Kolmorgen TT-4287-1010-D DC Servo Motor (Special High Voltage Heavy-duty Type)

I. Product Overview

TT-4287-1010-D is a special high-voltage, ultra-high power brushed DC servo motor from Kolmorgen Inland TT series. It is equipped with a high-stability, low-sensitivity coaxial analog tachometer generator. This model is an NEMA 42 ultra-heavy-duty frame, 230VDC high-voltage power supply, 92.8Nm rated torque, 1800rpm maximum speed, IP55 protection, 40mm ultra-large keyway shaft, dual heavy-duty connectors, a full temperature range multiple thermal protection special heavy-duty drive unit. It is mainly designed for 230V high-voltage, extreme torque, ultra-stable low speed, industrial-grade high reliability, and is specifically for 230V DC bus systems, ultra-heavy precision positioning, extreme load driving, high-voltage analog servo closed-loop, and other special industrial scenarios.

II. Model Code Interpretation (TT-4287-1010-D)

TT: Kolmorgen DC servo motor + built-in coaxial tachometer generator Standard series

4287:

42: Frame diameter base code (4.2-inch level, NEMA 42 standard, 110mm × 110mm)

87: Motor length code (super-long special rotor, 230V high-voltage high-power / extreme torque configuration)

1010:

10: Armature winding specification (10-number high-voltage special winding, 230VDC rated voltage)

10: Tachometer generator specification (10-number high stability, low sensitivity, low ripple 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 + winding temperature triple 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: 92.8Nm (68.6lb-ft)

Peak Torque: 278.4Nm (3× overload, short time)

Continuous Current: 40.2A

Peak Current: 120.6A

Torque Constant (Kt): 2.31Nm/A

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

Armature Resistance: 0.28Ω

Armature Inductance: 0.52mH

Rated Speed: 1500rpm

Maximum Speed: 1800rpm

Regulation Method: Ultra-heavy-duty precious metal composite brush (ultra-long life, low sparks, high-voltage resistance)

Insulation Class: H Class (180℃)

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

(2) Tachometer Parameter

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 42 (110mm × 110mm flange)

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

Rotor Inertia: 0.0075kg·m² (ultra-high inertia, extreme stability)

Overall Weight: 24.2kg

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, High Voltage Insulation Certification

Four. Core Product Characteristics

230V High Voltage Limiting Torque Flagship

230VDC High Voltage Power Supply, 110mm standard flange body output 92.8Nm continuous torque, the maximum power level of TT series 230V high voltage NEMA 42 frame, suitable for 230V DC busbar, ultra-heavy-duty precision positioning, extreme thrust drive scenarios.

Super High Voltage Insulation and Safety Design

H-class (180℃) special insulation, 230V high voltage reinforced winding, high-voltage isolation terminals, triple grounding protection, meeting the safety specifications of high-voltage DC systems, suitable for industrial high-voltage servo, special equipment.

Ultra Heavy-duty Stable Operation

Ultra heavy-duty rotor (0.0075kg·m²) combined with ultra heavy-duty bearings, low-speed operation extremely smooth, zero pulsation, supports ultra-low speed (<2rpm) precision positioning, resistant to strong impact, withstands high vibration, suitable for extreme heavy equipment.

Highly Stable Low Ripple Speed Feedback

10-pin specification speed meter, 7.2V/krpm stable output, <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.

Military-grade Ultra Long Life Reliable Design

Ultra heavy-duty 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-duty Industrial Standard Interface

NEMA 42 standard installation, 40mm oversized keyway shaft, 230VDC, IP55 protection, dual independent heavy-duty connectors, highly versatile, plug-and-play, directly replaceable with the same series high-voltage industrial motors.

Five. Typical Application Scenarios

230V High Voltage Industrial Machines: CNC龙门镗铣床， Heavy-duty Floor镗床， Ultra Heavy-duty Lathe， Rolling Steel Equipment， Large Rotary Worktable

High Voltage Industrial Robots： Ultra Large Heavy-duty Joint Drive， Heavy-duty Mechanical Arm， Handling Robot， Assembly Robot

High Voltage Automation Equipment： Heavy-duty Metal Forming， Cable Equipment， Papermaking Equipment， Rubber and Plastic Machinery， Port Crane Equipment

High Voltage Analog Servo System： Retrograde industrial high-voltage servo ultra-heavy modification， military-grade high-voltage analog closed-loop control， highly reliable without bus system

Special Industry： Aerospace， Military Equipment， Heavy Detection Instruments， Large Precision Positioning Platform， Ship High-Voltage DC System

Six. Accessories and Selection Suggestions

Compatible Driver： Kolmos Goldline 230V， B-1200， AX-8000； Third-party 230VDC Ultra High Power Analog DC Servo Drives

Recommended Cables： 4×10mm² (Power， High Voltage Shielded)， 6×1.0mm² (Feedback)， Ultra Heavy-duty High-Voltage Shielded Twisted Pair

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

Comparison Selection： Compared with TT-4207-4019-D (115VDC)， voltage increased by 100%， torque increased by 15%， power increased by 115%； Compatible with 230V high-voltage systems and extreme heavy-load scenarios.

VII. Product Advantages Summary

TT-4287-1010-D is a NEMA 42, 230VDC high-voltage, 92.8Nm extreme torque, 7.2V/krpm highly stable speed measurement, IP55, H-class insulation, 40mm ultra-large keyway shaft, military-grade ultra-long lifespan standard ultra-high-power high-voltage DC servo. Core advantages: 230V high-voltage, extreme torque density, extremely heavy-load stability, highly stable speed measurement, ultra-long lifespan, extremely heavy standard interface. It perfectly meets the industrial-level 230V high-voltage, extreme-limit heavy-load, high-precision, high-reliability, analog closed-loop equipment drive requirements, and is the preferred flagship driver for upgrading old industrial high-voltage servo ultra-heavy equipment and ultra-heavy high-voltage automated equipment.