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Kollmorgen B-404S-C-93-B3-072
Product Brief: B-404S indicates frame 40, S = special stack variant; “-C-” = C-winding (higher torque constant than B-winding, lower max speed — typical continuous stall torque for B-404C ~5.5–6.5 Nm). “93” = keyed shaft + standard seals; “B3” = circular connector + shaft seal; “-072” = special lamination stack length 72 mm (non-standard — standard stacks are typically ~50/65/80 mm for B-40x; 072 is a custom length altering inertia and torque proportionally). Factory-fitted with 2-pole resolver. Compatible with SERVOSTAR S300/S600/S700 and AKD (120/240 V models for C-winding).
Detailed content
Frame Size: B-40x — Flange 110 mm × 110 mm, shaft Ø 19 mm with keyway
Stack Length (Special): 72 mm (custom — alters Tc and J per proportionality to standard stack)
Estimated Continuous Stall Torque (Tc, C-wdg, 72 mm stack): ≈ 6.0 – 7.0 Nm (proportional to standard B-404C ~5.8 Nm @ std stack × ratio)
Peak Torque (Tp): ≈ 18 – 21 Nm
Rated Speed (nN, C-winding): 3000 rpm (C-winding typically limited to 3000 rpm @ 230 VAC)
Rated Power (Continuous): ≈ 1.9 – 2.2 kW
Rated Current (RMS): ≈ 5.0 – 6.0 A
Peak Current (RMS): ≈ 15 – 18 A
Torque Constant (Kt, line-line): ≈ 1.20 – 1.35 Nm/A
Back-EMF Constant (Ke, line-line): ≈ 80–90 V/krpm (RMS)
Winding Resistance (Line-Line, 25 °C): ≈ 0.8 – 1.2 Ω
Winding Inductance (Line-Line): ≈ 6 – 10 mH
Rotor Inertia (without brake, 72 mm stack): ≈ 1.1 – 1.3 × 10⁻⁴ kg·m² (1.1–1.3 kg·cm²) (proportional to stack length)
Brake: None (unless -Bxx option present — not shown)
Feedback Device: 2-pole Resolver (standard Goldline B)
Insulation Class: Class F (155 °C)
Protection Class: IP65 (shaft seal + O-ring on connector)
Cooling: Natural convection
Operating Temperature (Ambient): 0 °C to +40 °C rated; –20 °C to +55 °C with derating
Connector Type: Circular M23 / Intercontec (power + feedback)
Weight (approx., 72 mm stack): ≈ 6.0 – 7.0 kg
Compliance: cURus, CE (per base Goldline B certification)
Applicable Industries: Custom converting winders requiring intermediate torque between std B-404C and B-406C, special-machine textile take-ups, paper converting custom builds
Installation Requirements: Same as B-404 standard — 110 mm flange mount; verify coupling fits extended length due to special stack; connect PE; shielded feedback cable.
Usage Notes: This is a custom/modified standard — exact torque/current values should be taken from the individual motor nameplate, not generic catalog curves; Goldline B discontinued — consult Kollmorgen for AKM equivalent sizing; resolver auto-commutated by AKD/S700.
