-strength aluminum-copper alloy, widely recognized for its excellent fatigue resistance and good machinability. It is commonly used in aerospace structures, rivets, and precision components requiring high strength-to-weight ratio. While it has good mechanical properties, its corrosion resistance is moderate and often needs protective coatings.

Density:

2.8 g/cm³

  • A7050

A7050

A7050 is a high-strength aluminum-zinc-magnesium-copper alloy designed mainly for aerospace structural applications. It offers very high strength, excellent fracture toughness, and good stress corrosion cracking resistance—making it suitable for thick sections and critical parts. Its overall corrosion resistance is better than some other 7000 series alloys like 7075.

Density:

2.8 g/cm³

  • 11SMn30

11SMn30

11SMn30 is a free-cutting non-alloy steel with added sulfur (~0.27–0.33%) to improve machinability. It offers very good machinability, making it ideal for high-volume production of turned parts, screws, and fittings. However, due to higher sulfur content, its weldability and toughness are limited.

Density:

7.9 g/cm³

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If you do not see the material stock you are looking for, please choose "Custom" under the material drop-down on your quote page and submit for an expert engineering review once you have specified features, tolerances, inspection needs, and quantities required. contact us

Need The Right Waterjet Solution?

Different waterjet systems may require specific component designs. We provide CNC machining and customized part solutions to meet unique requirements for size, structure, and performance.

Surface Treatment & Finishing

KAD applies suitable surface treatment processes according to different waterjet component requirements, improving wear resistance, corrosion resistance, sealing performance, and service life under high-pressure working conditions.

Surface Treatment Process Description Applicable Components Purpose
Material Compound Control Controls material composition to achieve required elasticity and wear resistance PU, PTFE, Rubber Seals Ensures stable sealing performance
Surface Polishing Improves surface smoothness to reduce friction and improve sealing contact Hydraulic flow areas Improves fluid movement
Edge Finishing Removes defects from molding process  Seal lips and contact edges  Prevents installation damage
Cleaning Process The cleaning process removes machining residues, oil, dust, and contaminants from waterjet parts to ensure surface cleanliness and reliable assembly. Hydraulic channels Ensures clean operation
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If you do not see the surface finish you are looking for, please choose “Custom” on the quote page. After specifying features, tolerances, inspection requirements, and quantities, submit for an expert engineering review — or simply contact us for support.

Frequently Asked Questions

Find answers about KAD waterjet parts, including selection, customization, compatibility, and delivery. Need more details? Contact our experts at [email protected]

  • Are you a factory or trading company?

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  • How long is your delivery time?

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  • How about the spare parts quality?

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  • Do you provide samples ? is it free or extra ?

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  • Can your factory customization ?

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What Our Customers Say

★ ★ ★ ★ ★ marks

KAD provides reliable waterjet parts with accurate dimensions and stable performance. The components fit our equipment well and help reduce maintenance time.

Emily Chen

Production Manager

★ ★ ★ ★ ★ marks

From product selection to delivery, KAD provided clear communication and professional support throughout the process.

David Lee

Engineering Director

★ ★ ★ ★ ★ marks

KAD’s precision-machined parts provide a dependable solution for our waterjet system maintenance and replacement needs.

Sarah Wang

Operations Head

Customization Process

KAD provides a streamlined customization process from product selection and technical confirmation to precision manufacturing and final delivery. With professional engineering support and strict quality control, we ensure each waterjet part meets your equipment requirements and performance expectations.

01

Product Selection

Choose from KAD’s existing waterjet parts range or provide your requirements for customized components based on equipment models, drawings, or technical specifications.

02

Requirement Confirmation

Confirm product specifications, materials, dimensions, and technical details to ensure the solution meets your application requirements.

03

Precision Production

After order confirmation and deposit payment, products are manufactured through precision machining processes with strict quality control.

04

Inspection & Shipment

Products undergo final inspection and packaging before being safely shipped according to the agreed delivery plan.

Start Your Waterjet Project Today

We provide full-range waterjet components with stable quality, strong manufacturing capability, and flexible customization to support your production needs.