DIAD

What DIAD does

DIAD (无锡市足球一世66814(中国)工业自动化设备有限公司, Wuxi City Sijin (China) Industrial Automation Equipment Co., Ltd.) is a privately held Chinese R&D, manufacturing, and service provider of electro-hydraulic control systems, founded in 2014 and headquartered in Wuxi, Jiangsu Province. The company designs and builds PLC-based multi-point synchronous control hydraulic systems, non-standard/custom hydraulic systems, deep-sea underwater hydraulic electronic products, and high-pressure hydraulic jacks (including ultra-thin 70MPa-rated single-acting units), serving construction companies, engineering firms, and government infrastructure departments. Its core technology platform supports up to 32 networked pump stations with variable-frequency control and closed-loop force/position synchronization, enabling precision simultaneous jacking, leveling, and horizontal relocation of large structures including bridges, elevated roads, metro systems, and multi-story buildings. The company is a National High-Tech Enterprise (since 2020), holds ISO 9001 certification, and has contributed editorial work to Shanghai's 'Urban Bridge Overall Jacking Construction Technology Standards.' Notable reference projects include the Nanjing Yangtze River Bridge, Kunshan Wusong River Bridge (27,000-ton main pier, 1.8m lift—the heaviest cable-stayed bridge jacking in China), Hangzhou Qiushi Road Elevated Bridge (7-span, 8.9m total lift), Ningxia Wuzhong Hotel (13-story, 20,000+ ton building relocated 80m), Tianjin West Railway Station (2.5m lift), and the Jiaolong manned submersible program.

The company monetizes through two streams: one-time equipment sales of electro-hydraulic control systems, hydraulic jacks, and customized solutions, plus professional engineering services covering on-site jacking operations, system installation and debugging, and technical training. Go-to-market is direct enterprise field sales targeting project managers and engineering procurement departments at construction firms and government infrastructure projects; pricing is custom and not publicly disclosed. Revenue is project-based and tied to large, infrequent infrastructure engagements, with all identified customers being government or state-connected enterprise buyers.

The product portfolio extends beyond civil infrastructure into deep-sea and ocean engineering applications, including hydraulic power units for the Jiaolong manned submersible and 200m-rated rescue bell systems, plus new 2025 product launches in underwater imaging (SDC 02 4K camera, 7000MSW) and lighting (SeaLED50 LED, 7000MSW, 5000+ lumens). The IP portfolio includes invention patents for a mechanical screw-type follow-up support mechanism (co-developed with construction units), ultra-high pressure balanced load device/valve, automatic self-locking hydraulic lifting cylinder, vibration cylinder with balanced pressure compensation, and an appearance design patent for a hydraulic station oil tank cover.

Name

DIAD

Legal name

无锡市足球一世66814（中国）工业自动化设备有限公司

Website

https://diad-srl.com

Company type

Private

Founded year

2014

Operating status

Operating

Short description

DIAD is a privately held Wuxi-based Chinese manufacturer of PLC-based electro-hydraulic synchronous control systems, hydraulic jacks, and deep-sea underwater electronic products, serving government infrastructure projects, construction firms, and ocean-engineering programs with on-site jacking and relocation services.

Ownership category

akta.pro rank

Product category

Industrial Hydraulic Equipment and Automation

NAICS

Fluid Power Pump and Motor Manufacturing (333996), Fluid Power Cylinder and Actuator Manufacturing (333995)

SIC

Construction Machinery & Equip (3531), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Hydraulic Power Units & Systems (HPUs, Manifolds, Integrated Circuits) (IMAHAGAB)

akta.pro secondary industries

Proportional & Servo Hydraulics (Electrohydraulic Valves, Servo Systems) (IMAHAGAF), Hydraulic Components (Pumps, Motors, Cylinders) (IMAHAGAA), Sensors & Feedback Devices (Pressure, Flow, Position, Encoders, Transducers) (IMAHAGAK)

Keywords

• Electro-hydraulic control systems
• PLC synchronous control
• Hydraulic jacks
• Bridge lifting equipment
• Underwater hydraulic electronics

Headquarters

HQ city

Wuxi

HQ country

China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Equipment Sales (液压系统及设备销售): Sale of electro-hydraulic control systems, PLC synchronous control equipment, hydraulic jacks, underwater hydraulic products, and customized hydraulic solutions. Equipment is sold directly to construction companies, engineering firms, and government infrastructure projects for project implementation.
2. Engineering Services and On-site Support (现场顶升服务): On-site technical services including jacking operations, system debugging, and project implementation support. Provides complete engineering solutions from initial design through implementation and training.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

DIAD designs, manufactures, and services PLC-based electro-hydraulic synchronous control systems, hydraulic jacks, and deep-sea underwater hydraulic electronic products. The PLC Multi-Point Synchronous Control Hydraulic System is the flagship platform for large-scale bridge and building jacking, leveling, and relocation, complemented by non-standard hydraulic systems and deep-sea subsea electronics (cameras, lights, rescue-bell hydraulic units). The company delivers complete engineering solutions from design through on-site implementation and training.

Product overview

DIAD (无锡市足球一世66814（中国）工业自动化设备有限公司) is an R&D, manufacturing, and service provider of electro-hydraulic control systems, recognized as a national high-tech enterprise since 2020. The company operates a platform-plus-modules model anchored by its core PLC Multi-Point Synchronous Control Hydraulic System, complemented by Non-Standard Hydraulic Systems, Deep-Sea Underwater Hydraulic Electronic Products, and Hydraulic Jacks. The PLC Multi-Point Synchronous Control Hydraulic System serves as the primary platform for synchronized lifting and translation of large structures (bridges, buildings), while the Deep-Sea Underwater product line — including the SDC 02 underwater camera, SeaLED50 underwater light, 200m rescue bell hydraulic unit, and Jiaolong hydraulic unit — addresses ocean engineering and submersible applications. Supporting products include the SM series hydraulic jack (70MPa-rated single-acting cylinders), PLC Synchronous Control System Cabinet and Cylinder, Automatic Constant-Pressure Loading Hydraulic System, and Electro-Hydraulic Servo System. All products are supported by on-site engineering services covering project design, manufacturing, and operational guidance.

Differentiator

Problem solved

Functional benefit

Products and services

• PLC Multi-Point Synchronous Control Hydraulic System (PLC多点同步控制液压系统) Industrial hydraulic system using PLC-based multi-point synchronous control for bridge and building lifting, leveling, and structural correction operations, supporting force-closed-loop and position-closed-loop synchronized control across multiple networked pump stations. Sold to construction companies, engineering firms, and government infrastructure departments.
• Non-Standard Hydraulic System (非标液压系统) Custom-built hydraulic systems designed for specific industrial applications, including automated constant-pressure loading hydraulic systems for specialized engineering requirements. Targeted at industrial customers needing tailored hydraulic solutions.
• Deep-Sea Underwater Hydraulic Electronic Products (深海水下液压电子产品) Subsea hydraulic power units, electronic monitoring equipment, and underwater cameras designed for deep-sea applications including the Jiaolong manned submersible program, 200m-rated rescue bell systems, and ROV lighting. Sold to ocean engineering and submersible program operators.
• Hydraulic Jack (液压千斤顶) High-pressure hydraulic cylinders and jacks including ultra-thin single-acting spring-return models rated up to 70MPa, used in bridge maintenance, deep foundation pit support, and other space-constrained lifting operations. Sold to construction and infrastructure customers.
• SDC 02 Underwater HD Camera (SDC 02水下高清摄像机) Compact multi-functional underwater HD camera rated to 7000MSW depth, supporting up to 4K resolution at 30fps using a 1/2.3" sensor, ONVIF protocol over 10M/100M Ethernet, with customizable housing in aluminum alloy, 316L stainless steel, or titanium alloy. Targeted at ROV operators and deep-sea submersible programs.
• SeaLED50 Underwater LED Light (SeaLED50水下照明灯) Rugust underwater DC LED light for ROV and manned submersible deployment, rated to 7000MSW depth, producing 5000+ lumens with a wide 100° beam, available in aluminum alloy or titanium alloy housing. Targeted at deep-sea vehicle builders.
• 200m Rescue Bell Underwater Hydraulic Power Unit and Valve Box (200米救生钟水下液压源和液压阀箱) Hydraulic power supply and valve box system designed for 200-meter-depth-rated rescue bell operations, providing hydraulic power and control for subsea rescue equipment. Supplied to ocean rescue and subsea engineering buyers.
• Jiaolong Hydraulic Unit (蛟龙号液压箱) Hydraulic power unit supplied for the Jiaolong (Dragon Roamer) deep-sea manned submersible program, providing hydraulic power for submersible operations at extreme depths. Sold to manned submersible program operators.
• Automatic Constant-Pressure Loading Hydraulic System (自动加载恒压液压系统) Custom non-standard hydraulic system providing automatic constant-pressure loading for specialized industrial testing and load applications. Targeted at industrial customers needing controlled-pressure load testing.
• SM Series Single-Acting Hydraulic Jack (SM系列单作用液压千斤顶) Single-acting spring-return hydraulic jack with high-strength cylinder and piston using low-friction high-strength seals. Max working pressure 70MPa, QPQ surface treatment for enhanced hardness and corrosion resistance. Features ultra-low closed height and high stroke for bridge maintenance and space-constrained lifting applications.
• On-site Jacking Engineering Services (现场顶升服务) On-site technical services including synchronous jacking operations, system debugging, and project implementation support for bridge and building projects. Combined with equipment sales, DIAD delivers complete engineering solutions from initial design through implementation and training to construction companies, engineering firms, and government infrastructure departments.

Quantifiable outcome

• Nanjing Yangtze River Bridge - completed full hydraulic synchronous jacking control system and on-site jacking service
• +4 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• Construction Units (施工单位)coreStrategic or Co-development PartnerJoint development of invention patent 'Mechanical Screw-type Follow-up Support Mechanism and Method' with construction units. Cooperation on bridge jacking projects including Kunshan Wusong River Bridge, developing specialized equipment solutions for challenging engineering requirements.
• 上海市 (Shanghai Municipal Government)coreStrategic or Co-development PartnerDIAD technical personnel served as editorial board members for Shanghai 'Urban Bridge Overall Jacking Construction Technology Standards' (上海市《城市桥梁整体顶升施工技术规程》编委成员), contributing to national technical standards development.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• XCMG Group: Chinese construction equipment manufacturer with extensive hydraulic crane, excavator, and pile-driving product lines. Broad incumbent that competes in similar infrastructure and bridge construction channels.
• Sany Heavy Industry: China-based construction machinery giant with broad portofolio of hydraulic heavy equipment, cranes, and piling rigs. As broad incumbent in hydraulics, addresses overlapping end-users in bridge/infrastructure construction.
• Jiangsu Hengli Hydraulic: Large Chinese hydraulic component manufacturer producing pumps, motors, valves, and cylinders for industrial and mobile machinery. Broad incumbent overlap with DIAD's component lines (cylinders, HPUs, valves).

Emerging players

• Forum Energy Technologies: Supplier of subsea robotics, ROV tooling, and offshore hydraulic equipment. Tangentially comparable to DIAD's deep-sea hydraulic power units and submersible-component business.
• Teledyne Marine: Provider of underwater imaging, lighting, and sensor systems for ROVs, AUVs, and subsea infrastructure. Comparable to DIAD's newly launched SDC 02 underwater HD camera and SeaLED50 light product lines.

Direct peers

• Freyssinet (Vinci Construction): Structural engineering specialist in jacking, post-tensioning, and building relocation. Comparable to DIAD across bridge bearing replacement, structural reinforcement, and large-building translation work.
• Enerpac: Global leader in high-force hydraulic tools and synchronous jacking systems used for bridge bearing replacement, structural lifts, and heavy-load positioning. Direct competitor to DIAD's PLC-controlled multi-point synchronous lifting platform.
• VSL International (Bouygues Construction): Specialist in heavy lifting, post-tensioning, and bridge jacking systems with deep installed base in Asia. Directly comparable as a heavy-lift and synchronous-jacking solution provider for bridges and large structures.
• Huisman Equipment: Dutch manufacturer of heavy lifting equipment, including cranes and offshore/subsea handling systems. Comparable to DIAD in engineered heavy-lift systems and subsea hydraulic component design for offshore and ocean engineering applications.
• Mammoet: Heavy lifting and transport specialist operating in construction, energy, and offshore markets. Comparable to DIAD in heavy-load synchronous operations and engineered transport of large structures.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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 DIAD