FH400B Series Hydraulic Retarder

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Retarder Model:
Max Input Rotation :
Braking Torque :
Oiling mass (L) :
Supplied Gas Pressure :
7-10 bar
Control Medium :
Compressed air
Working Current(A) :
FH400B In-line Hydraulic Retarder

FH400B Series Hydraulic Retarder

  • Effectively reduce the wear of the main brake, extend the tire life, ensure the safe operation of the car.
  • Able to brake for a long time and high power without heat fade.
  • Large braking torque and unit mass braking torque.
  • Stable braking and high comfort of the vehicle.
  • Quick response of braking and relieving braking.
  • Low temperature at work, no hidden danger to the whole vehicle.
  • Lightweight design, providing the safety of the vehicle, without increasing the fuel burden.
  • Safety electric control, no interference to whole vehicle electrical system.
  • Short axial dimension, easy to install.
Retarder Model
Max Input Rotation
Braking Torque
Oiling mass
FH400B 2800rpm 4000N•m 9L 102kg
FHB320B 5000rpm 3200N•m 5.5L 70kg

1.Constant speed Fuction

When the retarder works in constant speed gear, the vehicle is downhill at constant speed, and the speed fluctuation is less than 3 km / h without obvious shock.

2.Braking Function

In different brake stalls, Hydraulic retarder can achieve the corresponding braking torque function.

3.Coordination Function

When the vehicle such as ABS, throttle, automatic transmission have the requirements of the retarder to quit work, the retarder has the function of braking.

4.Breakdown Alarming Function

When the hydraulic retarder fails or exceeds its set capacity, the controller can provide optical or acoustic alarm signals.


Headquartered in the special economic zone of Shenzhen, China, and operating globally, EMAC International Group concentrate in providing power driven system solution as well as complete equipment for transportation, industrial, maritime and energy application filed.

Originating from EMAC International Trade Co., EMAC International Group (Shenzhen Sinogen Power Technology Ltd) was established in 2010. To meet the needs of our customers. EMAC now has three subsidiaries, three domestic joint ventures, two overseas joint ventures and five independently registered brand trademarks. This has enabled us to work across 160 countries and establish relationships with over 5000 business partners.

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