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Gaff Barrier Mini Road Blocker
The Madoors USA Gaff Barrier Mini Road Blocker is a compact, floor-embedded, hydraulically operated circular rising barrier system — designed in the form of a circular mushroom-shaped shield that rises from the ground in a circular motion to prevent vehicle passage at high-security access points. With a compact floor installation box of 60 × 28 × 55 cm, a shield radius of 550mm rising to 450mm above ground level, 20-ton minimum load capacity, ST 37 steel construction, microprocessor CPU control, and CE, TSE, ISO, and AIDA certification, the Gaff Barrier provides a high-security, aesthetically minimal vehicle barrier solution that is fully embedded in the floor surface and invisible when in the lowered position.
Multiple Gaff Barrier units can be operated in combination using group relay cards — with simultaneous operation across any number of units and continued operation of all remaining units if one or more units fail. The system includes phosphorescent warning film, red LED flashing warning lights in darkness, 50-watt fixture lamps for night illumination, and compatibility with photocells, traffic lights, loop detectors, remote controls, proximity card readers, and programmable timers.
TECHNICAL SPECIFICATIONS
The Gaff Barrier Mini Road Blocker operates on 220V AC / 50Hz power with a 0.75 kW electric motor driving a hydraulic system that raises and lowers the circular shield. Opening and closing speed is 10 to 15 seconds. In the event of power failure, the barrier can be manually descended using a key — maintaining access management capability without electrical supply.
Shield specifications: radius 550mm, width 200mm, height above ground in open position 450mm, shield thickness 6mm, side thickness 4mm. The circular shield rises from the floor-embedded housing in a circular rotating motion — the slice-of-cake shape rotating around the central pivot describes the distinctive circular arc rising mechanism that gives the Gaff Barrier its unique vehicle-stopping geometry. The 20-ton minimum load capacity allows heavy vehicles to be stopped by the raised shield without structural failure of the barrier mechanism.
The breakaway engine mounting stud protects the motor and chassis from damage when the barrier sustains a heavy vehicle impact — the stud breaks under overload conditions, preventing damage propagation to the engine and structural components and allowing the engine to be replaced without chassis replacement.
All mechanical components are electrostatically powder painted in yellow, red, blue, or orange. Phosphorescent warning film on the body charges in daylight and emits a red flashing warning in darkness — supplemented by metal body LED red flashing warning lights. 50-watt fixture lamps on the front of the barrier provide illumination in both daylight and nighttime conditions.
The microprocessor CPU architecture manages all operational functions — hydraulic pressure adjustment in both raise and lower directions, programmable motor protection with automatic shut-off, automatic closing direction selection, adjustable timer, and LED operating status indicators. All electronic components are housed in PVC IP65 water, moisture, and dust-resistant enclosures. Cable entries use removable connectors for easy maintenance access. Separate fuses for motor and 24V AC power circuits provide individual circuit protection.
The engine removal design allows the complete engine group to be removed from inside the barrier body through the maintenance access cover without dismantling the barrier from the floor — significantly reducing maintenance time and cost for engine service and replacement.
KEY FEATURES
Circular Rising Motion — Unique Vehicle Blocking Geometry
The circular arc rising mechanism — the shield rises in a circular rotating motion from the floor-embedded housing — provides a distinctive and immediately recognizable barrier geometry that approaching vehicle operators cannot mistake for any other road surface feature. The circular mushroom shape provides 360-degree engagement coverage — a vehicle approaching from any angle within the shield radius encounters the raised barrier surface.
20-Ton Minimum Load Capacity — Heavy Vehicle Stopping
The 20-ton minimum load capacity confirms structural stopping capability against heavy commercial vehicles — trucks, tankers, and heavy goods vehicles — that represent the primary vehicle attack threat at high-security installations. The floor-embedded steel construction transfers impact load directly into the surrounding floor structure through the barrier housing anchorage.
60 × 28 × 55 cm Floor Box — Minimal Installation Footprint
The compact floor installation box dimensions allow the Gaff Barrier to be installed in constrained floor spaces where larger road blockers and bollard systems cannot be accommodated. The minimal footprint makes the Gaff Barrier particularly suitable for indoor vehicle access control points, covered parking facility entrances, and any application where installation space in the floor is limited.
Breakaway Engine Mounting — Self-Protecting Under Impact
The breakaway engine mounting stud is a deliberate designed failure point — protecting the motor and chassis from overload damage by sacrificing the mounting stud under heavy impact conditions. This self-protective design means that a barrier hit by a heavy vehicle requires only a stud replacement rather than complete motor or chassis replacement — significantly reducing the maintenance cost of barrier repair after an impact event.
Redundant Multi-Unit Group Operation
Multiple Gaff Barrier units operate in simultaneous group coordination using a group relay card — any number of units can be combined to block wider vehicle access points or create barriers at multiple positions simultaneously. The redundant operation principle ensures that all remaining units continue operating normally if one or more units fail — a critical operational resilience requirement for vehicle access control systems where failure of a single unit must not disable the complete installation.
IP65 Electronics — CE, TSE, ISO & AIDA Certified
All electronic components in IP65 PVC enclosures provide complete water, moisture, and dust protection for the control electronics in the demanding environment of floor-embedded outdoor installations. CE, TSE, ISO, and AIDA — the International Automatic Door Manufacturers Association — certifications confirm compliance with European, Turkish, international, and automatic door industry quality and safety standards.
300-Day Mechanical Capability — Locked Maintenance Access
300-day mechanical operation capability without mechanical service provides an extended maintenance-free operational period for active access control applications. The locked maintenance door on the circular mushroom barrier body provides secure access to all internal components for cleaning and scheduled maintenance — preventing unauthorized access while allowing authorized maintenance personnel complete access to the barrier interior.
ASSEMBLY & INSTALLATION SEQUENCE
Floor Preparation & Box Excavation
Floor excavation is completed to the 60 × 28 × 55 cm box dimensions at the specified installation position. Electrical conduit routing from the power supply to the box position and cable connections to all peripheral accessories — photocells, traffic lights, loop detectors, remote control receivers — are installed during floor preparation.
Barrier Box Installation & Anchoring
The Gaff Barrier housing is installed in the prepared floor excavation and anchored. Box level and alignment with the surrounding floor surface are verified.
Hydraulic System & CPU Connection
220V AC power supply is connected to the PVC IP65 electrical box. Hydraulic system pressure is set in both raise and lower directions. CPU microprocessor parameters — motor protection timing, auto shut-off, automatic closing direction, and timer — are programmed.
Peripheral Device Connection & Group Relay Card (Multi-Unit)
All specified peripheral devices — photocells, traffic lights, flashing lamps, loop detectors, remote control receivers, proximity card readers, and timers — are connected to the CPU via removable cable connectors. For multi-unit installations, group relay cards are connected between all CPU units.
Phosphorescent Film & Warning Light Verification
Phosphorescent warning film application and nighttime red LED flashing warning light activation are verified. 50-watt fixture lamp operation in both day and night modes is confirmed.
Operational Testing & Handover
Complete operational testing across all raise, lower, manual override, power failure key descent, multi-unit simultaneous operation, and redundant failure operation functions is conducted. CE, TSE, ISO, and AIDA certification documentation is compiled into the project handover package.
DEPLOYMENT SCENARIOS & USE CASES
Madoors USA Gaff Barrier Mini Road Blockers are specified for compact, floor-embedded high-security vehicle access control applications.
- Indoor parking facility vehicle access control barriers
- Commercial building underground parking entrance control
- Government facility vehicle access control mini blockers
- Hotel and hospitality facility parking access control
- Shopping center parking entrance compact barriers
- Office building basement parking access control
- Airport terminal indoor vehicle access control
- Bank and financial institution vehicle access control
- Corporate headquarters parking access management
- Hospital and healthcare facility parking barriers
- Educational institution parking access control
- Covered commercial facility vehicle access barriers
- Embassy and diplomatic compound vehicle access control
- Government building indoor vehicle access management
- Any constrained floor space requiring compact vehicle blocking
- Category: Road Blocker