Since 1952 when our predecessor company "Niigata converter" started operation, we extensively have contributed to society through our products for mainly Japanese railway business. Our products for railways are Power-shift transmission, Final drive gearbox, etc. for DHMU, DHL, and working vehicles by diesel engine drive. In the history of about 70 years, our products have not only had a high share in the domestic market but also been sold all over the world.
Basic information
Our transmission is categorized as "hydromechanical transmission" which combines a torque converter with a wet multiplate clutch. Our standard specifications are as follows.
- Torque converter
- Torque converter realizes a smooth shockless start of vehicle and increases the torque at a low speed of vehicle.
- Power-shift-transmission
- Power-shift-transmission provides forward/reverse shifts and multiple speed steps. And a direct clutch option is available.
- TCU "Transmission Control Units
- TCU has the functions of an automatical smooth clutch shifting, a monitoring system, an abnormal alarm, etc.
TACN series
- Features
- (1)Underfloor type
- (2)For Diesel Hydraulic Multiple units or Working car
- (3)High-efficiency is realized by Direct clutch:Maximum efficiency 97%, low fuel consumption
Detailed dimensions and catalog download
TDCN series
- Features
- (1)Drop box-type
- (2)For Working car or Locomotive
- (3)Various options available
Detailed dimensions and catalog download
Optional Specifications
- Brake function to reduce speed
- This function is an auxiliary brake to reduce the vehicle speed while the vehicle is running downhill in a mountainous area.
Optional device:Hydraulic Retarder Brake, Multiple-disc Brake, Engine Brake - Constant low speed control
- TCU controls a transmission brake effort to realize a constant low speed of vehicle.
Optional device:Multiple-disc Brake - Power Take Off (PTO)
- Generator, Oil pump and Fan
- Power Take In (PTI)
- Oil motor and Electrical motor
- Others
- Hybrid (Parallel Hybrid), Parking Brake, Cut-off-shifter (one-side-output), Customized design, etc.
Transmission classification
| Major classification | Integrated type(T/C･T/M) [T/C=Torque converter] [T/M=Transmission] |
Separate type | |
|---|---|---|---|
| Torque converter(T/C) | Transmission(T/M) | ||
| Major Model name | TACN,TDCN | DF,DA,DB,CB,FWN | TDN |
| Features |
|
|
|
| Reference layout |
|
|
|
| Catalog |
|
|
|
|
|||
 |
|||
