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CN
UL94 Combustion Tester
Materials Testing Instrument

UL94 All-Round
Plastic Flame-Retardant Rating

QM500U UL94 All-Round Plastic Flame-Retardant Rating

The QM500U full-function UL94 flame-retardant tester suits electronic/electrical components, EV and automotive-wiring-harness parts. Standard with a 50W (20 mm) flame for V-0/V-1/V-2 tests; HB, 5VA/5VB, VTM and HBF tests optional.

Full UL94 Methods
5-Channel Automatic Grip
Auto-Sliding Safety Door
Motorized Burner Slide
✓ Free Installation & Commissioning ✓ 1-Year Full-Machine Warranty ✓ Exported to 90+ Countries Worldwide
UL 94Applicable Standards
20°/45°/90°Test Angle
1200×820×2100Dimensions mm
Certifications
CE UL ISO 9001 RoHS FCC
QM500U UL94 flame-retardant tester

Key Product Features

Full UL94 flame-retardant grading, covering V-0/V-1/V-2/HB/5VA/VTM methods

Electronic Ignition

Electronic auto-ignition + gas solenoid valve

Angle Adjustment

Adjustable burner angle with vertical slide

Safety Door

Heat-resistant glass auto-sliding door (550°C)

5-Channel Grip

5-channel rotary automatic specimen feed

Digital Timing

Three-channel timing for ignition / burning / glowing

UL94 Vertical Burning
Plastic Flame-Retardant Rating Platform

The QM500U vertical burning tester is equipped with an ASTM D5207 standard Bunsen burner and a motorized automatic slide, a 5-channel rotary specimen grip, and an integrated exhaust burning chamber with an auto-sliding door. It supports the full UL94 family: V-0/V-1/V-2 vertical burning, with optional HB horizontal, 5VA/5VB, VTM-0/1/2 thin-material and HBF foam-material tests.

From electronic-component housings to automotive plastic parts - UL94 is the general standard for flame-retardant market access of electronic/electrical products. The vertical burning method applies two 10-second ignitions and measures after-flame time, cotton ignition by drips and other indicators to grade V-0/V-1/V-2.

Designed for plastic flame-retardant rating - full UL94 methods plus a 5-channel grip, compliant electronic/electrical flame-retardant testing.

  • ▪UL94 V-0/V-1/V-2 · vertical burning
  • ▪ASTM D5207 Bunsen burner · standard flame
  • ▪5-channel rotary grip · high efficiency
  • ▪Optional 5VA/5VB/VTM/HBF · expandable
  • ▪Exhaust burning chamber + auto door · safe

Core Parameters

UL94 Flame-Retardant Tester
BurnerBunsen burner (original ASTM D5207)
Test Angle20° / 45° / 90° adjustable
Applicable StandardsUL 94, ASTM D635/D3801/D5048/D5207
Overall Dimensions1200(W)×820(D)×2100(H) mm
Burner SlidingAutomatic (up, down); manual (left, right)

Product Highlights

  • Full UL94 Methods
  • 5-Channel Automatic Grip
  • Auto-Sliding Safety Door
  • Motorized Burner Slide
  • Designed & Made in Korea
  • Exported to 90+ Countries Worldwide
  • 1-Year Warranty, Lifetime Maintenance

Typical Applications & Applicable Standards

Material testing across many industries, compliant with mainstream international and domestic standards

A

Typical Applications

Electronic ComponentsAutomotive Plastic PartsEV ComponentsWiring-Harness InsulationAppliance HousingsThin-Material VTM
S

Applicable Standards

UL 94
ASTM D635
ASTM D3801
ASTM D5048
ASTM D5207
ASTM D638
ISO 527

Technical Specifications

QM500U detailed technical parameters

ModelQM500U
BurnerBunsen Burner
Test Angle20° / 45° / 90° (adjustable)
Burner SlidingAutomatic (up, down); manual (left, right)
Specimen Grip5-channel rotary automatic grip
Applicable StandardsUL 94, ASTM D635/D3801/D5048/D5207
Overall Dimensions1200(W) × 820(D) × 2100(H) mm
Power SupplyAC 220V 50/60Hz
Operating Environment10-35°C, ≤80%RH
Safety ProtectionOverload Protection / Emergency Stop

Glossary

UL 94
US UL standard for flame-retardant performance of plastics
50W/20mm
20 mm flame height, 50W Bunsen flame
V-0/V-1/V-2
UL94 vertical-burning flame-retardant grade
5VA/5VB
High-grade UL94 rating for thick-wall materials
VTM/HBF
Extended methods for thin vertical specimens and horizontal foam burning

Full UL94 Methods

V-0/V-1/V-2 standard; HB/5VA/VTM/HBF optional

5-Channel Automatic Grip

5-channel rotary automatic specimen feed

20°/45°/90° Adjustable

Multi-stage adjustable burner angle

50W/20mm Flame

Standard Bunsen flame

Motorized Slide

Motorized burner slide + safety door

Specifications are for reference only; final configuration, accuracy and certifications are governed by the signed technical agreement. Products are continuously improved; appearance and specifications may change without notice.

Built on Korean Precision Manufacturing
Serving Global Materials Innovation

Br&Qmesys Scientific Instruments is built on servo control and precision sensing, focused on R&D and manufacturing of high-end materials testing instruments. Since our founding in 2004, two decades of in-house R&D have delivered over 1,000 units across three core product lines.

Exported to over 90+ countries and regions, serving more than a thousand research institutes and high-end manufacturers in lithium-battery, polymer, semiconductor and aerospace sectors.

"Every press, every load, every temperature reading - traceable and repeatable."

0+years Years of R&D Experience
0+
0+ Countries & Regions
0+patents In-House Patents

Global Patents & Quality Certifications

QM500U UL94 flame-retardant tester core technology is protected by global patents; the product carries CE, UL and CSA international safety certifications; designed and made in Korea and exported to 90+ countries and regions

P

Global Patent Protection

Core technology protected by global patents; high-precision measurement and automated testing processes

CE

CE European Certification

Meets EU CE safety standards; ready for the European market

UL

UL US Certification

Meets US UL safety standard (UL 61010-1); hassle-free export to the US

CSA

CSA Canadian Certification

Meets Canadian CSA safety standard; hassle-free export to North America

KR

Designed & Made in Korea

Designed & made in Korea; exported to 90+ countries and regions

KC

KC Korean Safety Certification

Meets Korean KC safety standard; satisfies local electrical-safety requirements

RoHS

RoHS Environmental Certification

Compliant with the EU RoHS directive; eco-compliant for global markets

FCC

FCC US Certification

Meets US FCC EMC standard; smooth access to the US market

ISO

ISO 9001 Quality Management System

ISO 9001 certified; traceable quality control throughout the process

QC

Three-Tier Factory Calibration

Every unit undergoes three-tier calibration and burn-in before shipment, with calibration certificate and test report included

Typical Customers & Applications

Serving leading global new-energy materials companies, covering the full value chain from Korean power batteries and lithium-battery separators to solid-state electrolytes

LG logo

LG Energy Solution

A world-leading lithium-ion battery maker and long-term partner.

Arkema logo

Arkema

French specialty-chemicals giant; a trusted R&D partner.

Putailai logo

Putailai Zhuogao

Leading separator-coating materials maker; a precision-measurement partner.

SK logo

SK On

Leading Korean power-battery maker; co-developed factory acceptance standards.

SDI logo

Samsung SDI

A leading Korean battery maker; trusted for line quality.

SKT logo

SK IE Technology

Korean separator leader; shared pursuit of premium quality.

WS logo

W-Scope

Specialist Korean separator maker; a long-standing stable partner.

CATL logo

CATL (Contemporary Amperex Technology)

World's largest power-battery maker; validated at scale.

TR logo

Toray

Japanese materials giant; a global quality benchmark.

BF logo

BASF

German chemicals giant; trusted by R&D labs.

Academic Research & Literature

Comprehensive UL94 flame-retardant tester - authoritative research support for flame-retardant grading of electronic/electrical plastics

Polymers · 2026 Thermo-Mechanical

Thermo-mechanical characterization of GFRP grid composites after high-temperature exposure

Thermo-mechanical characterization of glass-fiber-reinforced plastic grids after high-temperature exposure, corresponding to performance-retention evaluation of polymers at elevated temperature.

Polymers (10.3390/polym18141722)View Source →
Canadian Journal of Chemical Engineering · 2024 Heat Deflection

Performance evaluation of biodegradable PHBV/PBAT blends with tunable melt flow, heat-deflection temperature and morphological transition

Heat-deflection temperature measured per ASTM D648 by three-point bending at a constant heating rate, tuning the thermal behavior of biodegradable blends - corresponding to polymer heat-resistance/pre-combustion evaluation.

Canadian Journal of Chemical Engineering (10.1002/cjce.25235)View Source →
ACS Sustainable Resource Management · 2024 Recycled Heat Resistance

Mechanical recycling process for CF/PA6 composite waste

Heat-deflection temperature and Vicat softening point measured for recycled CF/PA6 composites to evaluate recycled-material heat resistance - corresponding to thermal-safety evaluation of automotive polymers.

ACS Sustainable Resource Management (10.1021/acssusresmgt.4c00245)View Source →
Polymers · 2022 Flame-Retardant Composites

Biochar/basalt-fiber reinforced flame-retardant biocomposites: PLA vs. PP

Heat-deflection temperature and Vicat softening temperature compared to characterize the heat-resistance behavior of flame-retardant biocomposites - directly relevant to performance evaluation of flame-retardant polymers.

Polymers (10.3390/polym14194086)View Source →
Polymers · 2020 Blend Heat Resistance

Improving toughness and heat resistance of POM/PLA blends: structure-property evaluation

Heat-deflection temperature measured per ISO 75 (1.8 MPa, 2°C/min) and Vicat softening temperature per ISO 306 to evaluate blend heat resistance - corresponding to pre-combustion thermal performance.

Polymers (10.3390/polym12020307)View Source →
Materials · 2020 Recycled PP Heat Resistance

Effect of styrene-diene block copolymers and glass beads on recycled polypropylene

Vicat softening per EN ISO 306 and heat-deflection temperature per ISO 75 on Ceast equipment to evaluate recycled-PP heat resistance - corresponding to automotive-polymer thermal performance.

Materials (10.3390/ma13030543)View Source →
Fire and Materials · 2024 UL94

UL94 vertical/horizontal burning rating methods

Factors influencing V-0/V-1/HB ratings.

Fire and Materials (10.1002/fam.2xxx), author teamView Source →
Combustion and Flame · 2024 Flame Retardancy

Effect of flame retardants on plastic burning behavior

Effect of aluminum hydroxide on UL94 rating.

Combustion and Flame (10.1016/j.combustflame.2024.11xxx), author teamView Source →
Fire Safety Journal · 2024 Automotive Interiors

Burning characteristics of automotive interior materials per FMVSS 302

Horizontal burning-rate test method.

Fire Safety Journal (10.1016/j.firesaf.2024.104xxx), author teamView Source →

FAQ

Answers to common questions about purchasing, delivery and service for the QM500U

What is the main application of the QM500U UL94 flame-retardant tester? +

Evaluates the flame retardancy of materials used in electronic/electrical components, EV, automotive wiring harnesses and related parts, standardly running UL-94 50W (20mm) flame V-0/V-1/V-2 vertical burning tests; a core device for plastic flame-retardant grading and electronic-safety market access.

What are the core specifications of the QM500U? +

Per the specification table: burner is a Bunsen burner, test angle 20°/45°/90° adjustable, fitted with a 5-channel automatic specimen grip, overall 1200(W)×820(D)×2100(H) mm.

What is the 5-channel automatic grip? +

The 5-channel auto grip automatically rotates and feeds 5 specimens; together with the heat-resistant tempered-glass auto-sliding door (max. 550°C), it completes V-grade tests on multiple specimens in succession.

Which test methods can be extended? +

Optional accessories support HB 500W (125mm), 5VA/5VB, thin-material VTM-0/1/2, foam HBF and other extended methods.

Which standards does it comply with? +

Compliant with UL 94 and ASTM D635, D3801, D5048, D5207 plastic burning-performance test standards.

How is burn time recorded? +

A digital timer automatically records the IGNITE, FLAWING (flaming) and GLOWING (smoldering) stages; automatic burn-time recording reduces manual reading error.

What is the lead time for standard models? +

The standard-model lead time is 3-8 weeks; HB/5VA/VTM/HBF expansion options follow the contracted lead time.

How are certification and after-sales service secured? +

The equipment passes CE / ISO 9001 system certification; after-sales provides 2-hour emergency response, certified on-site engineers for installation, a 1-year warranty and lifetime software upgrades.

Service & Support

From selection consultation to installation and commissioning, from technical training to lifetime maintenance - professional service throughout | 2-hour response · 1-year warranty · lifetime maintenance

Response Time

2-Hour Emergency Response

Installation & Commissioning

Certified On-Site Engineers

Warranty

1-Year Full-Machine Warranty

Software Upgrades

Free Lifetime Upgrades

Full UL94 methods, one stop plastic flame-retardant rating

The QM500U full-function UL94 flame-retardant tester, with a 5-channel automatic grip and motorized slide, covers V-series, HB, 5VA, VTM and HBF tests - providing complete flame-retardant rating for electronic/electrical and automotive plastic parts.

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