MiR 250

MiR 250

The MiR250 is a more flexible AMR that can work around the clock and is brilliantly simple to setup, for improved productivity. Its smaller footprint and increased adaptability help optimize internal logistics without changing layout.

Category:

Description

The MiR250 has a footprint of 580 x 800 mm and a height of only 30 centimeters while still being able to move as much as 250 kg with a speed of 2 meters/second. This makes the AMR more agile than any other AMRs on the market and highly adaptable for challenging environments. Thanks to the small footprint, it can drive in spaces as narrow as 80 centimeters. So, doors and elevators that can be an obstacle for other mobile robots, are not a problem for the MiR250.

The MiR250 is constructed for long lifetime, easy serviceability and work 24/7 with the option for fast battery swap. Further, it has been designed according to current applicable safety standards – we therefore believe it’s the safest AMR on the market.

If you have the need the MiR250 also comes in an ESD version.

Works around the clock with fast battery swap

Robust design ensures a long lifetime

Easy serviceability

Navigated smoothly and efficiently in dynamic environments

ESD version available

Technical Specification

Dimensions

Length 800 mm / 31.5 in
Width 580 mm / 22.8 in
Height 300 mm / 11.8 in
Clearance from ground 25 – 28 mm / 1.0 – 1.1 in
Weight (without load) 83 kg / 183 lbs
Load surface 800 x 580 mm / 31.5 x 22.8 in
Wheel diameter (drive wheel) 200 mm / 7.9 in
Wheel diameter (swivel wheel) 125 mm / 4.9 in
Dimensions for mounting top modules Robot footprint. Contact MiR if a bigger top module is required.
Top plate Anodized aluminum, 5 mm

 

Color

RAL color RAL 7011 / Iron Grey
RAL color – ESD version RAL 9005 / Signal Black

 

Payload

Robot payload 250 kg / 551 lbs
Acceleration limits with payload 0.3 m/s^2
Footprint of payload Robot footprint. Contact MiR if a bigger payload footprint is required.
Payload placement COM position according to User guide

 

Speed and Performance

Active operation time with full load 13 hours
Active operation time with no load 17.4 hours
Standby time 22 hours. Robot is on and idle.
Traversable gap and sill tolerance 20 mm / 0.8 in
Minimum width, straight aisle with MiR Shelf Carrier 250, rated speed: 2.0 m/s 1400 mm (with footprint of 1300×1300 mm)
Space needed for U-turn around obstacle/wall 1700 mm
Minimum doorway width 800 mm
Minimum size of detectable object (scanner) 20 mm at 1.0 m, 70 mm at 2.5 m
Product design life 5 years or 20.000 hours, whichever comes first
Maximum altitude 2000 m

 

Battery and Charging

Charging options MiR Charge 48V, Cable Charger, Cable Charger Lite 48V 3A
Charging time, MiR Charge 48V, 10% to 90% 52 minutes
Charging ratio 1:17 (30 min charge = 8.3 hours run time with full load)
Battery capacity 1.63 kWh (34.2 Ah at 47.7V)
Battery type Lithium ion (Li-NMC)
Battery voltage 47.7 V nominal, min 41 V, max 54 V
Charging an empty battery Only possible with the cable charger. To dock to MiRCharge 48V, the robot requires at least 3 pct battery (or equal to 10 min operating time).
Charging current, MiR Charge 48V Up to 35 A depending on battery temperature and constant voltage ramping down towards end of charge cycle.
Full charging cycles, minimum 1000 cycles

 

Environment

Ambient temperature, operation +5°C to 40°C
Ambient temperature, storage -10°C to 60°C (1 month), -20C to +45C (3 months)
Humidity 10-95% non-condensing
Compliance Design in accordance with present standards. Passed in accordance with CE, EN1525 & ANSI B56.5, EN12895, EN61000-6-2, EN61000-6-4 + A1, Clean Room Certified – optional, ESD Certified – optional

 

Safety

Collision avoidance Triggered by a human or other obstacle in the path of travel.
Emergency stop Triggered by pressing the Emergency stop button.

 

Communication

I/O connections 4 digital inputs, 4 digital outputs (GPIO), 1 Ethernet port, 1 Auxiliary emergency stop
WiFi connection Router: 2.4 GHz and 5 GHz. Internal computer: WiFi adapter: 2.4 GHz and 5 GHz, 2 internal antennas
WiFi protocol Router: 2.4 GHz 802.11 g/n, 5 GHz 802.11 a/n/ac. Internal computer: 802.11 a/b/g/n/ac
Power for top modules 48 V (41-54 V, nom 47.7 V), 10 A combined. 24 V/2 A.
Safety I/O connections 6 digital inputs, 6 digital outputs

 

Sensors

SICK NanoScan3 safety system     (2 pcs.) SICK safety laser scanners (front and back) 360° visual protection around robot
3D camera (2 pcs.) 2 pcs: Intel RealSense D435. FoV: Detects objects 1800 mm high at a distance of 1200 mm in front of the robot. 114° total horizontal view. Ground view, minimum distance from robot: 250 mm
Proximity sensors 8 pcs.

 

Lights and Audio

Audio Speaker
Signal lights Indicator lights on four sides, eight signal lights (two in each corner).