Repair Seals Kit Suppliers fit Krupp Hydraulic Hammer

High-performance Krupp Hydraulic Breaker Seal Kit designed for durability, leak resistance, and accurate OEM compatibility. Built with premium sealing compounds and precision engineering, this kit ensures long-lasting protection for internal components and keeps Krupp breakers working at maximum efficiency.

MaterialNBR/ PTFE/ ACM/ VMQ/ FKM/ HNBR/ EPDM/ Silicone and etc
MOQ5 Pieces
PressureUp to 690bar(10000psi)
Working Temperature-40–120℃(according to the material)
ColorBlack/Orange/Brown/White/Brown
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Kinton Seals is trusted by professionals worldwide for providing high-quality seal kits for excavators, dozers, loaders, and other heavy machinery, ensuring reliable performance and long-lasting durability.

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Description

Hydraulic breakers rely on precise sealing systems to maintain hydraulic pressure and deliver consistent striking power. A compromised seal can cause hydraulic oil leakage, loss of energy, contamination of internal components, and costly downtime. The Krupp Hydraulic Breaker Seal Kit is specifically engineered to handle the intense stress and vibration typical of breaker operations, ensuring reliable protection and stable performance.

Quality Manufacturing Process

Our Krupp Hydraulic Breaker Seal Kits are produced with OEM-level precision and go through a strict quality assurance process:

Precision Material Weighing

Precision Material Weighing

Each raw material block is carefully weighed with high-accuracy equipment before processing. This ensures that every seal ring starts with the exact material volume required for its specific size and application, preventing inconsistencies in density or performance.

Mold Preparation & Material Placement

Mold Preparation & Material Placement

After weighing, the prepared material is positioned onto the appropriate mold. Our workshop is equipped with a wide variety of molds to match different seal ring diameters and cross-sections. The correct mold selection guarantees precise shaping, while careful placement avoids defects such as uneven thickness.

High-Pressure Compression Molding

High-Pressure Compression Molding

The molds are then set under specialized compression machines, where controlled pressure and temperature are applied. This process allows the material to be fully formed into a durable seal with consistent hardness and elasticity. Strict monitoring ensures every batch meets dimensional accuracy and structural integrity.

Seals Rigorous Quality Inspection

Rigorous Quality Inspection

Each batch of seals undergoes rigorous testing after molding. Technicians check for dimensional accuracy, surface smoothness, hardness, and sealing resilience. Any defective products are filtered out, ensuring that only seals with stable performance and long service life proceed to packaging.

These standards guarantee reliable sealing even under the extreme shock loads of Krupp breakers.

OEM Compatibility and Cross Reference Seals

Our Krupp Hydraulic Breaker Seal Kits are designed to cover a wide range of breaker models, from compact to heavy-duty hammers. Each kit matches OEM specifications, ensuring easy installation and reliable operation.

In addition, we provide cross reference seals support, helping customers quickly identify the correct seal kit by OEM part numbers or breaker model codes. This reduces downtime, prevents errors in part selection, and makes procurement more efficient for both dealers and end users.

Part Numbers
HM90HM130HM135HM140HM580HM703HM711HM901
HM960HM960-2HM1300HM1500HM2100HM2500

Applications

Krupp breakers are used worldwide in demanding industries, and our seal kits guarantee reliable performance in each setting:

  • Demolition: Maintains striking force during prolonged concrete and rock breaking.
  • Mining & Quarrying: Resists abrasive dust, sand, and stone particles.
  • Road Construction: Ensures continuous operation during foundation and trenching works.
  • Civil Engineering Projects: Provides consistent sealing for high-frequency tasks in bridges, tunnels, and urban works.

Seal Placement

Seals are strategically installed in piston, cylinder, valve, and tie rod areas of breakers. They work together to:

  • Prevents leakage of hydraulic oil under high pressure.
  • Protecting internal components from dust, water, and abrasive particles.
  • Provides smooth piston and connecting rod movement and consistent impact force.
  • Reduces wear on metal components by maintaining proper lubrication.

Seals are strategically placed in the piston, cylinder, tie rods, and valve areas, ensuring full hydraulic protection and preventing premature wear of critical components.

Internal structure of breaker hammer

Material Overview for Seal Kits

Each Krupp seal kit is manufactured using premium-grade materials tailored for different operating conditions:

NITRILE RUBBER BUNA NBR

Nitrile Rubber Buna(NBR, BUNA-N)

Temperature Range:-30 to 125 ℃
Hardness:60-90 Shore A
Color: Black
Use: Oil & Water Resistance Situation Advantage: Excellent oil resistance, performance and stability, widely used, cheaper

FKM FPM FLUORORUBBER SEAL

Fluororubber(FKM,FPM)

Temperature Range:-20 to 250℃
Hardness:70-90 Shore A
Color: Black/Brown/Green
Use: Oil & Chemical Resistance Situation
Advantage: Wear resistance, acid and alkali resistance, high temperature resistance situation

SILICONE VMQ SEALS

Silicone (VMQ )

Temperature Range: -60 to 225 ℃
Hardness: 50-70 Shore A
Color: Red/Black/Blue/White/Transparent, etc
Use: Heat& Food Situation(FDA, RoHS Approved)
Advantage: Good heat resistance, cold resistance, lubrication oil resistance, water resistance safety & reliable to human body

ETHYLENE PROPYLENERUBBER EPDM EPM SEAL

Ethylene Propylene Rubber(EPDM, EPM)

Temperature Range:-50 to 150 ℃
Hardness: 60-90 Shore A
Color: Black
Use: Ozone, water vapor situation
Advantage: Excellent oxidation resistance ozone resistance and erosion resistance

PERFLUOROELASTOMER FFKM FFPM

Perfluoroelastomer(FFKM, FFPM)

Temperature Range: -42 to 327 ℃
Hardness:60-95 Shore A
Color: Black / White
Advantage: Long-term, proven performance, can mean less frequent seal changes, repairs and inspections, increasing process and equipment uptime in productivity and yield.

NEOPRENE RUBBER CR

Neoprene Rubber(CR )

Temperature Range:-30 to 125 ℃
Hardness:60-90 Shore A
Color: Black
Use: Oil & Water Resistance Situation Advantage: Excellent oil resistance, performance and stability, widely used, cheaper

This carefully balanced material combination ensures seals withstand heavy-duty use while maintaining flexibility and resilience.

Maintenance Recommendations

To extend breaker and seal life:

  • Replace seals at regular service intervals to prevent hydraulic oil loss.
  • Always clean cylinder and piston surfaces before installing new seals.
  • Use the correct hydraulic oil recommended for Krupp breakers.
  • Keep spare seal kits stored properly—away from sunlight, heat, and humidity.

Why Choose Our Konan Seal Kit?

  • OEM-quality precision for guaranteed compatibility.
  • Premium materials that resist wear, heat, and chemicals.
  • Cross reference seals service for accurate and quick part matching.
  • Complete sets with all essential seals included for full replacement.
  • Trusted durability proven in construction, mining, and demolition.

Contact Us

Looking for a dependable Krupp Hydraulic Breaker Seal Kit supplier? We offer OEM reference matching, technical support, and bulk order solutions to ensure your Krupp breakers keep running at peak performance.

Shipping and Delivery

At Kinton Seals, we understand that reliable delivery is just as important as product quality. Our goal is to ensure that every order of Seal Kits for excavators, bulldozers, wheel loaders, and other heavy machinery reaches our customers safely, on time, and in perfect condition.

SEAL KIT PACKING

Packaging & Protection

  • Standard Export Packaging – Each seal kit is carefully packed in moisture-proof and dust-proof bags, ensuring seals remain clean and undamaged during storage and transportation.
  • Layered Protection – Kits are placed in sturdy cartons, and for bulk shipments, cartons are further reinforced with pallets and stretch film to minimize impact during handling and transit.
  • Customization Options – We provide OEM/ODM packaging services, including branded boxes, barcodes, and special instructions, helping partners strengthen their brand presence in local markets.
  • Extra Protection – For bulk shipments, cartons and pallets are reinforced to reduce the risk of damage in transit.

Order Processing & Lead Time

  • Standard Seal Kits – For large quantity orders, lead time is usually 7–10 working days, as each kit requires precise matching of every seal, followed by labeling and packaging.
  • Custom Seal Kits – For tailored requirements or non-standard models, production and assembly typically take 15–30 days, especially if new tooling or mold development is required.
  • Sample Orders – Small batch or sample kits can often be prepared faster, subject to stock availability.

Delivery Options

  • Air Freight for urgent orders
  • Sea Freight for bulk shipments
  • Courier Express (DHL, FedEx, UPS) for small packages and samples
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Request Pricing & Details

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Kinton Seals is trusted by professionals worldwide for providing high-quality seal kits for excavators, dozers, loaders, and other heavy machinery, ensuring reliable performance and long-lasting durability.

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