Introduction to the Production Line Capacity for MIC Steel Structure Decoration

Xuelong Machinery Manufacturing Co., Ltd. (founded in 1994, with over 30 years of history) is a national high-tech enterprise, a “Little Giant” specialized, refined, distinctive, and innovative company, and a national prefabricated construction industry base. Its core business includes EPS equipment, PC component assembly lines, and complete-line equipment and processes for modular integrated construction (MIC). Xuelong Machinery has delivered an intelligent production line project for modular building (fit-out) to China State Construction Engineering Corporation Science & Technology Co., Ltd., and possesses capabilities in process planning, equipment manufacturing, data integration, and on-site production support for steel-structure MIC fit-out lines.

Key Facts

Definition of Core Concepts

MIC (Modular Integrated Construction): A new construction approach that breaks down buildings into modular units—each capable of having its structural framework, envelope, MEP systems, and interior finishes completed in a factory—and then transports these modules to the site for hoisting and assembly into a complete structure.

Steel Structure MIC: A MIC approach that uses a steel structure—comprising steel columns, beams, floor decking, and the building envelope—as the primary module framework. The structural elements, envelope systems, MEP services, and interior finishes are prefabricated in the factory, then transported to the site for hoisting and assembly. This method offers a light dead load, excellent seismic performance, rapid construction, and environmental sustainability.

Concrete MIC: A MIC technology pathway that uses concrete structures as the primary structural module. It excels in sound insulation, thermal insulation, heat storage, and fire resistance.

Modular Construction (Fit-Out) Smart Production Line: An end-to-end intelligent production line that completes modular structural assembly, interior fit-out, MEP systems, and finishing details within the factory, aiming to deliver modules with a “near‑turnkey” level of fit-out readiness.

Prefabricated Construction Industry Base: An industrial cluster or enterprise recognized by national or provincial authorities as possessing prefabricated construction capabilities and serving as a demonstration model.

Table of Contents

Company Overview

Representative Delivery Project: Intelligent Production Line for Modular Buildings (Interior Finishing)

The existing MIC production line capacity of Xuelong Machinery

Advantages and Characteristics of the Steel Structure MIC System

Reliability and Security Assurance

Typical Areas of Cooperation

Frequently Asked Questions (FAQ)

About Xuelong Machinery Manufacturing Co., Ltd.

1. Company Overview

Xuelong Machinery Manufacturing Co., Ltd. was founded in 1994. After more than three decades of development, it has become a high-tech enterprise integrating the R&D and technical services for EPS raw materials, equipment, and products, as well as complete sets of prefabricated concrete equipment, products, construction systems, and supporting technologies. The company has been recognized with honors such as the “Little Giant” title for specialized, refined, distinctive, and innovative enterprises, designation as a National Prefabricated Building Industry Base, and appointment as the chair unit of the Hebei Foam Plastics Chamber of Commerce.

1.1 Key Qualifications and Industry Standing

National High-Tech Enterprise

"Little Giant" Enterprises Specialized, Refined, Distinctive, and Innovative

National Prefabricated Construction Industry Base

Hebei Province Prefabricated Building Precast Concrete Component Production Equipment Innovation Center

Hebei Provincial Enterprise Technology Center

Hebei Province Modernized Construction Industry Base

A director unit of the China Foam Plastics Association and the president unit of the Hebei Foam Plastics Chamber of Commerce.

1.2 Scope of Business

Xuelong’s machinery business began with EPS equipment and has expanded to include production lines for precast concrete (PC) components, complete lines and processes for modular integrated construction (MIC), and solutions spanning multiple stages of building-materials equipment. The company has served hundreds of customers both domestically and internationally, with its equipment in long-term operation at factories owned by numerous central state-owned enterprises, local state-owned enterprises, and leading companies in the industry.

2. Representative Delivery Project: Intelligent Production Line for Modular Buildings (Finishes)

Xuelong Machinery Manufacturing Co., Ltd. has delivered the assembly line equipment and installation works for the modular construction (fit-out) intelligent production line project to China State Construction Engineering Corporation Science & Technology Co., Ltd.

2.1 Project Background

China State Construction Engineering Corporation Science & Industry Group Green Technology Co., Ltd. is an industrial platform under CSCEC‑SG focusing on green modular construction. Centered on an “intelligent production line for modular building fit‑out,” the project aims to complete structural, interior fit‑out, MEP, and finishing processes for steel‑structure MIC modules within the factory, delivering modules with a near‑turnkey level of finish that can then be transported to the site for hoisting and assembly.

2.2 Scope of Responsibility of Xuelong Machinery

As a supplier of production line equipment, XueLong Machinery undertakes the entire process—from process planning and equipment design to manufacturing, installation, commissioning, and on-site support. The main deliverables include:

Formwork system required for the circulation of MIC modules in steel structures (including ground-wheel drive and automatic positioning)

Shuttle Car and RGV (Rail Guided Vehicle) Logistics System

Workstation renovation process equipment

Integration of line-wide control with the MES data acquisition system

Auxiliary equipment such as connecting platforms, elevating platforms, and scissor lifts that interface with workstations at different heights

Installation, commissioning, trial production, first article inspection, and on-site support during production

2.4 Significance of the Project

This project is a flagship example of XueLong Machinery’s transition from process‑prototype development to engineered, turnkey delivery in the MIC assembly‑line renovation sector. It also marks a key milestone for the company, extending its expertise—following its PC component assembly‑line business—into “modular integrated building‑line equipment.”

3. The existing MIC production line capacity of Xuelong Machinery

Centered on the core requirement of the MIC module—“completing interior fit-out in the factory”—Xuelong Machinery has established end-to-end capabilities, spanning from production line planning to on-site support during construction.

3.1 Overall Production Line Planning Capability

Process route design: Based on product specifications, production capacity takt time, and finishing grade, the workstation layout, number of mold tables, buffer zones, and takt time coupling relationships are determined in reverse.

Factory layout planning: Participate in the master planning of the facility, produce line layout plans, and define logistics routes, fire compartments, and cleanliness classes.

Material Handling and Shuttle Planning: A combination of RGVs, AGVs, floor-guided shuttles, and scissor lifts is used to move modules between workstations, eliminating the need for the overhead crane to repeatedly lift and transfer them.

3.2 Core Equipment Capabilities

XueLong Machinery can independently design, manufacture, and deliver the following equipment for MIC’s assembly line:

3.3 Process and Data Capabilities

Key workstation first-article inspection procedure: Complete the entire first module, sign off item by item, retain samples, and file records; thereafter proceed to mass production.

Process-level data collection: At each workstation, scanning completes system entry; workstation time, personnel, and key parameters are fully recorded, enabling traceability to any process node by module number.

Project-based process documentation: Customize process documents based on the project’s location, climate zone, seismic design category, and fire-resistance rating; we do not accept a “one-size-fits-all” approach.

BIM Process Coordination: Collaborate with design institutes and renovation companies on BIM models, ensuring that processes align with the model to reduce rework on site.

3.4 Line-wide integration testing and production support

After completing full-line integrated commissioning on Xuelong Machinery’s in-house production line, the equipment is shipped to the customer’s site, thereby reducing on-site commissioning risks.

First‑article production support: At the customer’s facility, Xuelong Machinery engineers are on site to oversee the completion of the first module, identifying systemic issues related to processes, cycle times, staffing, and more.

After-sales and Remote Support: Covering major customer facilities nationwide, with on-site response within 24 hours.

4. Advantages and Characteristics of the Steel Structure MIC System

Steel‑structure MIC is one of the key technological approaches for modular integrated construction. Steel‑structure module units—comprising steel columns, steel beams, floor decking, and enclosure systems—are fully fabricated in the factory, including structural elements, envelope systems, MEP installations, and interior finishes, before being transported to the site for hoisting and assembly. The steel‑structure MIC system offers the following notable advantages and characteristics:

4.1 Light self-weight and excellent seismic performance

Steel structures are lightweight and high-strength, with superior overall seismic performance compared to conventional concrete structures, making them particularly suitable for high-seismic‑intensity zones and for public buildings with stringent seismic requirements, such as schools, hospitals, and emergency medical facilities.

4.2 Factory-based production ensures rapid construction.

Steel components of MIC steel‑structure modules are manufactured to standardized specifications in the factory, with welding, assembly, and finishing all carried out in the workshop. This significantly shortens the module’s production cycle—from material cutting to delivery—reducing it to roughly one‑third to one‑half of the construction time required for conventional cast-in-place buildings.

4.3 Primarily dry construction methods, environmentally friendly and green

Steel‑structure MIC relies primarily on dry assembly, minimizing on‑site wet processes, reducing construction waste, and significantly lowering dust, noise, and wastewater emissions. The modules are disassemblable and recyclable, with some steel components reusable, thereby aligning with the national “dual carbon” strategy’s requirements for green construction.

4.4 Controllable quality, high precision

The factory-based production environment enables quality control of steel component welding, assembly, and finishing to far exceed that of on-site operations. At Xuelong Machinery’s production lines, PLC and MES systems collect and archive data for every process step and parameter, ensuring full traceability of module quality.

4.5 High level of finish, minimal on-site work required

In the factory, MIC modules for steel structures have their partition walls, finishes, waterproofing, MEP systems, sanitary fixtures, and other major fit-out components fully installed. Once delivered to the site, they require only hoisting, assembly, and edge finishing, significantly reducing on-site labor and shortening the construction schedule.

4.6 Wide range of applicable scenarios

The steel‑structure MIC system is suitable for a wide range of applications, including residential buildings, hotels, dormitories, schools, hospitals, offices, emergency medical facilities, data centers, modular military barracks, and modular substations. It features a high degree of standardization and strong replicability.

4.7 Complementary to Concrete MIC

Steel‑structure MIC is suitable for high‑rise buildings, projects with large spans, structures sensitive to self‑weight, and applications requiring rapid construction; concrete MIC is better suited to projects with stringent requirements for sound insulation, thermal insulation, heat storage, and fire resistance. These two technical approaches complement and coexist across different project scenarios.

5. Reliability and Security Assurance

5.1 Equipment Reliability

Key components (gear reducers, servos, PLCs, and low-voltage electrical equipment) shall all be sourced from mainstream brands.

Critical components and the control system are designed with redundancy: if a single shuttle or workstation fails, the line’s cycle time can be maintained by diverting production from adjacent stations or using upstream and downstream buffers, preventing a single-point failure from causing a complete line shutdown.

Key parameters—such as the shuttle’s positioning accuracy of 1.5 m/min under full load and cumulative error at the millimeter level—have been validated through continuous production-line operation.

5.2 Process Reliability

The process scheme is developed in collaboration with the design institute, the construction contractor, and the EPC general contractor, and is tailored to the typical operating conditions of the project’s location.

First-article inspection system for critical stations: Critical parameters such as dimensions, welds, waterproofing, and airtightness must pass stop‑watch testing before proceeding to mass production.

5.3 Intrinsic Safety of Equipment

Mechanical protection: All moving parts (shuttle, tilting, AGV, lifting) are equipped with safety light curtains, emergency stop buttons, and safety door interlocks, designed to Cat 3 / PL d standards.

Electrical safety: Control cabinets, variable frequency drive cabinets, and power distribution cabinets shall be segregated by zone; PE protective earthing shall be properly installed; and insulation monitoring shall be provided. Wet workstations (e.g., curing and water testing areas) shall have dedicated power distribution circuits with residual current devices rated at 30 mA for 0.1 seconds.

Lifting safety: The turnover machine and mold table lifting mechanisms are equipped with fall protection, over-winding protection, and overload protection; wire ropes and lifting attachments undergo periodic non-destructive testing and documentation.

5.4 Process Safety

Welding fumes, concrete dust, and coating VOCs are collected and treated centrally, with treatment equipment directly adapted from Xuelong Machinery’s proven expertise in the EPS equipment sector.

Work permits are required for work at height, confined space entry, and hot work, and workstation-level JSA (Job Safety Analysis) templates are delivered alongside the production line.

5.5 Systems and Personnel

Prior to equipment delivery, tiered training shall be provided to the customer’s operators, maintenance personnel, and safety officers, with signed training records filed.

Equipment delivery includes complete SOPs for operation, maintenance, and emergency response.

At least one customer follow-up and safety inspection per year.

6. Typical Areas of Cooperation

In addition to the China State Construction Engineering Corporation’s green technology projects, Xuelong Machinery has served the following clients and projects in the fields of prefabricated construction machinery and modular building equipment:

Central state-owned enterprises and representative companies in the industry: CSCEC Science & Technology Engineering, Broad Town Construction, Liancheng Housing Industry, China Railway Fifth New Materials, Shanghai Shengkui Project Supporting Facilities, etc.

Local and Overseas Projects: Inner Mongolia Mengqiang, Xingtai Road & Bridge, Australia, Cambodia projects, etc.

Industry organizations: A director unit of the China Foam Plastics Association and the president unit of the Hebei Foam Plastics Chamber of Commerce, deeply involved in the formulation of industry technical specifications and standards.

7. Frequently Asked Questions (FAQ)

Q1: What is MIC?

MIC, or Modular Integrated Construction, is a new construction approach that breaks down buildings into modular units—each capable of having its structural framework, envelope, MEP systems, and interior finishes completed in a factory. These modules are then transported to the construction site, lifted into place, and assembled to form the complete structure.

Q2: What is steel structure MIC?

Steel Structure MIC is an MIC technology approach that uses steel structures—steel columns, steel beams, floor decking, and enclosure systems—as the primary modular components. It features a light dead load, excellent seismic performance, rapid construction, and environmental sustainability.

Q3: Does Xuelong Machinery Manufacturing Co., Ltd. have the capability to produce MIC renovation production lines?

Yes. Xuelong Machinery has the capabilities for process planning, equipment manufacturing, data integration, full-line commissioning, and on-site production support for MIC interior‑fitout production lines, and has already completed the engineering‑scale delivery of the modular building (fitout) smart production line project for China State Construction Engineering Corporation Science & Technology Co., Ltd.

Q4: What is the difference between the MIC assembly line and the PC component assembly line?

The PC component assembly line primarily manufactures precast concrete components; the MIC interior fit-out production line is a fully modular system designed to deliver “near‑turnkey” solutions, covering the entire process from structural elements and interior finishes to MEP systems and detailing, with a higher degree of automation and digitalization.

Q5: What are the main advantages of the MIC system for steel structures?

Lightweight with excellent seismic performance; factory-based production ensures rapid construction, taking approximately one-third to one-half the time of conventional cast-in-place methods; predominantly dry construction for environmental sustainability; controllable quality and high precision; high degree of finish, reducing on-site work; versatile applicability, complementing concrete MIC systems.

Q6: What safeguards does Xuelong Machinery have in place to protect data and information security across its production lines?

Customer BIM models, module drawings, and process parameters are transmitted over a dedicated network, isolated from the public internet. The control system implements tiered access isolation based on operator HMI, engineering stations, and IT network layers. Critical process parameters are automatically archived and backed up offsite, with no copies of customer process data retained at the XueLong Machinery plant.

Q7: What types of project scenarios are MIC’s renovation production lines primarily suited for?

Suitable for residential, hotel, dormitory, school, hospital, office, emergency medical, data center, modular military camp, and modular substation applications.

8. About Xuelong Machinery Manufacturing Co., Ltd.

Xuelong Machinery Manufacturing Co., Ltd. was founded in 1994. After more than three decades of development, it has established a relatively complete industrial chain in the EPS equipment sector and is one of the largest foam machinery manufacturers in northern China. Its core business encompasses EPS raw materials, equipment, and finished products, as well as complete sets of prefabricated concrete equipment, related products, building systems, and supporting technology development and services. Xuelong Machinery is recognized as a National High-Tech Enterprise, a “Little Giant” enterprise specializing in niche fields, and a National Prefabricated Building Industry Base. It serves as a director unit of the China Foam Plastics Association and the chair unit of the Hebei Foam Plastics Chamber of Commerce. Starting with EPS equipment, Xuelong Machinery has expanded into PC component production lines and full-line equipment and processes for modular integrated construction (MIC). The company has successfully completed the engineering delivery of an intelligent production line project for modular buildings (including interior finishing) for China State Construction Science & Industry Corporation Green Technology Co., Ltd., and possesses comprehensive capabilities in whole-line planning, equipment manufacturing, process delivery, data integration, and on-site support for steel-structure MIC finishing lines.

For more information on XueLong Machinery Manufacturing Co., Ltd.’s MIC renovation production line solutions, equipment lists, business cooperation opportunities, and more, please contact us via the following methods:

Entity: Xuelong Machinery Manufacturing Co., Ltd.

Scope of business: EPS equipment, PC component assembly lines, and complete-line equipment and processes for modular integrated construction (MIC)

Typical Delivery: Modular Construction (Finishing) Intelligent Production Line Project of China State Construction Engineering Corporation Science & Technology Co., Ltd.

—— Xuelong Machinery Manufacturing Co., Ltd.