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LENJEX industrial ultrasonic cleaning equipment
Plastic and rubber parts cleaning setup

LENJEX Industrial Cleaning

Plastic & Rubber Parts Ultrasonic Cleaning

Removes mold-release agent, oils, particles and processing residues from plastic and rubber parts with mild chemistry.

Why Ultrasonic

Ultrasonic cleaning for Plastic & Rubber Parts

Plastic and rubber parts can retain mold-release agent, oils, particles and processing residues after molding. Gentle ultrasonic cleaning removes these surface contaminants without aggressive solvents that could stress, swell or mark the material.

A general-purpose heated cleaner or benchtop series uses mild, neutral chemistry. The work relates to water-based cleaning.

Temperature and chemistry must be validated against the specific plastic or rubber to avoid deformation or surface change.

Parts basket for plastic components
  • Removes mold-release agent and processing residues
  • Gentle mild chemistry protects polymers
  • Cleans recessed and textured surfaces
  • Avoids aggressive manual scrubbing
  • Repeatable cycles for molded parts

Typical Workpieces

Parts in this application

  • Injection-molded parts
  • Rubber seals and gaskets
  • Textured plastic components
  • Plastic housings and covers
  • Small molded fittings
  • Electronic plastic parts

Contamination

Soils to evaluate

  • Mold-release agent
  • Processing oils and residues
  • Dust and particles
  • Fingerprints
  • Flashing and small debris
Inspection of molded parts

Cleanliness Target

Define clean before choosing equipment

Acceptance is based on surface cleanliness and absence of release agent or residue before assembly, coating or bonding.

Temperature must stay below the point that affects the material.

Recommended Sequence

A process route for evaluation

The final sequence depends on soil loading, material, rinse quality and drying behavior.

  1. Step 1Validate temperature and chemistry for the material
  2. Step 2Gentle ultrasonic wash to remove release agent
  3. Step 3Rinse with mild chemistry
  4. Step 4Dry at a safe temperature
  5. VerifyCheck surface and dimensions

Recommended Equipment

Systems to compare

The final specification follows process testing and production analysis.

Process Controls

Control the variables that change the cleaning result

Confirm the part, soil, loading and final handling before fixing equipment settings.

Control 01

Material and geometry

Record surfaces, cavities and features that can trap air or liquid.

Control 02

Soil condition

Test the heaviest representative contamination, not an ideal sample.

Control 03

Basket loading

Keep acoustic access and part spacing consistent with production.

Control 04

Rinse and drying

Match downstream handling to residue and corrosion risks.

System Selection

Match the cleaning route to production flow

Stage count and automation follow the validated process and required output.

Batch

Single-tank route

Compare for focused washing where rinsing and drying are managed separately.

Multi-stage

Wash, rinse and dry

Add controlled stages when carryover and final condition matter.

Automatic

Repeatable transfer

Evaluate automation when output, handling or recipe control requires it.

Acceptance

Define how the cleaned part will be checked

Use the same practical inspection method for trial samples and production parts.

  • Agree the surface or residue limit
  • Check hidden and difficult features
  • Record rinse, drying and handling conditions
  • Compare results before the next operation

Representative Trial

Confirm the process with real parts and loads

Trial evidence should cover normal production and the most difficult expected condition.

  1. DescribePart, material and contamination.
  2. LoadUse realistic spacing and orientation.
  3. TestRecord chemistry, time and temperature.
  4. VerifyInspect with the agreed method.
Plan a cleaning trialSend project details

Application Questions

Planning the cleaning study

Related Applications

Explore adjacent workpieces