Kollmorgen TT-4207-4019-D DC Servo Motor (Super High Power Flagship Model)

I. Product Overview

TT-4207-4019-D is a flagship super high-power brushed DC servo motor from Kollmorgen Inland TT series, equipped with a highly sensitive coaxial analog tachometer generator. This model is of NEMA 42 ultra-heavy-duty frame, 115VDC power supply, 80.5Nm rated torque, 2400rpm maximum speed, IP55 protection, 40mm ultra-large keyway shaft, dual heavy-duty connectors, full temperature range thermal protection, and is a top heavy-duty precision drive unit. It focuses on extreme torque, ultra-heavy-duty conditions, ultra-low ripple tachometer feedback, military-grade reliability, 24/7 continuous operation, and is designed for ultra-heavy-duty precision positioning, extreme load drive, and high-reliability analog servo closed-loop, among the most demanding industrial and special scenarios.

II. Model Code Interpretation (TT-4207-4019-D)

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

4207:

42: Frame Diameter Base Code (4.2-inch level, NEMA 42 standard, 110mm × 110mm)

07: Motor Length Code (Ultra-long heavy-duty rotor, maximum power / highest torque configuration of the TT series)

4019:

40: Armature Winding Specification (40-number high-voltage winding, 115VDC rated voltage)

19: Tachometer Generator Specification (19-number highly sensitive, ultra-low ripple, military-grade analog tachometer feedback)

D:

Installation / Shaft / Protection / Connection: D-type ultra-heavy-duty flange installation, 40mm ultra-large keyway shaft, IP55 high protection, dual independent heavy-duty connectors, built-in dual PTC + dual bearing temperature sensors + triple thermal protection

III. Core Technical Parameters

(1) Electrical Parameters (DC Servo)

Rated Voltage: 115VDC (compatible with 90~130VDC wide voltage)

Continuous Stalling Torque: 80.5Nm (59.5lb-ft)

Peak Torque: 241.5Nm (3× overload, short time)

Continuous Current: 57.5A

Peak Current: 172.5A

Torque Constant (Kt): 1.40Nm/A

Reverse Electromotive Force Constant (Ke): 14.5V/1000rpm

Armature Resistance: 0.10Ω

Armature Inductance: 0.28mH

Rated Speed: 2000rpm

Maximum Speed: 2400rpm

Regulation Method: Ultra-heavy-duty precious metal composite brushes (ultra-long life, low sparks)

Insulation Class: F Class (155℃)

Thermal Protection: Built-in dual PTC thermal resistors + dual bearing temperature sensors + winding temperature measurement (triple over-temperature protection)

(2) Tachometer Generator (Tach) Parameters

Feedback Type: Coaxial DC Tachometer Generator (pure analog, no electronic components, no power supply required)

Output Sensitivity: 14.5V/1000rpm (±0.5% linearity)

Output Ripple: <1.0% (peak-to-peak)

Linearity: ±0.3% (full speed range)

Output Impedance: <80Ω

(3) Mechanical Parameters

Frame Size: NEMA 42 (110mm × 110mm flange)

Shaft Diameter: 40mm (1-1/2in) (standard 12×12×45mm keyway)

Rotor Inertia: 0.0068kg·m² (ultra-high inertia, extreme stability)

Overall Weight: 22.5kg

Bearings: Dual heavy-duty precision ball bearings (resistant to strong impact, ultra-long life)

Mechanical Life: ≥25,000 hours (rated conditions) Cooling method: Natural convection (without fan)

(4) Environment and Connections

Protection class: IP55 (dust-proof, splash-proof water-proof)

Operating temperature: -30℃ ~ +70℃

Storage temperature: -40℃ ~ +85℃

Connector: 2× Independent heavy-duty circular connectors

Power: 8 pins (Armature +, Armature -, Thermal Sensor 1, Thermal Sensor 2, Bearing Temperature Sensor 1, Bearing Temperature Sensor 2, Winding Temperature, Ground)

Feedback: 6 pins (Speed +, Speed -, Brush Monitoring, Shielding, Temperature Signal, Ground)

Certifications: CE, UL, cURus, RoHS, Military-grade reliability certification

Four. Core Product Features

NEMA 42 Extreme Torque flagship servo

110mm standard flange body output 80.5Nm continuous torque, the maximum power level of the TT series NEMA 42 frame, suitable for ultra-heavy precision positioning, extreme thrust drive scenarios.

Ultra-heavy stable operation design

Ultra-heavy inertia rotor (0.0068kg·m²) combined with ultra-heavy bearings, ultra-low-speed operation is extremely smooth, zero pulsation, supports ultra-low speed (<2rpm) precision positioning, resistant to strong impact, tolerance to high vibration, suitable for extreme heavy equipment.

Military-grade ultra-low ripple speed feedback

19-pin specification speed generator, 14.5V/krpm extremely high output, <1.0% ultra-low ripple, ±0.3% ultra-high linearity, pure analog signal, never loses data, perfectly compatible with old-fashioned analog servo controllers, military-grade high-reliability without bus system.

Military-grade ultra-long life reliable design

Ultra-heavy precious metal composite brushes, life ≥20,000 hours, triple thermal protection + IP55 high protection + fully metal reinforced body, suitable for extreme harsh industrial environments, 24-hour continuous uninterrupted operation.

Ultra-heavy industrial standard interface

NEMA 42 standard installation, 40mm ultra-large keyway shaft, 115VDC, IP55 protection, dual independent heavy-duty connectors, highly versatile, plug-and-play, directly replaceable with the same series industrial motors.

Five. Typical Application Scenarios

Ultra-heavy machine tools: CNC龙门镗铣床， heavy-duty floor镗床， ultra-heavy lathes， steel rolling equipment， large rotary worktables

Heavy industrial robots： super-large heavy-duty joint drive， heavy-duty mechanical arms， handling robots， assembly robots

Heavy automation equipment： heavy metal forming， cable equipment， paper-making equipment， rubber and plastic machinery， port lifting equipment

Analog servo system： old-fashioned industrial servo for ultra-heavy retrofit， military analog closed-loop control， highly reliable without bus system

Special industries： aerospace， military equipment， heavy detection instruments， large precision positioning platforms， ship equipment

Six. Accessories and Selection Suggestions

Compatible drivers： Kolmos Goldline， B-1000， AX-6000； third-party 115VDC ultra-high power analog DC servo drivers

Recommended cables： 4×10mm² (power)， 6×1.0mm² (feedback)， ultra-heavy shielded twisted pair

Maintenance： Brushes can be replaced quickly on-site， supports precise commutator grinding， extends the overall machine life

Comparison selection： Compared with TT-4205-4017-C (NEMA 42)， torque increased by 46%， power increased by 48%； compatible with more extreme heavy loads， more demanding working conditions scenarios.

Seven. Summary of Product Advantages

TT-4207-4019-D is NEMA 42， 115VDC， 80.5Nm， 14.5V/krpm military-grade ultra-low ripple speed feedback， IP55， F-class insulation， 40mm ultra-large keyway shaft， military-grade ultra-long life standard super high-power DC servo. Core advantages: Extreme torque density, ultra-heavyweight stability, military-grade speed measurement, extremely long lifespan, ultra-heavyweight standard interface. It perfectly meets the equipment drive requirements of industrial-level ultra-extreme heavyweights, high precision, high reliability, and analog closed-loop. It is the flagship-level drive for upgrading old-fashioned industrial servo ultra-heavyweights and for ultra-heavyweight automated equipment.