Brushless servomotor 9317...BXI G

DCBLDCcorrosion-resistant

Overview
The compact integrated drive system was developed specifically for the high demands placed on joints in current and future robotics applications. The FAULHABER BXI is an integrated unit comprising a motor, integrated planetary gearhead, and high-resolution encoder. It offers maximum performance in minimum space and is tailored for robotic joints and other demanding robotics applications.

Key benefits & features

• Exceptionally short time-to-market and application-specific dimensions
• Most powerful integrated drive system in FAULHABER's portfolio to date for robotics applications
• High torque density with low cogging torque thanks to internal rotor design with 21 pole pairs, slotted stator, and iron-core winding
• Lightweight, corrosion-resistant flat aluminum housing ensuring optimized cooling
• Low mechanical time constant and low moment of inertia for high short-term overload tolerance
• Integrated 15-bit SSI absolute encoder with line driver and compensation algorithm for robust commutation and positioning
• Two robust, shielded M12 electronic interfaces for motor supply and encoder for easy connection to controllers

System Components

• Motor
• Integrated gearhead
• Absolute encoder
• External controller (MC 5010 S)
• Cabling
• Motion Manager support

Application examples
Designed for humanoid robot joints (fingertips to shoulders, toes to hips), cobots requiring reliable positioning and gripping, coordinated movements for multi-legged robots, and other applications where compactness, precision, and dynamic response are critical.

FAULHABER BXI - Product highlights
The Series 9317 BXI G internal rotor motor combines robustness and compactness. High maximum torque of up to 20 Nm enables dynamic movements, fast response times and precise motion control. The BXI offers a voltage range up to 50 V and a short overall length (34 mm) for easy integration where every millimeter and gram count.

Downloads
Technical manual and brochure are available for the product (see product resources).

Technical specifications

• Mechanical specifications: Mass: 987 g; Reduction ratio: 10.5:1; Length: 34 mm
• Electrical specifications: Absolute encoder with Line Driver; Operating voltage (encoder): 5 V ±10 %; Protocol: SSI; Resolution: 15 Bit; Motor voltage range: DC 0 ... 50 V; Direction of rotation: reversible
• Operating temperature range: Ambient: -25 … 85 °C; Max. motor/housing temperature: 100 °C; Max. winding permissible temperature: 125 °C
• Performance: Max. torque: up to 20 Nm; Max. power output: up to 270 W; Max. phase current: up to 13 A; No-load speed: 114 min⁻¹; No-load current phase, rms: 0.577 A; No-load voltage, DC: 24 V
• Encoder: Integrated 15-bit SSI absolute encoder with line driver and compensation algorithm (handles commutation and positioning; insensitive to interference)
• Design advantages: Flat aluminum housing for optimized cooling and corrosion resistance; low-backlash 2-stage planetary gearhead with needle bearings