Turnstile Mechanism and Control: Drive Options and Safety Logic

Turnstile Mechanism and Control: Drive Options and Safety Logic

A pedestrian turnstile combines a mechanical drive with a control logic that decides when the lane is open, how a passage is validated and what the equipment does when power or a fire alarm is involved. This page sets out the drive categories SUNFRE supplies, the product families that use them, and the standards that constrain how anti-tailgating and emergency behaviour may be designed. It is written for integrators and specifiers who need to match a mechanism to a site rather than for readers looking for a single model. A wider introduction is available in the turnstile access control guide.

Drive options and product families

SUNFRE’s turnstile drive categories include DC brushless tripod turnstiles and DC servo motorised tripod turnstiles, and the company publishes a servo-motorised full-height turnstile core kit for partners that assemble or maintain full-height units. The pedestrian access control categories supplied by SUNFRE comprise flap barriers, tripod turnstiles, swing barriers, speedstile swing barriers and full-height turnstiles, each of which places different demands on the drive, on the lane width and on the reader that authorises a passage.

Specification range available

The table below describes the mechanism and control options at category level. Parameters that depend on cabinet dimensions, lane configuration or the reader protocol in use are confirmed against the selected model at the time of enquiry.

Tripod drive optionsDC brushless tripod turnstiles; DC servo motorised tripod turnstiles
Full-height optionServo-motorised full-height turnstile core kit (published as a component-level offering)
Pedestrian categoriesFlap barriers, tripod turnstiles, swing barriers, speedstile swing barriers, full-height turnstiles
Identification terminalsFingerprint, facial-recognition and RFID readers are supplied as separate access-control categories
Safety logic constraintAnti-tailgating is optional under EN 60839-11-1; fire-alarm fail-safe opening is mandatory under EN 13637 and NYC BC §1010.3

What the standards actually require

In EN 60839-11-1 Table 2, singularisation / anti-tailgating is optional (OP) at security levels 1–4, while dual access is mandatory (M) at level 4; no mainstream standard requires a turnstile to physically prevent tailgating. EN 13637 and NYC Building Code §1010.3 require turnstiles to fail-safe open on a fire alarm, a requirement that takes priority over anti-tailgating logic. Specifications that describe physical tailgating prevention as a mandatory function of the gate itself therefore misstate the standards; high-security sites achieve that outcome through interlocked doors, detection and supervision rather than by locking the mechanism against egress. Readers comparing vehicle-side protection logic can refer to the barrier gate anti-crush comparison.

Customisation boundaries

Configuration within the published categories covers the choice of drive, the product family, the lane arrangement and the identification terminal that is integrated with the installation. Requests concerning reader protocols, firmware branding, label language, enclosure finishes or dedicated tooling are to be confirmed with SUNFRE for the specific project, since the company does not publish a fixed list of controller-level or firmware-level options. Programmes of that kind are described in the OEM and ODM capability overview.

MOQ and sample policy

SUNFRE’s published commercial guidance states that standard models often carry a low minimum order quantity, that customised finishes or branded firmware require larger batches, and that buyers should confirm the MOQ per model and whether mixed-SKU containers are accepted. Sample availability and terms are confirmed on a per-model basis. The authoritative wording is on the minimum order quantity and lead time page.

Lead time range

Standard items may ship in 1 to 2 weeks, while customised OEM runs take longer, and the schedule must include buffer for freight, customs clearance and last-mile delivery. A written lead time is issued with the quotation after the mechanism category, reader integration and quantity have been settled, rather than quoted as a fixed interval on this page.

Documentation and certificate downloads

Product documentation is available through the SUNFRE products catalogue and the model-specific brochures that cover the barrier gate range. Certificates and test reports are available on request through the enquiry channel, where the documentation relevant to the destination market and to the applicable access-control standards can be identified for the selected model. Buyers should state any certification requirement when submitting the enquiry.

Related information and enquiries

Readers comparing vehicle-side mechanisms can review the barrier gate mechanism page, and those evaluating a supply partnership can consult the OEM and ODM capability overview and the access control applications overview. SUNFRE does not display public pricing; project requirements, quantities and destination markets should be submitted through the contact page for a quotation.

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