What is the lead time for production?

The average lead time is one month. During peak seasons, it may take 1-3 months.

Does the machine support automatic operation?

Yes, it features a microcomputer controller with automatic restart capabilities to maintain constant pressure and alarm shutdowns for safety.

What certifications does the product have?

The product has CE approval and meets strict quality standards required for the Japanese market.

20L Liquid Nitrogen Machine Liquid Nitrogen Generator

Name: 20L Liquid Nitrogen Machine Liquid Nitrogen Generator
Brand: LDH GAS SYSTEMS COMPANY LIMITED
SKU: 1998403305

Beijing, ChinaLDH GAS SYSTEMS COMPANY LIMITED

US$2,000.00-100,000.00

1 Set

Product profile

Customization

Available

After-sales Service

24hours

Warranty

1year

Model NO.

LPLN-20

Lubrication Style

Oil-free

Cooling System

Air Cooling

Cylinder Arrangement

Balanced Opposed Arrangement

Cylinder Position

Angular

Structure Type

Closed Type

Compress Level

Double-Stage

Refrigerant Type

Freon

Pressure

150-200barg

Volum

Small

Temperature

-196

Theory

Low Temperature Liquefied

Use

Laboratory Cryopreservation

Transport Package

Wooden Box

Specification

1900*1800*2100

Trademark

LDH

Origin

Beijing China

HS Code

841960

Production Capacity

500

Key features

100% Oil-Free Design: Stainless steel cylinder with self-lubricating parts ensures zero oil contamination and high gas purity.

High Energy Efficiency: Gas-driven booster saves up to 70% energy by maintaining pressure without consuming additional power.

Automatic Pressure Control: Microcomputer controller enables automatic restart and constant pressure maintenance for leak compensation.

Wide Pressure Range: Adjustable output pressure from 0.2-3 bar to 10-15 bar, or up to 30 MPa for bottle filling.

Safe Gas-Driven Operation: No arc or spark generation, making it safe for use in dangerous occasions and explosive environments.

Long Piston Ring Life: Piston rings last 4000 hours, with final stage rings lasting 1500-2000 hours for low maintenance.

Flexible Customization: Supports OEM/ODM, full customization, and minor adjustments based on customer samples or designs.

CE Approved Quality: Meets strict Japanese market quality standards and holds CE approval for reliable performance.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceManagement CertificationQuality Assurance

LDH GAS SYSTEMS COMPANY LIMITED

Beijing, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤1.44h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company whose scope includes gas, gas separation and purification equipment, machinery, installation, technical services, and import/export activities. It reports more than ten years of gas design and R&D experience, broad customization and ODM/OEM capabilities, available SDK support, and documented procedures for supplier service assessment, corrective actions, and customer complaints. Production information states annual outputs of 300 nitrogen generator sets, 350 oxygen generator sets, and 150 liquid nitrogen generator sets, with finished-product inspection instructions followed uniformly. ISO 9001:2015 certification is reported. Financial records are indicated for 2021–2023, but no financial results are provided. Overseas support appears limited because no overseas showroom, agent, branch, or offline trade-show participation is reported. No specific customer cases are disclosed.

CertificationsThe supplier reports holding an ISO 9001:2015 certificate and also reports uniformly followed instructions for finished-product inspection. The available evidence supports quality-management certification, although no other certifications are identified.

After-Sales capabilityThe supplier reports clear procedures and followed records for handling customer complaints, corrective and preventive actions, and service-capability assessment. It also states that its technical team provides pre-sale, sales, and after-sales technical support, including installation guidance and training; however, it reports no overseas agents, branches, showroom, or overseas-service countries.

R&D capabilityThe supplier reports more than ten years of gas design and R&D experience, a professional technical team, new products during the past year, ODM services, OEM services for well-known brands, and an available SDK. These statements provide explicit evidence of established product-development and technical-support capability.

Production capacityReported annual production output is 300 nitrogen generator sets, 350 oxygen generator sets, and 150 liquid nitrogen generator sets. The supplier also reports a one-month off-peak lead time, finished-product inspection instructions that are uniformly followed, and 11–20 quality-control staff, supporting a documented production and quality-control operation.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM availability, providing direct evidence of broad customization and original-design support.

Product Q&A

Q:Is the compressor oil-free?

Yes, the compressor is 100% oil-free. It uses a stainless steel cylinder and self-lubricating guide and piston rings to ensure no oil contamination.

Q:What is the warranty period?

We provide a 1-year warranty for this liquid nitrogen generator and associated equipment.

Q:Can the output pressure be customized?

Yes, the pressure is customizable. The working pressure range is large, and different superchargers can be used to achieve pressures from 0.2 bar up to 90 MPa.

Q:What is the minimum order quantity?

The minimum order quantity is 1 unit.

Q:What are the available cooling methods?

The system supports both air cooling and water cooling options, allowing customers to choose based on their local conditions.