The Heart of Clear Vision in Automotive Systems
For over three decades, JX Automotive has been at the forefront of designing and manufacturing heavy-duty and passenger vehicle wiper motors. Our systems operate silently, reliably, and efficiently under the most extreme meteorological conditions.
This technical specification document provides an exhaustive breakdown of our core engineering baselines, materials chemistry, structural configurations, and testing methodologies. Built on the foundations of IATF 16949:2016 standards, JX wiper motors are the trusted choice for global OEMs and Tier-1 distributors seeking zero-defect performance.
Core Performance Benchmarks
All mass-produced JX wiper motor models conform to the following unified factory design baselines, verified through dynamometer and climatic chamber validation protocols.
| Parameter Name | Baseline Value | Verification & Test Methodology |
|---|---|---|
| Rated Torque | 12.5 N.m | Measured under continuous load using a dynamic hysteresis dynamometer. Full batch sampling. |
| Stall Torque | ≥ 55 N.m | Locked-rotor test for 5 seconds. No demagnetization or coil burnout permitted. |
| Service Life | 1,500,000 Cycles | Continuous bench testing in simulated environmental chambers (detailed in Section 5). |
| Ingress Protection | IP66 | Tested in accordance with IEC 60529 (dust-tight and protection against high-pressure water jets). |
| Operating Temperature | -40°C to +80°C | Climatic chamber exposure (high and low levels) for 96 hours per cycle. |
| Salt Spray Resistance | 240 Hours | ISO 9227 Neutral Salt Spray (NSS) test for linkage and housing anti-corrosion coating. |
| Rated Voltage | 12V DC | Stable torque delivery over a fluctuation range of 9V to 16V DC. |
| Loaded Speed | Low: 45±5 rpm / High: 65±5 rpm | Measured in both no-load and full-load states using optical tachometers. |
| Operating Noise Level | ≤ 55 dB(A) (Rear: ≤ 52 dB(A)) | Measured in a semi-anechoic chamber at a distance of 1 meter from the motor. |
| Working Current | ≤ 3.5A | Measured at rated load. 100% end-of-line (EOL) tested on the production line. |
Key Parameter Definitions & Industry Benchmarks
Understanding how JX engineering values translate to real-world reliability and safety on the road.
1. What Rated Torque (12.5 N.m) Achieves in Practice
Rated torque represents the sustainable force output a motor can maintain during continuous operation. A rating of 12.5 N.m is the industry benchmark for mid-to-large passenger cars. This torque density is designed to overcome high aerodynamic drag at highway speeds, resist heavy snow loads, and handle the friction of aged rubber blades on dry glass. If a motor falls below this threshold, it risks stalling during heavy downpours or winter conditions.
| Application Category | Typical Required Torque | JX Solution Fit |
|---|---|---|
| Compact Cars / Rear Window Wipers | 8 - 10 N.m | Over-engineered for maximum safety margin |
| Mid-size Sedans / Front Wipers | 12.5 N.m | JX Standard Baseline |
| SUVs / MPVs (Long-blade Systems) | 12.5 - 15 N.m | Fully compatible & highly recommended |
| Commercial Trucks & Heavy Machinery | 15 N.m + | JX 24V Heavy Duty Series available |
2. Stall Torque (≥ 55 N.m) as a Winter Safety System
When windshield wipers are frozen to the glass or blocked by heavy snow accumulation, the motor experiences a "stall" condition. A stall torque of ≥ 55 N.m ensures the mechanism can break through physical obstruction without damage. JX motors feature an integrated thermal overload switch (PTC) that protects the copper coils from overheating during a 5-second stall event, preventing permanent demagnetization.
3. Ingress Protection (IP66) Engineering
Wiper motors are located in the plenum chamber, a zone highly exposed to water runoff, road spray, and cleaning chemicals. IP66 rating guarantees the motor is completely dust-tight and resistant to powerful water jets.
| IP Level | Dust Protection | Water Protection | Target Environment |
|---|---|---|---|
| IP54 | Limited protection | Splashing water from any direction | Standard light indoor use |
| IP65 | Dust-tight | Low-pressure water jets | Standard automotive environments |
| IP66 (JX Standard) | 100% Dust-tight | High-pressure heavy water jets | Global all-weather operation |
| IP67 | Dust-tight | Temporary immersion in water | Off-road & heavy-duty military spec |
1,500,000 Cycles Durability Test Protocol
How JX Automotive ensures long-term operational reliability through strict laboratory validation.
1. Environmental Profile
The motor is placed inside a climatic chamber. The temperature is cycled between -40°C and +80°C to simulate extreme winter and summer conditions.
2. Load Simulation
The motor is mounted to a standard linkage assembly with wiper arms. Wind drag is simulated using mechanical resistance springs.
3. Cycle Rhythm
Continuous sweep cycles are run at alternating high and low speeds. One cycle is defined as a complete forward and backward sweep.
4. Pass Criteria
Zero functional failures allowed at 1.5 million cycles. Torque loss must be ≤10%, noise increase ≤5 dB, and brush wear must remain within limits.
Testing Documentation & Quality Transparency
Every batch of JX wiper motors undergoes testing. We provide full durability and material test reports to automotive engineers during the inquiry and PPAP (Production Part Approval Process) phases.
Materials & Process Specifications
High-grade materials selected for low friction, high wear resistance, and long-term structural integrity.
| Component | Material Specification |
|---|---|
| Motor Housing | ADC12 Die-Cast Aluminum Alloy |
| Reduction Gear | PA66 + GF30 (30% Glass Fiber Reinforced) |
| Linkage & Bracket | High-Strength Structural Steel + E-coat |
| Permanent Magnets | High-Flux Ferrite (Motor Efficiency ≥ 65%) |
| Electrical Connector | 3-Pin / 4-Pin / 5-Pin with Silver-Plated Terminals |
| Surface Coating | 240h Neutral Salt Spray Resistance (ISO 9227) |
Material Science Behind JX Components
ADC12 Aluminum Alloy: The housing is die-cast using ADC12 aluminum, providing high dimensional stability, heat dissipation, and corrosion resistance.
PA66 + GF30 Polymer: The internal worm gear is molded from polyamide 66 reinforced with 30% glass fiber. This combination provides high tensile strength, resistance to deformation under load, and self-lubricating properties when paired with the steel worm shaft.
Electrophoretic Coating (E-coat): The steel linkages undergo multi-stage cleaning and electrodeposition coating to protect against rust in wet and road-salt environments.
Quality Assurance & Manufacturing Capacity
JX Automotive combines large-scale production capacity with strict quality control systems.
Established in 1990
Over 30 years of manufacturing experience, specializing in wiper motors and window regulators.
IATF 16949 Certified
Certified quality management system for the automotive supply chain. CE approved with over 80 patents.
100% EOL Inspection
Every single wiper motor undergoes end-of-line testing for current draw, speed, torque, and noise.
Production Capacity
Our manufacturing facility produces 500,000 wiper motors and 300,000 window regulators annually. Automated assembly lines and robotic winding systems ensure high precision and consistent quality across large production runs.
OEM Customization & Wiring Configurations
JX Automotive provides flexible wiring, connector, and mounting interfaces to match diverse vehicle models.
Electrical Interface Options
We support various wiring configurations to integrate with vehicle control systems. Silver-plated terminals ensure low contact resistance and prevent signal degradation over time.
- 3-Pin Connector: Standard system (Ground, Low Speed, High Speed).
- 4-Pin Connector: Includes automatic park switch signal return.
- 5-Pin Connector: Designed for systems with intermittent delay control and park return.
OEM Customization Services
Our engineering team can customize mounting brackets, output shaft tapers, and wiring harness lengths to meet your packaging space and structural requirements.
JX provides 3D CAD design files, prototype manufacturing, and environmental validation testing to support your product development cycle.
Frequently Asked Questions
Detailed answers to technical and commercial inquiries regarding JX Automotive wiper motors.