SEM SG30-9 crawler hydraulic excavator product features a small, ~ ~ with excellent efficiency and excellent value for money; 2, simple ~ ~ operation, compact and flexible, easy to transport, can work in a small space; 3, ~ ~ Standard configuration dozer can flat ground, earth backfill, increase machine stability; 4, ?? with mining, crushing, clearing hook, drilling, bulldozing versatile, quick-change attachments, the machine utilization is increased?. ? ◆ technical performance parameters of single-bit standard classification engine power KW 20 engine rated speed rpm 2200 MPa 16 hydraulic system pressure dosing pumps L / min 2x26.4 + 6.6 maximum digging force KN 15 gradeability -??? 30 ° grounding? walking speed than the pressure Kpa 32 Km / h 2.2 maximum traction KN 18 platform rotation speed rpm 13 ????? ???? ◆ ??? Dimensions ??????????? Unit: mm Item Parameters A total? total length 4400 B? high 2610 C 1450 D Overall width Track width 280 E platform radius of gyration 1340 F Track length 1785 G round? from 1400 H AGL 295 I Total height of the boom end 1490 J platform outside width 1200 K 1280 L platform hood height above the ground 550