Side Mounted Swing Door Operator: Complete Guide

The side mounted swing door operator sits at a specific point in the gate automation spectrum: fast enough for high pedestrian flow gates, compact enough to mount discreetly on a single leaf, and smart enough to connect to a phone from the day it is installed. If your gate is a pedestrian entry, such as a garden gate, courtyard entry, or secondary access point alongside a main vehicle gate, this is the class of operator built for that application.

This guide covers everything you need to know before specifying a side mounted swing door operator: how the mechanism works, what the specifications mean in practical terms, how to select the right unit for your gate's weight and size, connectivity options, and installation requirements. All specifications cited are drawn directly from Open Bear's factory verified documentation.

What Is a Side Mounted Swing Door Operator?

A side mounted swing door operator is an automated drive unit that mounts on the side face of a gate post or frame, connecting directly to the gate leaf via a rigid arm. Unlike underground operators, which are buried beneath the gate hinge, a side mounted unit is surface fitted, typically at post height, with the motor body running parallel to the gate. The arm extends horizontally from the motor housing to the gate leaf, pushing the leaf through its arc when the motor engages.

Side mounted distinguishes this installation type from overhead, top mounted, and concealed, floor mounted configurations. Side mounting offers the simplest installation path. There is no excavation, overhead track, or structural modification to the gate or post. The motor unit can be retrofitted to most existing pedestrian gates without requiring changes to the gate hardware, provided the gate swings freely on its hinges and the post is structurally sound.

Open Bear's side mounted swing door operator has a slim cylindrical body measuring 89.6 mm × 355.7 mm × 105.7 mm that mounts with minimal visual intrusion. The unit weighs 6.4 kg, making it one of the lightest swing operators in the commercial range. Bluetooth and WiFi are built directly into the unit. CE certification confirms compliance with European product safety and electromagnetic compatibility standards.

How It Works: The Mechanism

When the controller signals open, the servo motor engages and drives the arm through its extension travel, pushing the gate leaf outward or inward, depending on the gate's hinge direction. The arm is rigid and does not flex during the cycle.

As the gate approaches the fully open position, the servo encoder feeds position data back to the controller, which decelerates the motor before the gate reaches the physical stop. The gate arrives at the full open position smoothly and without impact.

Open Bear's side mounted unit uses a permanent magnet synchronous servo motor, the same motor architecture used across the full Open Bear range. Servo control means the motor adjusts its torque output in real time based on resistance detected through the encoder.

If the gate encounters an obstacle, such as a person, animal, or wheel, the obstacle detection circuit triggers a stop or reversal before the force threshold for injury is reached. This is not a simple current overload cutoff. It is an active position and force monitoring system.

The angular speed of the side mounted operator is 69.7 degrees per second, the fastest swing speed in Open Bear's range. For a gate swinging through a standard 90 degree arc, that is approximately 1.3 seconds from fully closed to fully open.

Combined with a maximum gate weight of 200 kg and leaf length of 1.5 metres, this unit is optimised for fast, frequent pedestrian gate cycles rather than slow movement of heavy commercial gates.

Key Specifications Explained

Angular Speed: 69.7°/s

Angular speed, measured in degrees per second of gate travel, determines how fast the gate opens.

At 69.7°/s, the Open Bear side mounted unit is the fastest swing operator in the range and fast relative to the broader market for this gate class. Fast opening reduces queuing at pedestrian entry points, which is important for gated community access, sports facility entrances, and sites with sustained foot traffic during peak periods.

Maximum Gate Weight: 200 kg

200 kg is the maximum rated leaf weight for this operator.

Most pedestrian gates fall well below this threshold. A standard timber or aluminium pedestrian gate leaf weighs 40 to 80 kg, a steel security gate weighs 80 to 150 kg, and a glass and steel architectural gate can weigh up to 180 kg.

The 200 kg rating provides comfortable headroom for almost all pedestrian gate specifications without entering the weight class that requires a heavy duty operator.

Motor Power: 60W

60W is a compact, low power motor specification designed for pedestrian swing gate applications.

At 60W, the motor draws minimal current, generates minimal heat under sustained operation, and imposes a low load on the site's electrical supply.

For remote installations where power is drawn from a solar system or battery backup, the 60W draw is an important logistical advantage over larger operators.

Output Torque: 40 Nm

40 Nm is the rated output torque and is sufficient to drive a 200 kg gate leaf from rest through its full arc, including the static inertia of the gate weight, moderate wind loading, and the resistance of the gate seal if fitted.

For gates with mechanical resistance, such as tight seals, slightly binding hinges, or ground contact at the base of the leaf, confirm that the gate swings freely by hand before ordering. A gate that requires significant human effort to move manually will strain any operator.

Operating Temperature: -25°C to 70°C

The operating range of -25°C to 70°C covers the majority of the world's inhabited climate zones.

This range differs from the -35°C lower bound of Open Bear's vehicle gate operators. The side mounted unit is rated to a slightly narrower cold extreme.

For sites in northern Canada, Scandinavia, or Russia where winter temperatures reach -30°C or below, the heavy duty swing gate opener, rated to -35°C, is the appropriate specification.

CE Certification

CE marking on the side mounted operator confirms that the unit has been assessed against European product safety directives, including the Machinery Directive and the EMC Directive.

CE certification is a requirement for sale in the European Union and is increasingly referenced by buyers in other markets as an indication of product quality assurance and regulatory compliance.

Of Open Bear's six product lines, the side mounted operator is the one with CE certification confirmed at the time of publication.

Built In Connectivity: Bluetooth, WiFi, and Remote Control

Every Open Bear side mounted swing door operator includes Bluetooth, WiFi, and the RF remote control receiver built directly into the unit.

There is nothing to source separately, no hub to install, and no proprietary gateway required.

From the day the operator is commissioned:

• Phone control: Open and close the gate from a phone via the mobile app. Bluetooth provides local range, while WiFi allows remote operation when away from the property.
• RF remote controls: Two RF remote controls are included in the box. Additional remotes can be paired to the same receiver.
• Remote commissioning: Adjust motor parameters from a phone without standing at the gate. This is useful for installers fine tuning deceleration and stop positions after initial installation.
• Gate status monitoring: Check whether the gate is open or closed from the app at any time.

The integration of Bluetooth and WiFi as standard, rather than paid accessories, is a consistent feature across the Open Bear range. Building these features into the unit eliminates accessory compatibility concerns and reduces the total installed cost for the site owner.

Side Mounted vs. Top Mounted vs. Floor Mounted: Which Is Right?

The three swing gate operator installation types, side, top, and floor, each suit different gate configurations and aesthetic requirements.

Side Mounted

The simplest installation option. It is surface visible and suits retrofits and gates where post geometry allows lateral arm clearance. It is the best choice for most pedestrian gate applications.

Top Mounted

The operator mounts overhead on the gate frame or transom. This keeps the operator less visible from the front approach and is preferred for commercial glass doors and architectural entrances where a visible side mounted arm could affect the design.

Floor Mounted

The operator is concealed below the gate leaf and buried in the ground. This provides the most invisible installation but requires excavation and waterproofing.

For pedestrian gates on standard residential and commercial properties, side mounting is the practical default. It requires no excavation or overhead clearance modification and can typically be completed in 2 to 4 hours by a competent installer.

For guidance on top mounted or floor mounted configurations, see Open Bear's top mounted swing door operator or the floor swing door operator.

What's In the Box

The Open Bear side mounted swing door operator ships as a complete kit:

• Slim cylindrical motor unit: 89.6 × 355.7 × 105.7 mm, 6.4 kg.
• Swing arm: with adjustable connection bracket.
• 2 RF remote controls.
• Mounting hardware: all required fixings included.
• English installation manual: wiring diagram and parameter reference included.

Installation: What to Check Before You Start

Side mounted installation is the most accessible of the three swing gate operator types.

Gate Swing Freedom

The gate must swing through its full arc without binding, dragging on the ground, or contacting adjacent structures. Adjust hinges or gate hardware before fitting the operator.

Post Structural Integrity

The motor mounts to the gatepost. The post must be securely set in concrete. A surface fixed or loose post will not sustain the torque reaction.

Arm Clearance

The arm extends from the motor housing to the gate leaf. Confirm there is no obstruction in the arm's travel path at any point in the gate arc.

Power Supply

The controller requires 220V AC input. For remote or solar powered installations, confirm the supply can sustain the 60W motor draw plus controller overhead.

Hinge Rating

The gate hinges must be rated for the full leaf weight. On older installations, hinge replacement before fitting a new operator is standard practice.

Commissioning involves setting the open and close position parameters via the controller, verifying obstacle detection sensitivity, and pairing the remote controls and phone app.

The English manual includes a step by step parameter table with the required settings and adjustments.

Ideal Applications for a Side Mounted Swing Door Operator

• Pedestrian garden and courtyard gates: residential properties with a secondary access point alongside a main vehicle gate.
• Gated community secondary entries: foot traffic access for residents and visitors without vehicle gate activation.
• Sports facility and leisure centre entrances: high pedestrian throughput with fast open cycles.
• Commercial building side entrances: staff access points where a full commercial door system is not required.
• Retail courtyard and service entries: controlled access points with IC card or face recognition integration.

Frequently Asked Questions

What is the fastest open speed?

The Open Bear side mounted operator swings at 69.7 degrees per second, the fastest in the Open Bear swing gate range. A standard 90 degree gate arc completes in approximately 1.3 seconds. This speed is fixed by the motor specification and is not field adjustable.

Does CE certification matter for buyers outside Europe?

CE certification demonstrates that the product has been assessed against structured safety and EMC standards. Buyers in North America, Australia, and Asia increasingly specify CE certified gate operators as a quality indicator, particularly for commercial and institutional projects where product liability considerations apply. For European buyers, CE marking is a legal import requirement.

Can I use it on an inward swinging gate?

Yes. The motor direction is configurable via the controller orientation parameter. The arm geometry must be adjusted to suit inward swing installation. The arm connection point on the gate leaf changes side.

Confirm that the arm travel path is clear of obstructions on the inward arc before commissioning.

How does it handle a power cut?

The controller supports battery backup connection. During a power cut, the gate can be configured to remain in its current position, open automatically for emergency egress, or continue normal operation on battery.

For sites where pedestrian access must be maintained during power outages, battery backup is the standard specification.

What is the maximum gate leaf length?

The maximum gate leaf length is 1.5 metres for a single door leaf. This covers the standard pedestrian gate width range of 0.8 to 1.4 metres with margin.

Gates wider than 1.5 metres require a different operator specification. Contact the Open Bear team with your gate dimensions before ordering.

Related Products

For vehicle gates requiring heavy duty swing automation, see the heavy duty swing gate opener, with 650 Nm of torque and support for gates up to 1,200 kg.

For a concealed, architecturally invisible installation, see the floor swing door operator, which handles 250 kg gates with zero surface visibility.

Ready to Order?

Our team can confirm whether this operator suits your gate's weight, leaf length, and hinge configuration and provide a direct factory price.

CE certified, Bluetooth and WiFi built in, with English documentation included.

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About the Author

Leo Chen | Head Of Content team

Produced by the Open Bear Engineering and Content team. All specifications are drawn from Open Bear's factory verified documentation.