Purros specializes in manufacture and sales of Hydro Speed Regulator, Multi-Spindle Drill Heads and Self-Feeding Drill Units.
Our information
  • PURROS Machinery Co., Ltd.
  • Add: #58 YuanDian Road, YuanQiao, HuangYan District, Taizhou City, Zhejiang Province, China.
  • P.C.: 318000
  • Tel: +86 576 89898883
  • Fax: +86 576 89891099
  • Mobile: +86 13676697345
  • E-mail: amy@purros.com
  • Buy Multi Spindle Heads online
  • Automatic Drill,Special Purpose Machines
Home: Hydro Speed Regulator



The Principle of hydraulic damper:

Hydraulic damper(Hydro Speed Regulator) is a device that to reduce the resistance of movements, and then depletes the kinetic energy. Hydraulic damper is widely used in automotive and medical equipment; the feature is the resistance changes with running speed. Obviously, it can play a buffer role in connected institutions. The most important feature is that the force of the gas spring changes with velocity of movement. Significantly, when the force point of gas spring movement faster, then the resistances of the spring is increased. In other case, when the force point movements is slow, almost no resistances. 


The structure of the hydraulic damper:

1. Adjusting button of speed

2. Scale Indicator of Progress

3. Piston Rod

4. Hydraulic Cylinder

5. Storage Tank

6. Fixed Block of Body

7. Clamp Bolt


1. Compact structure, direction of installation is free.

2. Adopt full-sealed structure that isn’t required to fill with work oil, Hydro Speed Regulators can keep long-time and stable control function.

3. Quick load change only causes little change of control speed, it can get stable feed speed.

4. Feeding speed can be easily adjusted by speed button.






  • RB-2415            RB-2430          RB-2460          RB-2480

  • RB-24100        RB-24120          RB-3140          RB-3160  
  • RB-31100


PURROS  R-A Series


  •  R2460-A           R2480-A         R24100-A        R24150-A 

  •  R3180-A         R31130-A        R31180-A 





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We have various types of Hydro Speed Regulators, Multi-Spindle Drill Heads and Self-Feeding Drill Heads(Units), warmly waiting for you to inquire.