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LBT815-II Textile Vertical Flame Propagation Tester

The textile vertical flame‑spread tester is designed and manufactured in accordance with the GB/T 5455 standard, meeting the requirements of relevant standards. It is primarily used to determine the flame‑retardant performance of woven fabrics, knitted fabrics, coated products, laminated products, and other materials.

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Textile and Apparel Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT815-II Textile Vertical Flame Propagation Tester

Description

Product Introduction:

The textile vertical flame‑spread tester is designed and manufactured in accordance with the GB/T 5455 standard and meets the requirements of relevant standards. It is primarily used to evaluate the flame‑retardant performance of woven fabrics, knitted fabrics, coated products, laminated products, and similar materials, determining their tendency to sustain combustion, smolder, and char.

Reference standard:

GB/T 5455-2014 “Textiles — Determination of the Burning Performance: Vertical Direction—Damage Length, Smoldering Duration, and Afterflame Duration”

Product Features:

1. The enclosure is powder-coated and equipped with an observation window for clear visibility.

2. Automatic ignition, automatic timing, and automatic storage of experimental reports;

3. Ignition time can be set arbitrarily from 0 to 99 seconds, with digital display;

4. The flame height is adjustable and equipped with a flame-height measuring tool.

5. The test chamber, control cabinet, and fume hood are integrated into a single unit, saving both space and costs.

7. The Bunsen burner features automatic high-voltage ignition, with an adjustable ignition duration.

8. The inner diameter of the Bunsen burner is 9.5 mm ± 0.3 mm;

9. Gas source: Select the gas in accordance with the moisture‑conditioning requirements (see GB 5455‑2014, Clause 7.3).

Condition A specifies the use of industrial-grade propane, butane, or a propane/butane mixture.

Condition B shall use methane with a purity of not less than 97%.

10. External dimensions: Length × Width × Height 640 × 360 × 930 mm;

11. Internal working dimensions: Length × Width × Height 330 × 330 × 770 mm.

Technical Specifications:

Parameter Category	Parameter content
Operating environmental conditions	Ambient temperature: -10°C to 30°C; relative humidity: ≤85%
Power Supply Specifications	220V ±10%, 50 Hz, power 1 kW
Control method	Touchscreen Display / Control
Bunsen burner flame duration	Can be set arbitrarily, with a time accuracy of ±0.05 s.
Bunsen burner specifications and tilt range	Inner diameter: 9.5 mm ± 0.3 mm; can be tilted within a range of 0–45°.
Height of the blue flame of the Bunsen burner	15mm–45mm, infinitely adjustable

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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LBT815-II Textile Vertical Flame Propagation Tester

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Address:Tianjin Jinghai Economic Development Zone

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