Our SW210LC-5, SW230LC-5 crawler excavating machinery is equipped with Cummins 6BT5.9-C engine. SW330Es Excavator is fitted with Cummins 6CTA8.3-C engine. These high quality engines can offer strong power and they are characterized by low running noise, reliable performance and low fuel consumption. The hydraulic valve, hydraulic pump and swing drive assembly are all purchased from KAWASAKI HEAVY INDUSTRIES, LTD in Japan. 1.2.1 The hydraulic valve has locking function for swing arm and boom, and stick circuit regenerative system. 1.2.2 The hydraulic pump can give increased main pump flow and hydraulic oil tank capacity. Pilot gear pump is assembled to achieve sensitive operation. Integrated installation makes pipe connection and maintenance much easier. 1.2.3 The swing mechanism is designed with special valve to prevent it from swinging back. It is provided with shock absorption function and is durable and easy to operate. The travel assembly purchased from NABTESCO can offer strong power and good self-cleaning performance. It is fitted with heavy duty lengthened chassis and sloping track frame. Our crawler excavator is equipped with automatic idle system. When servo-valve stays in the neutral position for more than 5 seconds, CPU controller will stimulate stepping motor to reduce the swing speed to 1300rpm so as to reduce fuel consumption and noise. The crawler excavating machinery can also be fitted with quartering hammer and concentrate lubricating system, if required. SW210LC-5, SW230LC-5, and SW330Es crawler excavators differ from each other in traveling speed, swing speed, maximum vertical digging depth, maximum working radius and bucket capacity, etc. For example, the traveling speed of SW210LC-5 excavator is 5.4/3.1 km/h, of SW230LC-5 excavator is 5.5/3.5 km/h, of SW330Es excavator is 5.4/3.1 km/h. For more details, please refer to the parameter table.

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