Shock absorbers, linear dampers, and dashpots are devices designed to provide absorption of shock and smooth deceleration in linear motion applications.   They may be mechanical (e.g., elastomeric or coil spring), or rely on a fluid (gas, air, hydraulic), which absorbs shock by allowing controlled flow from outer to inner chamber of a cylinder during piston actuation. The piston rod is typically returned to the unloaded position with a spring.   Shock absorbers typically contain...
Learn More about Shock Absorbers, Linear Dampers, and Dashpots


Q & A on Shock Absorbers, Linear Dampers, and Dashpots

We asked our users for their input on Shock Absorbers, Linear Dampers, and Dashpots. Here are the results of 54 users familiar with Shock Absorbers, Linear Dampers, and Dashpots.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice |

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing shock absorber, linear damper and dashpot design?
6 answers
Answers:
Active shocks that control body-roll proportional to lateral acceleration.
~Phillip D, Research & Development, Moe, Australia
Visco Elastic Damper
~Paresh A, CEO, Satara, India
Computer controlled
~Engineering, Design, Escobedo, Mexico
Material of metal.
~Technical Support/Services, Hong Kong
Servo motor brake
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.
Nothing New
~RE Brink, General Management, Gauteng, South Africa

Q:
From your perspective, which companies are creating the most innovative shock absorbers, linear dampers and dashpots?
7 answers
Answers:
Active suspension developments, Koni, ADtranz.
~Phillip D, Research & Development, Moe, Australia
Its mostly a matter of availability.
~RE Brink, General Management, Gauteng, South Africa
ACE controls
~Paresh A, CEO, Satara, India
Gas Spring.
~Technical Support/Services, Hong Kong
Enidine
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.
Sandia
~Alexander B, Lecturer, Beer-sheva, Israel
ACE
~General Corporate Mgmt, Wapenveld, Netherlands

Applications and UseTop

Q:
What are some of the applications you have used shock absorbers, linear dampers and dashpots for?
15 answers
Answers:
Cant (log) bumper/cushion Sharp top roller chain conveyor cushion Carriage (sawmill breakdown) Bumpers (each end) General cushioning for pneumatic cylinders
~Bo M, Maintenance Manager, Allendale, SC
Controlling electrical DC control gear Energy absorption of moving bridges General maintenance of plant
~Colin L, Engineer, Inverness, UK
Pad Printing Machines Robotics Pneumatic Automation Special Purpose Machines Paper Printing Machines
~Paresh A, CEO, Satara, India
Banknotes Sorting Systems bander's mechanical motion.
~Technical Support/Services, Hong Kong
Dashpots are used during opening of Grab bucket.
~Brindaban B, Engineering Consultant, Jamshedpur., India
For damping AHU's and cooling tower vibrations
~Engineering, Consulting, Alexandria, Egypt
Snowmobiles, mountain bikes, cars, dirt bikes
~Research & Development, Claremont, Canada
Moving load absorb, rodless cylinder
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.
Blast wave protection technology
~Alexander B, Lecturer, Beer-sheva, Israel
Active vehicle suspensions.
~Phillip D, Research & Development, Moe, Australia
Materials handling plants
~RE Brink, General Management, Gauteng, South Africa
Containers electronics
~General Corporate Mgmt, Kirchheim / Teck, Germany
Packaging machines
~General Corporate Mgmt, Wapenveld, Netherlands
Motorbike
~Manzoni Roberto, Research & Development, Lesmo, Italy
Stamping
~Engineering, Design, Escobedo, Mexico

Q:
Please share with us any “non-standard” applications that shock absorbers, linear dampers and dashpots have been used for.
4 answers
Answers:
On heavy tillage equipment to control shock loads, on overload trip mechanisms.
~Phillip D, Research & Development, Moe, Australia
Food Industry
~Paresh A, CEO, Satara, India
Cargo docks
~Engineering, Design, Escobedo, Mexico
Rooler move
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.

Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of shock absorbers, linear dampers and dashpots?
5 answers
Answers:
Vehicles being fitted with shocks with valve settings too high, consequently tearing shock mounts.
~Phillip D, Research & Development, Moe, Australia
One size fits-all is usually not advisable.
~RE Brink, General Management, Gauteng, South Africa
Incorrect stroke & adjustment
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.
Other than wasting money?
~Engineering, Design, Escobedo, Mexico
Mass confused for Weight.
~Paresh A, CEO, Satara, India

FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
9 answers
Answers:
- Minimum heat generation after each cycle of operation; - no air entrapment inside the dashpot; - no vacuum generation on either side of piston; - adjustment of speed of dashpot to be provided at easily accessible location out side; - long life of seals under hostile environment.
~Brindaban B, Engineering Consultant, Jamshedpur., India
That active systems be fitted as "original equipment" on all vehicles, including heavy transports and rolling stock.
~Phillip D, Research & Development, Moe, Australia
Visco elastic damping, proportional linear dashpot
~Paresh A, CEO, Satara, India
Economical, simple, easy maintained
~Bo M, Maintenance Manager, Allendale, SC
Adjustable features and Damping
~RE Brink, General Management, Gauteng, South Africa
Maintainability, self servicing
~Colin L, Engineer, Inverness, UK
Specs guides of all types
~Engineering, Design, Escobedo, Mexico
Smooth&right position
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.
More capacity
~General Corporate Mgmt, Wapenveld, Netherlands

Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using shock absorbers, linear dampers and dashpots?
4 answers
Answers:
Calculate the energy selected per cycle and also ensure that you know the acceptable reaction force.
~Paresh A, CEO, Satara, India
Right force, stroke, total energy
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.
Be meticulous selecting
~Engineering, Design, Escobedo, Mexico
Seek expert's advice.
~Brindaban B, Engineering Consultant, Jamshedpur., India

Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of shock absorbers, linear dampers and dashpots?
4 answers
Answers:
You have to make sure what you require for the job and stay away from odd features to tickle your fancy only.
~RE Brink, General Management, Gauteng, South Africa
Do not confuse between the energy per cycle and Effective mass per cycle.
~Paresh A, CEO, Satara, India
Select the one you need with the strongest structural body available.
~Engineering, Design, Escobedo, Mexico
Total energy
~Henry Chen, Marketing/Sales, Taichung, Taiwan,r.o.c.


Related eNewsletters
See More

Also on GlobalSpec...
  • Receive email updates on new products and suppliers of interest to you
  • Online, interactive conferences / trade shows featuring latest news and industry trends
  • CR4
    Q&A and discussion for the engineering, scientific, and technical community
  • Engineering and scientific news from hundreds of sources
  • Industrial manufacturers and distributors