Guangzhou Qichao Machinery Parts Co., Ltd.
| Compatible Equipment | PC300-7,PC350-7,PC360-7,PC400-7,PC450-7 |
| Application | Excavator Pilot Hydraulic Oil Circuit Control |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| Packaging Details | Neutral Packing/Branded Packaging |
| MOQ Support | 1 Piece Sample Order Acceptable For On-site Machine Compatibility Test |
| OE Part Number | 702-21-58100 |
| Warranty | 6 Months |
| Place of Origin | China |
| Model Number | PC300-7 PC360-7 |
| Brand Name | ZVEZDA |
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Product Specification
| Compatible Equipment | PC300-7,PC350-7,PC360-7,PC400-7,PC450-7 | Application | Excavator Pilot Hydraulic Oil Circuit Control |
| Supply Ability | 1000PCS/MONTH | Payment Terms | T/T |
| Packaging Details | Neutral Packing/Branded Packaging | MOQ Support | 1 Piece Sample Order Acceptable For On-site Machine Compatibility Test |
| OE Part Number | 702-21-58100 | Warranty | 6 Months |
| Place of Origin | China | Model Number | PC300-7 PC360-7 |
| Brand Name | ZVEZDA | ||
| High Light | pc400-7 excavator solenoid valve ，pc400-7 hydraulic solenoid valve ，excavator hydraulic solenoid valve | ||
This multi-way main valve pilot proportional solenoid OEM No.702-21-58100, cross interchange OE code 7022158100, matches the pilot pressure control oil circuit of main control valve for Komatsu PC300-7 and PC360-7 large excavators, used to adjust pilot oil pressure to drive main valve spool movement.
| Item Attribute | Technical Parameter |
|---|---|
| Commercial Title | Square Block Pilot Proportional Pressure Control Solenoid For PC-7 Series Large Excavator Main Control Valve |
| Cross Reference PN | 7022158100 (Short Code:702-21-58100) |
| Applicable System | Excavator Main Valve Stepless Pilot Proportional Hydraulic Control Circuit |
| Quality Grade | Dust-proof Anti-vibration High Temp Heavy Duty Replacement Standard |
| Production Base | Guangdong, China |
| Product Category | Large Excavator Main Control Valve Hydraulic Electrical Control Components |
| Electrical Spec | Coil Resistance 14.8Ω, Rated Control Current 712mA |
| Continuous Working Temp | Up to 124℃ without seal aging and pressure signal drift |
| Order Processing Cycle | Normally 1–7 working days once payment received |
| Custom Service | Custom Logo & Custom Export Carton Available For Bulk Orders |
| MOQ Support | 1 Piece Sample Order Acceptable For On-site Machine Compatibility Test |
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| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which large excavators adopt main control pilot solenoid valve 702-21-58100? | This square block pilot proportional solenoid is specially manufactured for PC300-7 and PC360-7 large construction excavator main multi-way control valve pilot oil circuit. |
| Q2 | What core pilot pressure regulation function does this valve undertake in hydraulic system? | It receives ECU current signal to adjust output pilot oil pressure, control the opening stroke of main valve spool, realize stepless speed regulation of boom, arm and bucket actions. |
| Q3 | What abnormal machine states will appear if this pilot solenoid fails? | Slow boom & bucket movement, insensitive operation handle, insufficient breakout force, unstable idle action and continuous rise of hydraulic oil temperature. |
| Q4 | Is full disassembly of the whole main control valve needed during replacement? | No, this valve is externally mounted on main valve block, only four fixing bolts and wiring plug need to be removed for direct replacement, low maintenance difficulty. |
| Q5 | What structural design ensures stable signal output in harsh construction environment? | Thickened braided oil-proof wire + fully sealed two-pin waterproof connector, integral anti-rust alloy valve block, effectively resist long-term dust, vibration and high temperature interference. |
| Q6 | How to quickly judge whether the solenoid coil is damaged before installation? | Use multimeter to measure coil resistance, normal range 14–16 ohms; infinite resistance means open circuit, resistance lower than 10 ohms means coil short circuit. |
Company Details
Business Type:
Manufacturer
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi... Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi...
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