Horizontal Vertical Flame Test Chamber | UL 94 IEC 60695-11-3 IEC 60695-11-4 Flammability Tester

Horizontal Vertical Flame Test Chamber | UL 94 IEC 60695-11-3 IEC 60695-11-4 Flammability Tester

The Horizontal Vertical Flame Test Chamber is a professional flammability tester manufactured by KingPo. It is specifically designed to perform horizontal and vertical burning tests to accurately determine the flammability classification of plastic materials and electrical components under controlled laboratory conditions.

Widely adopted for fire safety assessment in household appliances, lighting equipment, consumer electronics, IT equipment and automotive electronics, the chamber enables manufacturers and certification laboratories to classify materials according to HB, V-0/V-1/V-2, 5VA/5VB and other ratings. It plays a critical role in material selection, product development, quality control and regulatory compliance, helping to reduce fire hazards and ensure reliable product safety in end-use applications.

Technical Parameters

Horizontal Vertical Flame Test Specifications

The Horizontal Vertical Flame Test Chamber is built with a robust, high-temperature resistant coated steel enclosure and an independent forced-exhaust system to safely remove combustion by-products during testing. The Bunsen burner is mounted on a precision indexable carriage that provides quick, repeatable manual switching between 0°, 20° and 45° angles with accurate positioning. Flame height is precisely adjustable and remains stable throughout the test cycle. The timing system employs a high-accuracy 0.1 s digital counter for ignition, residual flame and afterglow recording. All critical mechanical and control components are engineered for long-term stability, minimal maintenance and consistent performance in daily laboratory use.

Horizontal Vertical Flame Test Chamber – KingPo Application in Flammability Lab

Testing Principle

The tester applies a controlled flame from a calibrated Bunsen burner to the test specimen at a specified angle and height. The specimen is evaluated based on its burning rate (horizontal test), afterflame time (Te), afterglow time, and whether flaming drips ignite the cotton indicator placed below. These measurements determine the material’s flammability classification (HB, V-0, V-1, V-2, 5VA, 5VB, etc.) according to the relevant standards.

Common Error Mitigation

To achieve maximum repeatability, always verify flame height and burner angle before starting each test, and use the correct gas source with calibrated flow rate. Position the specimen exactly according to the standard requirements and record afterflame and afterglow times immediately after flame removal. Perform regular inspection of the burner orifice, carriage mechanism and timing system. Clean the test chamber after each use to prevent residue buildup that could affect test accuracy or safety.

Primary Use Cases & Business Value

Primary Use Cases & Business Value The Horizontal Vertical Flame Test Chamber is the preferred instrument for electrical product manufacturers and independent certification laboratories to determine the flammability classification of plastic materials and components. It provides reliable, repeatable test data that supports material selection, design optimization, quality assurance and regulatory compliance, ultimately reducing fire hazards and accelerating product certification for market release.

Industrial Applications & Lab Scenarios

• Electrical Equipment Manufacturers — Flammability testing of enclosures and insulating materials in household appliances, lighting equipment and switchgear
• Third-Party Certification Laboratories — Compliance testing according to UL 94 and IEC 60695-11-3/11-4
• R&D Departments — Material selection and optimization for improved fire safety performance
• Quality Control Teams — Batch verification of plastic components during production
• Regulatory Compliance Teams — Generation of test reports for product certification and market approval

Strategic Procurement Advantages & Global Support

• High-Efficiency Testing: Multi-angle adjustment and precise timing for fast, repeatable UL 94 and IEC 60695 testing.
• Certified Manufacturing: ISO 9001/14001/45001 and CE certified production with ISO 17025 traceable calibration ensures laboratory-grade reliability.
• Reliability & Support: KingPo’s flammability series is based on over a decade of refinement in electrical safety testing. Each unit undergoes rigorous factory calibration in our Dongguan facility and is backed by a full one-year warranty, on-site installation guidance, and lifetime technical engineering support.