Guangzhou EMB Machinery Parts Co., Ltd.
| Payment Terms | Western Union, T/T |
| Supply Ability | 100 pieces/months |
| Delivery Time | 1-2 Working Days |
| Packaging Details | Standard export package |
| Product number | 31QB-17200 |
| Warranty | 12 Months |
| Type | Main Control Valve Assembly |
| Feature | High Efficiency, High quality |
| Name | Machine to main control valve |
| Lead time | 1-2 working days |
| Machinery Test Report: | Provided |
| Payment | T/T, Western Union |
| Condition | Genuine New |
| MOQ | 2 piece |
| Transport | DHL/TNT/UPS/SEA/AIR Shipping |
| Pressure | High Pressure |
| Port | Huangpu Guangzhou |
| Machine Model | R520-9S |
| Brand Name | EMB |
| Model Number | R520-9S |
| Place of Origin | GUANGZHOU |
View Detail Information
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Product Specification
| Payment Terms | Western Union, T/T | Supply Ability | 100 pieces/months |
| Delivery Time | 1-2 Working Days | Packaging Details | Standard export package |
| Product number | 31QB-17200 | Warranty | 12 Months |
| Type | Main Control Valve Assembly | Feature | High Efficiency, High quality |
| Name | Machine to main control valve | Lead time | 1-2 working days |
| Machinery Test Report: | Provided | Payment | T/T, Western Union |
| Condition | Genuine New | MOQ | 2 piece |
| Transport | DHL/TNT/UPS/SEA/AIR Shipping | Pressure | High Pressure |
| Port | Huangpu Guangzhou | Machine Model | R520-9S |
| Brand Name | EMB | Model Number | R520-9S |
| Place of Origin | GUANGZHOU |
31QB-17200 Main Control Valve Assembly HMCB-01201 For R520-9S R455-7 Excavator
Unlock the full potential of your Hitachi R520-9 excavator with the **31QB-17200 Main Control Valve**—a critical component engineered to deliver unmatched hydraulic efficiency and operational control. Designed specifically for the R520-9, this high-performance valve ensures precise flow and pressure management, enabling seamless handling of heavy-duty tasks in mining, construction, and earthmoving projects.
Built to endure the toughest conditions, the 31QB-17200 features precision-machined spools, corrosion-resistant materials, and advanced sealing technology. Its optimized design minimizes internal leakage, maximizes fuel efficiency, and reduces heat generation, ensuring consistent performance under extreme workloads. Whether you’re executing complex grading, lifting, or trenching operations, this valve guarantees responsive, smooth, and reliable hydraulic response.
**Why the 31QB-17200 Stands Out:**
- **Perfect Fit**: OEM-compatible design tailored for the R520-9, ensuring hassle-free installation and peak system integration.
- **Enhanced Durability**: Robust construction withstands high-pressure cycles and abrasive environments, extending component lifespan.
- **Cost Savings**: Improved hydraulic precision reduces wear on pumps and cylinders, lowering maintenance costs and downtime.
Ideal for fleet operators and contractors demanding precision and reliability, the 31QB-17200 undergoes rigorous quality testing and comes with a trusted warranty. Don’t let hydraulic inefficiencies compromise your productivity—upgrade to the 31QB-17200 Main Control Valve for smoother operation, faster cycle times, and long-term ROI.
**Act Now** to optimize your R520-9’s performance. Contact us today for expert support, competitive pricing, and fast global delivery. Trust the 31QB-17200 to keep your machine running smarter, stronger, and longer.
Product Description:
Product Name: Main Control Valve
Model: R520-9S
Parts Number: 31QB-17200
Condition: Original New
In Stock:Yes
MOQ:2 PC
Payment Methods:Western Union, T/T
Port:Huangpu Guangzhou
Delivery Methods:By sea/air/express
Related Spare Parts We Can Supply:
| Machine Model | Part Number |
| R55W-9 Travel Motor | 31M5-00033 |
| R55W-9 Travel Motor | 31M5-00032 |
| R55W-7 Travel Motor | 31M5-00031 |
| R55W-7 TRAVEL ASSY | XKBF-01352 |
| R140LC-9 Travel Motor | 31Q4-40040 |
| R210LC-7 Travel Motor | 31N6-40052BG |
Hydraulic Parts
FAQ
1. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.what can you buy from us?
Engine parts, Excavator parts, Loader parts, Articulated truck parts, Marine fittings
3. why should you buy from us not from other suppliers?
Our own factory prices and huge production capacity to provide a large number of spot, we are industry and trade integration company. We are a hydraulic parts research and development, manufacturing.
4. what services can we provide?
Accepted Delivery Terms: EXW, Express Delivery；
Accepted Payment Currency:USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF;
Accepted Payment Type: T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Western Union, Cash, Escrow;
Language Spoken:English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Italian
About US
GUANGZHOU EMB MACHINERY PARTS CO., LTD. is professional in excavator hydraulic spare parts.We are committed to become the enterprise who owns most complete hydraulic parts via integrate hydraulic resources all over the world. including final drive assy,swing motor assy, control valve assy, hydraulic pump and so on. “Quality first,Customer first”is our vision,and we sincerely hope to build business relationship with customers all over the world. Welcome to our company.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2013
Total Annual:
5000000-7000000
Employee Number:
100~200
Ecer Certification：
Site Member
Welcome to Guangzhou EMB Machinery Parts Co., Ltd. - # 1 for Original and Aftermarket Caterpillar, Hitachi, Komatsu, , Hyundai, Doosan, Cummins, JCB and other parts. Established in 2013, our company is a leading supplier of excavator parts. With years of experience in the industry, we have built ... Welcome to Guangzhou EMB Machinery Parts Co., Ltd. - # 1 for Original and Aftermarket Caterpillar, Hitachi, Komatsu, , Hyundai, Doosan, Cummins, JCB and other parts. Established in 2013, our company is a leading supplier of excavator parts. With years of experience in the industry, we have built ...
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