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LBT-255LR Thermal and Vacuum Environmental Test Chamber

Name: LBT-255LR Thermal and Vacuum Environmental Test Chamber
Brand: Laibote (Tianjin) Testing Machinery
Availability: InStock

This product series conducts thermal cycling tests on specimens under vacuum conditions. It is suitable for use in the aerospace, intelligent manufacturing, new energy, electronic instrumentation, electrical materials, automotive, metallurgical, and electronic product industries, as well as for evaluating the performance characteristics of various electronic components in high‑temperature vacuum environments and for quality management purposes. It is also employed for drying, baking, and heat‑treating materials. Furthermore, it can simulate the vacuum, cold‑black, and solar radiation conditions of space in a ground‑based setting, enabling thermal vacuum tests and thermal balance tests. Additionally, it can replicate the extreme thermal conditions of the vacuum environment, allowing for thermal vacuum testing of test articles while effectively controlling, monitoring, and recording the temperature of specimens exposed to vacuum. These capabilities provide essential conditions for conducting tests on related aerospace products. During simulated testing, specimens are typically operated under working conditions, with their operational and environmental parameters measured.

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Environmental Testing Equipment

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E-mail:

lbt@lbt.ltd

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+86-15102211717

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LBT-255LR Thermal and Vacuum Environmental Test Chamber

Description

Product Introduction:

This product series conducts thermal cycling tests on test specimens under vacuum conditions. It is suitable for use in the aerospace, intelligent manufacturing, new energy, electronic instrumentation, electrical materials, automotive, metallurgical, and electronic product industries, as well as for evaluating the performance characteristics of various electronic components in high‑temperature vacuum environments and for quality management purposes. It is also employed for drying, baking, and heat‑treating materials. Furthermore, it can simulate the vacuum, cold‑black, and solar radiation conditions of space in a ground‑based setting, enabling thermal vacuum and thermal balance tests. Additionally, it can replicate the extreme thermal conditions of the vacuum environment, allowing for thermal vacuum testing of specimens while effectively controlling, monitoring, and recording their temperatures in the vacuum chamber—providing essential conditions for research and testing of related aerospace products. During simulated testing, specimens are typically operated under working conditions, with both operational and environmental parameters measured.

Product Features:

l A single‑use, high‑temperature‑resistant silicone rubber door seal, integrally molded in one piece, is installed between the chamber and the glass door to ensure effective sealing and maintain a high vacuum level inside the chamber.

l Buckle-type elastic adjustment door lock, ensuring excellent vacuum integrity.

The enclosure is made of high-quality cold-rolled steel sheet, with an electrostatic powder-coated finish that provides a hard, durable coating and excellent rust resistance.

l The worktop is made of high-quality stainless steel, featuring rounded corners, a smooth and streamlined design, and easy cleaning.

The space between the cabinet body and the working chamber is filled with ultra-fine glass wool insulation, providing excellent thermal insulation and ensuring stable, accurate internal temperatures while minimizing environmental influences.

The chamber door features a double-layer tempered glass construction, allowing clear observation of the heated items inside while providing excellent thermal insulation. This effectively prevents burns to operators.

l The heater is mounted on the outer surface of the chamber to maximize temperature uniformity inside and facilitate interior cleaning.

Technical Specifications:

Device Model/Name	LBT-255LR Thermal‑Vacuum Environmental Test Chamber, Space‑to‑Earth Environment Simulator, Thermal‑Vacuum Environmental Test Chamber
Temperature control range	-70~+120℃
Vacuum chamber dimensions	600600700mm (WidthDepthHeight)
Operating chamber dimensions	620470370mm (WidthDepthHeight)
Ultimate vacuum level	Limit: 10⁴ Pa (i.e., 0.0001 Pa)
Temperature resolution	0.1℃
Temperature fluctuation degree	±0.2℃ (under steady-state conditions)
Heating/cooling rate	The surface temperature of the thermal load plate increases at a rate of 1.0–3°C/min (with an accuracy of ±0.5°C).
Power Supply/Voltage	380V/50Hz three-phase five-wire system
Nitrogen flow rate	0~100 L/min
Equipment external dimensions	13001101800mm
Heating method	Built-in hot-and-cold plate (4 sides)
Main Pump System	Front-stage pump: scroll dry pump (rapidly starts to reduce pressure when dropping from atmospheric pressure to 10 Pa) Secondary pump: composite molecular pump (pressure reduction begins when the pressure drops from 10 Pa to 10⁻⁴ Pa)
Temperature Monitoring System	PT100 platinum resistance thermometer
Cooling and temperature reduction method	Imported compressor cascade refrigeration
Vacuum level display method	Ruibao standalone digital vacuum gauge with touchscreen display
Temperature display mode	Color touchscreen digital display; features real-time temperature recording, batch recording and query of curve data, and storage and historical review of alarm and fault logs.
Vacuuming method	Automatic vacuuming
Enclosure structure	An independent heating chamber is controlled, and the vacuum system is connected to the heating chamber via piping.
Equipment material	The inner liner is made of high-quality SUS304 stainless steel, while the outer frame is constructed from cold-rolled steel sheets welded to channel sections, with an electrostatic powder-coated finish.
Door seal material	The door closure tightness is adjustable, and the unit features an integrally molded, Japan‑imported fluorocarbon door seal to ensure a high vacuum inside the chamber.
Insulation material	High-Temperature-Resistant Fireproof Aluminum Silicate
Sensor	High-temperature thermocouple
Safety device	Over-temperature alarm that cuts off the heating power supply, leakage protection, filament‑breakage alarm, phase‑loss protection, grounding protection, and other safeguards.
Installed capacity	11KW
Net weight of the entire machine	550KG

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

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?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

Which materials can be measured by your Vicat softening point tester?

It measures heat deflection temperature and Vicat softening temperature of plastics, hard rubber, nylon, insulating materials and fiber-reinforced thermosetting composites. Intelligent temperature control guarantees precise heating rate, ideal for plastic raw material incoming inspection and formula development in plastic factories.

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.

What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

Customer Reviews

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.”

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.”

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.”

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