Kollmorgen TT-4500-1010-B DC Servo Motor (Internal Rotor High Voltage Heavy Load Type)

I. Product Overview

TT-4500-1010-B is a Kollmorgen Inland TT series innovative internal rotor structure, 230V high voltage, high power brushed DC servo motor, with a built-in highly stable and low sensitivity coaxial analog tachometer generator. This model adopts a NEMA 45 (130mm) heavy-duty frame, 230VDC high voltage power supply, 74.6Nm rated torque, 2400rpm maximum speed, IP44 protection, 35mm keyway shaft, single heavy-load connector, dual PTC thermal protection. It features an exclusive heavy-duty drive unit with internal rotor efficient heat dissipation, 230V high voltage, high torque density, industrial-grade stability, analog tachometer closed loop, specifically designed for high-voltage DC bus systems, heavy-duty precision positioning, efficient continuous operation, high-reliability analog servo, etc., for industrial scenarios such as high-voltage DC bus systems, heavy-duty precision positioning, efficient continuous operation, high reliability analog servo, etc.

II. Model Code Interpretation (TT-4500-1010-B)

TT: Kollmorgen DC Servo Motor + Built-in Coaxial Tachometer Generator Standard Series

4500:

45: Frame Diameter Base Code (4.5-inch level, NEMA 45 standard, 130mm × 130mm)

00: Motor Length / Structure Code (Standard Length, Internal Rotor "inside-out" Innovative Structure)

1010:

10: Armature Winding Specification (10th high-voltage special winding, 230VDC rated voltage)

10: Tachometer Generator Specification (10th highly stable, low sensitivity, low ripple analog tachometer feedback)

B:

Installation / Shaft / Protection / Connection: B-type square flange installation, 35mm standard keyway shaft, IP44 protection, single heavy-load circular connector, built-in dual PTC thermistor thermal protection

III. Core Technical Parameters

(1) Electrical Parameters (DC Servo)

Rated Voltage: 230VDC (compatible with 200~250VDC high voltage wide voltage)

Continuous Stalling Torque: 74.6Nm (55.0lb-ft)

Peak Torque: 223.8Nm (3× Overload, Short Time)

Continuous Current: 32.3A

Peak Current: 96.9A

Torque Constant (Kt): 2.31Nm/A

Reverse Electromotive Force Constant (Ke): 23.8V/1000rpm

Armature Resistance: 0.35Ω

Armature Inductance: 0.65mH

Rated Speed: 2000rpm

Maximum Speed: 2400rpm

Regulation Method: Heavy-duty Gold Composite Brush (Long-life, Low Spark, High Voltage Resistance)

Insulation Class: H Class (180℃)

Thermal Protection: Built-in Dual PTC Thermistors (Over-temperature Cut-off Protection)

(2) Tachometer Generator (Tach) Parameters

Feedback Type: Coaxial DC Tachometer Generator (Pure Analog, No Electronic Components, No Power Supply Required)

Output Sensitivity: 7.2V/1000rpm (±0.6% Linearity)

Output Ripple: <1.1% (Peak-to-Peak)

Linearity: ±0.4% (Full Speed Range)

Output Impedance: <90Ω

(3) Mechanical Parameters

Frame Size: NEMA 45 (130mm × 130mm Square Flange)

Shaft Diameter: 35mm (Standard 10×10×40mm Keyway)

Rotor Inertia: 0.0072kg·m² (High Inertia, Stable Operation)

Overall Weight: 21.8kg

Bearings: Double-row Heavy-duty Precision Ball Bearings

Mechanical Life: ≥20,000 Hours (Rated Conditions)

Cooling Method: Natural Convection (TENV) / Optional Fan Cooling (TEFC) (4) Environment and Connectivity

Protection level: IP44 (splash-proof, dust-proof)

Operating temperature: -20℃ ~ +65℃

Storage temperature: -40℃ ~ +85℃

Connector: 1× Heavy-duty circular connector (Power + Feedback + Temperature signal integrated)

Certifications: CE, UL, cURus, RoHS, High-voltage insulation certification

Four. Core Product Features

Innovative inner rotor efficient heat dissipation design

Adopting "inside-out" inner rotor structure, the windings are directly attached to the casing, achieving rapid heat dissipation. In the same volume, the torque density is increased by 15~20%, supporting higher power continuous operation.

230V high-voltage NEMA 45 heavy-duty platform

230VDC high-voltage power supply, 130mm square flange body output 74.6Nm continuous torque, suitable for 230V DC busbar, heavy-duty precision positioning, and efficient thrust drive scenarios.

Highly stable low ripple speed feedback

10-inch specification speed sensor, stable output of 7.2V/krpm, <1.1% low ripple, ±0.4% high linearity, pure analog signal, never loses data, perfectly compatible with 230V high-voltage analog servo controller, highly reliable without bus system.

Industrial-grade long-life reliable design

Heavy-duty precious metal composite brushes, lifespan ≥ 15,000 hours, dual PTC thermal protection + IP44 protection + all-metal body, suitable for harsh industrial environments, 24-hour continuous uninterrupted operation.

Heavy-duty industrial standard interface

NEMA 45 standard square flange, 35mm standard keyway shaft, 230VDC, IP44 protection, single-channel integrated heavy-duty connector, highly versatile, plug-and-play, directly replaceable with the same series industrial motors.

Five. Typical Application Scenarios

230V high-voltage industrial machine tools: CNC milling machines, grinding machines, heavy-duty lathes, machining centers, large rotary worktables

High-voltage industrial robots: Large heavy-duty joint drives, heavy-duty mechanical arms, handling robots, assembly robots

High-voltage automation equipment: Metal forming, cable equipment, paper-making equipment, rubber and plastic machinery, textile machinery

High-voltage analog servo system: Retrofitted old industrial high-voltage servo, military high-voltage analog closed-loop control, highly reliable without bus system

Special industries: Aerospace, military equipment, heavy detection instruments, large precision positioning platforms, ship high-voltage DC systems

Six. Accessories and Selection Suggestions

Compatible drivers: Kolmos Goldline 230V, B-1200, AX-8000; Third-party 230VDC high-power analog DC servo drivers

Recommended cables: 4×6mm² (power, high-voltage shielded), 6×1.0mm² (feedback), heavy-duty high-voltage shielded twisted pair

Maintenance: Brushes can be replaced quickly on-site, supports precise grinding of commutators, extends the overall machine lifespan

Comparison selection: Compared with TT-4287-1010-D (NEMA 42), the frame is larger (130mm), has stronger heat dissipation, higher speed (2400rpm); compatible with scenarios requiring higher speed and more efficient heat dissipation at 230V high-voltage.

Seven. Summary of Product Advantages

TT-4500-1010-B is NEMA 45, 230VDC high-voltage, 74.6Nm torque, inner rotor efficient heat dissipation, 7.2V/krpm highly stable speed feedback, IP44, H-level insulation, 35mm standard shaft, industrial-grade long-life standard high-voltage DC servo. Core advantages: Innovative inner rotor structure, rapid heat dissipation, high torque density, 230V high-voltage, highly stable speed feedback, long life and reliability. Perfectly meets the industrial-level 230V high-voltage, heavy-duty, high-efficiency, high-precision, highly reliable, and analog closed-loop equipment driving requirements. It is the ideal choice for upgrading old industrial high-voltage servo systems and heavy-duty high-voltage automated equipment.