I. Core Product Positioning
The Cylinder Head Gasket is a crucial sealing component between the engine block and the cylinder head, and is known as the "sealing heart" of the engine. Its core mission is to achieve precise isolation and reliable sealing of the combustion chamber, cooling water passage, and lubricating oil passage under harsh working conditions of high temperature, high pressure, vibration, and chemical corrosion, preventing gas leakage, coolant leakage, and oil leakage, directly ensuring the power output, fuel economy, and operational stability of the engine.
II. Technical Parameters
|
Project |
Specification Parameters |
|
Thickness range |
0.5mm~3.0mm (customizable according to the model) |
|
Applicable cylinder diameter |
50mm~200mm (covering engines from small displacement to high power) |
|
Operating temperature |
-40℃~400℃ (short-term peak temperature can reach 450℃) |
|
Work pressure |
Up to 1000psi (combustion chamber gas pressure) |
|
Material structure |
Multi-layer composite (metal skeleton + sealing coating/graphite layer) |
|
Sealing coating material |
NBR rubber, fluororubber, silicone rubber (oil-resistant and temperature-resistant) |
|
Metal frame material |
Cold-rolled steel plate, stainless steel 304/316 (high strength, corrosion-resistant) |
|
Dimensional tolerance |
±0.02mm (critical dimension) |
|
Number of bolt holes / Hole diameter |
Customized according to the model (matching the bolt layout of the engine cylinder head) |
|
Environmental protection standards |
Asbestos-free, compliant with RoHS/REACH international environmental certification |
|
Service life |
Under normal operating conditions, it is ≥50,000 kilometers (or ≥3 years) |
|
Installation method |
Bolt tightening (it is recommended to install according to the torque specified by the engine manufacturer) |
III.Core Features
Superior sealing performance: Utilizing a multi-layer composite structure design (such as graphite + metal skeleton, multi-layer stainless steel + rubber coating), the surface is precisely pressed with sealing patterns, fitting the microscopic irregularities of the engine joint surface. Even under extreme pressure (up to 1000psi) and temperature fluctuations, it can maintain zero leakage sealing effect.
Ultimate weather resistance and durability: High-quality base materials with high temperature resistance (-40℃~400℃), oil resistance, and anti-aging properties are selected, coupled with reinforced edge protection design, effectively resisting engine exhaust corrosion, coolant erosion, and fatigue damage caused by long-term vibration. The service life is extended by more than 30% compared to ordinary gaskets.
Precision adaptability: Precise mold opening is carried out based on the cylinder bore, bolt hole positions, and water/oil passage layout of different engine models, with dimensional tolerances controlled within ±0.02mm. The mold perfectly matches the joint surface between the cylinder block and cylinder head, allowing direct installation without additional adjustments.
Deformation resistance stability: The metal skeleton layer is made of high-strength cold-rolled steel plates, which have been strengthened through heat treatment, providing excellent rigidity and deformation resistance. It can effectively compensate for the thermal expansion differences during engine operation, avoiding gasket warping or permanent compression deformation.
Environmentally friendly and low friction: The surface coating is made of asbestos-free and environmentally friendly materials, meeting international environmental standards. It also reduces the friction coefficient of the joint surface, minimizing wear during installation and enhancing assembly efficiency, sealing performance, and durability.
IV. Scope of Application
Vehicle coverage: Compatible with passenger vehicles (sedans, SUVs, MPVs), commercial vehicles (trucks, buses), construction machinery (excavators, loaders), marine engines, and general machinery equipment (generators, air compressors) and other types of internal combustion engines.
Engine type: Compatible with various engine types such as gasoline engines, diesel engines, turbocharged engines, hybrid engines, etc., covering mainstream brands (such as Toyota, Honda, Volkswagen, Ford, Cummins, Weichai, etc.) and non-standard customized models.
Core usage: Cylinder Head Gasket is used for engine overhaul, seal replacement, and fault repair (such as gas leakage, coolant leakage, oil leakage, etc.), it is a core consumable part that ensures the normal operation of the engine.
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