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The Madoors USA MDRS-Manual-300 Series Non-Motorized Mechanical Full Height Double Turnstile is a manual full-height turnstile system providing high-security one-person-per-pass pedestrian access control without requiring security guards — ideal for areas subject to strict inspection where the physical barrier must completely prevent prohibited passage without electronic or motorized assistance. With 3-arm triangular rotor at 120-degree spacing or 4-arm square rotor at 90-degree spacing, CNC-machined mechanism, non-contact position sensor technology, hydraulic damper with adjustable damping rate, automatic centering cam mechanism, corrosion-protected aluminum core, and 1.5mm stainless steel arms and body, the MDRS-Manual-300 operates without problems for many years — including outdoor installations. Two-way double turnstile configurations allow one unit to serve simultaneous entrance and exit lanes.
TECHNICAL SPECIFICATIONS
The MDRS-Manual-300 is designed for one-way passage — the rotor arms push freely in the authorized direction under body pressure and lock positively in the reverse direction, preventing passage in the unauthorized direction. Only one person can pass per arm rotation — the arm spacing of the 3-arm configuration at 120 degrees and the 4-arm configuration at 90 degrees physically prevents more than one person from passing per cycle. This mechanical one-person-per-pass enforcement operates without any electronic authorization requirement — the turnstile provides continuous single-file directional flow control as a purely mechanical system.
The mechanism is processed on CNC machines — providing the dimensional precision required for consistent, smooth arm rotation, positive locking in the blocked direction, and automatic centering after each pass cycle. Non-contact position sensor technology monitors arm position without the wear and contact degradation of mechanical limit switches — maintaining reliable position sensing throughout the long service life of the mechanism.
The hydraulic damper with adjustable damping rate controls the arm rotation speed — providing smooth, controlled arm movement without the abrupt stopping and rebounding that undamped turnstile arms produce. The adjustable damping rate allows the arm speed behavior to be tuned to the specific traffic flow characteristics of each installation — slower damping for more deliberate individual passage, faster damping for higher throughput applications.
Automatic centering by cam mechanism returns the arms to the locked home position after each pass — the arm does not remain in a partially rotated position that would allow a following person to push through without completing a full authorized rotation cycle. This automatic centering is the mechanical feature that ensures every passage requires a complete arm rotation.
The arms and body are manufactured from 1.5mm stainless chrome-nickel steel — providing corrosion resistance and structural durability for outdoor installation and heavy-use indoor applications. The corrosion-protected aluminum core eliminates the galvanic corrosion at the steel-to-steel interfaces that affects all-steel mechanism construction.
In emergency situations, a key override allows passage in the reverse direction — providing emergency egress capability without requiring the electronic systems that motorized turnstiles use for emergency release.
KEY FEATURES
Full Height — Complete Unauthorized Passage Prevention
The full height construction completely prevents climbing over, ducking under, or passing beside the turnstile arms — the barrier extends from the floor to above head height, physically blocking every bypass route that shorter turnstile configurations leave open. This complete physical barrier allows the turnstile to operate in areas without security guards — the barrier enforces single-file authorized passage regardless of whether a guard is present to observe.
No Motor Required — Reliable Maintenance-Free Operation
The completely mechanical non-motorized operation eliminates all electronic failure modes — no motor to burn out, no control board to fail, no power supply to interrupt. The CNC-machined mechanical mechanism, double ball bearing upper and lower shaft bearings, and hydraulic damper provide reliable long-term operation without the maintenance requirements of motorized systems. The bearing specification specifically confirms no noise and no locking throughout outdoor use for many years.
3-Arm & 4-Arm Rotor Options — Application Matching
The 3-arm triangular rotor at 120-degree arm spacing provides the larger individual passage arc preferred for comfortable single-person passage at standard pedestrian throughput applications. The 4-arm square rotor at 90-degree spacing provides more frequent arm positions for tighter access control at applications where the shorter arc between arms provides additional physical security. Both configurations enforce the one-person-per-pass principle — the rotor geometry is selected to match the throughput and security requirements of each installation.
Hydraulic Damper — Smooth Controlled Arm Movement
The hydraulic damper with adjustable damping rate provides smooth, controlled arm rotation without abrupt mechanical stops that would create impact noise and mechanical stress at the arm end positions. The adjustable rate allows fine-tuning of the arm behavior for different installation environments — heavier damping for premium architectural environments where quiet operation is important, lighter damping for high-throughput applications where faster arm cycling is the operational requirement.
Stainless Steel Construction — Indoor & Outdoor Durability
The 1.5mm stainless chrome-nickel steel arms and body provide the corrosion resistance required for permanent outdoor installation in all weather conditions — rain, snow, humidity, and UV exposure do not degrade the stainless steel surface or structural integrity. This outdoor durability directly enables the full range of outdoor access control applications — stadium entrances, park and attraction access points, transport hub outdoor areas, and any outdoor pedestrian checkpoint.
Key Emergency Override — Reverse Direction Egress
The key override for emergency reverse direction passage provides the life safety egress capability required for full-height turnstiles at access points that may be used for emergency evacuation — the key allows the turnstile to be opened in the exit direction during an emergency without requiring power, electronic systems, or any modification to the permanent installation.
Double Two-Way Configuration — Simultaneous Entry & Exit
The double turnstile design allowing one rotor for entry direction and one rotor for exit direction in the same unit provides a complete entrance and exit access control solution from a single installation position — both directions of pedestrian flow are managed simultaneously in the same footprint. This double configuration directly reduces the number of turnstile installations required at access points with bidirectional traffic.
Easy Assembly & Disassembly — Portable Deployment
The easy assembly and disassembly design allows the turnstile to be dismantled and shipped to a new location — providing the portability required for temporary access control at events, construction sites, and any application where the turnstile must be relocated when the access control requirement changes. This relocation capability directly extends the operational value of the turnstile investment beyond a single fixed installation.
CNC-Machined Mechanism — Long-Term Precision Performance
The CNC-machined mechanism components provide the dimensional precision required for consistent one-person-per-pass enforcement, smooth arm rotation, and positive directional locking throughout the full service life of the turnstile. CNC machining eliminates the tolerance variation of conventionally manufactured mechanism components — ensuring that every manufactured unit performs consistently to the same specification.
Ceiling Lamp — Dark Environment Standard Equipment
The ceiling lamp on the top of the turnstile as standard equipment provides illumination of the access control point in low-light environments — improving visibility for credential readers, access control equipment, and security cameras at the turnstile position without requiring separate lighting installation.
ROTOR CONFIGURATION COMPARISON
3-Arm Triangular Rotor — 120-degree arm spacing. Larger individual passage arc. Standard pedestrian throughput applications. Comfortable single-person passage geometry.
4-Arm Square Rotor — 90-degree arm spacing. More frequent arm locking positions. Higher-security access control. Shorter individual passage arc for tighter physical control.
MANUFACTURING OPTIONS
Stainless Chrome-Nickel Steel — Premium corrosion-resistant finish for outdoor and high-visibility indoor installations. Maintains bright surface appearance without painting or maintenance.
ST 37 Steel with Electrostatic Powder Paint — Cost-effective specification for indoor and sheltered installations. Any RAL color available for coordination with surrounding architecture.
40 × 40mm Profile Arms — Square section arm profile for standard applications.
50mm Diameter Pipe Arms — Round section arm profile for applications where the round profile is preferred aesthetically or for specific structural requirements.
ASSEMBLY & INSTALLATION SEQUENCE
Installation Position & Configuration Selection
Location, one-way or two-way double configuration, 3-arm or 4-arm rotor, material — stainless or powder-coated — arm profile, emergency key requirement, and ceiling lamp activation are confirmed.
Base Fixing
The turnstile base plate anchor positions are marked and fixed to the floor surface. No excavation or foundation works are required for standard indoor installation.
Turnstile Body & Mechanism Assembly
The turnstile body and CNC-machined mechanism are assembled at the installation position. Upper and lower shaft ball bearing installation and vertical alignment are verified.
Hydraulic Damper Setting
The hydraulic damper is set to the specified damping rate for the installation's traffic flow and operational requirements. Smooth arm rotation and automatic centering after each pass are verified.
Position Sensor & Ceiling Lamp Connection
Non-contact position sensor operation and arm position reporting are confirmed. Ceiling lamp is connected to the power supply and illumination is verified.
Emergency Key Override Testing
Emergency key reverse direction passage is tested and confirmed. Key reset to normal one-way operation is verified.
Operational Testing & Handover
Complete one-person-per-pass enforcement, directional blocking, automatic centering, hydraulic damping, and double-direction configuration operation are tested. Installation handover documentation is completed.
DEPLOYMENT SCENARIOS & USE CASES
Madoors USA MDRS-Manual-300 Non-Motorized Full Height Double Turnstiles are specified for any high-security pedestrian access point requiring mechanical one-person-per-pass control without electronic or motorized systems.