CRRC YJCM350 Cutterhead Main Drive Motor
CRRC YJCM350 cutterhead main drive motor is a super heavy-duty low-speed high-torque permanent magnet motor for extra-large shield equipment. It is specially developed for long-distance tunneling projects with high proportion of hard rock, boulder and gravel strata. Reinforced rotor, stator and bearing structure greatly improve the ability to resist repeated impact load during rock breaking.
The upgraded cooling system can effectively control temperature rise under long-time full-load operation. It is equipped with comprehensive real-time monitoring sensors for winding temperature, vibration and bearing status, supporting intelligent operation and fault diagnosis. It is widely used in cross-sea tunnel, deep buried super large tunnel 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 YJCM350 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: | YJCM350 |
| Rated Power: | 350 kW |
| Rated Voltage: | 690 V |
| Rated Current: | 365/359/360 A |
| Rated Speed: | 743/860/991 rpm |
| Rated Torque: | 4501/3887/3372 N·m |
| Rated Efficiency: | 94% |
| Inverter Model: | YX-L690-400DG |
| Inverter Power: | 400 kW (Heavy Duty) |
| Inverter Voltage: | 600/690 V |
| 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.

Engine Sale Manual

Installation Drawing

Installation Manual

Operation Manual

Parts Catalogue

