What can I do if the drilling depth is insufficient or the wrong anchor bolt type is selected? What are the professional solutions?

In elevator installation and large equipment securing, “insecure guide rail bracket installation” is an extremely common yet highly detrimental problem. Its root causes often stem from two core issues: insufficient drilling depth and incorrect heavy  duty anchor bolt selection. This not only causes the bracket to loosen and produce disturbing noises, but more seriously, the entire system cannot achieve the required torque and load capacity, posing a significant safety hazard.

Root Solution: Optimize heavy duty concrete anchors high-performance fasteners to enhance safety at the root

Traditional fastening methods often struggle with constant vibration and high load pressure. To completely eliminate the loosening problem, the anchor bolt itself must be innovated.

The key solution: Prioritize the use of high-performance anchor bolts. These products, such as the industry-renowned FIXDEX heavy-duty anchor bolts, are designed specifically for heavy-duty suspension and seismic resistance. Its working principle is to expand the bottom hole to create a mechanical interlock, distributing stress over a larger concrete volume. This provides superior grip and vibration resistance far exceeding that of ordinary expansion bolts, truly achieving earthquake and fatigue resistance.

Critical Operation: A torque wrench must be used. Even the best anchor bolts require standardized installation. Tightening with a torque wrench must be performed strictly according to the manufacturer’s specifications to ensure the designed preload torque is achieved. This is an essential step to ensure safety.

Countermeasure: Cleverly Use Leveling Shims to Overcome Uneven Base Surfaces

Uneven concrete shaft walls at construction sites are another common challenge. Forced tightening can cause internal stress in the heavy duty elevator anchor bolts and brackets, also affecting the anchoring effect.

Solution: Use high-strength steel shims of varying thicknesses for leveling. Galvanized, high-strength shims placed between the bracket and the base surface effectively compensate for unevenness, ensuring the bracket mounting surface is level and vertical, evenly distributing force, and avoiding localized stress concentrations.

Purchase List and Recommendations:

Recommended fasteners: M16/M20 rear-flared anchor bolt sets (including nuts and washers). These high-strength, heavy-duty anchor bolts are essential for safe elevator operation.

Purchase quantity calculation formula: Number of brackets × (4-6 sets per bracket) + 10% margin. This margin is crucial to account for construction losses, adjustments, and subsequent maintenance, ensuring that project progress is not delayed due to missing key components.