A Practical Explainer for Facility Leaders and Security Specialists

Modern sites rarely rely on a single barrier. Gates, doors, fences, CCTV, intercoms, and access control form a layered system. In that system, gate locks and operators are the “muscle” that physically opens/closes the perimeter, while access control is the “brain” that decides who gets in.

This page explains how commercial Automatic gate systems, magnetic locks, and electric strikes fit together, what good looks like in real deployments, and the design trade-offs that matter to both non-technical stakeholders and security professionals.

What are we talking about?

In commercial security, “gate locks & operators” typically covers:

  • Gate operators: motors and control electronics that move a swing or sliding gate.
  • Locking hardware: devices that keep the gate closed until the system authorises release.
  • Controls & safety: sensors, interlocks, emergency release, and rules that prevent injury and misuse.
  • Integration: connecting the gate to credentials (cards/mobile), intercom, licence plate recognition (LPR), schedules, and alarms.

A useful mental model:

  • Operator = moves the gate
  • Lock = resists forced entry and wind load, and holds the gate shut when operator is idle
  • Access control = grants/denies and records events (audit trail)

Why gates need both an operator and a lock

A gate operator can close a gate, but closing is not the same as securing. Many operators are not designed to be the primary security holding element under attack or sustained force. Commercial systems usually pair the operator with dedicated locking—selected to match:

  • Threat level (opportunistic trespass vs targeted attack)
  • Usage pattern (high-cycle carpark vs occasional service gate)
  • Safety and egress requirements
  • Power-out behaviour expectations

The three lock concepts you’ll see most often

1) Electric strikes (common on pedestrian gates and some gate frames)

An electric strike is a powered strike plate that releases a latch/bolt when signalled. It typically works with a mechanical latchset (or gate latch hardware). In access control guides, electric strikes are described as compatible with most systems and can often be configured for fail-secure or fail-safe depending on model and requirements (Kisi – Electronic locks guide).

Commercial strengths

  • Often cost-effective for controlled entry points
  • Can preserve mechanical latching (helpful for security and alignment)
  • Can be selected/configured around outage requirements (fail-secure is common where perimeter must remain locked)

Watch-outs

  • Installation quality matters (alignment, frame prep, weatherproofing)
  • Correct choice of strike type and rating is important for gates exposed to vibration, misalignment, or wind

2) Magnetic locks (maglocks) (common on pedestrian gates, glass doors, and certain perimeter use cases)

A magnetic lock uses an electromagnet and an armature plate. When powered, it holds shut; when power is removed, it releases. Guides commonly describe maglocks as having no moving parts and being fail-safe (unlock on power loss) (Kisi – Electronic locks guide; Koorsen – Differences between electric strikes and maglocks).

Commercial strengths

  • Simple mechanical wear profile (few moving parts)
  • Useful where a traditional latch is difficult (certain door/gate designs)
  • Can deliver high holding force when correctly installed

Watch-outs

  • Because maglocks depend on power to remain locked, they need a serious approach to backup power and monitoring if perimeter security must persist during outages (Koorsen)
  • Egress and life-safety requirements must be engineered properly (release devices, fire integration where applicable)

3) Gate operator “locking” vs dedicated locking

Some operators provide a degree of holding/locking, but it’s often not the same as a dedicated lock. For many commercial perimeters, a dedicated lock (electric strike, maglock, or specialty gate lock) is used to meet forced-entry resistance requirements and reduce reliance on operator gearbox holding.

Fail-safe vs fail-secure: the decision that drives everything

This is the most misunderstood topic by non-specialists, and the most important for specialists.

  • Fail-safe: unlocks when power is lost (typical for maglocks)
  • Fail-secure: stays locked when power is lost (common for electric strikes; some can be set either way)

This distinction is clearly explained in access control lock comparisons (Koorsen; Kisi).

Balanced commercial view

  • Security-led sites (high-value storage, critical infrastructure, certain industrial yards) often prefer fail-secure on the perimeter, paired with carefully designed emergency egress provisions.
  • Life-safety-led openings (some internal doors, certain evacuation routes) may require fail-safe behaviour with compliant release mechanisms and emergency integration.

You usually do not choose this in isolation; you choose it per opening, based on risk, safety obligations, and operational tolerance.

How Automatic gate systems work in practice

A typical commercial flow looks like:

  1. Credential or request: card/mobile credential, keypad PIN, intercom call, LPR read, or scheduled opening.
  2. Decision: access control system checks permission and time rules; may also check anti-passback or occupancy rules.
  3. Release: lock releases (e.g., electric strike energises, or maglock power is removed).
  4. Motion: operator opens gate; safety sensors confirm path is clear.
  5. Supervision: door/gate position switch and latch/lock status feed events back for monitoring and alarms.
  6. Close & re-secure: operator closes; lock re-engages; system logs completion.

Specialists typically insist on step 5 (supervision) because it changes the posture from “we think it’s secure” to “we can prove the state and alert when it’s not”.

Engineering considerations that separate “works” from “works well”

Safety controls are not optional

Automatic movement introduces safety risk. Commercial deployments should include sensors appropriate to the gate type (photo beams, safety edges, obstruction detection). This is as much about business risk (injury, downtime, liability) as it is about compliance.

Gate “door hardware” realities

Gates are exposed to:

  • Weather, dust, corrosion
  • Ground movement and misalignment
  • Vibration and vehicle strike risk

This is why hardware choice (and installer capability) often dominates outcome more than the brand of software.

Power and resilience

Because electronic locks and operators depend on power, resilience design is central:

  • Battery backup/UPS sized for realistic cycles during outage
  • Safe and secure behaviour during partial failures
  • Monitoring (power supply faults, forced/held open alarms)

Maglocks, in particular, demand a clear outage plan due to their inherent fail-safe nature (Koorsen).

When to choose magnetic locks vs electric strikes

Magnetic locks may be a better fit when:

  • You need simpler mounting on certain openings
  • High-cycle use is expected and you want low mechanical wear (few moving parts) (Kisi)
  • You prefer fail-safe for safety reasons and can fund resilient power plus monitoring

Electric strikes may be a better fit when:

  • You want the opening to remain locked during power loss (fail-secure designs) (Kisi)
  • You can leverage existing mechanical latching hardware
  • You want a familiar commercial pattern for controlled entry while preserving free egress (common in many building contexts) (Koorsen)

In many sites, you will use both, depending on gate/door type and risk zoning.

What security specialists will ask

  • What’s the threat model and required delay time?
    “We’ve classified openings by risk zone and aligned holding/locking hardware accordingly.”
  • What’s the power-out posture?
    “Perimeter remains secure (fail-secure) with controlled emergency override; internal life-safety exits behave fail-safe as required.”
  • Is the gate state supervised and alarmed?
    “We have gate position, lock/strike status where available, and ‘forced open/held open’ alarms into monitoring.”
  • How do we prevent tailgating and vehicle ‘piggyback’?
    “We use timed opening, loops, photo beams, and transaction logic; we log exceptions for review.”
  • How does this integrate with the wider system?
    “Events and video are correlated; intercom triggers call flows; credentials are centrally governed.”

Operational and cost considerations

  • Reliability and maintenance: Gates are mechanical systems; budget for scheduled servicing (rollers, hinges, alignment, weather seals) and for replacing high-wear components.
  • Downtime cost: A failed vehicle gate can stop operations or create safety issues. Design with manual override and clear fault response procedures.
  • Compliance and auditability: Access logs and alarm events help investigations and can support compliance obligations.
  • Total cost of ownership: Hardware that is cheaper upfront but fails often (or causes safety incidents) is not economical.

Summary: practical guidance for a commercial deployment

  • Treat Automatic gate systems as a security control plus a safety system, not just convenience.
  • Choose magnetic locks when the opening type and safety posture suit fail-safe behaviour and you can engineer resilient power and monitoring.
  • Choose electric strikes when you want robust mechanical latching and the option of fail-secure operation for perimeter integrity during outages.
  • Design for supervision, resilience, and maintainability from day one.

References