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LBT-HW-200 Constant Temperature and Humidity Test Chamber

Manufactured in accordance with relevant standards, this equipment is primarily used for testing the high‑ and low‑temperature performance of masks, face shields, respirators, and similar products. It is suitable for mask and respirator manufacturers, quality‑control agencies, research institutions, and end‑users. Additionally, it can be employed to evaluate the performance characteristics of components and materials used in electronics and electrical engineering, automotive and motorcycle industries, aerospace, shipbuilding and defense, as well as in higher education and research settings, under conditions of elevated and reduced temperatures and cyclic thermal cycling.

Category:

Mask testing instrument

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E-mail:

lbt@lbt.ltd

WhatsApp:

+86-15102211717

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LBT-HW-200 Constant Temperature and Humidity Test Chamber

Description

Product Introduction:

Manufactured in accordance with relevant standards, it is primarily used for high‑ and low‑temperature performance testing of masks, face shields, respirators, and similar protective equipment. It is suitable for mask and respirator manufacturers, quality‑control agencies, research institutions, and end‑users. Additionally, it can be employed to evaluate the performance characteristics of components and materials used in electronics and electrical engineering, automotive and motorcycle industries, aerospace, shipbuilding and defense, as well as in higher education and research settings, under conditions of elevated and reduced temperatures and cyclic thermal cycling.

Product Features:

1. PLC touch-screen operation, fully automated control.

2. Customized tests and programmable test procedures can be selected and edited as needed.

3. Temperature, humidity, and time are all programmable, with setpoints and measured values displayed in real time.

4. The setpoints for temperature and humidity are displayed as graphical curves, with the program curve shown in real time.

5. Features scheduled start-up and shutdown, power‑failure program memory, and automatic restart with resumption of the program upon power restoration.

6. The heating system employs U-shaped heating tubes with stainless steel finned heat-dissipating fins imported from Taiwan.

7. The refrigeration system features a fully hermetic compressor imported from Tecumseh in France, along with the latest environmentally friendly refrigerant R404A sourced from the United States.

8. Air Circulation System: Equipped with a multi-blade centrifugal fan and a sealed‑type motor, it features vertical diffusion, horizontal air exchange, and an arc‑shaped circulation airflow pattern, along with adjustable side vents and a protective grille at the return inlet.

Applicable Standard:

GB/T 2423.1-2001, GB/T 2423.2-2001, GB/T 2423.22-1989

Technical specifications:

Parameter Name	Parameter value
Temperature range	-40℃~150℃ (other ranges available upon request)
Humidity range	20%~98%RH (other ranges to be discussed separately)
Temperature uniformity	Fluctuation ≤ 0.5℃; uniformity ≤ 1℃; deviation ≤ 2℃
Humidity uniformity	Fluctuation ≤ 1%RH; Uniformity ≤ 1%RH; Deviation ≤ 2%RH
Temperature change rate	20℃–40℃, approximately 60 min; 20℃–150℃, approximately 40 min.
Wind speed	1.7~2.5 m/s
Inner box dimensions	400×400×500 mm (80 L), 500×400×600 mm (100 L), 500×600×500 mm (150 L), 500×750×600 mm (200 L) (other dimensions available upon request)
Power supply	380V 50Hz 5KW

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We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

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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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LBT-HW-200 Constant Temperature and Humidity Test Chamber

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E-mail:lbt@lbt.ltd

Address:Tianjin Jinghai Economic Development Zone

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