RasuunDrive® MedTec 8mm – Type 1
Designed for use in medical technology and lubricated with Barrierta, the RasuunDrive® MedTec 8mm – type 1 micro linear actuator system has a travel range of 10 mm with a length of just 45 mm.
This exceptional ratio between length and travel range is made possible through the parallel arrangement of linear roller table and gear-spindle motor.
The system is driven by a stepper motor with 20 steps per rotation in an open loop control.
A zero-backlash MaalonDrive® gear with a reduction ratio of 160:1 is directly connected to the motor and drives a ball screw with a pitch of 1 mm.
Two inductive limit sensors monitor the end positions.
Benefits
1) Compact build up
2) Sterilizable
3) Robust control without feedback system
4) Integrated limit switches
5) Ball screw
Technical parameters
The values shown are based on calculations and measurement procedures carried out by Micromotion GmbH, which are carried out according to the current state of the art. Our definitions can be found at www.micromotion-drives.com. For further information please contact sales@micromotion.de.
Nr.
Parameter
Symbol
Value
Properties
P-002
Sterilizable
ja
P-003
Ratio
i
160 : 1
P-004
Self-locking
ja
P-005
Travel range
s
10 mm
P-008
Repeatability unidirectional
0.75 μm
P-009
Repeatability bidirectional
3 μm
P-010
Accuracy
23 μm
P-012
Resolution
0.3125 μm
P-014
Lost motion
7.5 μm
P-015
Backlash
0 μm
P-016
Rated force
F
15.1516 N
P-017
Peak force
F
20 N
P-018
Momentary peak force
F
20 N
P-023
Rated speed
v
1.04167 mm/s
P-024
Maximum speed
v
2.1875 mm/s
P-034
Lifetime for rated operation
500 h
P-035
Radial backlash output shaft
0 μm
P-036
Axial backlash output shaft
0 μm
P-044
Max. axial load on output shaft (non-operating, impulsive load)
F
20 N
P-055
Moment of inertia
I
282 * 10-4 gcm2
P-056
Weight
m
22 g
P-057
Min. permissible ambient temperature (non-operating)
T
-30 °C
P-058
Min. permissible ambient temperature (operating)
T
-10 °C
P-059
Max. permissible ambient temperature (non-operating)
T
130 °C
P-060
Max. permissible ambient temperature (operating)
T
70 °C
P-099
Additional technical data
Output shaft is sealed by teflon washers and epoxy and
cable:PVC ribbon with color code
Motor data: Stepper AM 0820-2R-A0.225
P-100
Motortype
Stepper
P-102
Maximum speed of motor
n
21000 rpm
P-103
Resonance frequency of motor
f
170 Hz
P-105
Holding torque of motor (unpowered)
T
0.17 mNm
P-109
Rated current of motor
I
225 mA
P-111
Rated voltage of motor
U
2 V
P-112
Phase resistance of motor
R
7.3 ohm
P-113
Inductance of motor
L
1.4 mH
P-114
Amplitude BEMF of motor
U
0.267 mV/rpm
P-115
Full step angle of motor
18 °
P-116
Angular accuracy of step of motor
±1.8 °
P-117
Electrical time constant of motor
t
0.21 ms
P-118
Max. coil temperature of motor
T
130 °C
P-119
Thermal resistance of motor between coil and housing
Rth1
4.1 K/W
P-120
Thermal resistance of motor between housing and air
Rth2
65.3 K/W
P-121
Thermal time constant of the coil of the motor
τw1
3500 ms
P-122
Thermal time constant of the housing of the motor
τw2
160000 ms
P-123
Insulation voltage of motor
U
200 V
Data limit switch
P-302
Configuration Limit switches
n.c.
Spindle data: Ball screw MLP-8-SPM0052 – 10 mm travel range
P-402
Pitch
R
1 mm
Material information
P-900
RoHS compliant
ja
P-901
Lubrication of output bearing gearbox
BarriertaL55/2
P-903
Lubrication of gear component set
BarriertaL55/2
P-904
Lubrication of bearing motor
BarriertaL55/2
P-905
Lubrication of spindel-nut-system
BarriertaL55/2
P-908
Material of gear component set
NiFe
P-909
Material of output bearing gearbox
1.4108 DIN EN
P-911
Material of bearing motor
Stainless steel
P-912
Material of gearbox output side
1.4305 DIN EN
P-914
Material of motor housing
Anodized aluminum
P-917
Material of spindle
100Cr6
Graphs
P-019
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