DMP 20/29/370 pages

STANDARD

ENG

www.phytron.eu/DMP

DMP 20 / 29 / 37
Inertial damper for stepper motors
of size 25 / 32 / 42 (NEMA 11 / 14 / 17)
DMP is an inertial damper for stepper motors.
It delivers an excellent performance over a
wide frequency because of its specific structure. This minimises settling times in the
start-stop operating region and avoids system resonances.
Thus, the DMP prevents not only vibrationinduced material fatigue and vibration-induced positioning errors, but also significantly
reduces the acoustic noise. If certain perturbances are not adequately compensated for,
the motor can lose steps. The resulting loss
of torque and precision can drastically affect
the application‘s performance.
phytron‘s stepper motors run very smoothly
due to their construction, hence a damper is

not needed for most precision applications.
However, should a Phytron motor operate in
a resonance range, the damper is easily deployed to further enhance the motor‘s characteristics and stability.

Application
Greater requirements for smooth running
and precision are often necessary, especially
in optics. When moving samples or optics
via a joystick, the improvements in the move
quality for smoothness, very low acoustic
noise and precision are visibly and audibly attained. Accurate and consistent movements
with fast settling times of the driven system
are significantly improved.

In Focus
• Inertial damper for stepper motors
size 25 / 32 / 42 (NEMA 11 / 14 / 17)
• External diameter 20, 29 or 37 mm
• Mounts onto shafts of 2.5; 3; 4; 5 mm
or customised
• Materials
- Allows fitting to aluminium / plastic
- Stainless steel fixing screws

• Applicable standards
- Protection class IP 62 (IEC 34)
- Headless screws for mounting
ISO 4027 (DIN 914/A2)

• Environmental conditions
- Ambient temperature 0 to +60 °C
- Storage temperature -20 to +70 °C

Decay Process

Housing
Silicon gel

Shaft coupling

Symmetric rational
Load carrier

without damper

Edition 2012 July

with damper

Damper design