Introduction
At Jusheng, innovation is at the core of everything we do. Our dedicated Research & Development (R&D) team works tirelessly to design, test, and manufacture high-quality excavator engine gaskets and undercarriage components that meet the evolving needs of the construction industry. From reverse engineering obsolete parts to developing advanced materials for improved performance, we are committed to delivering cutting-edge solutions for all major brands, including Komatsu, Hitachi, Kobelco, JCB, Doosan, Hyundai, SANY, XCMG, Liebherr, Mitsubishi, Yanmar, Kubota, Case, New Holland, and more.

We continuously research and test new materials to enhance gasket performance and durability:

• Multi-Layer Steel (MLS): Optimized layer configurations for maximum sealing under high pressure and temperature

• Graphite Composites: Enhanced heat resistance up to 1200°C for exhaust manifolds and turbochargers

• Viton / FKM: Superior chemical resistance for modern common rail fuel systems

• Asbestos-Free Alternatives: Environmentally friendly composite materials matching original performance

• Wear-Resistant Alloys: For undercarriage components subjected to extreme abrasion

Our reverse engineering capabilities allow us to manufacture parts for older or discontinued models:

• 3D scanning of original parts using blue light scanners (accuracy up to 0.02mm)

• CAD modeling and dimensional analysis

• Material composition analysis

• Rapid prototyping for fitment verification

Every new design undergoes rigorous testing before production:

• Pressure Testing: Gaskets tested up to 50 bar to ensure combustion seal integrity

• Thermal Cycling: Components subjected to temperatures from -40°C to 1200°C

• Dynamic Load Testing: Undercarriage parts tested under simulated operating conditions

• Leak Detection: Helium mass spectrometry for micro-leak verification

• Wear Testing: Accelerated life testing for track chains, rollers, and sprockets

Our engineering team collaborates with clients to develop custom solutions:

• Design modifications for improved performance

• Material substitutions for specific applications

• Adaptation of existing designs for new machine models

• Complete gasket kit development for engine overhauls

• CMM (Coordinate Measuring Machine): Dimensional verification with micron-level accuracy

• Universal Testing Machine: Tensile and compression testing for materials

• Hardness Testers: Rockwell, Brinell, and Shore hardness measurement

• Metallurgical Microscopes: Grain structure analysis for metals

• Spectrometers: Material composition analysis

• Thermal Imaging Cameras: Heat distribution analysis during testing

We begin by understanding market trends and customer needs:

• Analysis of common failure modes in existing parts

• Feedback from mechanics, distributors, and equipment owners

• Identification of obsolete parts requiring reproduction

Our engineers develop initial concepts:

• CAD modeling and design optimization

• Material selection based on application requirements

• Finite Element Analysis (FEA) for stress prediction

Rapid prototyping brings designs to life:

• 3D printed prototypes for fitment verification

• Small-batch production samples for testing

• Customer sample approval process

Comprehensive testing ensures performance:

• Bench testing under simulated operating conditions

• Field testing in actual excavator applications

• Third-party verification when required

Approved designs move to mass production:

• Tooling development and optimization

• Process validation and quality control setup

• Pilot production runs before full-scale manufacturing

Our latest MLS gasket technology features:

• Optimized bead geometries for improved sealing force distribution

• Micro-coated layers for enhanced conformability

• Reduced clamping load requirements for cylinder head protection

We've developed advanced metallurgy for undercarriage components:

• Induction-hardened track chain bushings for increased wear life

• Optimized track shoe designs for improved traction and reduced ground pressure

• Advanced sealing systems for permanently lubricated track chains

Supporting sustainability in construction:

• Asbestos-free gasket materials for all applications

• Recyclable packaging materials

• Extended product life cycles reducing replacement frequency

Our R&D team supports the full spectrum of excavator brands and engine models:

• C-Series: C1.1 through C32

• 3000-Series: 3011C through 3516

• 3400-Series: 3406, 3408, 3412, 3456

Komatsu

• 4D95, 6D95, 6D102, 6D105, 6D125, 6D140, SA6D102 through SAA6D155

Hitachi / Isuzu

• 4BG1, 6BG1, 4HK1, 6HK1, 4LE2, 6WG1, 4JB1, 4JG1, 4BD1, 3LD1, 3KR1, 3KC1

Perkins

• D-Series, T-Series, 1100-Series, Perkins 100 through 1300 Series

Mitsubishi

• 4M40, 4D31, 6D31, 6D34, 6D24, 4M41, 4M42, 6M60, 6M61, 6M70

Yanmar

• 3TNM, 4TNM, 3TNV, 4TNV, 3TNE, 4TNE, 3D, 4D series from 68mm to 108mm bore

Kubota

• D722 through D7200, V1205 through V8008, 05 and 03 series

Cum-mins

• B Series, C Series, L Series, N Series, M Series, X Series, K Series, V Series

And all other major brands: JCB, Doosan, Hyundai, SANY, XCMG, Liebherr, Case, New Holland, Sumitomo, IHI, Kobelco

Have a challenging project? Need a custom solution? Our R&D team is ready to collaborate with you.