This website uses cookies to ensure you get the best experience on our website.


Multiple heavy-duty bus 6-post durability test systems for China

golden dragon

Following on from the successful installation of a heavy-duty 6-post ride-simulation system for truck durability testing at Sichuan Hyundai Motor Company (CHMC) in China during 2014, Servotest has received three more orders for systems of this type within the last 8 months.

Higer bus

 These systems will be used for duability testing bus, coach and other speciality vehicles by leading manufacturers in this sector, specifically

Zhong Tong Bus 2

  • The Golden Dragon Bus Company Limited, based in Xiamen, Fujian province

  • The Higer Bus Company Limited, based in Suzhou, Jiangsu province

  • The Zhongtong Bus Holding Company Limited, based in Shandong province.

CHMC from top c

All of these systems benefit from high-capacity hydrostatic-bearing servo-actuators with fully-integrated and automated hydraulic pre-load support. These low-friction actators utilise Servotest's own design of 3-stage servovalves and can deliver high-fidelity time-domain motion replication at velocities up to 3 m/s and accelerations in the region of 22 to 27g at the wheel-pan.

The rigs are controlled using Servotest's Pulsar disitributed digital servo-control system via an operator-interface that is taylored to each specific customer's requirements.

Hydraulic power is provided by expandable high-capacity water-cooled hydrauic power units, driven by 8x 132kW motor/pump units, working together to deliver 2,000lpm of hydraulic flow at 280bar.

Guided wheel-base & track-width adjusment is achieved using a proven manual lock/unlock system with machine ball-lifters to support actuator repositioning without an over-head crane.

CHMC under floor c










Quick Information


  • Renewal of ISO9001:2015 & ISO14001:2015 
    Servotest Announce the Renewal of ISO9001:2015...
  • Sheffield Laboratory for Verification & Validation (LVV)
    Laboratory for Verification & Validation...
  • MRB Rubber Engineering Laboratory
    Grand Opening : MRB Rubber Engineering...
  • Cross-fault seismic simulation test
    World first: Cross-fault bi-axial earthquake...
  • Heavy-duty bus 6-post rigs
    Multiple heavy-duty bus 6-post durability test...
  • Servotest 60th anniversary
    Servotest celebrates 60th...
  • NJSC tilting damper test machine
    High-performance tilting DTM for NJSC,...
  • New agent setup for India
    New agent setup for India market Servotest...