Onchtech Emergency Engineering Machinery Solutions

Spider Crane Solutions for Earthquake Rescue, Municipal Emergency Repair, and Harsh Road Conditions

Onchtech tracked spider crane solutions are designed for earthquake collapse rescue, municipal emergency repairs, and lifting operations in harsh off‑road conditions. Through all‑terrain tracked mobility, wireless remote control, hydraulic leveling, and multi‑function attachment expansion, the equipment can access narrow, muddy, and debris‑filled environments, enhancing safety and adaptability in emergency lifting and rescue operations.

On‑site Challenges in Emergency Lifting

Earthquake rescue, landslide and collapse clearance, road subsidence repair, and flood control in remote areas typically occur in environments with damaged roads, soft ground, confined spaces, and secondary risks. Such working conditions not only require lifting equipment to have sufficient capacity, but also demand that the equipment can quickly reach the operation site, establish stable support on uneven ground, and minimize personnel exposure time in hazardous areas.

Large Equipment Cannot Access the Core Area

When roads are blocked, temporary passages are narrow, or turning space is insufficient, traditional large wheeled cranes may be unable to reach the rescue point, increasing secondary transport and manual handling burdens.

Soft Ground Affects Mobility and Support

Debris, mud, swamps, and unevenly settled roads can cause wheeled equipment to sink, and uneven outrigger loading increases the risk of instability.

Close‑range Operation Increases Personnel Risk

Secondary collapses, falling rocks, and unstable structures may threaten on‑site personnel, requiring a safer distance between the equipment operation position and the hazard source.

Core Logic of the Onchtech Spider Crane Solution

The spider crane emergency lifting solution is an equipment system that enters complex sites with a compact tracked chassis, establishes a stable working base through independently adjustable spider outriggers, and then uses wireless remote control, telescopic boom, and optional attachments to perform material transport, obstacle removal, and high‑altitude rescue.

First, enter: Use the compact body and all‑terrain tracked chassis to pass through narrow passages, gravel roads, and muddy areas.
Then, stabilize: Independently adjust the hydraulic outriggers according to slopes, debris, and elevation changes to level and support the equipment.
Then, operate: Configure lifting actions based on load, lifting height, and working radius, and use the moment limiter to assist in monitoring the working state.
Control risk: Use the wireless remote control system so that operators can observe and control the equipment from a safe distance, reducing the need for close exposure.

Key Capability Modules

All‑Terrain Tracked Mobility

The engineered rubber tracks provide a large ground contact area and can adapt to gravel, mud, snow, swamps, and debris surfaces. Both the 5‑ton and 8‑ton models have a climbing ability of 25° (36%), suitable for emergency sites with damaged road conditions.

Long‑Range Wireless Remote Control

The equipment is equipped with a wireless remote control system. When on‑site communication conditions and safety regulations permit, operators can control the equipment from a position away from falling rocks, collapse zones, or unstable structures to perform obstacle clearance and material lifting.

Hydraulic Outrigger Leveling

The spider‑type outriggers feature a large hydraulic adjustment stroke, and each outrigger can be independently adjusted according to ground elevation differences, helping the equipment establish a suitable working support state on debris and slopes.

Man Basket and Hydraulic Fly Jib Expansion

The boom tip can be equipped with a man basket or hydraulic fly jib according to the model and mission, enabling the equipment to cover different tasks such as high‑altitude personnel rescue, material transport, obstacle‑crossing lifting, and debris clearance.

Moment and Load Assisted Control

The moment limiter is used to assist in monitoring the lifting operation state. Actual lifting must be performed in accordance with the load chart and operational guidelines, taking into account load, radius, outrigger deployment, ground bearing conditions, and on‑site wind conditions.

Compact Transport and Rapid Deployment

In the folded state, the 5‑ton model has a width of 1.50m and the 8‑ton model 1.60m, facilitating passage through confined passages and reducing space requirements when entering narrow construction areas.

Typical Application Scenarios

Application Scenario	Site Characteristics	Main Operations	Key Capabilities
Earthquake and Collapse Rescue	Dense debris, obstructed passages, secondary risks	Rescue material lifting, obstacle removal, high‑altitude assisted rescue	Compact access, wireless remote control, stable support
Municipal Road Emergency Repair	Road subsidence, narrow work areas, dense surrounding facilities	Pipeline, structural component, repair equipment and material lifting	Small‑space deployment, fine control, working radius coverage
Remote Water Conservancy and Flood Control	Mud, swamps, slopes, temporary roads	Pumping station equipment, pipelines, sandbags, and engineering material transport	Track mobility, climbing ability, independent outrigger adjustment
Emergency Lifting in Remote Areas	Limited transport conditions, large ground elevation differences, difficult equipment access	Installation of mechanical parts, communication facilities, and engineering components	Folded dimensions, all‑terrain mobility, multi‑task expansion

Recommended Equipment Configurations

Emergency Rescue Main Model

5‑Ton Tracked Spider Crane

Ideal for emergency missions that require a balance of rapid deployment, passage capability, and medium‑load lifting. It can cover municipal repairs, rescue material transport, and general debris clearance.

Heavy‑Duty Emergency Flagship Model

8‑Ton Tracked Spider Crane

Designed for rescue tasks with larger loads, higher lifting heights, and greater working radius requirements. It can be used for large obstacle removal, heavy component lifting, and complex site equipment recovery.

Specifications of the 5‑Ton and 8‑Ton Tracked Spider Cranes

Key Parameter	5‑Ton Emergency Rescue Main Model	8‑Ton Heavy‑Duty Emergency Flagship Model
Max. Rated Lifting Capacity	5.0 tons	8.0 tons
Max. Lifting Height	17.0m	21.0m
Max. Working Radius	15.0m	18.0m
Folded Dimensions	4.70m × 1.50m × 2.25m	6.15m × 1.60m × 2.25m
Machine Weight	6.7 tons	8.7 tons
Climbing Ability	25° (36%), all‑terrain tracks	25° (36%), all‑terrain tracks
Power System	Yuchai (Xinchai, Yanmar, Deutz – customizable)	Yuchai (Yunnei, Yanmar, Deutz, Cummins – customizable)
Emergency Rescue Configuration	Wireless remote control, moment limiter, man basket (optional)	Wireless remote control, moment limiter, man basket, hydraulic fly jib

Solution Value

Improves Accessibility to Complex Sites Reduces the impact of road disruption, space constraints, and soft ground on equipment deployment, bringing mechanized lifting capability closer to the core work area.
Reduces Personnel Exposure in Hazardous Areas Through wireless remote control and mechanized lifting, the need for operators to stay close to collapse zones, falling rocks, and unstable structures is greatly reduced.
Expands Single‑Machine Mission Coverage With configurations such as man baskets and fly jibs, a single equipment platform can cover material lifting, high‑altitude work, and obstacle clearance tasks.
Enables Predictive Emergency Resource Allocation By clearly defining the relationships among load, radius, terrain, and attachment configurations, it provides a basis for equipment prepositioning, transport arrangements, and on‑site lifting planning.

Onchtech Manufacturing and Service Support

Hunan Hongchang Machinery Co., Ltd., under the Onchtech brand, provides complete construction machinery, attachments, structural parts, and OEM, ODM, and OBM cooperation services. The company has integrated capabilities in structures, hydraulics, and power systems, supplying tracked spider cranes and supporting solutions to Europe, South America, Southeast Asia, and other global markets.

Remote Operation Support

Monitor equipment operating status and hydraulic data through the remote IoT management platform, providing status information to support maintenance.

Genuine Parts Supply

Leveraging Hunan's construction machinery industrial ecosystem and factory parts inventory, we offer direct shipment of common genuine parts to overseas agents and end customers.

Factory Inspection and Technical Support

Each tracked spider crane undergoes high‑pressure load and overload tests before delivery, and is backed by a full‑machine warranty and remote technical support according to applicable policies.

Customization Capability

We support OEM, ODM, and OBM partnerships, and can customize structures, power systems, and attachments according to target markets, operating conditions, and specific requirements.

Crawler Spider Crane Solutions for Emergency Rescue and Off-Road Lifting

Solution Highlights

All-Terrain Access

Remote Hazard Control

Uneven-Ground Leveling

Rescue Function Expansion