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BAUMÜLLER BM4423-ST1-022 00-03 Synchronous Servo Motor

Product Introduction:
The BAUMÜLLER BM4423-ST1-022 00-03 is a customized 4-pole (2 pole pair) servo motor from the BM4423 series with dual radial shaft seals, a keyed shaft, natural convection cooling, and customer-specific modification code 00-03. This variant targets high-speed, medium-torque applications with enhanced environmental sealing.

Detailed content

Cooling Method: Natural Convection (S)

Shaft Configuration: Keyed Shaft with Dual Radial Shaft Seals (T)

Electrical ConnectionRotatable Connector (1) — M23, 360° rotation.

Pole Configuration022 = 2 Pole Pairs (4 Poles) — High-speed, medium-torque optimized.

Frame Size230 mm Flange Diameter

Motor Length Code23 (Medium Length) — Approximately 280 mm overall length.

Rated Torque: Approximately 10–16 Nm

Peak TorqueUp to 3× Rated Torque

Rated PowerApproximately 3.5–5.5 kW

Maximum Rated SpeedUp to 4500 rpm

Protection Class: IP65 (dual shaft seals)

Insulation Class: Class F (155°C)

Ambient Temperature Range-10°C to +40°C (continuous)

Housing Material: Aluminum Alloy Die-Cast (ADC12)

Stator Lamination0.35 mm Silicon Steel (Grain-Oriented)

Rotor Magnets: Sintered NdFeB N42SH Grade

Bearings: Deep Groove Ball Bearings (C3 Clearance, Both Ends)

Shaft Material: Induction-Hardened C45E (1.0503)

Shaft Diameter: 42 mm or 55 mm

KeywayDIN 6885-1 Form A

Weight: Approximately 32–40 kg

Moment of InertiaApproximately 0.018–0.038 kg·m²

Custom Code 00-03: BAUMÜLLER internal customer-specific modification identifier — Denotes particular mechanical or electrical customizations applied to the BM4423-ST1-022 base.

Encoder OptionsPer customer specification defined in 00-03 code — typically incremental HTL or absolute EnDat 2.2

Standards Compliance: EN 60034-1, EN 60034-5, EN 61800-5-1, CE

Applicable Industries: High-Speed Spindles, CNC Machining, Packaging, Textile Machinery, Printing — with custom modifications per 00-03

Key Advantages:

  • 4-pole design (022) provides balanced high-speed performance with adequate torque
  • Dual shaft seals (T) — superior IP65 protection from both shaft ends
  • Custom code 00-03 provides application-specific optimization
  • Natural convection — silent operation, zero fan maintenance
  • Rotatable connector — flexible installation in confined spaces

Installation Requirements:

  • B5 flange mounting — 4× M10, 210 mm PCD.
  • Verify dimensions against 00-03 modification drawing before installation.
  • Minimum 150 mm clearance around housing for cooling.
  • Coupling alignment: ≤0.05 mm TIR.

Operating Notes:

  • Refer to 00-03 documentation for any modified limits.
  • Standard BM4423-ST1-022 operating parameters apply unless 00-03 specifies deviations.
  • Shaft seals require inspection every 6000 operating hours.

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