Lianggong Aluminum Manhole Shields Hydraulic Slide Rail Shoring Steel Trench Box for Municipal Pipeline Excavation Construction

Product Description

Product Description

Trench Box

Manhole Box

Trench Box (also referred to as a trench shield or excavation shoring box) is a steel protective structure used to prevent trench wall collapse during underground construction. It consists of two parallel side walls connected by adjustable spreader bars or internal struts, forming a rigid, self-supporting shield that workers operate inside.
Manufactured from high-grade Q355 steel or aluminum alloy , our trench boxes are welded and reinforced with internal stiffeners to withstand high lateral earth pressures. The open-top and open-end design allows for continuous pipe laying, backfilling, and equipment movement without relocating the box. Surface options include hot-dip galvanizing, epoxy coating, or industrial-grade anti-corrosion paint, ensuring long-term durability in wet, chemical, or abrasive soil conditions.
Designed with ease of handling in mind, each trench box is equipped with rigging points for quick positioning using excavators or cranes. Multiple units can be stacked or joined side-by-side for deeper or wider excavations.

The Manhole Box (also known as a manhole shield or utility trench box) is a welded steel structure designed to support excavation walls during the installation, repair, or maintenance of underground utilities such as sewer systems, storm drains, water mains, and telecom conduits.

Constructed from high-strength Q355 steel or aluminum alloy with reinforced sidewalls and heavy-duty lifting lugs, the system is built to withstand high lateral earth pressures while maintaining a safe working environment for crews inside the excavation. The open-top and open-bottom design allows for easy equipment access, pipe laying, and backfilling without removing the box.

Available in standard and custom sizes, our manhole boxes feature fork-pocket bases for easy transport and positioning, as well as stackable designs for deeper excavations. Surface finish options include galvanizing or industrial-grade anti-corrosion paint, ensuring long service life even in wet or chemically aggressive soil conditions.

Slide Rail Shoring System

Hydraulic Trench Shoring System

Slide rail shoring system is a modular, high-strength temporary shoring solution specifically engineered for deep excavations, trench work, and underground engineering. Comprising panels, rails, and struts, the system enables rapid assembly to form a continuous and stable earth retention structure. It adapts to a wide range of soil conditions, ensuring construction safety while significantly improving operational efficiency.

Manufactured from high-quality Q355 steel with galvanized or painted surface finishes, the product delivers exceptional corrosion resistance and an extended service life. The slide-rail design allows for flexible adjustment of trench widths, while the integrated rail structure ensures precise panel alignment and uniform load distribution, greatly enhancing the overall rigidity and stability of the system.

The Hydraulic Trench Shoring System is a lightweight, adaptable active support that uses hydraulic cylinders to brace trench walls and prevent collapse. Constructed with durable aluminum rails and hydraulic actuators, it offers excellent portability and allows a single worker to install or remove it entirely from ground level-eliminating the need to enter the trench and significantly improving onsite safety. Typical applications include municipal utilities, cable laying, water and sewer pipelines, telecom conduit work, and foundation excavations, particularly in confined spaces or sites that require frequent relocation.

This system features active hydraulic support, tool-free rapid deployment, above-ground operation for safety, and adjustable lightweight aluminum construction that resists corrosion and reduces logistics costs.

Trench Shoring System & Essential Matching Facilities - Platform, Walkway, Handrail, Ladder, Spindle, Strut Included.

Certifications

Company Profile

WELCOME TO OUR COMPANY 

YANCHENG LIANGGONG FORMWORK CO., LTD is a leading factory providing one-stop formwork & scaffolding solutions for global construction projects.

We feature a 45,000+ m² production facility with high-capacity lines for Timber Beam, Steel, and Aluminum systems. Backed by 30+ engineers, we offer free CAD designs, structural calculations, and OEM/ODM services. All products are CPR-compliant with full test reports.

As a trusted partner for 300+ projects across 70+ countries, we regularly attend major expos including Bauma, Big 5, and Canton Fair. From design to on-site guidance and spare parts supply, we ensure your project stays on schedule and budget.

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