Crawler Spider Crane Solutions for Mountain Terrain and Heritage Site Lifting

Lifting Challenges in Difficult-Access Environments

Cableway construction in mountain areas, restoration of historic structures, steep-slope water projects and steel bridge installation in remote regions often take place without paved access roads. Work zones may include slopes above 25 degrees, muddy or soft ground, stepped surfaces, narrow paths and confined cliff-edge locations. Conventional truck cranes and large transport vehicles may be unable to reach or establish safely at these sites.

• Restricted Site Access

  Narrow mountain tracks, steep gradients and muddy surfaces can prevent wheeled cranes and heavy transport trailers from reaching the lifting point.

• Uneven Equipment Setup

  Slopes, steps, pits and irregular ground make conventional outrigger placement difficult and increase the risk of instability if ground conditions are not properly assessed.

• Unsafe Manual Handling

  Historic timber beams, cableway structures and bridge components can weigh several tonnes. Manual handling is inefficient and exposes personnel to significant lifting and crushing hazards.

Onchtech Solution Logic

The Onchtech rough-terrain spider crane solution combines a crawler undercarriage, independently positioned outriggers, long-reach lifting geometry and remote operation. Its purpose is to move lifting capability closer to the workface while reducing dependence on wide paved access roads and large crane setup areas.

1. 01. Reach the Work Zone Use crawler mobility to travel through narrow, muddy, sandy or steep access routes.
2. 02. Establish Support Position and hydraulically support the outriggers according to the available ground profile and approved setup plan.
3. 03. Lift Across Obstacles Apply up to 21–25 m lifting height and 18–23 m operating radius, depending on the selected model.
4. 04. Operate from a Clear Position Use wireless remote control from a suitable observation point outside identified falling-object or slope-risk zones.

Core Solution Capabilities

Application Scenarios

• Mountain cableway constructionTransporting and positioning tower sections and structural components along steep routes.
• Heritage restorationHandling timber beams, stone elements and repair materials where access and site disturbance must be controlled.
• Steep-slope water projectsLifting equipment and structural parts near embankments, channels and uneven water infrastructure sites.
• Remote bridge constructionInstalling steel components at locations where large mobile cranes and transport vehicles cannot readily enter.

Recommended Crawler Spider Cranes

Core Product Specifications

Operational Value

• Improved Site Accessibility Crawler mobility and compact folded dimensions reduce dependence on wide, hardened access roads.
• Reduced Manual Handling Mechanical lifting replaces high-risk manual movement of multi-tonne structural components.
• More Flexible Setup Independently positioned outriggers support deployment where space and ground levels vary across the work area.
• Controlled Lift Execution Remote operation and extended reach help teams manage load positioning from an appropriate observation point.

Onchtech Manufacturing and Service Support

Onchtech is the dedicated machinery brand of Hunan Hongchang Machinery Co., Ltd., an integrated manufacturer of complete construction machinery, attachments and structural components. The company supports global B2B customers through direct supply and flexible OEM, ODM and OBM cooperation.

• Manufacturing foundation: A production site covering more than 180 mu, approximately 12 hectares, with over 50,000 square metres of building area.
• Remote service: Equipment operating and hydraulic information can be supported through the Hongchang remote IoT management platform, including maintenance reminders.
• Parts supply: Original spare parts are supplied directly from the manufacturing base in Hunan, China, with inventory support for commonly used components.
• Quality control: Crawler spider cranes undergo high-pressure load and overload testing before shipment.
• Global support: Equipment warranty and lifetime remote technical support are provided according to the applicable product and commercial terms.