Ultra-Tensile Burst Expansion Anchor

Product Advantages

High Tensile Strength & Pull-Out Performance

The deep mechanical undercut design allows the anchor’s tail segments to form a "mechanical hook," generating exceptional holding power. For example, an M16 Burst Expansion Anchor in C30 concrete achieves an ultimate tension of over 70kN—making it ideal for super-heavy systems like 10,000-ton capacity gantry crane rails or nuclear power equipment supports. This strength eliminates risks of anchor failure under extreme static loads.

Superior Vibration Resistance & Anti-Loosening

Equipped with a dual anti-loosening mechanism: the mechanical undercut lock resists structural vibration, while the integrated spring washer absorbs high-frequency micro-vibrations. It has passed the ISO 16130 vibration test, showing zero loosening after 2,000 cycles at ±2mm amplitude—critical for dynamic environments like high-speed rail seismic bearings or ship deck machinery.

Exceptional Impact Load Capacity

The undercut structure disperses stress evenly, tolerating instantaneous shock loads up to 15g acceleration (equivalent to twice the force of an automotive collision). This makes it suitable for high-impact scenarios such as mining crusher bases or military weapon test platforms, where sudden force could compromise standard anchors.

Removable Design & Smart Monitoring Potential

Unlike permanent anchors, it features a removable design: reverse tightening releases the cone plug, enabling non-destructive removal and cutting maintenance costs by 50%. Optional fiber-optic sensor anchors also support real-time preload loss monitoring, integrating with IoT systems for proactive engineering management.

Detail Data

The Burst Expansion Anchor offers precise dimensional specifications across models (M6 to M20) to match diverse project needs:

For M6 series (e.g., 6*60): screw length = 60mm, effective burial depth = 43mm, installation hole diameter = 8mm, drilling depth = 50mm, installation torque = 4Nm, design tension = 0.99kN, ultimate tension = 5kN.

For larger M20 models (e.g., 20*200): screw length = 200mm, effective burial depth = 150mm, installation hole diameter = 23mm, drilling depth = 164mm, installation torque = 110Nm, design tension = 35kN, ultimate tension = 100kN.

All models require substrates with ≥C30 concrete strength (compressive strength >30MPa) and thorough dust removal (via compressed air + brush) during installation to ensure optimal performance.

Applications

Heavy-Duty Industrial Suspension

Ideal for large industrial crane rails (shipyard gantry cranes, nuclear plant bridge cranes), high-rise building façade maintenance tracks, and wind turbine tower bases. A single M36 bolt withstands ≥450kN pull-out force, resisting wind/wave overturning moments per IEC 61400-6 and DNVGL standards.

Extreme Environment Anchoring

Cryogenic conditions (e.g., LNG tank anchoring): Uses AISI 316L stainless steel (＞100J impact toughness at -196°C).

High salt-spray environments (e.g., cross-sea bridge cable towers): 316 stainless steel + hot-dip galvanizing (salt-spray resistance >5,000 hours).

Nuclear radiation zones: Special alloys (ASTM A276 Type 304N) resist γ-ray embrittlement.

Prohibited Applications

Not suitable for lightweight masonry blocks (crushing risk), concrete with cracks >0.3mm (lock failure), ultra-high-frequency vibration (>50Hz, >5mm amplitude), or strong acid environments (pH <2, causing intergranular corrosion).

Why Choose Us

We provide end-to-end support, including:

Pre-sales technical inquiry (model selection based on load, substrate, and environment).

On-site installation guidance to ensure compliance with depth/torque requirements.

Quality certification documents (e.g., compliance with ACI 318-14, EN 1991-2).

Customized models (e.g., short-bolt designs for shallow holes) for bulk orders.

Our team responds to inquiries within 24 hours and offers a 12-month warranty for manufacturing defects.