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The Madoors USA Mechanical Axle Type Tyre Killer is a high-security directional vehicle access control system specifically designed for entrance points facing vehicle attack threats and high-security requirements — providing one-way directional vehicle passage while immediately destroying the tyres and wheel rims of any unauthorized vehicle attempting passage in the opposite direction, regardless of vehicle tonnage or approach speed. With hardened steel teeth standing 10cm above ground level on a 32cm full tooth length, designed to withstand 35 tons of axle load, each tooth working individually under vehicle weight and returning automatically to the raised position after passage, and optional Latch Down Mechanism allowing individual teeth group locking by one person, the Madoors USA Mechanical Axle Type Tyre Killer provides the most secure passive directional vehicle access control available for banks, military bases, airports, embassies, and all high-security vehicle access points.
TECHNICAL SPECIFICATIONS
The Madoors USA Mechanical Axle Type Tyre Killer uses hardened steel as the primary material for all main mechanical elements — providing the material hardness and structural strength required for sustained tyre and wheel rim destruction performance under the impact loading of high-tonnage, high-speed unauthorized vehicle approaches. The hardened steel teeth stand 10cm above ground level in the default raised position — providing the penetration depth required for immediate, complete tyre wall penetration and wheel rim engagement on all vehicle types from passenger cars through heavy goods vehicles and military transport.
The full tooth length of 32cm provides the structural base and tooth body required to withstand the axle loading of authorized vehicles passing over in the permitted direction — the 35-ton axle load rating confirms structural integrity for the heaviest commercial and military vehicles in unrestricted authorized-direction pass-over use without tooth deformation or mechanism damage.
Each tooth works individually — the tooth lowers under the tyre weight of an authorized vehicle passing over in the permitted direction, then automatically returns to the raised default position after the tyre passes. This individual tooth action allows any width vehicle to pass in the authorized direction at any speed without mechanical engagement damage, while maintaining all other teeth in the raised blocking position throughout the authorized vehicle passage.
The optional Latch Down Mechanism allows teeth groups to be locked individually in the lowered position — the unique design allows one person to easily lock each teeth group without tools or mechanical assistance. Latch Down Mechanisms are positioned near each teeth group on the tyre killer, providing distributed locking points along the full barrier length rather than a single centralized mechanism. Individual teeth group locking allows selective lowering of specific sections while maintaining other sections in the raised position — enabling controlled bidirectional access through selected sections during authorized operational periods.
KEY FEATURES
35-Ton Axle Load Rating — Heavy Vehicle Authorized Pass-Over
The 35-ton axle load rating for authorized-direction pass-over is the structural specification that confirms the Madoors USA Mechanical Axle Type Tyre Killer as capable of handling the heaviest commercial, industrial, and military vehicles in normal authorized direction traffic — fully loaded articulated lorries, military supply vehicles, and heavy construction plant all fall within the 35-ton axle load capability. This heavy-vehicle structural rating directly ensures that the tyre killer mechanism is not damaged by authorized vehicle pass-over, maintaining the raised blocking performance for unauthorized direction attempts throughout the full service life.
Individual Tooth Operation — Passive Directional Control
The individual tooth operation under vehicle weight with automatic spring return is the passive directional control mechanism that requires no power, no control system, and no operator action for the basic one-way access control function — the vehicle weight itself activates the directional passage, and the spring mechanism restores all teeth to the blocking position after each vehicle passes. This passive operation provides 24-hour continuous directional access control independent of power supply, electronic systems, and operator presence.
10cm Tooth Height — Immediate Multi-Vehicle Type Tyre Destruction
The 10cm tooth height above ground level provides the penetration depth required for immediate, complete tyre destruction across all vehicle types encountered at security checkpoints — the 10cm penetration is sufficient to fully penetrate the sidewall and internal structure of passenger car tyres, light commercial vehicle tyres, and heavy goods vehicle tyres simultaneously, causing immediate tyre failure and rim engagement that immobilizes the vehicle within a few meters of the tyre killer position.
Optional Individual Teeth Group Latch Down — Controlled Bidirectional Access
The optional Latch Down Mechanism with individual teeth group locking provides controlled bidirectional access capability when required — selected sections of the tyre killer can be locked in the lowered position to allow bidirectional vehicle movement through those sections during authorized operational periods, while other sections remain raised for continued directional restriction elsewhere on the barrier. The one-person easy locking design of the Latch Down Mechanism directly enables rapid operational configuration changes by a single security officer without tools or assistance.
High Tonnage Vehicle Attack Resistance
The specific confirmation that high-tonnage, high-speed vehicle attacks cannot continue through the tyre killer — because of the combined wheel and rim damage inflicted — directly addresses the primary vehicle attack threat at high-security entrances. A fully loaded truck or SUV attempting to force entry at high speed across the Madoors USA tyre killer immediately suffers catastrophic tyre destruction and rim damage on all axles simultaneously, removing all driving traction and causing complete vehicle immobilization within meters of the barrier position regardless of engine power or vehicle momentum.
Hardened Steel Construction — Long-Term Performance
The hardened steel construction for all main mechanical elements provides the material durability required for sustained outdoor service through all weather conditions, repeated authorized vehicle pass-overs at the 35-ton axle load limit, and multiple unauthorized vehicle tyre destruction events — maintaining tooth sharpness, structural integrity, and mechanism function throughout the full operational service life without the progressive performance degradation that softer steel constructions experience.
PRODUCT RANGE
Standard Mechanical Axle Type Tyre Killer
Individual tooth operation, automatic spring return, 10cm raised height, 32cm tooth length, 35-ton axle load, hardened steel construction. No power required. Available in standard road widths.
With Optional Individual Latch Down Mechanism
All standard features plus individual teeth group locking in the lowered position for controlled bidirectional access. One-person easy locking design. Group locking positions distributed along full barrier length.
ASSEMBLY & INSTALLATION SEQUENCE
Installation Position & Width Specification
Lane width, vehicle type profile, authorized direction, unauthorized direction threat assessment, optional Latch Down Mechanism requirement, and installation surface are confirmed.
Road Surface Preparation & Excavation
The road surface is prepared for the tyre killer installation — in-ground installation requires excavation to the specified depth for the tyre killer housing. Surface mount installation requires anchor bolt positions at the frame perimeter.
Tyre Killer Housing & Frame Installation
The tyre killer housing frame is installed at the confirmed position — leveled, aligned perpendicular to vehicle approach direction, and anchored or embedded to the confirmed specification. Drainage provision within the housing is completed.
Axle & Tooth Assembly Installation
The hardened steel rotating axle and tooth assembly are installed in the housing. Individual tooth free rotation under simulated vehicle weight and spring return to the raised position are verified for all teeth across the full barrier width.
Latch Down Mechanism Installation (Where Specified)
Individual Latch Down Mechanisms are installed at the confirmed teeth group positions along the barrier length. One-person locking and release function for each teeth group are tested.
35-Ton Load Testing & Tooth Performance Verification
Authorized-direction vehicle pass-over at the maximum specified axle load is tested — tooth lowering under load and automatic return to raised position after pass-over are confirmed for all teeth. Unauthorized direction tooth resistance is verified.
Mandatory Signage & Operational Handover
Warning signage at all vehicle approach positions is installed and confirmed visible at sufficient distance for safe stopping. Complete operational testing and installation handover documentation are completed.
DEPLOYMENT SCENARIOS & USE CASES
Madoors USA Mechanical Axle Type Tyre Killers are deployed across the full range of high-security vehicle access control applications requiring passive directional spike control with 35-ton heavy vehicle capability.