21W-60-22180 21W6022180 Solenoid Excavator Electric Parts For KOMATSU PC128UU PC228UU

• 21W-60-22180 21W6022180 Solenoid Excavator Electric Parts For KOMATSU PC128UU PC228UU

• Specification

• Function 

1. Working Principle
Electromagnetic Actuation: When an electrical current is applied to the solenoid coil, it generates a magnetic field that pulls a plunger or spool within the valve body.
Spring Return: When the current is removed, a spring forces the plunger back to its original position, shutting off the hydraulic flow and returning the system to its neutral state.

2. Primary Functions
Control of Hydraulic Movements: By switching the solenoid on and off, it controls the direction and timing of hydraulic oil flow, enabling smooth and precise operation of functions such as boom lifting, arm extending, bucket movement, and rotation.
Safety Interlocks: In some configurations, the solenoid may be part of a safety system, ensuring that certain movements are prohibited until specific conditions are met, such as the safety lock being disengaged.

• Compatible models

EXCAVATORS PC128UU PC228UU PC75UU

• More solenoid parts fit for KOMATSU machinery

• Catalog parts list

• We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Advantage

1. Offer Top quality & competitive products

2. Support 12-month warranty

3. 100% tested before shipping

4. Delivery in time

5. A wide range of Oil Pressure Sensor, Fuel Tank Level Sensor, Temperature Sensor, Speed Sensor for excavator 

6. More than 15 years production and 11 years foreign trade experience

7. Professional QC team

8. Best sales team, 24 hours service

• Packing and Shipping

Packing Details :

inner packing : plastic film for wrapping

external packing : wooden

Shipping :

within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,

2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.

3. By Sea: Delivery from the Huangpu port .

• Product Warranty

1. Warranty Period: 3 Months' warranty from the date of arrival. Longer period of 6 months' warranty could be offered with higher price level.

2. Warranty type: replacement of the parts that have quality problem.

3. Warranty is not valid for below s

* Cutomer give wrong information about the order

* Force Majeure

* Wrong installation and operation

* Rust because of wrong stock & maintenance