Jiuzhou Yunjian

What Jiuzhou Yunjian does

Jiuzhou Yunjian Space Technology Co., Ltd. is a privately held Chinese aerospace company founded in 2017 and headquartered in Beijing, with a 10,000-square-meter intelligent manufacturing and final assembly base in Bengbu City, Anhui Province. The company designs, develops, assembles, and tests liquid oxygen-methane rocket engines and supporting cryogenic hardware for commercial launch-vehicle manufacturers and state-owned aerospace institutes in China. Its core product line comprises the Lingyun 10-ton-class engine and the Longyun 70-ton-class engine — both featuring multi-ignition capability, deep thrust modulation, and reusability ratings — alongside cryogenic centrifugal pumps, power turbines, and an ultra-low-temperature/high-pressure valve series.

The company monetizes through direct sales of custom-configured engines to enterprise customers (one-time, multi-year procurement contracts quoted on thrust class and configuration), supplemented by professional testing services at its integrated Liquid Rocket Engine Test Center, which includes dual hot-fire stands rated below 100 tons for both LOX/LNG and LOX/kerosene engines. Go-to-market is enterprise field sales to a base of more than ten clients including multiple commercial rocket companies and state aerospace institutes, with named partners such as Jianyuan Technology for joint rocket development. Technical credibility is anchored by the first domestically developed multi-ignition LOX-methane engines in China, two national-first flight tests (10km altitude recovery in June 2024 and sea-state splashdown recovery in May 2025), and certifications including National High-Tech Enterprise, ISO quality management, and the Weapons & Equipment Quality Management System certification.

Name

Jiuzhou Yunjian

Legal name

Jiuzhou Yunjian Space Technology Co., Ltd.

Website

https://en.jzyjspace.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Jiuzhou Yunjian is a privately held Chinese aerospace company developing reusable liquid oxygen-methane rocket engines (Lingyun 10-ton and Longyun 70-ton classes), cryogenic pumps, valves, and propulsion testing services for commercial rocket manufacturers and state aerospace institutes.

Ownership category

akta.pro rank

Product category

Aerospace Propulsion Systems

NAICS

Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing (336415), Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Pump and Compressor Manufacturing (33391)

SIC

Engines & Turbines (3510), Guided Missiles & Space Vehicles & Parts (3760), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Rocket Engines (Liquid) (IMABADAE)

akta.pro secondary industries

Engine Control, Fuel & Ignition Systems (FADEC/Accessories) (IMABADAK), Engine Modules & Hot-Section Components (Compressors/Turbines/Combustors) (IMABADAJ), Centrifugal Pumps (IMAHANAA)

Keywords

• Liquid rocket engines
• Liquid oxygen-methane propulsion
• Reusable launch propulsion
• Cryogenic pump and valve products
• Rocket engine testing services

Headquarters

HQ city

Beijing

HQ country

China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Supply Chain

Revenue model

1. Liquid Rocket Engine Sales: Direct sales of Lingyun (10-ton) and Longyun (70-ton) liquid oxygen-methane engines to commercial rocket companies and aerospace manufacturers. Engines are delivered with full technical documentation and support for rocket integration.
2. Testing and Evaluation Services: Comprehensive testing services at the Jiuzhou Yunjian Liquid Rocket Engine Test Center including complete engine hot testing, half-system tests, turbopump testing, valve low-temperature testing, and component fluid-gas flow testing. Services available to domestic and international clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Jiuzhou Yunjian designs, manufactures, and sells liquid oxygen-methane rocket engines (Lingyun 10-ton class and Longyun 70-ton class) for commercial launch vehicles and reusable rockets. The company also offers cryogenic centrifugal pumps, ultra-low temperature and high-pressure valves, multi-domain simulation technology, and comprehensive engine testing services through its integrated Liquid Rocket Engine Test Center. Customers are primarily commercial rocket manufacturers and state-owned aerospace institutes in China.

Product overview

Jiuzhou Yunjian offers a portfolio of liquid oxygen-methane rocket engines and related propulsion products for the commercial aerospace market. The core product line consists of two engine families: the Lingyun Engine (10-ton class) designed for commercial space and upper-stage applications, and the Longyun Engine (70-ton class) serving as primary first-stage propulsion for medium-to-large liquid launch vehicles. Both engines feature reusability, multiple ignition capability, and deep thrust modulation. Supporting the engine products are specialized components including ultra-low temperature and high-pressure valve series (cryogenic pneumatic control valves, solenoid valves, pressure-reducing valves, check valves, and electrically actuated regulating valves) and rotating machinery (cryogenic centrifugal pumps and power turbines). The company also provides simulation technology services and comprehensive testing and evaluation services through its integrated liquid rocket engine test center.

Differentiator

Problem solved

Functional benefit

Products and services

• Lingyun Engine 10-ton-class liquid oxygen-methane engine for the commercial space market; China's first domestically developed liquid engine with multiple ignition capabilities, deep thrust modulation (20%-105%), and support for rocket recovery and reuse. Ground thrust 100 kN, vacuum thrust 116.5 kN. Suitable for small-scale liquid rockets and upper-stage applications.
• Longyun Engine 70-ton liquid oxygen-methane engine; first multi-start, reusable, high-thrust liquid rocket engine from Jiuzhou Yunjian. Sea-level thrust 70 tons, vacuum thrust 80 tons; thrust modulation range 32%-106%; multiple restart capability (≥3 times per mission); 50+ reuses. Configurable in parallel setups of up to 9 engines for heavy-lift vehicles of 3.35m-4.2m diameter.
• Ultra-Low Temperature and High-Pressure Valve Product Series Five categories of cryogenic and high-pressure valves including cryogenic pneumatic control valves, solenoid valves, pressure-reducing valves, check valves, and electrically actuated regulating valves. Operating pressures 0-23 MPa, response time ≤200ms. Designed for high-pressure, cryogenic, and ultra-cryogenic civilian applications such as petrochemical, LNG, and aerospace.
• Rotating Machinery (Centrifugal Pumps and Power Turbines) Cryogenic centrifugal pumps (liquid oxygen pump at 92K, liquid methane pump at 110K) with flow rates 3-200 kg, pressure rise 1-18 MPa, and rotational speeds 8,000-30,000 rpm. Power turbines include a gas-driven two-stage turbine (650K, 1.1 MW, 15 kg) and an air-driven radial-flow turbine (150 kW, 10 kg). Supports Lingyun engines in completing full-scale thermal tests.
• Testing and Evaluation Services Comprehensive testing services at the Jiuzhou Yunjian Liquid Rocket Engine Test Center including complete engine hot testing, half-system engine tests, high-pressure combustion device tests, turbopump medium tests, low-temperature valve testing, and component fluid-gas flow tests. Services available to domestic and international clients through dual hot-fire test stands for engines rated below 100 tons.
• Simulation Technology Services Multi-domain simulation services including transient simulation model libraries, control system R&D and testing simulation, 3D visualization and system simulation, one-dimensional design simulation, and structural strength simulation using finite element methods. Applied internally to Lingyun engine development and offered as external customer projects.

Quantifiable outcome

• 10km flight-recovery test completed successfully on June 23, 2024 - China's first domestic 10km-level flight-recovery test with multi-unit parallel operation
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Jianyuan TechnologycoreStrategic or Co-development Partner · 4 August 2025Joint development of Yuanxingzhe No. 1 verification rocket with LY70005 sea-splash recovery engine. Companies jointly created cost-effective reusable technology solution featuring stainless steel tanks paired with liquid oxygen-methane propellants. Successful sea-state flight recovery test completed May 29, 2025.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• LandSpace: Beijing-based developer of the Zhuque series of methalox rockets, including TQ-12 and TQ-15 engines. Most direct competitor as a Chinese private methalox propulsion supplier, with Zhuque-2 having achieved the world's first methalox orbital launch.
• iSpace (Interstellar Glory): Chinese commercial launch company developing the Hyperbola series methalox engines for the Hyperbola-2 and Hyperbola-3 reusable rockets. Directly competes with Jiuzhou Yunjian for private Chinese rocket customer engine contracts.
• Galactic Energy: Developer of the Ceres-1 solid rocket and the Pallas-1 methalox vehicle, with proprietary methalox engine development. Competes for the same Chinese commercial launch customers and adjacent engine supply opportunities.
• Space Pioneer (Tianbing Technology): Chinese launch company developing Tianlong (天龙) series methalox engines for the Tianlong-3 medium-lift rocket. Has raised significant capital and operates its own engine and launch vehicle development, making it a direct competitor in propulsion.
• Deep Blue Aerospace: Chinese commercial launch startup focused on reusable methalox rockets, developing the Nebula-1 engine and conducting VTVL recovery tests. Direct peer in methalox reusable propulsion and recovery engineering.

Emerging players

• Orienspace (Gravity Space): Chinese launch startup developing the Gravity-1 (solid) and Gravity-2 (methalox) rockets with its own propulsion. More emerging than Jiuzhou Yunjian, but operates in adjacent reusable methalox propulsion space.
• CAS Space (Zhongke Aerospace): CAS-backed Chinese launch company with solid and hybrid propulsion focus, developing reusable launcher capabilities. Overlaps indirectly with Jiuzhou Yunjian as a potential customer and Chinese reusable launch competitor.

Broad incumbents

• SpaceX (Raptor): Developer of the Raptor methalox full-flow staged combustion engine powering Starship. Sets the global benchmark for reusable methalox propulsion technology and competitive benchmark for any methalox engine developer.
• Blue Origin (BE-4): Develops the BE-4 methalox engine used on Vulcan and New Glenn, with deep-thrust-modulation capability comparable to Longyun. Global benchmark and competitor for high-thrust reusable methalox engine technology.
• Aerojet Rocketdyne (L3Harris): Legacy US rocket engine manufacturer (now part of L3Harris) producing a portfolio of liquid engines including RL10, RS-25, and AR1. Represents the traditional incumbent model of rocket engine supply against which Jiuzhou Yunjian competes on cost and reusability.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds4 records

Investors9 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Jiuzhou Yunjian