1.Used: rubber and plastic industry 2.Rolls: chilled cast iron 3.Certification: ISO9001:2000

XK Two roll mill

model Item			XK160	XK250	XK360	XK400	XK-450	XK550	XK560	XK660	XK710
Roll diameter		mm	160	250	360	400	450	550	560-510	660	710
Roll working length			320	620	900	1000	1200	1500	1530	2130	2200
Front roll linear speed		r/min	9	16.3	16.7	19.3	21.8	22.5	27.2	28	31.9
Speed ratio of rolls			1:1.35	1:1.1	1:1.25	1:1.27	1:1.27	1:1.2	1:1.2	1:1.24	1:1.51
Max roll space		mm	4.5	8	10	10	12	16	15	0.5-15	0.5-15
Compound feeding capacity		kg	1-2	10-15	20-25	18-35	50	50-65	50-65	165	190
Motor power		kW	5.5	18.5	30	45	55	110	90	240	280
Dimensions	L	mm	1133	2722	4200	4920	5405	6646	6270	7280	8185
	W	mm	920	1115	1780	1780	1740	2736	2282	3400	3910
	H	mm	1394	1345	1760	1800	1790	2105	2000	2530	2270
Gross weight		t	~2	~3.2	~6.5	~8	~11.4	~22	~22.5	~49	~51

We are supplying Chilled cast iron rolls for rubber industry,plastics industry,paper industry, and other industries.

----- We are using either the ordinary gravity pouring process or the centrifugal pouring process,or a combination of both processes.Customers are free to choose which process they prefer.

----- The centrifugal pouring process for big size rolls is a recently developed pouring process.The notable advantages of rolls made by centrifugal pouring process vs rolls made by ordinary gravity pouring process are:

 1).The chill cast shell and the inner part of the roll can be poured separately. Thus different composition of iron for the shell and for the inner part can be chosen freely according to different requirements.

 2).The thickness and the hardness of the chill cast shell can be controlled more precisely and uniformly.

 3).The molten iron is condensed under the centrifugal force.The surface of the shell is free from porosity, sand hole, slag inclusion, or other casting defects.

 4).When the roll is made by ordinary gravity pouring process, there is always a layer of mottled iron formed between the white iron(chill cast iron) and the gray cast iron.When drilled roll is used, this mottled cast iron layer always makes the drilling very difficule.When the roll is made by centrifugal pouring process, there is no mottled iron layer formed at all. The mottled iron layer problem no longer exists. The drilling can be done easily and precisely.

 5).When proper materials are used and centrifugal pouring process is adopted. the hardness of the chill cast shell can hold as high as HS 74+/-2.The tensile strength of the roll can reach as high as 250 MPa. The working life of the roll made by centrifugal pouring process would be three to five times the working life of the rolls made by ordinary gravity pouring process.

The sizes of rolls we are supplying are:

 (Diameter X Working Length in mm)

360 X 1500; 400X1000; 450X1200; 480X800-1500; 510X800-1600; 550X1500;

560X1530-2000;  610X1730-2500; 650X2130; 660X2130-3000; 700X2500-3500;

800X2500-4000; 900X2500-4000

 

 

Mixing mill XK-450 (For rubber and plastic industry ISO9001:2000)