Madev International specializes in the manufacturing and supply of high-quality engine valves suitable for a variety of internal combustion engines. These valves are designed to ensure optimal performance, durability, and efficiency across different applications.

Types of Engine Valves Offered

• Intake Valves:

  • Engineered to facilitate the smooth entry of air-fuel mixtures into the combustion chamber.
  • Designed with larger diameters to maximize airflow and enhance engine performance.

• Exhaust Valves:

  • Crafted to effectively expel exhaust gases from the combustion chamber after combustion.
  • Made from materials that can withstand high temperatures and corrosive environments.

Madev International provides high-performance piston rings engineered for durability and optimal engine performance across a wide range of applications, including Gasoline Engines, Diesel Engines, Internal Combustion Engines, Heavy Commercial Vehicles, and Passenger & Commercial Cars.

Materials & Coatings:

• PVD: Physical Vapour Deposition gives High hardness and improved temperature stability.
• Chromium Plating for excellent wear resistance.
• Molybdenum (Mo) Coating for reduced friction and superior oil retention.
• Nitride Coating for enhanced surface hardness and wear protection.

Madev's piston rings are designed for high performance, offering durability and precision in demanding engine environments

Types of Rings:

• Compression Rings
• Scrapper Rings
• Oil Rings 

Madev International is an ISO 9001:2015 certified company leading the market with it's accurate engine components since 1960's. The company started with producing Piston Rings for Diesel Engines and Air Compressors and went towards manufacturing parts for all kinds of applications over the decades.

We deal in Pistons, Piston Rings, Cylinder Liners & Engine Valves of various applications.

Madev International manufactures high-quality pistons designed for a wide range of engines, including diesel, internal combustion, and heavy-duty engines. These pistons are engineered for durability, efficiency, and optimal performance in various operating conditions.

Materials:

• Aluminum Alloys: Lightweight and durable, providing excellent heat dissipation and strength-to-weight ratio for passenger cars and commercial vehicles.
• Forged Steel: Known for its superior strength and durability, ideal for high-performance and heavy-duty engines.

Types of Pistons

• Flat Pistons:
  • Flat crown for even air-fuel mixture distribution.
  • Promotes consistent flame front during combustion.
• Dish Pistons:
  • Recessed center resembling a dish.
  • Improves combustion efficiency and accommodates larger valves.
• Dome Pistons:
  • Raised crown shape interacts with the combustion chamber.
  • Enhances power output and combustion efficiency.

Cylinder liners are critical components in internal combustion engines, providing a protective surface for piston movement. The three main types are dry cylinder liners, wet cylinder liners, and air-cooled cylinder liners, each with unique characteristics and applications.

Dry Cylinder Liners

• Overview: Installed directly into the engine block without contact with coolant, relying on air or oil for cooling.
• Applications: Common in high-performance and racing engines.

Wet Cylinder Liners

• Overview: In direct contact with engine coolant, surrounded by a water jacket for effective heat transfer.
• Applications: Widely used in automotive and industrial engines requiring consistent cooling.

Air-Cooled Cylinder Liners

• Overview: Rely on airflow for cooling, eliminating the need for a water jacket.
• Applications: Found in motorcycles and small engines where water cooling is impractical.