Vertical mill rocker is one of key components of vertical grinding mill It includes upper rocker, down rocker, rocker shaft, bearing, bearing seat, etc The upper rocker is used to install the grinding roller, and the down rocker connects with hydraulic system Two rockers are connected into a whole by shaft, taper sleeve and taper pin

1.The vertical mill rocker produced by Great Wall Steel Casting has better wear-resistant capability and good anti-cracking.

 

2.We carry out the dressing and finishing by arc air gouging and shot-blasting for the steel castings to guarantee the appearance quality.

 

3.Before delivery, all the rockers will have NDT inspection several times as per perfect inspection flow. Any defective product is forbidden to leave factory.

 

Our main material for vertical mill rocker arm is similar as followings:

 

Standard Specifications for Cast Steel
Country	Standard	Grade
United Kingdom	BS3100	A2
USA	AISI/SAE	UNS J04000
Germany	DIN 1681	GS-60
Japan	JIS-G5101	SC480
International	ISO 3755	270-480

 

Quality assurance

 

The fabrication route is governed by the provisions of the implemented Quality System ISO 9001: 2000. The standard documentation ensures the full traceability of every process step:
• Manufacturer test certificates according to DIN EN 10.204 § 3.1 including chemical composition, mechanical properties and non-destructive examination;
• Dimensional check supported with a “as-built“ sketch;
• Record of the heat treatment chart;

 

There are many customers in China. The steel casting products can meet both requirements of domestic production process, and international advanced production standards. It have won a good reputation from new and regular customers especially in Tianjin, Henan, Hebei, Dalian, Tangshan etc. because of its good post operation. The casting products ensure the vertical mill’s effective operation.

 

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