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LBT-9250A Automatic Door‑Opening and Closing Medium‑to‑Large‑Size Intelligent Electric Heating Forced‑Air Drying Oven

This equipment is suitable for conducting drying and various constant‑temperature adaptation tests on a wide range of products and materials, including electrical and electronic components, instruments, meters, electronic devices, electrical appliances, as well as automotive, aerospace, telecommunications, plastic, mechanical, chemical, food, chemical‑related, and hardware tools, under controlled ambient conditions. The electric heating forced‑air drying oven series features an inner chamber constructed from mirror‑polished stainless steel welded using argon arc welding, while the outer casing is made of high‑quality steel sheet with powder coating and incorporates double‑layer tempered glass. Its design is both elegant and innovative. The unit is equipped with over‑temperature alarm, overheating protection, timer settings, dual‑digit digital display, and a microcomputer‑based temperature control system that ensures precise and reliable temperature regulation. The hot‑air circulation system comprises a fan capable of continuous operation at high temperatures and a well‑designed air duct, ensuring uniform temperature distribution throughout the working chamber.

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Environmental Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT-9250A Automatic Door‑Opening and Closing Medium‑to‑Large‑Size Intelligent Electric Heating Forced‑Air Drying Oven

Description

Product Introduction:

This equipment is suitable for conducting drying and various constant‑temperature suitability tests on a wide range of products and materials, as well as on electrical components, instruments, meters, electronic and electrical devices, and items used in the automotive, aerospace, telecommunications, plastics, machinery, chemical, food, and chemical‑processing industries, under controlled ambient temperature conditions.

The electric heating forced‑air drying oven series features an inner chamber constructed from mirror‑finish stainless steel welded using argon arc welding, while the outer casing is made of high‑quality steel sheet with a powder‑coated finish and incorporates double‑layer tempered glass. The design is both elegant and innovative, equipped with over‑temperature alarm, overheating protection, timer settings, a dual‑display digital readout, and a microcomputer‑based temperature control system that ensures precise and reliable temperature regulation. The product’s hot‑air circulation system comprises a fan capable of continuous operation at high temperatures and a well‑designed air ducting arrangement, ensuring uniform temperature distribution throughout the working chamber.

Technical features:

Adopts a cylinder-type automatic door-opening and closing mechanism.

Inner box material: Made from high-quality mirror-finish stainless steel sheets using argon arc welding.

Outer box material: Made of high-quality steel sheet, formed by CNC machining, with a powder-coated surface.

Observation Window: Double-layer tempered glass window, providing a clear view of the chamber’s condition, with a sleek and modern design.

It features microcomputer‑based intelligent temperature control, overheating protection, and timer settings, with excellent temperature‑control linearity and minimal fluctuations.

The electric-heated, forced-air, constant-temperature drying oven is equipped with a tracking alarm function and features a stirring-type hot-air circulation system, minimizing heat loss. The blower and heating can be operated independently.

Independent over-temperature alarm system that automatically shuts down when the temperature exceeds the set limit, ensuring safe operation and preventing accidents.

An optional RS485 interface is available for connecting to a computer, enabling the recording of temperature parameter trends.

Between the cabinet body and the working chamber, glass wool insulation is filled, providing excellent thermal insulation and effectively ensuring stable, accurate internal temperatures while minimizing environmental influences.

The cabinet door features a stainless steel double-layer insulation structure, providing excellent thermal insulation.

The chamber is equipped with a well-designed hot-air circulation system, ensuring more uniform temperature distribution and faster temperature rise.

Temperature control is implemented using microcomputer‑based intelligent digital technology, featuring industrial‑grade PID auto‑tuning and a four‑digit dual‑LED display. It delivers high temperature‑control accuracy, exceptional anti‑interference performance, and user‑friendly operation.

Technical Specifications:

Parameter item	DHX-9250A	DHX-9420A	DHX-9620A	DHX-9920A
Power supply voltage	220V50HZ	380V50HZ	380V50HZ	380V50HZ
Temperature control range	RT+10~250℃
Temperature resolution	±0.1℃
Temperature fluctuation degree	±0.5℃
Ambient temperature	5~40℃
Input power	2100W	4000W	4500W	6000W
Inner liner dimensions	500x600x750	600x550x1300	800x600x1300	1000x600x1600
External dimensions	650x755x1045	745x750x1670	945x800x1600	1140x800x2150
Cargo rack	2 pieces	3 pieces	3 pieces	3 pieces
Time Range	1-9999min

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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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