RTR supplies slewing ring used for excavator:
Komatsu: PC60, PC90,PC100,PC120,PC150,PC200,PC220,PC228,PC300,PC400,PC450,
Hitachi:EX60,EX90,EX100,EX120,EX200,EX210,EX300,ZX120,ZX200,ZX225,ZX230,ZX240,
Kobelco:SK60, SK907, SK100,SK120,SK200,SK300
Cartpillar:E200B,CAT215, CAT226 ,CAT305.5,CAT312, CAT320, CAT325
Volvo:VOLVO210
Kato:HD450,HD516,HD700,HD770,HD800,HD820,HD900
Samsung:  PS132, PS210,PS292,MX08-2
Sumitomo:SH200,SH260,SH265,SH280,SH300,SH340,SH350,SH430,SH40
Liebherr:914/924
Hyundai: R245,R260,R280,R290,R300,R305,R320,R335,R360,R450
Doosan: DH55,DH60,DH200,DH220,DH225,DH10,DH280,DH290,DH300,DH320,DH330,DH360,DH500