Mingsheng Environmental Testing Equipment · Non-standard Customization Expert

Low Pressure Test Chamber
and High-Altitude Simulation Customization

Fully customized by your sample size, quantity and on-site conditions for aerospace, new energy batteries and plateau electronics. Supporting low pressure down to 0.5kPa combined with a -70℃~+150℃ wide temperature range, fully meeting GB/T 2423.21, UN38.3, GJB 150.2 and RTCA DO-160.

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Low pressure test chamber and high-altitude simulation chamber

0.5 kPa

Extreme Low Pressure

-70 ~+150℃

Temperature Range

≤45 min

Rapid Decompression Time

±0.1 kPa

Pressure Control Accuracy

Customization Capabilities

Full-Dimensional Non-standard Customization
Precisely Matching Test Requirements

Fully customizable dimensions, structure, refrigeration and vacuum systems, temperature-pressure control and safety protection to match your test conditions.

Size & Space Customization

Internal effective space customized by sample size and quantity
Door size, position and opening method designed on demand
Explosion-proof observation window size, quantity and position flexibly configured

Vacuum & Decompression System Customization

Rotary vane pump and molecular pump cascade vacuum system options
Programmable control of decompression rate from atmospheric pressure to 0.5kPa
Low-pressure stabilization and dynamic gas-replenishment balance system design

Chamber Pressure Resistance & Safety Customization

Aviation-grade thickened pressure-bearing steel plate with anti-deformation reinforcement ribs
Explosion-proof relief design for UN38.3 lithium battery testing
Door multi-locking and extreme negative-pressure sealing protection

Temperature-Pressure Composite Intelligent Control

Temperature-altitude profile synchronized programming and cycle control
Intelligent pressure deviation correction and low-pressure dynamic gas replenishment
Remote host monitoring and temperature-pressure data export

Customization Parameter Range Reference

Beyond standard low pressure chambers, we offer full non-standard customization around your sample size, extreme test requirements and on-site conditions. Below is the customizable core parameter range; contact an engineer for specifics. Parameters are measured at 25°C ambient, no-load.

Exclusive Solution Get Free Selection Design Solution

Parameter Category	Technical Indicator	Customization Range / Specification
Performance	Pressure Range	Atmospheric pressure ~ 0.5kPa (simulating altitudes up to 35,000 meters) * Optional ultra-high vacuum system with lower limit of 0.1kPa
	Decompression Time	≤45min (atmospheric pressure to 0.5kPa) * Higher-power vacuum pump groups can be customized for rapid evacuation and explosive decompression
	Pressure Deviation	Atmospheric~40kPa: ±1.8kPa; 40kPa~4kPa: ±4.5%; 4kPa~0.5kPa: ±0.1kPa
	Temperature Range	Fully customized by test requirements; common ranges: -20℃~+150℃ / -40℃~+150℃ / -70℃~+150℃ * Supports extension to +200℃ or wider temperature range
	Temperature Fluctuation	Temperature fluctuation ≤±0.5℃ (measured under atmospheric pressure no-load conditions) * Higher accuracy and low-pressure heat conduction optimization can be customized
Control & Actuation System	Controller	Imported programmable touch temperature-pressure composite controller, supporting multi-segment programming and temperature-altitude profile synchronized control
	Accuracy Range	Set accuracy: temperature ±0.1℃, pressure ±0.1kPa; indication accuracy: temperature ±0.1℃, pressure ±0.1kPa
	Core Sensors	High-precision platinum resistance PT100Ω / imported high-precision electronic pressure transmitter
	Vacuum System	Brand rotary vane vacuum pump (molecular/roots pump optional), with dynamic proportional valve gas-replenishment control
	Refrigeration System	French Tecumseh / German Bizer and other internationally renowned brand compressors, cascade refrigeration system, air/water cooled optional
	Communication Interface	RS232/RS485/Ethernet optional, supporting host monitoring and real-time temperature-pressure data recording and export
Materials	Outer Cabinet Material	Premium cold-rolled steel plate, phosphated electrostatic spraying, color customizable
	Inner Cabinet Material	Thickened SUS304 mirror stainless steel plate, densely reinforced with high-strength channel steel ribs externally * Ensuring high pressure resistance without deformation at 0.5kPa extreme negative pressure
	Insulation Material	High-density rigid polyurethane foam and fine glass fiber cotton, thickness customized by temperature zone requirements
	Door Frame Seal	Customized double-layer high/low temperature resistant silicone rubber seal and high-strength mechanical locking mechanism, ensuring vacuum leak-tightness
Dimensions & Structure	Internal Dimensions / Volume	Fully customized by sample size, quantity and on-site space * From miniature component test chambers to large walk-in high-altitude simulation chambers
	Door Design	Single/double door options, with built-in explosion-proof anti-fog vacuum observation window
	Load Capacity	Base plate load capacity customizable from tens of kilograms to several tons; special power rails and trolley guides can be pre-embedded
	Installation Method	Integrated/split type optional; on-site assembly and vacuum pipeline laying services provided for large walk-in chambers
Safety Protection	Standard Protection	Chamber over-pressure protection, vacuum pump overheat protection, leakage, short-circuit, over-temperature, motor overheat, compressor over-pressure/overload protection, controller power-failure memory
Safety Protection	Special Protection	Explosion-proof relief ports, fire alarm, smoke alarm and automatic fire suppression customized for lithium batteries and high-risk tests
Power Requirements		AC380V±10% 50±0.5Hz three-phase four-wire or other power specifications customizable by on-site conditions
Standard Configuration		High-strength pressure-bearing sample rack, vacuum-sealed lead holes, explosion-proof lighting, etc., configurable by demand

Compliant with the Following Test Standards

GB/T 2423.21 Test M: Low Pressure Test
GB/T 2423.25 Low Temperature / Low Pressure Combined
GB/T 2423.26 High Temperature / Low Pressure Combined
GJB 150.2A Low Pressure (Altitude) Test
UN38.3 T1 Lithium Battery Aviation Low Pressure Test
RTCA DO-160 Airborne Equipment Environmental Test
MIL-STD-810H 500.6 Low Pressure Test
ISO 16750 Road Vehicle Plateau Adaptability

Core Equipment Craftsmanship

Extremely Rigorous Vacuum & Manufacturing Craftsmanship

From pressure-bearing liner full welding to vacuum pipeline dynamic sealing and thin-air heat conduction compensation, every chamber is built to precision-instrument standards.

Temperature-Pressure Dual PID Coupling Control

A new-generation AI algorithm independently regulates temperature and pressure to precisely track temperature-altitude profiles, avoiding multi-variable interference for industry-leading control accuracy.

High Pressure-Resistant Vacuum Sealed Chamber

The thickened SUS304 mirror stainless steel liner is externally reinforced with high-strength channel steel ribs and fully welded, eliminating deformation and stress cracking at 0.5kPa extreme negative pressure.

Aviation-Grade Piping & Dynamic Sealing

The door uses double-layer high/low temperature silicone rubber seals with mechanical locking; vacuum piping uses oxygen-free welding and clamp quick-connect for extremely low leakage and stable pressure.

Thin Air Environment Heat Conduction Optimization

To counter heat conduction attenuation from weakened air convection, CFD-optimized ducts and heating/refrigeration compensation ensure temperature uniformity and stability at extreme low pressure.

Lithium Battery Explosion-Proof & Multiple Safety Protection

Customized for UN38.3 testing with optional explosion-proof relief ports, smoke alarm and fire suppression, plus standard vacuum pump overheat and chamber over-pressure protection with dual pressure sensor redundancy.

Modular Flexible Assembly Architecture

A modular "base + temperature-pressure system + control terminal" architecture enables rapid configuration and efficient maintenance from desktop units to full-vehicle walk-in chambers.

Higher Requirements for Craftsmanship Standards?

Every unit is rigorously tested from material selection to delivery. Tell us your requirements and we will provide one-on-one craftsmanship customization.

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Customization Process

Custom Chamber Customization
Standard Delivery Process

Customizing a chamber is like tailoring a suit. Our rigorous 5-step process, from requirements to delivery, ensures the equipment fully matches your test requirements.

2Hours

Rapid preliminary solution

100%

Meets testing standard specifications

72h

Factory extreme aging run

1Year

Free full-machine warranty

Senior Engineering Team On-site

Large walk-in test rooms are provided with factory-engineer on-site survey, installation and SAT acceptance services.

Requirements Alignment & On-site Survey

Interviews lock in sample size, heat generation and key parameters. For large equipment, engineers conduct on-site site and power surveys.

Confirm temperature/humidity and vacuum limits Assess site ventilation and load-bearing

Design & Confirmation

3D modeling and CFD simulation produce CAD and layout drawings plus system calculations. We then finalize the technical agreement and acceptance standards.

Output 3D structural drawings Provide temperature-pressure control calculation sheet

Flexible Production & Precision Manufacturing

Using international first-tier components, from laser-cut sheet metal to nitrogen-filled oxygen-free pipe welding. The stainless steel liner is fully argon-arc welded to prevent cracking or leakage.

Nitrogen-filled oxygen-free pipe welding International first-tier component assembly

Pre-shipment Inspection & Acceptance

A continuous 72-hour no-load/loaded operation test verifies performance, with multi-point calibration of temperature uniformity and a full factory inspection report.

72h extreme aging assessment Issue full FAT report

On-site Delivery & SAT Acceptance

Dedicated transport with on-site assembly, commissioning and system integration, plus third-party metrology verification and operation training.

Start Non-standard Assessment Now

Vertical Industry Solutions

Covering Multi-industry Application Scenarios
Providing Customized High-Altitude Simulation Solutions

Covering new energy batteries, automotive electronics, military & aerospace and communications & semiconductor, with composite environmental testing solutions that meet stringent standards.

Industry 01 New Energy Power Battery

UN38.3 Air Transport Low Pressure Safety Certification

For lithium battery air transport and plateau applications, UN38.3 T.1 11.6kPa low-pressure hold testing (up to 6 hours) verifies sealing under internal-external pressure difference to prevent swelling, leakage or safety valve opening, with optional explosion-proof and fire-proof protection.

Precisely and stably controls 11.6kPa test pressure

Comprehensive explosion-proof relief and fire protection linkage

Supports large-capacity battery pack whole-pack testing customization

Industry 02 Automotive & Components

Automotive Electronics Plateau Environmental Adaptability Test

Simulating 3000~5500 meter high-altitude environments, 50kPa~101.3kPa plateau pressure combines with high/low temperature alternation for automotive ECUs, sensors and center consoles, verifying heat dissipation, insulation withstand voltage and housing sealing per ISO 16750.

Temperature-pressure synchronized or segmented coupling control

Solves temperature rise testing of heating components at low pressure

Provides full-vehicle walk-in plateau simulation chamber customization

Industry 03 Aerospace & Military

Avionics High-Altitude Flight Environment Simulation

For airborne radars, aviation instruments and parachute components, low temperature-low pressure coupling testing simulates altitudes up to 35,000 meters (0.5kPa) and -70℃, meeting GJB 150.2A and RTCA DO-160 to evaluate structural integrity under rapid pressure drops.

Extreme low pressure up to 0.5kPa (or 0.1kPa)

Supports rapid decompression (e.g. explosive decompression simulation)

High-reliability vacuum pump group with dynamic gas-replenishment balance

Industry 04 Electronics, Semiconductor & Communications

Electronic Component Airtightness & Insulation Test

Low pressure reduces air insulation strength, risking corona or arc ignition. Low-pressure energized testing for relays, high-voltage capacitors and base station modules also verifies deformation and airtightness failure of cavity plastics and die-cast housings under pressure difference.

Dedicated airtightness/insulation test terminals and lead holes

Anti-static inner liner and anti-EMI shielding design

Multi-layer custom load-bearing test racks for batch energization

Need more detailed industry testing technical materials?

Including UN38.3 interpretation for new energy batteries, automotive plateau adaptability, avionics low-temperature low-pressure testing, and standard specifications plus non-standard customization cases.

Get Industry-Specific Solution

Customer Cases

Proven by Strength
Quality Witnessed by Delivered Cases

A selection of delivered low pressure and high-altitude simulation cases across aerospace, new energy batteries, automotive electronics and semiconductors, showcasing real projects and testing capabilities.

View All Delivered Cases

UL Meihua Certification (Underwriters Laboratories)

UL Meihua Certification Co., Ltd. successfully ordered a high/low temperature cyclic damp heat test chamber from Guangzhou MingSheng Testing Equipment Co., Ltd. and passed on-site acceptance, providin

CCIC Southern Testing Co., Ltd.

CCIC Southern Testing Co., Ltd. successfully signed a contract with Guangzhou MingSheng Testing Equipment Co., Ltd. for a high/low temperature cyclic damp heat test chamber. The equipment has been ins

Centre Testing International Group Co., Ltd. (CTI)

The high/low temperature test chamber and rapid temperature change test chamber supplied by Guangzhou MingSheng Testing Equipment Co., Ltd. to Centre Testing International Group have been successfully

Harbin Pharmaceutical Group Co., Ltd.

The walk-in high/low temperature test room from Guangzhou MingSheng Testing Equipment Co., Ltd. was successfully delivered and put into service at Harbin Pharmaceutical Group, providing large-scale hi

Guangzhou Well Lead Medical Co., Ltd.

In its first cooperation with Guangzhou Well Lead Medical, Guangzhou MingSheng Testing Equipment Co., Ltd. successfully delivered and commissioned a high/low temperature cyclic damp heat test chamber

Shenzhen Snibe Biomedical Engineering Co., Ltd.

The walk-in high/low temperature test chamber and high/low temperature low pressure test chamber supplied by Guangzhou MingSheng Testing Equipment Co., Ltd. to Shenzhen Snibe Biomedical Engineering Co

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