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Liermotor
Complete Guide

12V & 24V Systems IP54 / IP67 Rated 1,400 – 2,200W Output Bidirectional Rotation
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What Is a Winch Motor?

A winch motor is a purpose-built DC electric motor designed to generate high starting torque under heavy, intermittent loads. Unlike general-purpose motors, winch motors are engineered to handle extreme peak-current demands — often several times the rated current — during the brief periods of maximum pull, then recover during idle phases.

They operate on a duty cycle basis (typically S2 2-minute duty at 7–9% ED), meaning they deliver very high power for short bursts rather than continuous operation. This matches precisely how real winch applications work — rapid load movement followed by rest intervals.

Winch motors in the DC series are available in 12V and 24V configurations, making them directly compatible with vehicle electrical systems — ideal for off-road recovery, marine lifting, industrial hoisting, and agricultural equipment.

Key Characteristics

01

High Starting Torque

Delivers 4–9 N·m rated torque at stall conditions, essential for heavy load initiation.

02

Intermittent Duty Rating

S2 2-minute duty cycle at 7–9% ED prevents thermal overload during sustained use.

03

Weather Resistance

IP54 to IP67 waterproof ratings allow operation in rain, mud, and marine environments.

04

Bidirectional Operation

All models support both forward and reverse rotation, enabling full load control.

Winch Motor Types

Product Range

Technical Specifications Overview

Seven distinct motor configurations covering 12V and 24V systems from 1,400W to 2,200W, each tuned for specific winch capacity ranges.

12 Volt Series
Spanning (V) Vermogen (W) Rated Current (A) Rated Torque (N·m) Bedrijfscyclus Insulation Waterproof Rotatie
12 2200 ≤285 8 2min-7%ED F IP67 Bidirectional
12 2000 ≤265 6 2min-7%ED F IP67 Bidirectional
12 1750 ≤240 6 2min-7%ED F IP54 Bidirectional
12 1750 ≤240 6 2min-7%ED F IP67 Bidirectional
24 Volt Series
Spanning (V) Vermogen (W) Rated Current (A) Rated Torque (N·m) Bedrijfscyclus Insulation Waterproof Rotatie
24 2100 ≤180 9 2min-9%ED F IP54 Bidirectional
24 2000 ≤125 8 2min-7%ED F IP67 Bidirectional
24 1400 ≤185 4 2min-7%ED F IP54 Bidirectional

Keeping Your Winch Motor in Service

Brush Inspection

Inspect carbon brushes every 100 operating hours or annually. Replace when worn to less than 50% of original length. Asymmetric wear indicates misalignment between brush holder and commutator.

Terminal Connection Check

Check A1 and D2 terminals for corrosion or looseness. Even a 0.1Ω increase in terminal resistance causes significant voltage drop at 200A+ current levels, reducing effective motor power and generating heat.

IP Seal Integrity

After any impact or submersion event, verify that IP seals remain intact. Water ingress into a Class F winding causes insulation breakdown within as few as 10 operating cycles if left unchecked.

Duty Cycle Compliance

Never exceed the rated 2-minute pull without a full thermal recovery pause. In high-ambient-temperature conditions, extend recovery time proportionally. Most field failures are traced to ignored duty cycle limits.

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Installation

Wiring & Installation Notes

Cable Sizing

At 12V and 285A peak current, cable cross-section is critical. Use minimum 35mm² cable for runs under 1m; 50mm² for longer runs. Undersized cable is the most common cause of poor winch performance that gets misattributed to a failing motor.

At 24V the current is approximately halved (125–185A depending on model), allowing smaller cable cross-sections — one of the practical advantages of 24V systems in larger installations.

Solenoid Selection

All motors in the range use an A1/D2 terminal wiring diagram compatible with standard winch solenoid packs. The solenoid must be rated for the full peak current, not just the nameplate current — peaks can reach 2.5–3x rated current during stall conditions.

Use heavy-duty reversing solenoid contactors rated for inductive DC loads. Resistive-rated contactors fail prematurely in motor switching applications due to arc energy at contact opening.

Mounting Orientation

DC winch motors are designed for horizontal shaft operation. Vertical-shaft mounting is possible but may require additional bearing preload consideration, particularly on models with heavier output shaft pinion gears.

Secure all mounting bolts to manufacturer-specified torque. Vibration-induced loosening under load can shift motor alignment relative to the gearbox input, causing rapid gear wear and premature bearing failure.

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Get in Touch

Need Help Specifying
the Right Motor?

Our engineering team works with OEM winch manufacturers, aftermarket suppliers, and fleet operators to match motor specifications to application requirements. Provide your voltage, load, and environment — we will identify the correct model from the range.

Response Time

Within 24 Hours

Custom Specifications

OEM Available

Contact Our Engineering Team

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How to Choose the Right Winch Motor

Follow these five decision points in order. Each filters the field and brings you to the correct specification for your application.

1

Determine Your System Voltage

Match the motor to your vehicle or power supply: 12V for standard passenger vehicles and light off-road platforms; 24V for heavy trucks, commercial vehicles, and higher-capacity industrial winches. Using 24V at equivalent power roughly halves the current draw, reducing cable heat and solenoid wear.

Available Options

12V — 4 models
24V — 3 models

2

Calculate Required Power Output

Estimate your maximum load in kilograms, multiply by the mechanical advantage ratio of your gearbox, and calculate required motor shaft power. The product range spans 1,400W to 2,200W. Always select a motor rated above your peak demand to preserve duty cycle margins and extend service life.

Power Range

1,400W / 1,750W
2,000W / 2,100W
2,200W

3

Specify the Torque Requirement

Rated torque (N·m) determines the force the motor contributes at the gear input. For high-ratio gearboxes in heavy-load winches, higher torque ratings (8–9 N·m) provide a larger margin before the motor stalls. Lower-torque models (4–6 N·m) suit lighter applications with better gear ratios or smaller drum diameters.

Torque Options

4 N·m / 6 N·m
8 N·m / 9 N·m

4

Choose the Ingress Protection Level

Select IP54 for sheltered or workshop environments where water splash is possible but submersion is not. Choose IP67 for marine, river-crossing, or extreme off-road applications where temporary immersion is likely. IP67 models cost more but prevent corrosion-driven failures that are the leading cause of premature motor replacement in wet environments.

IP Ratings Available

IP54 — splash proof
IP67 — submersion safe

5

Verify Mounting Geometry & Gear Interface

Confirm the output shaft tooth count (1, 2, or 20 teeth) matches your gearbox input. Check overall body length and bolt-pattern dimensions against your winch frame. Models range from compact inline designs (~156mm body) to larger flange-mounted configurations (~195mm+). Mismatched geometry is the most common installation error.

Gear Tooth Count

1 tooth / 2 teeth
20 teeth