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New Energy Vehicle (NEV) Component Cleaning and Inspection Solutions

Industry Challenges

New energy vehicle manufacturing places cleanliness and safety requirements that go beyond conventional automotive production. Residual oil, metal chips, and casting residues left after machining can compromise sealing performance and long-term reliability, while any undetected contamination or defect in battery-related components poses a direct safety risk to the battery pack.

As EV production scales up and battery safety standards tighten, manufacturers need automated cleaning and vision inspection solutions that deliver consistent, verifiable quality at high throughput.

Solution Overview

Our new energy industry solutions combine precision cleaning systems with intelligent vision inspection technologies purpose-built for EV and battery component manufacturing.

Cleaning Solutions: Our robotic cleaning systems handle EV motor housings, axle housings, transmissions, and battery-related components using flexible robotic handling, high-pressure spray cleaning, and automated cleaning and inspection processes. For battery electrolyte containers, our systems integrate residual treatment, cleaning, drying, cooling, vision inspection, and leak testing into a single sequence — critical for battery safety and traceability.

Vision Inspection Solutions: Our vision inspection systems verify casting quality, machining accuracy, weld integrity, and sealing surface condition on motor housings, aluminum housings, battery trays, and cooling plates. Using multi-angle imaging and 3D dimensional measurement, our systems detect casting defects, machining scratches, weld seam defects, and internal channel blockages before components move downstream.

Supported Components Our new energy solutions cover a wide range of EV and battery system components:

Core Applications:

EV drivetrain components: motor housings, axle housings (mid/rear), transmissions, front/rear housings, valve seats, range extender engine blocks

Battery system components: battery trays, cooling plates, electrolyte barrels

Structural components: aluminum housings

For traditional powertrain components, please visit our Automotive Manufacturing page.

Case Studies

Case Study 1: New Energy Vehicle Housing Cleaning Machine

We designed and delivered a fully robotic cleaning system for new energy vehicle housings for a leading NEV manufacturer. The system combines turbulent flow cleaning with targeted cleaning, followed by a multi-stage drying process — targeted blow drying, secondary blow drying, and vacuum drying — to ensure thorough removal of machining residues from complex internal cavities.

Key Results:

Cycle time: 70 seconds per workpiece

Overall cleanliness: ≤ 30 mg

Inner cavity cleanliness: ≤ 8 mg

Particle size control: < 600 μm

The system has been in continuous production since 2022, with fully robotic loading and unloading supporting stable, high-volume NEV housing cleaning.

Case Study 2: Automated Vision Inspection System for EV Battery Trays

We deployed an automated vision inspection system for a new energy vehicle production line to verify weld quality, dimensional accuracy, and surface condition on battery trays. The system combines weld seam defect detection, 3D dimensional measurement, and surface contamination inspection to support 100% inspection coverage for this safety-critical component.

Key Results:

Inspection cycle time: ≤ 90 seconds per workpiece

Detection accuracy: ± 0.3 mm

Missing rate: 0.05%

False alarm rate: 2-4%

The system ensures consistent, traceable quality verification for every battery tray before it enters the battery pack assembly stage.

Core Technologies

Cleaning Technologies	Inspection Technologies
Robotic and flexible cleaning systems for motor housings and axle housings	Multi-angle vision inspection for casting and machining defects
High-pressure spray cleaning for internal oil galleries and cavities	3D dimensional measurement for sealing surfaces and structural components
Automated cleaning and inspection integration for electrolyte containers	Weld seam defect detection for battery tray safety verification
Integrated leak testing and residue-free process validation	Internal channel blockage detection for cooling plate performance

FAQ

Q: What cleanliness levels can your cleaning systems achieve for EV motor housings and axle housings?

A: Our systems achieve overall cleanliness levels between ≤ 30 mg and ≤ 70 mg depending on the component, with inner cavity cleanliness as low as ≤ 8 mg for motor housings.

Q: How do you ensure battery electrolyte barrels are safe for reuse?

A: Our automated line combines residual electrolyte treatment, cleaning, drying, cooling, vision inspection, and leak testing in one continuous sequence, delivering residue-free, leak-verified containers ready for closed-loop reuse.

Q: What defects can your vision inspection systems detect on battery trays and cooling plates?

A: Our systems detect weld seam defects, dimensional deviations, surface contamination, and internal channel blockages, supporting 100% inline inspection with detection accuracy as tight as ± 0.1 mm.

Q: Can cleaning and inspection be combined into a single automated line for new energy components?

A: Yes. We design integrated cleaning, drying, and vision inspection lines — as demonstrated in our electrolyte container processing system — reducing manual handling and ensuring consistent, traceable quality.

Q: What materials do your cleaning agents support for EV component manufacturing?

A: Our cleaning agents are compatible with aluminum, cast iron, and steel components, and include solvent-based cleaners suitable for battery and electronic component cleaning without residue.

Q: How long does it take to commission a custom EV cleaning or inspection line?

A: Timelines depend on system complexity and integration requirements. Our project management team supports you from planning through production handover for efficient commissioning.

Data Table

The table below provides a representative overview of our new energy component cleaning applications and performance data.

New Energy Component Cleaning Applications and Performance Data

New Energy Industry Application Solutions - Cleaning, Inspection and Industrial Chemistry

Cleaning Equipment Solutions

Component / Workpiece	Cleaning system / process	Year	Cycle Time (sec/piece)	Cleanliness	Particle Control	Key Technology
EV Motor Housing	Robotic cleaning system	2022	70 sec	Overall ≤ 30 mg, Inner cavity ≤ 8 mg	≤ 600 μm	Robotic loading/unloading, turbulent + targeted cleaning
EV Axle Housing (Mid/Rear)	Flexible robotic cleaning system	2022	70 sec	≤ 70 mg	—	3-robot synchronized, max load 300 kg
EV Transmission	Robotic high-pressure cleaning	2015	120 sec	Oil holes ≤ 5 mg	—	High-pressure system
EV Front/Rear Housing, Valve Seat	Robotic high-pressure cleaning	2015	120 sec	Oil holes ≤ 5 mg, Inner cavity ≤ 10 mg	—	—
Electrolyte Barrel (Battery)	Fully automated cleaning, drying and inspection line	2024	420 sec	Residue-free (electrolyte/oil/contaminants)	—	Full automation: residual treatment → cleaning → drying → cooling → vision inspection → leak test

Vision Inspection Solutions

Component / Workpiece	Inspection Challenge	Inspection Solution	Project Year	Inspection Cycle Time	Inspection Performance	Key Technology
Motor housing	EV motor housing requires reliable inspection of casting defects, machining accuracy and sealing surface quality to ensure motor operation stability and safety.	Automated Motor Housing Vision Inspection System	—	≤ 50 sec	Accuracy: ± 0.15 mm / Missing Rate: 0.1% / False Rate: 3-5%	Multi-angle defect detection, 3D dimensional measurement, sealing surface flatness inspection
Aluminum housing	New energy vehicle aluminum housing parts need to detect casting defects, machining scratches and dimensional deviations to ensure the structural strength and sealing performance of the housing.	Automated Aluminum Housing Vision Inspection System	—	≤ 60 sec	Accuracy: ± 0.2 mm / Missing Rate: 0.1% / False Rate: 4-6%	Multi-angle imaging, casting defect detection, dimensional verification for machining features
Battery tray	EV battery tray requires 100% inspection of weld quality, dimensional accuracy and surface defects to ensure the safety and reliability of the battery pack.	Automated Battery Tray Vision Inspection System	—	≤ 90 sec	Accuracy: ± 0.3 mm / Missing Rate: 0.05% / False Rate: 2-4%	Weld seam defect detection, 3D dimensional measurement, surface contamination inspection
Cooling plate	New energy vehicle cooling plate needs to detect surface defects, dimensional deviations and internal channel blockage to ensure the heat dissipation performance of the battery system.	Automated Cooling Plate Vision Inspection System	—	≤ 75 sec	Accuracy: ± 0.1 mm / Missing Rate: 0.1% / False Rate: 3-5%	Internal channel blockage detection, surface defect inspection, flatness measurement

Recommended Industrial Cleaning Agents

Product Name	Model	State	pH Value (3%)	Main Product Features	Concentration%	Temperature℃	Cleaning Method
Room Temperature Cleaner – Special for Aluminum Parts	CPAL-ALLP11	Liquid	10.78	Non-foaming when cleaned above 27℃, enhances surface wettability to ≥40 dynes/cm, suitable for workpieces with cutting fluid or a small amount of oil stains	2.0%–5.0%	27℃	Spray / Ultrasonic
Room Temperature Cleaner – Universal for Iron & Aluminum	CPAL-MULP23	Liquid	10.54	Room-temperature cleaning, compatible with iron and aluminum, offers in-process corrosion protection for up to 2 weeks	2.0%–5.0%	Ambient Temp	Spray / Ultrasonic
Acidic Cleaner	CPAC-MUHF02	Liquid	1.47	Improves workpiece surface tension after cleaning, enhances surface wettability to ≥40 dynes/cm	2.0–10.0%	Ambient Temp	Soaking / Ultrasonic
Solvent Cleaner	HCS-2601	Liquid	---	Flash-point-free, fast-evaporating, excellent material compatibility, low odor; suitable for battery and electronic component cleaning and heavy oil stain removal	Undiluted Use	Ambient Temp	Soaking / Ultrasonic
Special Cleaner for Crankshafts	CP-CS09	Liquid	9.27	Suitable for cleaning and short-term rust prevention of steel & cast iron parts; outstanding suppression of white residues after air-drying	2.0%–5.0%	20–60	Spray cleaning, etc.
Special Cleaner for Robots	CP-900	Liquid	8.8	Certified by robot manufacturers; compatible with non-ferrous & ferrous metals, extends robot service life	2.0–4.0%	20–45℃	High-pressure, Spray, Dipping, etc.
Rust Preventive Oil	SH-50	Liquid	–	No-clean rust preventive oil with rust protection efficiency over 1 year	–	Ambient Temp	Spray, Dipping, etc.
Heavy-Duty Degreasing Cleaner	SD-10	Liquid	9.69	Ideal for factory floor cleaning and various small component washing	1.0%–10.0%	Ambient / Heated Temp	Ultrasonic & Soak Cleaning
Special Cleaner for Aluminum Parts	CP-60B	Liquid	9.6	Dedicated cleaner for aluminum products, excellent material compatibility and discoloration-free to workpieces	2.0%–4.0%	20–60	Spray cleaning, etc.
Water-Soluble Cleaning & Rust Inhibitor	CP-600T	Liquid	10.38	Rust-proof, applicable to cast iron cleaning with outstanding rust resistance	2.0%–4.0%	20–60	Spray cleaning, etc.
Pre-Electron Beam Welding Cleaner	LE-2000	Liquid	8.60 (1.5%)	Exclusively for pre-electron beam welding cleaning; improves welding quality and reduces defect rate	1.0%–2.0%	50–80	Spray cleaning