MAK 551AK Exhaust Valve Spindle

• Certification: ISO9001
• Standard Component: Non-Standard Component
• Technics: Forging
• Material: X40crsimo1-2+Stellite
• Type: Exhaust Valve
• Head Dia.: 136mm
• Model NO.: MAK 551AK
• Stem Dia.: 26mm
• Overall Length: 650mm
• Intake Pressure Impulse: Supercharged
• Speed: Speed
• Piston Movement: Reciprocating
• Ignition Mode: Compression-Ignition
• Number of Cylinders: Multi-Cylinder Machines
• Cooling Cylinder: Water-Cooled
• Number of Strokes: Four-Stroke
• Fuel: Diesel Engine
• Cylinder Arrangement Form: L
• Transport Package: Polywood Box
• Specification: GL, BV, CCS
• Trademark: TEQRUN
• Origin: Nanjing China
• HS Code: 84099910
• Production Capacity: 1000 PCS/Year

Product Description

The MAK MU551AK Exhaust Valve(or MAK M551AK Valve Spindle)
1. Materials :
(comply with European Standard EN10090: 1998 Valve Steels and Alloys for Internal Combustion Engines).
A. Valve head Nimonic 80A(NiCr20TiAl + friction welded stem1.4718(X45CrSi9-3) + stem chrome plated
B. Spindle 1.4866(X33CrNiMnN23-8 or 23-8N) + seat stellite welded + stem chrome plated
C. Spindle 1.4731(X40CrSiMo10-2) + seat stellite welded + stem chrome plated
2. Upset forging and die pressing for grain flow along head profile.
3. Close controlled heat treatment for achieving proper mechanical properties and metallurgical structure.
4. Stress released completely for microstructure and dimensional stability.
5. Supersonic detection for welded seat, dye penetrant or magnetic particle inspection for entire valve.
6. LR, BV, CCS Certificate depends on needs.
7. Proven Reliability by European customers.