How to Assess Site Access for a 2 Ton Spider Crane

Site Access Planning for Confined Lifting

Assessing access is an essential step before placing a 2 ton spider crane on a job site. The Onchtech compact tracked spider crane is designed for lifting work where conventional cranes may be difficult to position, including building interiors, factory workshops, rooftops, narrow exterior routes and uneven work areas. A practical assessment should confirm the travel route, ground condition, outrigger setup area and required lifting position before the machine enters the site.

Start with the Machine Envelope and Travel Route

The 2 ton spider crane has an overall width of 0.71 m and an approximate machine weight of 1.8 t. Its compact width and rubber tracked undercarriage can support movement through restricted access routes and help protect finished floor surfaces. However, the nominal machine width is only one part of access planning: the full route must also allow for passage variation, turns, door openings, ramps, surface transitions and safe operator movement.

Do Not Assess Access by Width Alone

A route that appears wide enough on a drawing may still be unsuitable in practice. Measure the actual site condition, including door frames, protruding fixtures, floor level changes and the turning space needed before reaching the lifting area. Site personnel should also consider whether access remains clear when materials, workers or temporary protection are present.

Assess Outrigger Deployment Space at the Lifting Position

Once the crane reaches the work area, adequate space is needed to deploy and adjust its outriggers. The Onchtech 2 ton spider crane uses a manually extended, independently adjustable hydraulic outrigger system. This configuration supports leveling and positioning on conditions such as steps, slopes and uneven terrain, provided that the setup area and supporting ground are properly evaluated.

• ✓ Available footprint: Confirm that each outrigger can be positioned without contacting walls, equipment, stored materials, walkways or protected building finishes.
• ✓ Ground support: Check bearing conditions under each outrigger location. Avoid relying on unverified voids, covers, edges or surfaces with uncertain load-bearing capability.
• ✓ Leveling requirement: Use the independently adjustable hydraulic outriggers to establish a suitable, stable working position in accordance with the operating instructions.
• ✓ Overhead and swing area: Keep the planned lifting area clear of overhead services, structural members and other obstructions that could interfere with boom movement or the suspended load.

Match the Setup Position to the Required Lift

Site access and lift planning should be considered together. This compact spider crane is configured with a four-section high-strength manganese steel telescopic boom, with a stated maximum lifting height of 6.5 m above ground and a maximum working radius of 6 m. The actual working position should be selected according to the load, radius, height, ground condition and the applicable load chart.

The permissible lifting capacity varies with operating radius and setup conditions. Always refer to the applicable equipment documentation and load chart rather than estimating capacity from the crane’s nominal 2 ton class.

Typical Restricted-Access Lifting Environments

The compact dimensions, tracked mobility and adjustable outriggers make a 2 ton spider crane relevant where lifting work must be completed close to the point of installation. Common planning environments include:

• Indoor glass curtain wall installation where access through building openings and floor protection need attention.
• Exterior maintenance work in locations with narrow side passages or limited crane positioning space.
• Rooftop and upper-floor lifting where route planning, surface conditions and available setup space require verification.
• Substation and electrical construction where equipment placement must be coordinated around fixed infrastructure.
• Factory equipment maintenance where production layouts, indoor clearances and nearby machinery affect the crane route and setup position.

Practical Pre-Deployment Checklist

1. Walk the complete route from unloading area to lifting position; identify the narrowest passage and all changes in elevation.
2. Confirm clearance for the 0.71 m-wide crane, with appropriate practical allowance for safe movement through the actual site.
3. Verify floor, ramp and ground conditions for crane travel and for outrigger support at the setup location.
4. Measure the available outrigger deployment area and keep it free from obstructions.
5. Check lifting height, required radius, load characteristics and overhead restrictions against the relevant load chart and operating guidance.
6. Establish a controlled work zone and ensure operation is performed by trained personnel in accordance with local site requirements.

Plan Access Around the Actual Job Site

Onchtech supports B2B customers with compact engineering machinery and configurable manufacturing cooperation. For a 2 ton spider crane application, providing route dimensions, photographs of the work area, ground details, required lifting height, radius and load information helps create a more informed discussion about equipment suitability and configuration options.