Modular House

Modular，Prefab，Reuseable

20FT Expandable Tiny Home

Expandable tiny homes are prefabricated modular buildings with galvanized steel frames and composite sandwich panels. Their defining feature is two outward-extendable side “wings”: folded into standard shipping-container size for cost-efficient ocean/land transport, they expand on-site to double or triple the usable area.
Installation takes just hours to one day with minimal labor, as utilities like water and electricity are pre-fitted in factories. Boasting waterproof, fire-resistant, and thermal-insulated properties, they suit diverse climates and uses—from ADUs, vacation homes, and private home，farm house etc.

Compared with fixed container houses or prefabricated cabins, they offer superior space flexibility, faster deployment, and lower logistics costs, making them a budget-friendly alternative to traditional housing.

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Process for Installation

To install, first level the site, hoist the folded unit into position, remove transport locks, then slowly extend and lock both wings. Adjust and secure the support legs, reinforce the connecting hinges, hook up pre-installed utilities, and check structural stability before use—all taking just hours. Key precautions include keeping the unit strictly level during setup, operating wing extension steadily to prevent hinge damage, anchoring the base with expansion bolts in windy areas or for long-term use, and following manufacturer guidance for first-time installation to ensure safety and durability.

Key Features

Space Flexibility

Folds into standard shipping container size for easy storage; expands outward on both sides to double or triple the usable area, balancing transport compactness and on-site spaciousness.

Cost-Effective

LogisticsFits standard sea/land freight specifications. Multiple units can be loaded into one container, slashing long-haul shipping costs—ideal for export markets like Australia and the Americas.

Rapid Installation

Can be fully set up in hours to one day with minimal labor. Pre-installed water, electricity, kitchens and bathrooms enable immediate use upon on-site connection.

Durable & Climate-Resistant

Galvanized steel frame paired with rock wool/polyurethane sandwich panels delivers waterproof, fireproof, thermal-insulated, windproof and earthquake-resistant performance for diverse climates.

Modular Scalability

Supports horizontal/vertical assembly to form multi-unit complexes, suitable for resorts, construction dorms, disaster shelters and other scenarios.

Technical Specifications

Structure and Frame:  Galvanized steel structure
Flooring:  18mm cement floor, 18mm bamboo plywood, 2.0mm PVC flooring
Insulated Walls
Exterior Walls:  75mm sandwich panel, 0.25mm double-sided color-coated steel sheet (core material options: rock wool 80kg/m³, EPS, polyurethane)
Standard core material:  10kg/m³ EPS
Partition Walls:  50mm sandwich panel, 0.25mm double-sided color-coated steel sheet base. Insulation material same as above↑
Main Roof and Side Roofs:  75mm sandwich panel, 0.25mm double-sided color-coated steel sheet base. Insulation material as above↑Entrance door: Standard steel double door (KFC door, KFC sliding entrance door available upon request)Steel door: 50mm interlocking steel doorWindow: Standard PVC double-glazed sliding window (high-end thermally broken aluminum window and aluminum alloy sliding window available upon request) 930*900*6 pieces; 500*500*1 piece
Bathroom fixtures:  Toilet door, glass door, integrated shower (8mm tempered glass sliding door), toilet, washbasin, shower head
Electrical system

Case Study

We believe the projects that we have executed speak for themselves. CITIC HIC has engineered and provided 6 AG mills of Ø12.2m×11m (28000kW gearless drive) and 6 overflow discharge ball mills of Ø7.9×13.6m (2×9000kW gear drive) for Sino Iron Project in Australia. For Zijin Mining’s Duobaoshan Copper Mine project in Heilongjiang, we have manufactured and provided SAG mills of Ø11×6.4m (2×9000kW) and overflow discharge ball mills of Ø7.9×13.6m (2×9000kW) which have been well operating currently.

10012

Brazilian Miner Vale SA

23 large-scale ball mills, Ø5.5×8.8m
10013

Wengfu Phosphate Mine Project Phase II in Saudi Arabia (Ma'aden)

6 wet grinding rod mills, Ø4.6×6.7m
10014

Vedanta Project in South Africa

1 SAG mill, Ø8.5×5.5m
10010 (1)

Laos Phonesack Group's KSO Gold Mine Project (83,000t/d)

6 SAG mills, Ø8.8×4.8m
10011

Mongolian Erdenet Mining Corporation's Copper Mine Project (20,000t/d)

SAG mill, Ø9.75×4.88m
Full-process Solution for Mineral Grinding

We believe the projects that we have executed speak for themselves. CITIC HIC has engineered and provided 6 AG mills of Ø12.2m×11m (28000kW gearless drive) and 6 overflow discharge ball mills of Ø7.9×13.6m (2×9000kW gear drive) for Sino Iron Project in Australia. For Zijin Mining’s Duobaoshan Copper Mine project in Heilongjiang, we have manufactured and provided SAG mills of Ø11×6.4m (2×9000kW) and overflow discharge ball mills of Ø7.9×13.6m (2×9000kW) which have been well operating currently.

Why Choose CITIC HIC's Grinding Mills
  • High cost-effectiveness
    CITIC HIC grinding mills are recognized as China’s Manufacturing Industry Single Champion Product. CITIC HIC is responsible for setting the national standards of semi-autogenous mills (SAG mills) and ball mils, supported by powerful database, optimized process technology, cutting-edge design concept, and 60 years of experience in developing and nurturing innovative technology.
  • High operating rate
    The long life cycle of our products is based on the adoption of international standards, high-quality materials, state-of-the-art processing techniques.
  • Low-carbon & environmental-friendly processes
    Intelligent control technology coupled with long-life wear-resistant materials results in low-carbon and eco-friendly operations.
  • High-efficiency service
    Our service network is distributed all over the world, and our service team of seasoned professionals is reliable and willing to assist along the way. We are able to deliver quick response to customer needs and provide full life cycle support via online monitoring and diagnosing, product upgrading and continuous process improvement.

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Shenzhen DTEC Limited

  • Shenzhen office Address：Xiangnian Plaza, No. 4060, Qiaoxiang Road, Shahe Street, Nanshan District, Shenzhen,China
  • Email: info@szdtec.com.cn
  • Wuxi office address:11-5-701 Hongyi Road, Xinwu District, Wuxi City,Jiangsu province,China
  • Hongdong office address

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  • number：+86 176 6611 6277
  • Whatsapp: +86 176 6611 6277
  • Website: www.szdtec.com.cn
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