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 | Model | WN05RA400M | | Key Features  |  | ·         Direct-drive concept provides faster rotating speeds and enhanced position sensitivity  ·         Ultra-low profile design – only 49 mm in height  ·         High efficiency DC torque motor optimizes available torque  ·         Proprietary glass scale encoder ensures 0.002° repeatability  ·         400 mm diameter through-hole for convenient cable routing | 
 
 |  | StructureDescription
 | Angle Range | 360° |  | Stage Diameter | Φ400mm |  | Transmission Ratio | 720∶1 |  | Actuator Type | Worm Gear |  | Travel Guide | Bearing |  | Stepper Motor(1.8°) | SST57D3301 |  | Base Material | Aluminum Alloy |  | Surface Treatment | Black-anodized |  | Load Capacity | 75kg |  | Weight | 21kg |  | Accuracy Description | Resolution | 0.0025°=9″ (non MicroStep) 0.000125°=0.45″(20 MicroStep Driver in use) |  | Speed | 5°/sec |  | Repeatability | 0.002°=7.2″ |  | Positional Accuracy | 0.005°=18″ |  | Surface Roundness | 15µ |  | Backlash | 0.005°=18″ |  | Transversal Deviation | 30µ |  | Lost Motion | 0.005°=18″ |  | Parallelism | 120µ | 
    
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