SILVERLINE METAL ENGINEERING PVT. LTD.
Crane Rail Wheel Assembly

Crane Rail Wheel Assembly

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Crane Rail Wheel Assembly

Presently most of the Crane manufacturers are using En 9 or En 8 material forgings for crane wheels. The wheels are manufactured in forging  Lead time for forgings is min 4 to 5 weeks from the date of order & 1 more week for machining, heat treatment & other finishing (e.g. bore grinding). It means we have to plan the material before 5 to 6 weeks. 

In case of En 24, we need to have few more days for machining time due to high hardness as compare to En 9.. 

To avoid high procurement time & heavy machining, we have developed these Crane wheel in SGI 800/2 material. Main property of this material is self lubrication & high strength.  

Since these are castings, the delivery period of the material will be reducing to 3 weeks against of forging 5 to 6 weeks.   We Will give the test certificate for every wheel with traceability for wheel No. The report will contain UT & actual hardness of wheel along with physical & chemical composition of material. 

This wheel are available from 150 mm to 630 mm Diameters (Or as per customer requirement) 

A comparison chart for En 9 & SGI 800/2 is given below for your reference

Parameter

En 9

SGI 800/2

1. UT (Ultimate Tensile)

710

840

2.YS (Yield Strength)

 

 

350

 

 

700

 

 

3.Elongation %

 

 

15

 

 

4

 

 

4.Hardness(After HT)BHN

 

 

180 ~ 230

 

 

300 ~ 330

 

 

5.Delivery(Lead Time)Week

 

 

05 ~ 6

3 ~ 4