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BHDA Hydraulic Damper Heavy-Duty Series

Overview

BHDA  Hydraulic Damper the adjustable air-bag-like heavy-duty Hydraulic Damper with inside air bag design, it increased adjustable components on the basis of BHD Hydraulic Damper products stroke less than 300mm. To rotate the adjustment knob-changing the damping force to get the best energy absorption in different working conditions, provide best convenient model selection and application flexibility for customers since single model can meet kinds of different work stations, end users also can adjust the knob to recover the best energy absorption if some station changes.

 
Adjustment Skills

Marked 1~5step range to rotate, “1”means to get the minimum damping force, the relevant impact velocity is the biggest, “5”is the maximum and impact velocity is the smallest.
Please rotate the knob step by step start from 1, enlarge number from small to large base on the damping force. It will damage the buffers if rotate from large number to small.
Need loosen the set screw before you rotate; after finished, please remember to tighten the screws in order to avoid adjustment knob moving caused best step changed in working.


 
Performance and Advantages

1. Damping force can be changed, provide best convenient model selection and application flexibility for customers.
2. The design meets the standard of OSHA, AISE, CMMA and other rules like DIN and FEM safety regulations
3. Impact velocity range: 0.75~3.25m/s, maximum impacted cycle times is 60 times/hour
4. Nitrogen Gas bladders design for piston rod restoration purpose, resilience force is small.
5. Special epoxy painted cylinders and high quality chrome plated piston rod has good causticity to endure bad outside working condition  
6. More accessories can be selected: including Bellows, U clamp, safety chain and sensors for piston rod restoration.
7. Special seal material and unique hydraulic oil, the standard temperature range from (-10℃~60℃) extended to(-35℃~100℃).
8. Customized service, provide special design products per request.

 

Ordering Sample

Application data needed
Moving Body Weight:W (kg)
Impact Velocity:V(m/s)
Driving Force:Fp(N)
Number of buffers in Parallel:n (pcs)
Impact Cycles per hour:a(Cycle/hour)
Others(Such as Temperature,Environment etc.)

 

Note:
1. BHDA Series is customized products, need users’ application data to design correct orifices
2. We recommend install piston rod bellow, if the working condition is dusty or bad, especially for long life cycle requested.
  3. If the install location is higher than 2 Meters, we recommend you use Safety-Chain to avoid falling accident.
4. If you need the signal that shows piston rod completely returned or not, we recommend install safety sensor.

 

Parameters
 
Model Stroke
(mm)
Max.Energy
Range
/Cycle
(Nm/C)
ET
Cylinder
Diameter
(mm
Page
  BHDA3.0x(Stroke)
50-1422
9600-4170294
130
35-36
BHDA4.0xStroke)
50-1200
15100-271600
200
35-36
  BHDA5.0x(Stroke)
100-1200
46700-467000
215
35-36
  BHDA6.0x(Stroke)
100-1200
76500-805000
275
35-36