CRRC YJCM400 Cutterhead Main Drive Motor
CRRC YJCM400 cutterhead main drive motor is the top high-power model of this series, designed for ultra-large diameter shield machines used in hard rock and complex composite stratum tunneling. It adopts cutting-edge high power density permanent magnet electromagnetic design, to deliver ultra-high stable low-speed torque output for large cutterhead cutting hard rock, boulder and dense gravel. The whole machine adopts fully reinforced mechanical structure, high-grade insulation and high-capacity cooling system to support long-cycle continuous full-load excavation.
Multi-stage heavy-duty sealing and high-level anti-corrosion protection effectively resist muddy water, salt mist and sediment erosion in deep tunnel. It is equipped with comprehensive status monitoring interfaces to realize real-time operation data collection, fault early warning and intelligent control, applicable to cross-sea tunnel, deep-buried ultra-large tunnel and other major underground engineering projects.
We provide comprehensive lifecycle support for all products, including equipment supply, on-site installation and commissioning, maintenance training, spare parts supply and continuous technical troubleshooting services.
Advantages of CRRC YJCM400 Cutterhead Main Drive Motor
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Constant‑torque starting with large breakout torque, effectively reducing cutterhead jamming risk in soft soil and composite strata.
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Compact overall dimension, well‑suited for narrow installation space inside medium‑small shield cabin.
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Optional air‑cooled / water‑cooled cooling scheme, ensuring stable performance under long‑time continuous heavy‑load operation.
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Optimized bearing insulation structure suppresses bearing electro‑corrosion, improving service life under frequent load fluctuation.
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Excellent compatibility with shield‑special frequency converter, fast torque response, convenient on‑site inspection and component replacement.
Technical Specifications
| Motor Model: | YJCM400 |
| Rated Power: | 400 kW |
| Rated Voltage: | 690 V |
| Rated Current: | 398 A |
| Rated Speed: | 992 rpm |
| Rated Torque: | 3851 N·m |
| Rated Efficiency: | 94.5% |
| Cooling Method: | Air cooling, Water cooling |
Model |
Rated Power |
Rated Voltage |
Rated Current |
Rated Speed |
Rated Torque |
Rated Efficiency |
| YJCM75 | 75 kW | 400 V | 138 A | 895 r/min | 800 N·m | 93 % |
| YJCM90 | 90 kW | 380 V | 170 A | 990 r/min | 868 N·m | 93.2 % |
| YJCM110A | 110 kW | 200 V | 200 A | 991 r/min | 1060 N·m | 92 % |
| YJCM110B | 110 kW | 400 V | 194/203 A | 910/740 r/min | 1152/1420 N·m | 93.7/93 % |
| YJCM132A | 132 kW | 400 V | 237/241 A | 910/944 r/min | 1385/1335 N·m | 93.7 % |
| YJCM132B | 132 kW | 600 V | 160 A | 910 r/min | 1385 N·m | 92 % |
| YJCM160A | 160 kW | 380 V | 304 A | 930 r/min | 1644 N·m | 94 % |
| YJCM160B | 160 kW | 400 V | 280 A | 1190 r/min | 1285 N·m | 94 % |
| YJCM160C | 160 kW | 690 V | 168/180 A | 832/927 r/min | 1835/1648 N·m | 94/93 % |
| YJCM170 | 170 kW | 380 V | 335 A | 1111 r/min | 1450 N·m | 93 % |
| YJCM200A | 200 kW | 600 V | 241 A | 1190 r/min | 1605 N·m | 94 % |
| YJCM200B | 200 kW | 690 V | 220 A | 1148 r/min | 1664 N·m | 94 % |
| YJCM220 | 220 kW | 690 V | 233 A | 1190 r/min | 1766 N·m | 94 % |
| YJCM225 | 225 kW | 690 V | 233 A | 1258 r/min | 1708 N·m | 94 % |
| YJCM250 | 250 kW | 690 V | 260 A | 990 r/min | 2412 N·m | 94 % |
| YJCM300 | 300 kW | 690 V | 310 A | 990 r/min | 2890 N·m | 94 % |
| YJCM350 | 350 kW | 690 V | 365/359/360 A | 743/860/991 r/min | 4501/3887/3372 N·m | 94 % |
| YJCM400 | 400 kW | 690 V | 398 A | 992 r/min | 3851 N·m | 94.5 % |
| ——END—— | ||||||
VFD Model |
VFD Power |
Rated Voltage |
Compatible Cutterhead Motor Power |
Cooling Method |
| YX-L400-090DG | 90 kW (Heavy-duty) | 380/400 V | 75 kW | Air-cooled, water-cooled |
| YX-L400-110DG | 110 kW (Heavy-duty) | 380/400 V | 90 kW | Air-cooled, water-cooled |
| YX-L400-132DG | 132 kW (Heavy-duty) | 380/400 V | 110 kW | Air-cooled, water-cooled |
| YX-L400-160DG | 160 kW (Heavy-duty) | 380/400 V | 132 kW | Air-cooled, water-cooled |
| YX-L400-185DG | 185 kW (Heavy-duty) | 380/400 V | 160 kW | Air-cooled, water-cooled |
| YX-L400-200DG | 200 kW (Heavy-duty) | 380/400 V | 170 kW | Air-cooled, water-cooled |
| YX-L690-160DG | 160 kW (Heavy-duty) | 600/690 V | 132 kW | Air-cooled, water-cooled |
| YX-L690-185DG | 185 kW (Heavy-duty) | 600/690 V | 160 kW | Air-cooled, water-cooled |
| YX-L690-220DG | 220 kW (Heavy-duty) | 600/690 V | 200 kW | Air-cooled, water-cooled |
| YX-L690-250DG | 250 kW (Heavy-duty) | 600/690 V | 220 kW | Air-cooled, water-cooled |
| YX-L690-280DG | 280 kW (Heavy-duty) | 600/690 V | 250 kW | Air-cooled, water-cooled |
| YX-L690-355DG | 355 kW (Heavy-duty) | 600/690 V | 300 kW | Air-cooled, water-cooled |
| YX-L690-400DG | 400 kW (Heavy-duty) | 600/690 V | 350 kW | Air-cooled, water-cooled |
| ——END—— | ||||
Technical Parameters for Pump Unit Motors (Power Range: 7.5–1100 kW)
Model |
Rated Power |
Rated Voltage |
Rated Current |
Rated Speed |
Rated Torque |
Rated Efficiency |
| YJSPM7.5 | 7.5 kW | 380 V | 15 A | 1460 r/min | 49 N·m | 92.6 % |
| YJSPM15 | 15 kW | 380 V | 28.5 A | 1475 r/min | 97 N·m | 94 % |
| YJSPM30 | 30 kW | 380 V | 58 A | 1465 r/min | 195 N·m | 95 % |
| YJSPM55 | 55 kW | 380 V | 100 A | 1480 r/min | 354 N·m | 95.8 % |
| YJSPM90 | 90 kW | 380 V | 167 A | 1485 r/min | 578 N·m | 96.2 % |
| YJSPM200 | 200 kW | 380 V | 365 A | 1488 r/min | 1283 N·m | 96.6 % |
| YJSPM315 | 315 kW | 380 V | 580 A | 1485 r/min | 2025 N·m | 96.8 % |
| YJSPM400 | 400 kW | 690 V | 391 A | 990 r/min | 3858 N·m | 94 % |
| YJSPM600 | 600 kW | 690 V | 608 A | 995 r/min | 5758 N·m | 94 % |
| YJSPM750 | 750 kW | 690 V | 825 A | 745 r/min | 9614 N·m | 94 % |
| YJSPM800 | 800 kW | 690 V | 865 A | 747 r/min | 10227 N·m | 94 % |
| YJSPM1100 | 1100 kW | 690 V | 1194 A | 595 r/min | 17655 N·m | 96 % |
| ——END—— | ||||||
Selection Table for Shield Tunneling Machine Slurry Pump Motor Variable-Frequency Drives (VFDs)
Inverter Model YX-M3K3- |
Pump Power |
Transformer Capacity |
Inverter Power |
Cooling Method |
| YX-L400-7R5DG/B | 7.5 HP (Heavy Duty) | 380/400 kVA | 7.5 kW | Air cooling, Water cooling |
| YX-L400-15DG/B | 15 HP (Heavy Duty) | 380/400 kVA | 15 kW | Air cooling, Water cooling |
| YX-L400-30DG/B | 30 HP (Heavy Duty) | 380/400 kVA | 30 kW | Air cooling, Water cooling |
| YX-L400-55DG/B | 55 HP (Heavy Duty) | 380/400 kVA | 55 kW | Air cooling, Water cooling |
| YX-L400-90DG/B | 90 HP (Heavy Duty) | 380/400 kVA | 90 kW | Air cooling, Water cooling |
| YX-L400-200DG/B | 200 HP (Heavy Duty) | 380/400 kVA | 200 kW | Air cooling, Water cooling |
| YX-L400-315DG/B | 315 HP (Heavy Duty) | 380/400 kVA | 315 kW | Air cooling, Water cooling |
| YX-L690-600DG/B | 600 HP (Heavy Duty) | 600/690 kVA | 600 kW | Air cooling, Water cooling |
| YX-L690-750DG/B | 750 HP (Heavy Duty) | 600/690 kVA | 750 kW | Air cooling, Water cooling |
| YX-L690-1100DG/B | 1100 HP (Heavy Duty) | 600/690 kVA | 1100 kW | Air cooling, Water cooling |
| ——END—— | ||||
Shield machine drive motors are core products of CRRC. These motors feature high torque, strong overload capacity, and a wide constant-power range, enabling them to adapt to all operating conditions of shield machines. With over 1,200 units installed to date, the products deliver stable and reliable performance.
| Rated Power | 110-400 kW |
| Insulation Class | Class H |
| Protection Class | IP67 |
| Cooling Method | Water Cooling |
| Bearing Brand | SKF/FAG |
| ——END—— | |
| Serial No. | Main Drive Motor Power | Project Name |
|---|---|---|
| 1 | 132Kw (Torque Shaft) | Kaiyuan West-Huaya-Wanjiali Section of Changsha Metro Line 5 |
| 2 | 132Kw | |
| 3 | Phase I Project SG5-11 Bid Section of Hangzhou Metro Line 5 | |
| 4 | Beijing Metro Line 17 of China Railway Construction Bridge Bureau | |
| 5 | Fuzhou Metro of China Railway 12th Bureau | |
| 6 | 132Kw | Bids 8, 10, 11 of Hohhot Metro Line 2 |
| 7 | Urumqi Metro Project Department | |
| 8 | 01 Bid Section of Luoyang Metro Line 1 | |
| 9 | Jinhua-Yiwu-Dongyang Intercity Railway of Hongrun Construction | |
| 10 | Urumqi Metro of China Railway Third Bureau | |
| 11 | 132Kw | Nantong Metro Line 1 of China Railway 4th & 11.17th Bureaus |
| 12 | Jiangpu Road Cross-River Tunnel of Shanghai Foundation Engineering Group Co., Ltd. | |
| 13 | Nantong Metro Line 1 of Shanghai Mechanical Construction Group Co., Ltd. | |
| 14 | Nantong Metro Line 1 of CCCC Tunnel Engineering Co., Ltd. | |
| 15 | Kunming Metro Line 5 of China Railway 20th Bureau | |
| 16 | Guangzhou Metro Lines 18 & 22 of China Railway 22nd Bureau | |
| 17 | Nantong Metro Line 1 of China Railway Third Bureau | |
| 18 | Beijing Metro Line 19 of China Railway 20th Bureau | |
| 19 | Work Area 9 of Bid Section 03 of Luoyang Rail Transit Line 1 | |
| 20 | 160Kw | Work Area 06 of Qingdao Metro Line 8 Project |
| 21 | 01 Bid Section of Luoyang Metro Line 1 | |
| 22 | Fuzhou Metro Line 5 | |
| 23 | 160Kw | Slurry Balance Double Shield TBM of China Railway 16th Bureau in Kunming |
| 24 | 250Kw | GFHD-2 Bid Section of Guangzhou-Foshan Ring Line of Guangzhou Metro |
| 25 | Yellow River Crossing Project of Yinchuan Hualing Power Plant | |
| 26 | Intermediate Air Shaft of Guangzhou Metro Lines 18/22 | |
| 27 | Guangzhou Metro Lines 18 & 22 of China Railway 11th Bureau & China Railway Construction Bridge Bureau | |
| 28 | Earth Pressure Balance Shield Machine of Hangzhou Xiaohong Group | |
| 29 | Slurry Balance Shield Machine of China Railway 16th Bureau in Hangzhou | |
| 30 | Guangzhou Metro Lines 18 & 22 of China Railway 25th Bureau | |
| 31 | Pazhou West-Xicun of China Railway 14th Bureau in Guangzhou | |
| 32 | Work Area 1 of the 9th Branch of Guangzhou Metro Line 22 | |
| 33 | 250Kw | Work Area 4 of Guangzhou Metro Line 18 |
| 34 | 160kW Permanent Magnet Explosion-Proof | TBM Shield Machine for a Coal Mine in Panzhou of Jiutai Bangda |
| 35 | Henan Suburban Coal Mine | |
| 36 | 350kW | Earth Pressure Balance Shield Machine for Moscow Metro Southeast Ring Line of China Railway 16th Bureau |
| 37 | Hangzhou Minshan Road Tunnel | |
| 38 | 110kW | Taipei Metro Wanda Line |
| 39 | 400kW | Fuzhou Coastal Express Line |
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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Installation Drawing

Installation Manual

Operation Manual

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