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.
MiR 250
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). |
