Center pivot irrigation drive motor compatible with UMC, available in 0.6, 0.75, and 1.5 HP with ratios from 20:1 to 60:1.

Center Drive Gearmotor (UMC Replacement)

Motor Options: 0.6, 0.75, 1.5 HP
Gear Ratio Options: 20:1, 25:1, 30:1, 40:1, 50:1, 60:1
Frequency: 60/50/50 Hz
Volts AC: 460/415/380
Dimensionally Interchangeable with Other Brands: UMC
Delivery Time: 7-15 days

Product Overview

The LiuDrive Center Drive Gearmotor is an engineered 1:1 drop-in replacement for UMC center drives. Built for the demanding environments of modern agriculture, it is fully compatible with ZIMMATIC, VALLEY, LOCKWOOD, OLSON, PIERCE, and REINKE center pivot irrigation systems. With a 95% efficient helical gear reduction and an all-aluminum housing, it delivers long life, high torque, and reliable operation.

Core Engineering Advantages

Superior Thermal & Corrosion Resistance: All-aluminum gear case and motor housing with a finned stator ensure cooler running, superior heat dissipation, and extended lifespan in harsh field conditions.
Advanced Sealing System: Features cartridge output seals that eliminate shaft grooving and reduce oil leaks. An integrated crop guard and output seal savers protect against crop wrapping and debris.
Maximum Moisture Protection: All critical electrical connections are encapsulated. The internally vented single-bolt junction box and Teflon-tubing-covered magnet wires (with P.D. caps) prevent water penetration.
Optimized Spray Defense: Specially designed motor drain holes provide advanced spray protection, matching industry-leading OEM standards.

Gearbox & Motor Specifications

Motor Power Options: 0.6 HP, 0.75 HP, 1.5 HP (3-phase motors available)
Gear Ratio Options: 20:1, 25:1, 30:1, 40:1, 50:1, 60:1
Voltage & Frequency: 460V / 60Hz or 380V-415V / 50Hz
Motor Type & Protection: TENV (Totally Enclosed Non-Ventilated) motor. Class H wire and Class F insulation used throughout. IP45 rated.
Thermal Protection: Built-in auto-reset thermal overload protection located in the junction box.
Gearing: 95% efficient helical gear design. High-strength steel shafts with fully heat-treated gears for maximum dependability.
Maintenance: Top oil fill plug positioned for easy and accurate oil level setting.

Universal Compatibility & Mounting

Interchangeability: 1:1 dimensionally interchangeable with UMC Center Drives.
Universal Mounting Pattern: Fits (3 3/8″ x 6 3/8″), (4 3/4” x 7 1/4”), and (5″ x 6″) bolt patterns for effortless installation across different pivot brands.
Quality Standard: CE Certified motor, manufactured to strict international industrial standards.