Ultrasonic Systems Built for Passivation-Ready Cleanliness

The passivation process only works if the stainless steel surface is truly clean. Oils, residues, and microscopic debris can prevent acids from properly contacting stainless steel, leading to issues such as inconsistent passivation, corrosion failures, and rejected parts.

TPS Products provides industrial ultrasonic parts washers that help manufacturers achieve passivation‑ready cleanliness. Our industrial ultrasonic parts washers are engineered for deep, microscopic cleaning that supports reliable, repeatable passivation results, even on complex, high-precision components.

What Is Passivation?

Passivation is a chemical surface treatment applied to stainless steel. It removes debris and contaminants from the surface and enhances the metal’s natural corrosion resistance.

The passivation process involves:

Step 1: Cleaning. Oils, coolants, polishing compounds, and shop dirt must be removed.
Step 2: Acid treatment. Parts are immersed in a nitric acid or citric acid bath to dissolve contaminants
Step 3: Oxide layer formation. Exposure to air or water allows a uniform chromium oxide layer to form
Step 4: Rinse & dry. The process leaves a clean, corrosion-resistant surface

TPS Products doesn’t perform passivation services; we provide ultrasonic cleaning equipment to prepare your parts for this chemical treatment.

Why Conventional Cleaning Fails

Spray washers, soak tanks, and manual scrubbing often leave embedded machining oils, polishing compounds, and microscopic particulates on stainless‑steel surfaces. When contaminants remain, the acid bath used in passivation can’t uniformly contact the metal, resulting in uneven oxide layers, reduced corrosion resistance, and costly rework. A truly clean surface is critical to form the protective oxide layer that defines passivation.

The Solution: Ultrasonic Parts Washers for Pre‑Passivation Cleaning

TPS provides multi‑stage TierraTech ultrasonic parts washers that use high‑frequency sound waves to generate millions of microscopic cavitation bubbles. These bubbles implode against the part surface, removing contaminants from blind holes, threads, and internal channels.

Ultrasonic cleaning is widely considered the gold standard for pre-passivation cleaning. TPS Products is proud to offer high-quality, durable ultrasonic parts washers from TierraTech, one of the leading manufacturers in the industry.

Our TierraTech ultrasonic parts washers are a game-changer for the critical pre-passivation cleaning step in high-spec manufacturing environments. They allow you to:

Reach difficult spots, like blind holes, threads, and internal channels
Remove machining oils, polishing compounds, and embedded residues
Deliver uniform surface cleanliness across complex geometries
Prepare stainless steel for consistent, effective passivation

A Proven Passivation-Ready Workflow

By using TierraTech ultrasonic cleaning as the foundation of your process, you can improve passivation consistency, reduce corrosion-related failures, and protect downstream quality and compliance

Machining or fabrication
Ultrasonic cleaning with TierraTech
Rinse
Passivation (nitric or citric acid)
Final rinse and drying

Designed for Passivation-Critical Industries

TierraTech ultrasonic parts washers are trusted by manufacturers where surface integrity and corrosion resistance are non-negotiable.

In aerospace and defense applications, ultrasonic parts washing systems prepare precision-machined stainless steel components for passivation by thoroughly cleaning tight-tolerance parts and complex geometries. By enabling uniform surface preparation, TierraTech washers support ASTM A967 and A380 passivation workflows while reducing the risk of corrosion-related failures.
Manufacturers of food and beverage equipment use ultrasonic parts washers to prepare sanitary stainless steel parts and assemblies for hygienic passivation. Deep ultrasonic cleaning removes residues that can compromise corrosion resistance, helping ensure clean, passivation-ready surfaces that meet sanitation expectations.
Ultrasonic parts washers are widely used in manufacturing, particularly semiconductor and electronics to clean ultra-sensitive stainless steel process hardware. The ability to remove microscopic contaminants from internal passages and complex features makes ultrasonic cleaning essential for high-purity applications where residue impacts performance.
Precision CNC and contract manufacturers use TierraTech ultrasonic cleaning systems to clean stainless steel parts headed directly to passivation. By delivering consistent, microscopic-level cleanliness, you reduce rework, minimize downstream passivation failures, and improve first-pass yield across a wide range of part geometries and production volumes.

Why Our Ultrasonic Washers Are Different

TierraTech doesn’t build generic ultrasonic tanks and that’s why we work with them. These process-critical ultrasonic cleaning systems are designed to perform in demanding industrial environments.

Engineered for Passivation-Ready Results

Optimized ultrasonic frequencies for stainless steel
Uniform cavitation across the tank
Compatible with alkaline and neutral detergents
Easy integration into ASTM-compliant workflows

Designed for Complex Parts

Cleans threads, blind holes, slots, and internal channels
Ideal for parts that spray washers can’t handle
Consistent cleaning batch after batch

Scalable to Your Operation

Benchtop to large-format systems
Manual, semi-automated, or automated lines
Optional heated tanks and multi-stage configurations

Ready to Improve Your Passivation Process?

Ultrasonic cleaning isn’t optional when corrosion resistance matters. TPS Products sells TierraTech ultrasonic parts washers that help manufacturers achieve passivation‑ready cleanliness, protect product performance and comply with industry standards.

Ready to get started?