Man Brake Disc 81508030031 81508030023 81508030038 81508030040

• Type：Brake Discs
• Material：Iron
• Position：Front
• Certification：ISO,TS16949, ISO9001
• Classification：Disc
• Drum Brakes Classification：Brake Disc

=== Base Info ===

• Model NO.：N508030038,N508030040
• Main Market：Eastern Europe
• Height：130mm
• Outer Diameter：432mm
• PCD：168mm
• CB：131mm
• Thickness：45mm
• Warranty：18 Months From Purchasing
• Transport Package：Pallet
• Specification：432x130mm
• Trademark：PUJIE
• Origin：Shandong, China
• HS Code：8708309500
• Production Capacity：100000 Ton,Tons Per Year

=== Description ===
Cast iron CHEMICAL COMPOSITION(mass%) CSIMnNiCrMoCuSPSnTiV% MIN3.651.60.4/0.15/0.3/////% MAX3.82.10.80.10.350.250.60.150.10.150.050.05MICROSTRUCTUREMATRIXType of matrixFine LamellarPermissible limit  5% Max, well distributedLedebutiteNot permissibleGRAPHITE (To UNI EN ISO 945)Shape∣Distribution A: 70% MIND·E:<4% DisporsedB: Resto/RemainderSize3- 4 -5 : 70% MIN2: Traces6:≤15%Cementite and free carbidesTraces up pt 1% MAX permissibleMECHANICAL PROPERTIES OF CASTINGHARDNESS (HBW)On machined braking surfaces170~210On braking surfaces as-cast (0.5 mm below surface)230MAXTENSILE STRENGTH(Rm) (N/m²)On braking surface170 MINOn mounting flangeWEDGE INDENTATION STRENGTH (Rmk)(N/m²)On braking surface125 MINYoung's MODULUS (E) (N/m²)/95PHYSICAL PROPERITIES  (Indicative values)Density  (volumic mass)7.1 kg/dm³Coefficient of thermal expansion at 20 degree 9.10 1/KThermal conductivity at 100 degree50 W/Mk

2. Foundry :

The foundry - At the heart of production

The quality and productivity of our plants are what optimally ensure 20 million cast parts can leave our factory each year.
The set of procedures for manufacturing brake discs are characterised by specialised and coordinated processes. Short transport routes, carefully tailored production stage capacities and flexibility all underpin our high productivity.

Automatic core production
6 Cool-box core production centres with automated core handling
High-rack core depot with a capacity of 20,000 cores
Fully automatic core transport to moulding plants

Moulding material preparation
Computer-controlled processing of clay-bonded moulding material
3 automatic vacuum mixers

Smelting
4 medium-frequency crucible furnaces
1 unlined water-cooled hot-blast cupola furnace
1 mains frequency channel-type induction furnaces
4 mains frequency crucible furnaces
The smelting output is currently 260,000 tonnes of molten iron per year, which Buderus Guss makes exclusively using steel scrap and returns.

Moulding and casting
 6 fully automated vertical moulding plants
 6 induction-heated casting furnaces
 Camera-controlled fully automatic casting stopper controls
 Laser-controlled casting stopper control

Raw casting finishing
Blasting and grinding in a through-feed process with four countinous rocker Barrel

Automatic visual inspection of brake discs with 4 triangular laser camera systems
Automatic robot-driven packaging of brake discs

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