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The Madoors USA MDRS-MANUAL-300-SINGLE Non-Motorized Mechanic Full Height Turnstile is a high-quality, aesthetic stainless steel manual full-height turnstile system — available in 3-arm and 4-arm 180-degree rotation configurations for one-way passage control without any motor, electronic components, or power supply requirement. Suitable for personnel access, cafeteria, PDKS time-and-attendance, security, and all access control turnstile applications with intensive input and output circulation, manufactured from stainless chrome-nickel steel or ST 37 steel with electrostatic powder paint in 40×40mm profile or 50mm diameter pipe construction, double ball bearing upper and lower vertical shafts for completely noise-free outdoor long-service operation, emergency key override for opposite-direction entry, audible and light passage warnings, and easy assembly and disassembly for relocation — the MDRS-MANUAL-300-SINGLE is the most reliable and maintenance-free full-height turnstile for any application where motorized systems are unnecessary.
TECHNICAL SPECIFICATIONS
The Madoors USA MDRS-MANUAL-300-SINGLE operates on a completely mechanical manual principle — there are no motors, no electronic control boards, no power supply connections, and no software in the standard configuration. The turnstile is operated entirely by the body force of the pedestrian pushing the arm in the authorized direction — the mechanical mechanism allows rotation in the authorized direction and blocks rotation in the opposite direction. This purely mechanical operation eliminates every electronic and electrical failure mode, providing the lowest possible probability of system failure and the simplest possible maintenance profile.
The 3-arm configuration provides 120-degree arm spacing with 180-degree rotation capability — the arms rotate through 120 degrees per pass in the authorized direction. The 4-arm configuration provides 90-degree arm spacing — the shorter arm arc between locked positions provides tighter physical control per rotation cycle. Both configurations enforce the one-person-per-pass principle — the arm spacing physically prevents more than one person per rotation.
The upper and lower shafts use double ball bearing vertical bearings — the double ball bearing specification provides smooth, frictionless rotation throughout the service life with significantly lower bearing wear than single-bearing alternatives. The confirmed no-noise and no-lock performance throughout outdoor long-service use directly confirms the double ball bearing quality — bearing noise and progressive stiffening are the primary signs of bearing wear in turnstile mechanisms, and the double ball bearing construction prevents both throughout the full service life.
Manufacturing material options cover the full range of application requirements. Stainless chrome-nickel steel provides the premium corrosion resistance for outdoor installation in all weather conditions, coastal environments, and industrial atmospheres. ST 37 steel with electrostatic powder paint provides the economical color-matched option for indoor and sheltered installations. Both material options are available in 40×40mm square profile or 50mm diameter round pipe arm construction — the profile selection matched to the architectural preference of each installation.
Emergency key override allows authorized personnel to unlock the turnstile for opposite-direction passage — providing the emergency egress and maintenance access capability required without the electronic emergency release systems of motorized turnstiles.
Audible and light warnings at passage provide the access status indication required for attended access control positions — the warning confirms authorized passage, denied access, and direction violation to both the user and the attending security officer.
KEY FEATURES
No Motor — No Electronics — Zero Failure Probability
The completely non-motorized, non-electronic mechanical construction eliminates every electronic and electromechanical failure mode — there is no motor to burn out, no control board to fail, no power supply to interrupt, no software to crash, and no sensor to malfunction. The mechanical turnstile fails only through the wear and physical damage failure modes that apply to all mechanical systems, and these occur at significantly lower frequency and with longer warning than electronic failures. This zero-electronic-failure-probability characteristic directly provides the most reliable long-term access control at unattended or remotely supervised positions.
Double Ball Bearing Shafts — No Noise, No Lock, Outdoor Long Life
The double ball bearing upper and lower vertical shaft bearings provide the smooth, noise-free rotation that confirms quality mechanical construction — the confirmed no-noise and no-lock operation throughout outdoor use for many years directly confirms that the bearing specification is matched to the service life requirement of a permanently installed outdoor turnstile. Double ball bearings distribute the shaft load across a greater bearing surface area than single bearings, directly reducing the wear rate and extending the noise-free service life.
3-Arm & 4-Arm Options — Comfort & Security Selection
The 3-arm 120-degree arc and 4-arm 90-degree arc options provide the choice between the wider, more comfortable pedestrian transition of the 3-arm configuration and the tighter physical security control of the 4-arm configuration — the same MDRS-MANUAL-300-SINGLE platform serves both comfort-optimized cafeteria and personnel access applications and security-optimized access control applications through the arm configuration selection.
One-Way Design — Opposite Direction Blocked
The one-way design that physically blocks the opposite direction provides the definitive access control function without any electronic authorization — the mechanical geometry of the arm locking mechanism prevents reverse rotation while allowing forward rotation under body pressure. This passive mechanical directional control operates continuously without power, without signals, and without maintenance, providing one-way access control at any location regardless of power infrastructure.
Emergency Key Opposite-Direction Override
The emergency key override for opposite-direction passage provides the essential emergency egress and maintenance access capability of the MDRS-MANUAL-300-SINGLE — in a genuine emergency or for maintenance access, the key unlocks the mechanical direction block, allowing passage in the normally blocked direction without requiring any electronic release. This key override is the appropriate emergency provision for a manual mechanical turnstile where the electronic emergency signal release of motorized systems is not available.
Easy Assembly & Disassembly — Relocatable Deployment
The easy assembly and disassembly design allows the complete turnstile to be dismantled and shipped to a new location — providing the portability required for construction sites, temporary event access control, leased premises, and any application where the turnstile may need to move when the access control requirement changes. This relocation capability directly extends the operational value of the turnstile investment beyond a single fixed installation.
Intensive Input & Output Circulation Capability
The suitability for intensive input and output circulation confirms the MDRS-MANUAL-300-SINGLE as engineered for the highest-frequency pedestrian access control applications — cafeteria peak hour throughput, factory shift change access, and public facility peak hour pedestrian flow all fall within the intensive circulation design intent. The double ball bearing construction is the specific mechanical provision that enables intensive use without premature wear.
Audible & Light Warnings — Attended Access Support
The audible and light warning capability at passage provides the immediate access status indication required for security officer-attended positions — the officer receives confirmation of every authorized passage, denied access attempt, and direction violation without requiring visual monitoring of the turnstile arm position at all times. This warning system directly supports the security officer's attention management at busy multi-lane entrance positions.
CONFIGURATION OPTIONS
3-Arm Stainless Chrome-Nickel
120-degree arc, premium corrosion resistance, outdoor and all-weather. Standard comfort-optimized specification.
4-Arm Stainless Chrome-Nickel
90-degree arc, premium corrosion resistance, tighter security control. Outdoor security-optimized specification.
3-Arm ST 37 Powder Coat
120-degree arc, RAL color finish, economical indoor specification.
4-Arm ST 37 Powder Coat
90-degree arc, RAL color finish, economical indoor security specification.
40×40mm Square Profile
Standard arm cross-section. Appropriate for standard architectural environments.
50mm Round Pipe
Round arm cross-section. Preferred for the traditional turnstile aesthetic and specific architectural preferences.
ASSEMBLY & INSTALLATION SEQUENCE
Site Assessment & Configuration Selection
One-way direction, 3-arm or 4-arm configuration, material — stainless or powder coat — arm profile — square or round — audible and light warning requirement, and emergency key override direction are confirmed.
Floor Anchor Installation
Base plate anchor bolt positions are marked and drilled. Anchor bolts are installed to the confirmed embedment depth. No electrical supply or conduit installation is required for the standard manual configuration.
Turnstile Body Installation
The turnstile body is positioned on the floor anchors and secured. Upper and lower shaft double ball bearing alignment and vertical shaft plumb are confirmed.
Arm Installation & Direction Verification Three or four arms are installed on the hub at the confirmed equal angular spacing. Rotation in the authorized direction under body pressure is confirmed free and smooth. Opposite direction blocking is confirmed positive.
Emergency Key Override Testing
Emergency key reverse-direction unlock and return to normal one-way operation are tested.
Audible & Light Warning Connection (Where Specified)
Audible warning and passage indicator light are connected and confirmed operational for authorized passage and direction violation events.
Operational Testing & Handover
Complete one-way passage, opposite direction blocking, double ball bearing noise-free rotation, emergency key, and audible/light warning are tested. Easy assembly/disassembly procedure is confirmed. Installation handover documentation is completed.
DEPLOYMENT SCENARIOS & USE CASES
Madoors USA MDRS-MANUAL-300-SINGLE Non-Motorized Full Height Turnstiles are specified for any one-way pedestrian access control position requiring reliable mechanical full-height control without power dependency.