DD-250 Dual Drum Flex Circuit Laminator

Precision Lamination of Flexible Circuits to Heat Sinks

The DD-250 Dual Drum Flex Circuit Laminator is designed to accurately laminate flexible circuits to heat sinks using a controlled, repeatable rolling-lamination process.

During operation, the operator manually places the heat sink onto a locating fixture and positions either a die-cut pressure-sensitive tape or printed circuit board onto the vacuum-assisted applying drum. Retractable locating pins ensure accurate positioning of both the tape and the flex circuit prior to lamination.

The lamination cycle rolls the material onto the heat sink as the assembly is traversed beneath the vacuum drum, producing consistent, precise bonding results.

Download Datasheet – DD-250 Dual Drum Flex Circuit Laminator

Overview

Dual-Drum Lamination Made Precise

The DD-250 uses a two-stage lamination process to first apply the adhesive material and then apply the flexible circuit after liner removal. Each step is performed with controlled pressure and alignment to ensure consistent placement.

Indicators on each drum provide clear visual alignment reference, while an air-pressure-controlled platen delivers uniform lamination force across the full application area. This design helps minimize variation and supports tight placement tolerances required in electronic assemblies.

Accuracy Where It Matters Most

By combining vacuum drum positioning, retractable locating pins, and pressure-controlled lamination, the DD-250 delivers repeatable accuracy for both tape and flex-circuit placement.

Operators gain a controlled and intuitive process, while engineering teams benefit from precise, documented alignment performance suitable for high-value assemblies.

One Laminator — Flexible Assembly Capability

The DD-250 is designed to support a range of flexible circuit and heat-sink configurations and can accommodate:

Die-cut pressure-sensitive double-coated tapes
Flexible circuits of varying sizes
Manual loading with guided fixturing
Integration into controlled assembly environments

Built-in light curtain guarding provides operator safety while maintaining accessibility and workflow efficiency.

Built to Match Your Assembly Requirements

The DD-250 Dual Drum Flex Circuit Laminator is available with optional features to support quality control and ease of operation, including:

Liner remover option
Simplifies liner handling between lamination steps
Heat-sink presence sensors
Verify accurate positioning of the heat sink prior to lamination

Straub Design engineers work closely with customers to configure the DD-250 tooling and options to match specific circuit geometries and heat-sink designs.

Performance & Standards

Tape & Flex Circuit Capabilities

Tape type: Die-cut pressure-sensitive double-coated tape
Flex circuit size (minimum): 2″ W × 3.5″ L (50.8 mm × 88.9 mm)
Flex circuit size (maximum): 17″ W × 10.5″ L (431.8 mm × 266.7 mm)

(dependent on tooling pin location; larger sizes available for special applications)

Accuracy

Tape placement accuracy: ± 0.012″ (± 0.30 mm)
Flex circuit application accuracy: ± 0.012″ (± 0.30 mm)

(dependent on product accuracy)

Performance

Application rate: 0.10″–10″ per second (2.5–254 mm/s) Machine & Utilities
Electrical: 220 VAC, single-phase, 50/60 Hz, 30 A
Air requirement: 80 PSI (≈ 550 kPa)
Vacuum system: Included

Physical

Machine size: 7.5′ W × 3′ D × 4.5′ H (2,286 mm × 914 mm × 1,372 mm)

Need a Custom Flex-Circuit Lamination Solution?

If the DD-250 does not perfectly match your application requirements, Straub Design can help.

We specialize in engineered lamination and tape-application systems, including custom fixturing, precision tooling, and fully integrated assembly solutions designed around your components and production goals.

We don’t just supply equipment—we partner with you to deliver repeatable, production-ready results.