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Motorized Automatic Chain Barrier
The Madoors USA Motorized Automatic Chain Barrier is a highly technological automated chain barrier and bollard system providing vehicle access control across openings up to 25 meters wide using only two pillars and a single 9mm chain — offering a distinctive, imposing alternative to traditional barrier arms and standard bollards for private and public parking delimitation, driveway access control, and any application requiring architecturally compliant automated vehicle exclusion across wide openings. With an 8 to 11 second operation speed, 60 cycles per hour maximum duty cycle, automatic closing after preset time, 230VAC or low-voltage motor options, complete radio gear, and photoelectric safety beams as standard, the Madoors USA chain barrier combines practical access control functionality with a design that complements the most demanding architectural contexts.
TECHNICAL SPECIFICATIONS
The Madoors USA Automatic Chain Barrier system consists of a Master Bollard with integrated control panel and motor drive, a Slave Bollard with counterweights providing the chain tension and support at the opposite end of the opening, a 9mm chain suitable for up to 25-meter opening spans, complete radio gear for wireless remote operation, and photoelectric beam safety sensors. A floor channel between the bollards is installed to protect the lowered chain — preventing the chain from being a trip hazard and protecting it from vehicle tire contact when in the lowered pass-over position.
The Master Bollard houses the pre-programmed control panel with space for an internal battery backup kit, providing continued automatic operation during mains power failure. The control panel casing is manufactured from high-quality galvanized plate with powder coating — providing both long-term corrosion resistance and a professional visual appearance suited to architectural and commercial installation environments.
Maximum chain width: 25 meters — the widest single-chain barrier span available, covering parking lots, private driveways, commercial facility entrances, and any wide-opening access control application with only two bollard installation positions. Chain operation speed: 8 seconds standard. Maximum duty cycle: 60 cycles per hour. Power supply: 230VAC mains or low-voltage motor — selectable based on available infrastructure and installation preference.
Automatic closing after a preset time is adjustable by a trimmer within the control panel — allowing the auto-close delay to be set to match the specific vehicle throughput and security requirements of each installation. Manual chain unfastening device provides emergency chain release without power. Slowdown speed regulation ensures smooth chain deceleration at the end of each raise and lower cycle — preventing mechanical shock and chain wear from abrupt stops at the travel limits.
KEY FEATURES
25-Meter Maximum Width — Two Pillars & Single Chain
The defining capability of the Madoors USA Automatic Chain Barrier is the 25-meter maximum opening span achievable with only two bollard pillars and a single 9mm chain. This exceptional span capability covers parking lots, private estate entrances, commercial facility forecourts, and any wide access control application that would require multiple barrier arms, multiple bollards, or a wide-format gate in alternative access control systems — dramatically reducing installation cost, civil works, and visual complexity for wide-opening applications.
Alternative to Barrier Arms & Standard Bollards
The chain barrier presents a more imposing physical and visual deterrent than a standard bollard — the continuous chain spans the full opening width, providing a visible barrier that clearly communicates vehicle exclusion to approaching drivers — while offering more architectural flexibility and visual character than a conventional painted barrier arm. The chain format is equally suitable for private residential driveways, commercial parking facilities, public parking areas, and architecturally sensitive environments where conventional barriers would be visually inappropriate.
Architecturally Compliant Design — All Contexts
The galvanized powder-coated bollard construction and chain format are designed to comply with the most demanding architectural contexts — providing a vehicle access control system that integrates visually with premium residential, commercial, and institutional environments without the industrial appearance of conventional barrier arm and post systems. Design compliance with demanding architectural contexts makes the chain barrier the preferred specification for high-end residential compounds, boutique commercial properties, and heritage environment parking management.
Pre-Programmed Control Panel — Battery Backup Space
The pre-programmed control panel within the Master Bollard housing provides quick installation with minimal site programming — standard operation parameters are pre-configured for immediate use, with adjustable trimmer settings for site-specific auto-close timing customization. Internal battery backup kit space ensures continued automatic operation during mains power failure without requiring external battery cabinet installation.
Automatic Closing — Adjustable Preset Time
Automatic closing after the preset time — fully adjustable by the control panel trimmer — ensures that the chain returns to the raised blocking position after each authorized vehicle pass without requiring a manual close command from the operator. Adjustable auto-close timing allows the delay to be matched to the average vehicle length and approach speed of the specific facility, ensuring complete vehicle clearance before chain rise while minimizing the open period that allows unauthorized vehicle tailgating.
Slowdown Speed Regulation — Smooth Operation
Slowdown speed regulation decelerates the chain smoothly as it approaches the fully raised and fully lowered positions — eliminating the mechanical shock of abrupt stops at the travel limits that would accelerate chain and mechanism wear at high cycle rates. Smooth operation is both an operational reliability feature — extending mechanism service life — and an aesthetic quality feature for architecturally sensitive installation environments where mechanical noise and abrupt movement are undesirable.
9mm Chain — Robust Drive-Over Capability
The 9mm chain is robust when in the lowered position — vehicles can drive over the chain in the floor channel without chain damage or vehicle tire damage. This drive-over robustness in the lowered position is the operational requirement that distinguishes a practical vehicle access chain barrier from decorative chain elements that would be damaged by vehicle contact. The floor channel between the bollards protects the lowered chain from direct tire contact, extending chain service life at high-traffic access control positions.
Complete Radio Gear & Photoelectric Safety Beams
Complete radio gear is included as standard — providing wireless remote operation of the chain raise and lower functions from a remote control transmitter without fixed-wire control infrastructure. Photoelectric safety beams provide vehicle and obstacle detection — preventing chain rise while a vehicle or person is detected in the opening, eliminating the contact risk between the rising chain and any vehicle that has not fully cleared the barrier position.
60 Cycles Per Hour — Active Access Control
The 60 cycles per hour maximum duty cycle supports active vehicle access control at busy parking facility entrances, commercial property driveways, and residential compound access points — providing continuous automated operation across the full range of realistic vehicle throughput rates without motor or mechanism overload.
Manual Chain Unfastening — Emergency Access
The manual chain unfastening device allows the chain to be released from the bollard mechanism without electrical power — providing emergency vehicle access and evacuation capability during power failure and system fault scenarios. Manual unfastening maintains life safety access and fire emergency vehicle access capability regardless of barrier system electrical status.
ASSEMBLY & INSTALLATION SEQUENCE
Site Assessment & Opening Width Confirmation
The opening width — up to 25 meters — Master and Slave Bollard installation positions, floor channel routing between the bollards, power supply position — mains 230VAC or low-voltage — and auto-close timing requirement are confirmed.
Bollard Foundation Installation
Master and Slave Bollard foundation positions are excavated and concrete-set to the specified depth. Electrical supply conduit from the mains connection to the Master Bollard position and floor channel routing conduit between bollard positions are installed during foundation works.
Floor Channel Installation
The floor channel protecting the lowered chain is installed between the Master and Slave Bollard positions — set flush with the surrounding surface for smooth vehicle drive-over and pedestrian passage.
Master Bollard Installation & Control Panel Connection
The Master Bollard with integrated control panel is installed on the cast foundation. Mains 230VAC or low-voltage power supply is connected to the control panel. Battery backup kit is installed in the reserved internal space.
Slave Bollard & Counterweight Installation
The Slave Bollard with counterweights is installed on the opposite foundation position. Chain tension and counterweight balance are adjusted for smooth, consistent chain raise and lower across the full 25-meter span.
Chain Installation & Floor Channel Routing
The 9mm chain is connected between the Master and Slave Bollards and routed through the floor channel in the lowered position. Chain length, tension, and floor channel engagement are verified for correct raised and lowered positions.
Radio Gear & Photoelectric Beam Installation
Radio control receivers are connected within the Master Bollard control panel. Remote control transmitters are programmed and tested. Photoelectric safety beams are installed at the specified positions and beam alignment is verified across the opening width.
Auto-Close Timing, Speed Regulation & Testing
Auto-close preset time is set by the control panel trimmer. Slowdown speed regulation at raise and lower limits is calibrated. Complete operational testing across all remote control, auto-close, safety beam, and manual unfastening functions is conducted at the 60 cycles per hour maximum duty rate.
DEPLOYMENT SCENARIOS & USE CASES
Madoors USA Motorized Automatic Chain Barriers are specified for any vehicle access control application requiring wide-span automated chain barrier capability in an architecturally compliant design.
- Private residential driveway and estate entrance control
- Parking lot and car park entrance chain barriers
- Commercial property forecourt vehicle access control
- Hotel and hospitality property parking access barriers
- Corporate headquarters and office complex parking control
- Residential compound and gated community access management
- Shopping center and retail park parking access control
- Hospital and healthcare facility parking entrance barriers
- University and educational campus parking access control
- Municipal and public parking area automated barriers
- Sports facility and stadium parking access management
- Religious institution and community facility parking control
- Heritage and conservation area vehicle access management
- Boutique commercial and retail property entrance barriers
- Any wide-opening application requiring two-pillar single-chain barrier
- Category: Chain Barriers