The TMG 07543 type hydraulic transmission (hereinafter referred to as the transmission) consists of a YJH315 type hydraulic torque converter and a transmission with four forward gears and three backward gears.
YJH315 The hydraulic torque converter is a single-stage two-phase integrated torque converter, with the characteristics of high efficiency and large torque change ratio. The gearbox is downshaft type, with the front four and rear three shift function, built-in working oil pump, external force port.
2. Main technical parameters
| Rated input power of the matching engine | 75kW |
| Rated input speed of the matching engine | 2400r / min |
| Input shaft steering (facing the transmission output) | counter clock wise |
| Working fluid | No.6 or No.8 hydraulic transmission oil |
| Main oil pressure and retaining oil pressure | 1.6MPa~1.9MPa |
| Torque converter oil inlet pressure | 0.4MPa~0.8MPa |
| Torque converter oil return pressure | 0.22MPa~0.4MPa |
| Working oil temperature | 80ºC ~100ºC |
| Rated voltage of the solenoid valve | DC24V |

About TMG
Our products include: underground trackless mining equipment (underground loaders, underground mining trucks, utility vehicles, drill jumbos, drivetrain system transmission, torque converter, axle); engineering equipment ( wheel loaders, backhoe loaders, excavators, telescopic handlers,graders, articulated dump trucks); drive-train system (transmission, torque converter, axle).
Besides,as a technology oriented enterprise, we also provide customers with solutions including drive-train system customization, vehicle transformation and project contracting etc.
| Improvement | |||||||
| The torque converter is easy to heat up | |||||||
| Inability to climb hills | |||||||
| Climbing long slopes is prone to overheating | |||||||
| Punch | |||||||
| Easy to burn the friction plate | |||||||
| Loud noise | |||||||
| Cause Analysis | |||||||
| Small horse-drawn cart | |||||||
| The hydraulic flow of the charging oil is low and the pressure fluctuates greatly | |||||||
| Comparison with Top Euro brand | |||||||
| Customized design to solve customer pain points | |||||||
| Short lead time, 3 months | |||||||
| Electrically controlled shifting and automatic shifting mode are adopted to reduce shifting impact and protect gears from damage | |||||||
| Hydraulic torque converter has large circulation, large transmitted torque, large traction and strong climbing ability. Change | |||||||
| Torque is not easy to heat up. | |||||||
| The clutch structure is improved to reduce the friction plate burning phenomenon caused by the inaccurate control of the engagement time of the two clutches during the shifting process. | |||||||
| The gear is thickened to improve the reliability of the gearbox. Higher reliability and longer life. |
| Payload 6~7 ton Calculation details | ||||||||
| Diesel Engine Model | kW | Torque Converter | Transmission | Traction kN | 1st km/h | 2nd km/h | 3rd km/h | 4th km/h |
| Deutz BF6M 1013EC165KW | 165 | YJ330 (C273.1) | RC33429 | 175.53 | 4.87 | 9.68 | 18.28 | 25.66 |
| Deutz BF6M 1013EC165KW | 165 | YJ330 (C273.1) | RC33428 | 178.74 | 4.79 | 9.52 | 17.97 | 24.57 |
| CUMMIS B67CS4 | 162 | YJ330 (C273.1) | RC33429 | 156.47 | 4.84 | 9.63 | 17.12 | 25.04 |
| CUMMIS B67CS4 | 162 | YJ330 (C273.1) | RC33428 | 166.15 | 4.56 | 9.08 | 17.19 | 23.59 |
| Volvo TAD850VE | 162 | YJ330 (C273.1) | RC33429 | 159.71 | 5.06 | 10.28 | 18.82 | 27.53 |
| Volvo TAD850VE | 162 | YJ330 (C273.1) | RC33428 | 169.57 | 4.76 | 9.44 | 17.72 | 24.11 |








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