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CRRC YJCM300 Cutterhead Main Drive Motor

CRRC YJCM300 cutterhead main drive motor is a high-power permanent magnet main drive motor for extra-large diameter shield machines. It is designed for heavy-load tunneling in hard rock and composite strata, providing strong and reliable driving power for large cutterhead. The motor adopts high power density design, with large torque reserve and outstanding instantaneous overload performance.It adopts high-grade insulation system and enhanced cooling scheme, meeting the requirement of non-stop continuous excavation for long distance.

The whole machine is equipped with heavy-duty anti-corrosion and multi-stage sealing structure, adapting to high humidity, muddy and dusty tunnel cabin environment. It is suitable for cross-river, cross-sea and other super large tunnel engineering.

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 YJCM300 Cutterhead Main Drive Motor

  • Constant‑torque starting with large breakout torque, effectively reducing cutterhead jamming risk in soft soil and composite strata.

  • Compact overall dimension, well‑suited for narrow installation space inside medium‑small shield cabin.

  • Optional air‑cooled / water‑cooled cooling scheme, ensuring stable performance under long‑time continuous heavy‑load operation.

  • Optimized bearing insulation structure suppresses bearing electro‑corrosion, improving service life under frequent load fluctuation.

  • Excellent compatibility with shield‑special frequency converter, fast torque response, convenient on‑site inspection and component replacement.

Technical Specifications

Motor Model: YJCM300
Rated Power: 300 kW
Rated Voltage: 690 V
Rated Current: 310 A
Rated Speed: 990 rpm
Rated Torque: 2890 N·m
Rated Efficiency: 94%
Inverter Model: YX-L690-355DG
Inverter Power: 355 kW (Heavy Duty)
Inverter Voltage: 600/690 V
Cooling Method: Air cooling, Water cooling

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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

YJSPM7.57.5 kW380 V15 A1460 r/min49 N·m92.6 %
YJSPM1515 kW380 V28.5 A1475 r/min97 N·m94 %
YJSPM3030 kW380 V58 A1465 r/min195 N·m95 %
YJSPM5555 kW380 V100 A1480 r/min354 N·m95.8 %
YJSPM9090 kW380 V167 A1485 r/min578 N·m96.2 %
YJSPM200200 kW380 V365 A1488 r/min1283 N·m96.6 %
YJSPM315315 kW380 V580 A1485 r/min2025 N·m96.8 %
YJSPM400400 kW690 V391 A990 r/min3858 N·m94 %
YJSPM600600 kW690 V608 A995 r/min5758 N·m94 %
YJSPM750750 kW690 V825 A745 r/min9614 N·m94 %
YJSPM800800 kW690 V865 A747 r/min10227 N·m94 %
YJSPM11001100 kW690 V1194 A595 r/min17655 N·m96 %
——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/B7.5 HP (Heavy Duty)380/400 kVA7.5 kWAir cooling, Water cooling
YX-L400-15DG/B15 HP (Heavy Duty)380/400 kVA15 kWAir cooling, Water cooling
YX-L400-30DG/B30 HP (Heavy Duty)380/400 kVA30 kWAir cooling, Water cooling
YX-L400-55DG/B55 HP (Heavy Duty)380/400 kVA55 kWAir cooling, Water cooling
YX-L400-90DG/B90 HP (Heavy Duty)380/400 kVA90 kWAir cooling, Water cooling
YX-L400-200DG/B200 HP (Heavy Duty)380/400 kVA200 kWAir cooling, Water cooling
YX-L400-315DG/B315 HP (Heavy Duty)380/400 kVA315 kWAir cooling, Water cooling
YX-L690-600DG/B600 HP (Heavy Duty)600/690 kVA600 kWAir cooling, Water cooling
YX-L690-750DG/B750 HP (Heavy Duty)600/690 kVA750 kWAir cooling, Water cooling
YX-L690-1100DG/B1100 HP (Heavy Duty)600/690 kVA1100 kWAir 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.

The picture of Sale Manual showing the accessories and scopes of supply.

Engine Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

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Sales Manager-Mrs.Wendy Fu

Spare Parts Sales-Miss. Nora Cao

After-Sales Manager-Miss. Tina Zhang

Merchandiser-Miss. Yoyo Tao

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