BasicStop profile dampers

BasicStop

The BasicStop profile dampers feature high-performance plastic and a specifically developed profile.
It acquires its unique properties after receiving a special treatment. These properties allow it to absorb maximum amounts of energy even under the toughest conditions, while also achieving high damping rates.

Our expertise – your advantages:

  • TPC high-performance plastic:
    Thermoplastic elastomer on a copolyester basis
    High durability and resistance to media*
    No swelling, embrittlement or decomposition of the material, as is the case with rubber*
    Large temperature range

  • Special process for conditioning the material:
    High damping percentage and high energy absorption in the smallest space
    Reliable return behavior
    Increased service life in comparison to rubber pads

  • Design of the structure:
    Standard product portfolio with 3 series x 2 degrees of hardness
    Individual configuration for customized solutions possible

  • Expertise in design and production at Zimmer

  • Usability independent of velocity

  • 100% recyclable due to thermoplastic properties

* For chemical and media resistance see page  

 

The series at a glance

Axial Standard

  • Design: Axial
  • Degrees of hardness: 55D, 40D
  • Energy absorption per stroke: 2 - 2,951 Nm
  • Damping percentage: up to 75%

 

Axial Advanced

  • Design: Axial
  • Degrees of hardness: 55D, 40D
  • Energy absorption per stroke: 450 - 17,810 Nm
  • Damping percentage: up to 65%

 

 

Radial Standard

  • Design: Radial
  • Degrees of hardness: 55D, 40D
  • Energy absorption per stroke: 1.2 - 427 Nm
  • Damping percentage: up to 60%

 

 

 

Functional sequence

1. Home position

Unstressed in unshaped state

2. Compression with damping

External force or kinetic energy (impact) compresses the profile damper

  • Walls are deformed by the stroke and expand or curve outward due to the structural design.
  • Due to the structural structure of the material body, a force (damping or supporting force) is generated via the stroke that counters the movement.
  • Due to the friction inside the TPC material, a large proportion of the kinetic energy is transformed into heat (viscoelastic damping).

3. Returning

  • The part of the kinetic energy that is not damped during the stroke is stored as spring energy in the material body (viscoelastic damping).
  • This spring energy causes a return of the body to the starting position via the return stroke (viscoelastic damping).
  • Rebound of the mass as long as the acting force of the mass is less than the return force of the structural damper.
  • Ratio of damping energy to kinetic energy in the impact is designated as damping percentage.

 

 

Characteristics

Function

  • Unlike hydraulic industrial shock absorbers, material dampers do not damp 100% of the absorbed energy. Instead, they convert only a specific percentage of the kinetic energy into heat. This is called the damping percentage. The residual energy, on the other hand, is stored in the material as spring energy, which is released again when the damper is reset.

  • Conventional rubber pads only have a very small damping percentage and are more of a spring than a damper. Use of these pads hardly takes any kinetic energy from the system, which in turn can lead to damage to the system.

  • This is where the BasicStop brand profile dampers are setting new standards in the realm of material damping with their high damping percentage. Through the friction in the material, a large part of the kinetic energy is converted into heat, whereupon the structural damper returns to its original form (viscoelastic damping).

     

 

Service life

  • Rubber materials fail after certain intervals of time due to settling losses, creep behavior, media incompatibility or overloading, which results in high maintenance costs for the user. With BasicStop, long service life is achieved even under the toughest conditions, which dispenses with unnecessary maintenance costs.

 

Characteristics and damping percentage of the shock absorber curve

  • The characteristic of the shock absorber curve for force over stroke is dependent upon the structural design of the respective series, but, in contrast with hydraulic shock absorbers, the impact velocity has no effect on the characteristic. This is why material dampers can be used irrespective of the velocity.

  • However, the damping percentage depends upon the impact velocity. This increases in certain areas with increasing velocity, until it reaches its maximum. The damping percentage also increases with an increasing degree of hardness of the TPC.

     

Product key

Selection of profile dampers

by series, size and degree of hardness

TPC - AS 45 X 50 H

Material

TPC Thermoplastic elastomer on copolyester basis

      

Series

AS Axial Standard

AA Axial Advanced

RS Radial Standard

Height [mm]

 

Ø Axial design [mm]

Depth Radial design [mm]

Degree of hardness

M Medium (Shore 40D)

 

Notes:

  • Delivery including a nickel-plated special screw for simple and safe installation.
  • The energy absorption and the impact velocity can be determined with the help of the shock absorber selection guide online at www.zimmer-group.com/pdti or with the formulas and calculations listed in the catalog.
  • For the installation space, use the dimensions without loads and at complete deformation.

 

Applications

Emergency stop protection in the movement axis of a spindle tailstock

End-position damping in the linear axes of production modules from ELHA

 

Emergency stop damping on a portal crane

 

Machine door damping in a machining center