Lowbed Trailer Loading Steps for Large Mining Excavators

1. Pre-Loading Site & Trailer Preparation (Critical Foundation to Prevent Tipping)

1.1 Select qualified parking ground

1. Choose fully level, compact solid ground such as concrete yard or compacted hard gravel site; strictly ban loading on slopes, soft mud, loose sand or uneven pit terrain. When the excavator climbs the ramp, its huge weight will shift the trailer gravity center instantly, and soft ground will cause the trailer chassis to sink on one side, triggering side tipping.
2. Clear all stones, mud blocks, metal scraps and sundries within 5 meters around the trailer and ramp area. Hard debris under the ramp support legs will lead to ramp tilt during climbing.

1.2 Stabilize the lowbed trailer completely

1. Fully lower the double heavy-duty landing gear on both sides of the trailer front, adjust height to make the whole trailer horizontal, lock the landing gear mechanical self-locking device tightly to prevent sinking under heavy load. For detachable gooseneck models, disconnect the tractor head and move it forward to fully release the front deck for front loading.
2. Lower the hydraulic rear loading ramp slowly, extend the built-in support legs at the ramp tail to touch the ground firmly, tighten all hydraulic locking valves to avoid ramp retraction under excavator track pressure.
3. Clean the lowbed’s anti-slip checkered deck thoroughly, sweep away mud, gravel and dust. Remove all sharp metal burrs on the deck surface that may scratch the excavator’s track shoes and undercarriage.

1.3 Pre-inspect all fixing accessories

2. Adjust Mining Excavator Posture to Lower Gravity Center

1. Retract the excavator’s boom and stick completely, fold the bucket inward, lay the bucket flat and attach it tightly to the track undercarriage. Do not lift the bucket or stretch the arm outward, which will raise the whole machine’s gravity center sharply and exceed road height limits.
2. Straighten the left and right tracks to keep them fully parallel with the loading ramp; diagonal climbing will generate lateral thrust and push the trailer sideways. Remove large embedded stones in track treads to avoid scratching the anti-slip deck surface during driving.
3. Check the excavator fuel tank, hydraulic oil tank and counterweight structure. Confirm the heavy counterweight at the machine tail stays centered, no unilateral weight deviation that causes unbalanced load on the lowbed axles.

3. Slow Climb Onto Lowbed Deck With On-Site Guidance

1. The ground guide stands on the side of the ramp (never stand directly in front or behind the track travel path) to send clear hand signals to control the excavator speed. The excavator must shift to the lowest travel gear, advance evenly at ultra-low speed, strictly forbid sudden acceleration, emergency braking or sharp steering on the ramp.
2. When the front track steps onto the deck transition area, pause for 10 seconds to observe the trailer and ramp for sinking or shaking. If the ramp tilts or landing gear sinks, stop immediately and re-adjust ground support legs before continuing.
3. Drive the excavator forward slowly to the pre-marked balance load position on the deck. The core rule of weight layout: place the excavator’s heavy engine and counterweight section above the lowbed’s thickened main reinforced I-beams, evenly distribute the total weight to each axle group, avoid the heavy counterweight overhanging the trailer rear or front gooseneck. Overhang will cause single axle overload, frame bending and overweight penalties at road weight stations.
4. After the whole track fully stands on the deck, engage the excavator’s parking brake and shut down the engine temporarily to prepare for multi-point fixing.

4. Multi-Directional Lashing & Anti-Slide Blocking to Lock Excavator Firmly

4.1 Multi-point steel chain tension fixation

1. Prepare 4 groups of heavy-load lashing chains as minimum configuration: fix one group at the front of the left track, one group at front of the right track, one group at the rear left track, one group at rear right track. Connect chain lock hooks to the thick forged lashing rings reserved on both sides of the lowbed deck.
2. Tighten each tensioner diagonally in turn, ensure every chain keeps consistent tightness without loose slack. Loose chains will lose fixing effect once the vehicle vibrates on gravel mine roads.
3. Wrap soft rubber protective pads at the contact position between steel chains and excavator track frames or body metal plates, to prevent chain friction scratching the machine’s paint and metal surface.

4.2 Install anti-slide rubber chocks

4.3 Auxiliary anti-shift reinforcement for super-large excavators

5. Post-Loading Inspection & Trailer Pre-Departure Safety Modification

1. Retract the hydraulic rear ramp completely, lift the support legs and lock all ramp latches tightly, shake the ramp hard by hand to confirm no loose shaking during high-speed transport. For detachable gooseneck lowbeds, re-connect the tractor head and lock all gooseneck connecting pins.
2. Recheck all lashing chains, tensioners and anti-slide chocks one by one: confirm no loose chains, displaced chocks or deformed lock hooks. Tighten any slack tensioners again.
3. Check the whole vehicle’s overall width and height: if the excavator exceeds standard road width, install over-width warning boards, reflective marker strips and flashing warning lights on both sides of the trailer as required by local mine and traffic regulations.
4. Inspect the trailer’s tire pressure, wheel nut tightness, brake system and lighting assembly. Test brake lights, side marker lights and hazard warning lights to guarantee normal operation for night travel on remote mine roads.
5. Clean loose metal scraps and sundries on the deck, store spare fixing chains and tools in the trailer’s side storage box for emergency use on the way.

6. Common Dangerous Loading Mistakes That Cause Severe Losses

1. Loading on sloped or soft ground: The trailer loses horizontal balance instantly when the heavy excavator climbs the ramp, leading to rollover and total damage of expensive mining equipment.
2. Fast acceleration or sharp steering on the ramp: Track sliding scratches the deck, even makes the excavator fall off the ramp directly, causing equipment scrapping and personnel injury.
3. Single-point only lashing without anti-slide chocks: The excavator slides forward during long downhill mine road driving, crushes the trailer rear ramp and breaks the frame.
4. Unbalanced weight layout with heavy counterweight overhanging: Single axle overload deforms the lowbed’s main beam permanently, and drivers face heavy overweight fines at border or mine weight checkpoints.
5. Ignore protective pads between chains and excavator body: Friction peels off the machine’s anti-rust paint, leading to metal corrosion and additional maintenance costs for mine equipment owners.
6. Skip over-width warning signs for oversized excavators: Traffic police issue high fines, and the vehicle is forbidden to pass public highways.

LUCKSUN Lowbed Trailer Special Design to Support Safe Excavator Loading

1. Ultra-thick patterned anti-slip deck: 4–6mm wear-resistant steel plate increases track friction coefficient greatly, reduces sliding risk even on rainy days.
2. Dense heavy-duty forged lashing rings distributed across full deck: Meet multi-point lashing requirements for all tonnage excavators, no insufficient fixing points during loading.
3. Reinforced hydraulic ramp with thickened support legs: Bear heavy impact from excavator climbing without deformation, suitable for long-term frequent loading and unloading in mining yards.
4. Wide-track multi-axle walking mechanism: Expand the left-right wheel distance to improve lateral stability, effectively resist side tipping when transporting high-center-of-gravity mining machinery.
5. Optional detachable front gooseneck: Realize front loading for super-large excavators, reduce ramp gradient and lower climbing difficulty for oversized equipment.

Long-Term Benefits of Standardized Loading Workflow

1. Zero major transport accidents: Avoid huge compensation losses caused by excavator rollover, sliding and collision damage during haulage.
2. Extend service life of lowbed trailers: Balanced weight distribution reduces frame torsion, axle overload and local deck abrasion, cutting annual trailer repair expenses by over 25%.
3. Eliminate traffic fines: Reasonable height and weight layout fully complies with local road transport regulations, no overweight or over-width penalty fees.
4. Protect mining equipment intact: Multi-point soft fixing avoids paint scratch, track wear and structural deformation of excavators, saving mine equipment maintenance cost after delivery.
5. Improve loading efficiency: Fixed step-by-step operation reduces repeated debugging time, one group of staff can finish full loading within 30 minutes for a large mining excavator.

Final Conclusion