Synchronous motor BT series

three-phasepermanent magnethollow-shaft

Overview
The BT series high-torque motors from Brusatori are permanent-magnet multi-pole synchronous motors with integrated liquid cooling. They provide high torque in a compact envelope, reducing the need for external gearing and simplifying machine drive trains. The design supports both complete motor assemblies and separate stator/rotor configurations for direct OEM integration. Combined with appropriate drive controllers (e.g. COMBIVERT F6) they form efficient, low-maintenance drive solutions.

Highlights

• Cost-efficient hollow-shaft mounting for direct axis coupling
• More compact footprint compared to geared motor solutions
• Lower maintenance due to fewer wear parts
• Backlash-free connection to the machine axis
• Reduced acoustic emissions
• Integrated liquid cooling minimises contamination risk

Technical Data
Size | Length | Speed [rpm] | Torque Ton [Nm]
BT 370 | 60 | 100, 250, 450 | 470
BT 370 | 90 | 100, 250, 450 | 705
BT 370 | 120 | 100, 250, 450 | 1,010
BT 370 | 180 | 100, 250, 450 | 1,410
BT 530 | 70 | 100, 200 | 795
BT 530 | 140 | 100, 200 | 1,542
BT 530 | 210 | 100, 200 | 2,266

Properties
Windings: Three-phase Y-connection without accessible neutral wire
Windings insulation: Class H
Dimensioning: Class F
Service type: S1 - Continuous duty
Number of poles: 22 (BT 370), 38 (BT 530)
Degree of protection: IP00 for stator and rotor configuration (open frame)
Ambient temperature (operation): -20 °C to +40 °C
Maximum installation altitude: 1,000 m above sea level
Humidity: ≤ 90 % (no condensation)
Transport / storage temperature: -20 °C to +70 °C
Encoder system: Without encoder; HIPERFACE® SRS50 (option)
Resolver: HIPERFACE® SRM50 (option)
Magnetic material: Neodymium-Iron-Boron
Colour: RAL 7046 Grey
Cooling: Liquid cooling (integrated)
Thermal protection: Thermistor PTC
Power connection: Three-phase terminal block
Signal connection: Terminal block

Options

• Position sensors: resolver, sine encoder
• Absolute encoders: EnDat®, HIPERFACE®
• Custom versions per customer specifications

Characteristics / technical specifications

• Series: BT Series (high-torque permanent-magnet synchronous motors)
• Manufacturer / brand: Brusatori
• Motor type: Permanent-magnet multi-pole synchronous motor with integrated liquid cooling
• Available sizes/models: BT 370 and BT 530 with multiple lengths (BT 370 lengths: 60 / 90 / 120 / 180 mm; BT 530 lengths: 70 / 140 / 210 mm)
• Speed variants: BT 370 speeds: 100 / 250 / 450 rpm; BT 530 speeds: 100 / 200 rpm
• Torque range: BT 370: 470 – 1,410 Nm depending on length; BT 530: up to 2,266 Nm
• Number of poles: 22 (BT 370), 38 (BT 530)
• Cooling: Integrated liquid cooling
• Insulation classes: Windings insulation Class H; Dimensioning Class F
• Thermal protection: Thermistor PTC
• Encoder / position feedback options: HIPERFACE® SRS50, HIPERFACE® SRM50, EnDat®, resolver, sine encoder
• Degree of protection (stator/rotor): IP00 (open frame)
• Operating temperature range: -20 °C to +40 °C; Storage/transport: -20 °C to +70 °C
• Magnetic material: Neodymium-Iron-Boron
• Power / signal connection: Three-phase terminal block / terminal block