S4L Diesel Used Engine Blocks For Excavator E304 Water Cooling
S4L Diesel Used Engine Blocks For Excavator E304 Water Cooling
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Basic Infomation
Place of Origin: Japan
Brand Name: Caterpillar
Model Number: S4L
Payment & Shipping Terms
Packaging Details: Neutral Package or Fumigation Free
Delivery Time: 5 -8 work days
Payment Terms: D/P, T/T
Supply Ability: 20 pieces
Excavator Model: E304
Engine Model: S4L
Type: Diesel Engine
Quality: High Quality
Condition: Used
Color: Same As Pictures
Size: Standard
Material: Steel
Product Description



S4L Diesel Used Engine Blocks For Excavator E304 Water Cooling





Car name: Engine cylinder block
Model Number: S4L
Cylinder stroke: 87
Work Form: Turbo
Application: Excavator
valve: 8 valve
Cooling: Water cooling
Injection: Eddy





Criteria for alloy selection
Choosing the alloy requires the consideration of various criteria. Aluminium foundry alloys used in the production of such complex cast parts as engine blocks must meet a combination of requirements which include low cost, excellent castability, good machinability, and moderate strength at elevated temperatures.


The strength level of the alloy determines for example the applicable wall thicknesses and other design aspects. Thus it is most relevant define the alloy already in the first development phase of an engine block. Generally the selection of the alloy is a compromise. High strength casting alloys would be the preferred option, but they have also drawbacks such as higher cost (e.g. AlSi7Mg due to its lower limits for impurity elements), poor castability (e.g. AlCu4Ti) and insufficient high temperature performance.

For economic and technical reasons, almost all aluminium engine blocks are produced using alloys based on recycled aluminium (AlSi8Cu3, AlSi6Cu4). However, new requirements for an increased ductility could require the use of alloys with a reduced impurity content closer to the composition of primary casting alloys.

Castability is generally improved with increasing silicon content. On the other hand, copper additions which are needed for high temperature strength have a negative effect on the feeding behaviour. When the high pressure die casting process is applied, alloys with a certain iron and/or manganese content are necessary to prevent molten metal sticking to the die. But iron additions also reduce the mechanical properties of the cast component.

Other alloy specification aspects
In some cases, other requirements may be more important selection criteria than cost and castability. In order to avoid the use of weight-increasing cast iron liners or costly coating solutions for the cylinder surface, some high performance engines are produced completely from hypereutectic alloys (AlSi17Cu4) which directly provide a wear-resistant cylinder lining.


S4L Diesel Used Engine Blocks For Excavator E304 Water Cooling 0S4L Diesel Used Engine Blocks For Excavator E304 Water Cooling 1

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