Tumble & Bulk-Part Parylene Coating Systems

High-Throughput Rotating-Drum Equipment for Small Components

Tumble Parylene coating systems are designed for high-throughput coating of large quantities of small components in a single batch. Instead of fixturing each part individually, components are loaded into a rotating drum so that the Parylene vapour reaches every surface as the load turns.

SCH supplies bulk-part and tumble Parylene systems that are ideal for o-rings, elastomer seals, ferrites, small mouldings, contact springs and other small components used across electronics, automotive, aerospace, medical and industrial applications.

As with all SCH projects, these tumble Parylene coating systems are supplied as part of a turnkey, knowledge-transfer package – including process setup, loading methods, training, dimers and long-term technical support.

📞 ✉ 💬 Discuss tumble Parylene systems for your small parts ›

What Are Tumble & Bulk-Part Parylene Coating Systems?

Tumble Parylene coating systems use a rotating drum or basket to gently move parts through the Parylene vapour environment so that all surfaces are exposed during the deposition cycle.

✅ Designed for large batches of small, robust components
✅ Continuous rotation promotes all-round coverage and uniform thickness
✅ Minimises or eliminates individual fixturing, reducing labour and handling cost
✅ Ideal where cost-per-part and throughput are critical

Instead of loading hundreds or thousands of small parts onto racks, operators can load them into the tumble chamber, run a controlled Parylene cycle and then discharge the coated components ready for inspection, packaging or assembly.

Where Do Tumble Parylene Systems Add Value?

Tumble Parylene coating systems are used wherever large numbers of small parts need reliable, pinhole-free protection at an economic cost-per-part.

✅ Manufacturers of elastomer o-rings and seals
✅ Producers of ferrite cores, magnetic components and small inductors
✅ OEMs with small mouldings, clips, springs and fasteners
✅ Coating houses offering bulk-part Parylene services for multiple customers

Typical applications include:

⚙ Moisture and chemical barrier on elastomer seals and gaskets
⚙ Electrical insulation and protection for ferrites, cores and small magnetics
⚙ Corrosion and contamination protection on springs, clips and fasteners
⚙ Parylene finishes on small plastic mouldings used in electronics and medical devices

Tumble Parylene System Configurations

Through our partnership with KaryNano, SCH can supply tumble and bulk-part Parylene coating configurations built around proven KR-series process modules, combined with rotating baskets tailored to your parts.

📦 Rotating-drum chambers sized for your typical batch volume
📦 Basket styles that retain small parts while allowing vapour flow
📦 Liners and inserts to prevent damage or entanglement of delicate items

Each system is configured to balance throughput, coating uniformity and handling simplicity, making it practical to run daily production of bulk small parts under controlled Parylene conditions.

SCH will help define the drum size, loading level and cycle parameters needed to achieve consistent results across the full range of parts you intend to coat.

Key Features of Tumble Parylene Coating Systems

Tumble Parylene coating systems are engineered to deliver repeatable, economic coatings on small parts while controlling mechanical stress and part-to-part variation.

✅ Rotating drum or basket for all-round coating of complex small components
✅ Recipe-driven Parylene process with controlled temperature and pressure
✅ Chamber and basket materials selected for compatibility with Parylene C, N and other variants (subject to configuration)
✅ Options for different drum perforations and liners to suit part size and geometry
✅ Designed for easy loading, unloading and cleaning between batches

Process considerations for bulk-part Parylene coating include:

⚙ Maximum recommended loading per batch to maintain uniformity
⚙ Rotation speed and motion profiles to minimise damage or tangling
⚙ Pre-cleaning and surface preparation requirements for reliable adhesion
⚙ Inspection and sampling methods suitable for large part populations

Knowledge Transfer for Bulk-Part Loading & Quality Control

Successful use of tumble Parylene coating systems depends on how parts are loaded, rotated and inspected as much as on the equipment itself. SCH focuses on transferring the practical methods needed to make bulk-part coating reliable.

✅ Guidance on optimal fill level and loading patterns for different part types
✅ Advice on how to separate or group parts to avoid sticking and shadowing
✅ Training on sampling plans and inspection methods for large batches
✅ Support in creating work instructions, acceptance criteria and quality records

This knowledge-transfer approach helps you move quickly from first trials to stable production, with predictable cost-per-part and consistent coating performance across each batch.

How Tumble Systems Fit Into Your Overall Parylene Capability

Most users of tumble Parylene coating systems also operate other equipment configurations for different product families.

✅ Use vertical systems for PCBs, assemblies and larger components
✅ Use horizontal systems for long parts such as tubing and catheters
✅ Reserve tumble Parylene coating systems for bulk small parts and hardware
✅ Rely on SCH coating services to support overflow or specialist work

By combining tumble equipment with other KR-series configurations, you can build a flexible, scalable Parylene capability that addresses everything from individual high-value devices to large volumes of small components.

Turnkey Support for Tumble Parylene Installations

Bulk-part coating projects often involve production, quality and commercial teams because cost-per-part and reliability are so important. SCH provides structured support from the initial business case through to stable production.

✅ Early discussion of target volumes, part mix and required cost-per-part
✅ Guidance on equipment sizing, utilities and layout for tumble systems
✅ Process development using your own parts and quality requirements
✅ Reliable supply of Parylene dimers and consumables and spares
✅ Ongoing optimisation, troubleshooting and upgrade support

📞 ✉ 💬 Ask about tumble Parylene coating systems for your bulk small parts ›

Why Choose SCH for Tumble & Bulk-Part Parylene Systems?

SCH operates as both a Parylene coating service provider and a supplier of KR-series equipment. This dual role gives us practical insight into how tumble Parylene coating systems must perform in day-to-day production.

✅ Recommendations based on real bulk-part coating experience
✅ Strong focus on knowledge transfer for loading, sampling and quality control
✅ Ability to support you with in-house equipment and external coating capacity
✅ Clear integration between tumble systems and other KR-series equipment sizes
✅ UK-based support with awareness of industrial, automotive, aerospace and medical requirements

If you are planning to coat large quantities of small parts with Parylene, we can help design a solution that balances quality, throughput and commercial performance.

Next Steps: Review Your Bulk-Part Requirements

The best starting point is a short review of your typical components, batch sizes and performance targets.

✅ List the main part types and dimensions (o-rings, ferrites, mouldings, springs, etc.)
✅ Estimate monthly or annual volumes and desired cost-per-part
✅ Identify any critical standards or customer requirements
✅ Decide whether in-house tumble systems, subcontract coating or a mix is best

📞 ✉ 💬 Contact SCH to discuss tumble Parylene options ›

🔗 For a broader view of our capabilities, visit the Parylene equipment overview along with pages on lab systems, small production, mid-scale, large industrial, cleanroom-embedded and horizontal long-part equipment.