Automatic Swing Door & Automatic Sliding Door Systems 2026

A Specification Guide for Contractors, Distributors and Project Procurement Teams

 

Automatic Swing Door and Automatic Sliding Door Systems 2026: How to Specify Operators That Survive Real Traffic

An automatic entrance is judged in the first four weeks of operation. If the operator is undersized, the symptoms appear immediately: the leaf hesitates, the safety sensor is triggered by pedestrians walking past rather than through, the belt stretches, or the controller throws a fault every morning. By the time the contractor is called back, the argument has moved from engineering to commercial - and the distributor who supplied the operator is at the centre of it.

This guide is for the trade buyers who specify and stock automatic entrances: entrance contractors, automatic door distributors, aluminium and glass façade fabricators, and project procurement teams fitting out retail, healthcare, transport and commercial buildings. It covers how to choose between an automatic swing door and an automatic sliding door, how to size an operator from the door schedule, what safety devices are mandatory, and how automatic door supply is structured for wholesale and OEM programmes.

The operator models, load limits and configurations below are the ones HEINDA manufactures today, with figures that can be used directly in a submittal.

 

1. Swing or Sliding: The First Decision

The choice between an automatic swing door and an automatic sliding door is decided by the building, not by the catalogue. Sliding doors move the leaf parallel to the wall and need clear wall space beside the opening; swing doors rotate about a hinge or spindle and need clear space in front and behind.

Criterion	Automatic sliding door	Automatic swing door
Space needed	Clear wall or pocket beside the opening	Clear approach area on both faces
Typical application	Retail frontage, hospital corridors, airports, supermarkets	Accessible entrances, hotel lobbies, offices, healthcare rooms
Barrier-free access	Excellent - no leaf to push, wide clear opening	Depends on operator force and hold-open time
Wind exposure	Tolerant of external wind conditions	Sensitive to wind load and pressure differential
Emergency egress	Requires breakout or emergency opening function	Swing leaf can be pushed open with the correct device set
Maintenance access	Header track and rollers accessible from below	Mechanism may be in a header or under the floor

The practical rule: sliding for high pedestrian throughput and limited approach space, swing for rooms, corridors and where the door leaf must also perform as a fire or smoke door. Many buildings need both, and the same controller family across both is a genuine operational advantage for the maintenance contractor.

 

2. Automatic Swing Door Operators: Load, Format and Safety

Automatic swing door systems split into two formats. Overhead operators mount above the door and drive an arm; concealed or floor-level operators drive a spindle from below or inside the leaf, leaving the door face clean. Concealed units are what design-led entrances specify, which is why the concealed automatic door opener and the electric floor spring families have grown fastest in premium projects.

Sizing starts with leaf weight, then leaf width, then traffic. The operator must be able to move the leaf reliably against the building's pressure differential, and it must still comply with the maximum opening force requirements for accessible routes.

Model	Type	Door weight	Door width	Notes
YC-60	Concealed automatic door closer	below 60 kg	below 1,000 mm	Timber doors, concealed installation
CD-68	Automatic swing door opener	below 70 kg	below 1,000 mm	Compact motorised swing operator
CD-71	DC brushless motorised swing door operator	below 140 kg	below 1,300 mm	Intelligent control, low noise, brushless motor
CD-80	Overhead automatic swing door closer	below 140 kg	below 1,300 mm	Heavy duty, ultra-quiet third-generation mechanism
OW-180	Motorised concealed floor closer	up to 180 kg	1,400 mm	Remote control, water-proof single-side opening version available
Swing automatic door (electric floor spring)	Electric floor spring drive	up to 450 kg	2,000 mm	Worm gear helical drive for very heavy leaves
L-85	Motor-driven swing gate operator	up to 300 kg	below 3,000 mm	External gates and heavy entrance leaves
One-way automatic swing door	Concealed swing door operator	Project specific	Project specific	Opening and closing speed adjustable via controller

Three specification notes from experience on site. First, for accessible routes, verify the opening force and the hold-open time against the local accessibility requirement, not just the leaf weight - a correctly sized operator can still be non-compliant if the hold-open time is too short. Second, on externally exposed doors, always specify one class above the calculated load; wind acts on the exposed area of the leaf, not on its weight. Third, above 180 kg the argument for an electric floor spring or a heavy overhead operator becomes decisive: arm-driven units run out of leverage on very heavy leaves.

 

3. Automatic Sliding Door Operators: From Standard to Maglev

Sliding door operators are selected on three variables - leaf weight, clear opening width, and how much wall space or stacking space is available. Where the opening is wide and the wall space is limited, a telescopic mechanism lets two or more leaves stack into the same distance that a single leaf would need.

Model	Opening mode	Capacity	Best suited to
HD125	Single / double leaf	Microcomputer intelligent control	Standard commercial entrances
HD150	Single / double leaf	1 x 150 kg and above	Retail and office entrances
HD180	Single / double leaf	Good-standard duty	General commercial traffic
HD200	Single / double leaf	Max opening force 150 N	Modular design, heavy-duty entrance
HD200L	Single / double leaf	Heavy duty	High-traffic retail and transport
HD350	Single / double leaf	Super heavy duty	Very heavy leaves, wide openings
M300 (maglev)	Single leaf	Opening range 500-1,050 mm; speed 0.2-0.5 m/s	Quiet, fast, minimal wear on magnetic suspension
O500 (telescopic)	Double smooth door 1,200-3,400 mm; single sliding door option	Telescopic stacking	Wide openings with restricted wall space
E400	Emergency evacuation	Hidden or surface ground track; 6063-T5 aluminium alloy case	Egress routes requiring automatic opening on alarm
Sliding gate openers	Single gate leaf	AC230V / 120V or DC24V; S4-25% duty; 10 min running time	External gates and vehicle entrances

Ground track is a specification decision that gets made too late. A hidden ground track produces a cleaner floor and avoids a trip hazard, but it requires a floor recess and it must be kept clear of grit; a surface track is easier to install and to clean. On projects with a raised floor or a finished stone floor that cannot be cut, the surface option is usually the only realistic one - a question worth settling before the entrance is ordered, not after the floor is laid.

Duty cycle matters as much as load. The duty rating of the operator (expressed as a percentage of running time per hour) must match the traffic model: a shopping centre entrance that opens 400 times an hour is a completely different specification from an office entrance that opens 40 times an hour, even if the leaf weight is identical.

 

4. Safety Devices: What Is Mandatory, Not Optional

Automatic doors are one of the few building products where the safety requirement is a legal condition of use rather than an optional feature. The requirements vary by market, but the device categories are constant.

● Presence detection - activation and presence sensors that detect people approaching, passing through and standing within the leaf sweep. Correct sensor configuration is what prevents both "the door closed on me" and "the door opens every time someone walks past".

● Safety light curtain or equivalent - a monitored barrier that detects an obstruction in the closing path even when the door is moving.

● Force limitation - the operator must limit the kinetic energy it applies on contact, and the limits are defined in the applicable standard (EN 16005 in Europe; the ANSI/BHMA A156.10 and A156.19 families in North America).

● Emergency breakout or emergency opening - on egress routes the door must be openable without power, either by breakout of the leaves or by an emergency opening function from the fire alarm or building management signal.

● Monitoring of the safety chain - the controller must detect a failed sensor and fall back to a safe state rather than continue operating normally.

For European specification the reference document is EN 16005, which covers safety in use of power-operated pedestrian doorsets, and requires the safety functions to be designed and validated to a defined performance level. For North American projects the references are ANSI/BHMA A156.10 for power-operated sliding doors and A156.19 for low-energy power-operated swing doors. HEINDA operators are supplied with the activation and safety device options needed to configure a compliant installation for the destination market, and the motor selection, sensor set and controller parameters are confirmed project by project rather than shipped as a single fixed package.

The commercial consequence for distributors: sensors and safety devices are a separate supply line from the operator itself, and it is normal to source them locally so that spares match what the local service market already stocks. What matters from the operator manufacturer is that the controller can accept the local sensor set - which is a controller question, not a mechanical one, and it should be asked before the order is placed.

 

5. Sizing an Operator from the Door Schedule

Automatic door sizing fails most often because the quotation is built from the leaf weight alone. Work through the schedule in this order.

1. Clear opening width required. For accessible routes this is set by accessibility regulations; for retail it is set by trolley and pedestrian flow.
2. Number of leaves. One leaf needs its full width in wall space; two leaves can slide in opposite directions - each needs half the clear opening plus an overlap.
3. Leaf weight. Weigh the actual leaf including glass, frame and hardware. Frame and hardware can add 20-30 percent to a glass calculation.
4. Stacking space. For telescopic mechanisms confirm the stacked width, and for sliding doors confirm there is no duct, radiator or signage in the slide path.
5. Traffic and duty cycle. Peak openings per hour determines the servo and the wear components to specify.
6. Environment. Wind exposure, and the pressure differential caused by mechanical ventilation, both increase the load on swing leaves.

A worked example of the arithmetic that catches people out: a sliding entrance with a 1,600 mm clear opening and only 900 mm of usable wall space cannot be served by a single leaf of 1,600 mm. It needs either two leaves of 850 mm sliding in opposite directions, or a telescopic set - which is exactly what the O500 telescopic family exists for, with double smooth door routines covering 1,200-3,400 mm. Getting this wrong is a fabrication-stage problem, when the glass is already cut.

 

6. Emergency Egress and Accessible Entrances

Two building requirements regularly change an automatic door specification, and both need to be settled before the order.

For emergency egress, the door must remain operative or openable when the power fails or when the fire alarm activates. Sliding doors achieve this either by a breakout function - the leaves can be manually pushed out of the track - or by an emergency opening function with battery backup that drives the leaves open on signal. The E400 emergency evacuation automatic sliding door is specified for this purpose, with hidden or surface ground track and a 6063-T5 aluminium alloy case. Swing doors achieve the same result through the door leaf itself, provided the operator and any lock release are wired into the alarm circuit.

For accessible entrances, the requirement is not the load but the behaviour: maximum opening force, minimum hold-open time, and the width of the clear opening. An operator that is oversized for a light leaf will still be non-compliant if it opens too fast or closes too early, and controls that allow independent setting of opening speed, closing speed and hold-open time are therefore a specification requirement rather than a convenience - a point HEINDA builds into its concealed and overhead swing operators, where opening and closing speeds are adjusted from the controller.

 

7. Wholesale and OEM Automatic Door Programmes

Automatic door supply has two very different buyer types: the contractor who needs a specific configuration for a project, and the distributor who needs a stockable range with predictable spares. A manufacturer worth consolidating with serves both from the same platform.

Requirement	What to agree in writing
Model range	Which operators cover the local market's typical leaf weights - a two or three model core range plus project-specific units
Controller compatibility	Whether the controller accepts locally available sensors, card readers and access control contacts
Spares policy	Which wear parts are held in stock (rollers, belts, control boards, sensors, batteries) and the stated lead time
OEM / private label	Branding on the unit, the case, the controller label and the documentation
Documentation	Wiring diagrams, parameters, installation and commissioning sheets in the destination language
MOQ flexibility	Whether a mixed container across swing, sliding and gate operators is accepted

A useful first order for a new distributor is one mid-range sliding operator, one mid-range overhead swing operator and one concealed swing operator. Those three cover the majority of commercial enquiries; the specialist units - telescopic, maglev and emergency evacuation - are then added as project demand proves itself. A maglev automatic sliding door in particular should be quoted as a premium line for entrances where noise and wear are the deciding factors, since magnetic suspension removes the mechanical contact that produces both.

 

8. The Full Door Control Range from One Manufacturer

An automatic entrance almost never arrives alone in a building project. The same package usually includes manual door hardware on the fire doors, glass door hardware on the interior partitions, and automatic ventilation on the façade - and sourcing those from separate factories means separate tolerances, separate lead times and separate documentation.

HEINDA manufactures all six product groups from one manufacturing base:

● Automatic sliding door - HD125, HD150, HD180, HD200, HD200L and HD350 sliding door operators, M300 maglev, O500 telescopic and E400 emergency evacuation systems, plus sliding gate openers for external use.

● Automatic swing door - YC-60, CD-68, CD-71, CD-80, OW-180 motorised floor closers, electric floor spring drives up to 450 kg and L-85 gate operators.

● Door closer - overhead, concealed, fire rated, anti-freezing and power-adjustable models from 20 kg to 200 kg.

● Floor spring - single cylinder and heavy-duty models from 60 kg to 1,500 kg, plus concealed and electric versions.

● Patch fitting - stainless steel and hydraulic patch fittings for 8-12 mm and 15 mm glass doors.

● Automatic window system - chain, screw and push-rod window openers with overload protection and multi-window linkage for natural and smoke ventilation.

For a contractor this means one submittal package for the entire door schedule. For a distributor it means one container instead of four, and one point of contact when a component needs replacing under warranty.

 

9. Installation, Serviceability and Spare Parts

Automatic doors are serviced products, and the installation design decides whether servicing takes ten minutes or two hours.

● Confirm the service access route to the controller and the track before the ceiling is closed.

● Confirm that rollers, belts and the safety sensor set can be replaced without removing the door leaf.

● Confirm the wiring route for the activation devices, alarm interface and any battery backup module.

● Confirm the commissioning parameters that will be recorded at handover: opening speed, closing speed, hold-open time, force limitation settings.

● Confirm the spare parts list that will be held locally, and the lead time for each item.

HEINDA supports this with a service network of more than 3,000 points and 365-day, 24-hour pre-sale and after-sale support, and with an annual production capacity exceeding 20,000 sets of automatic door systems alongside 4,000,000 floor springs and 1,000,000 door closers - capacity that matters when an entrance is specified once and reordered for every project the contractor wins afterwards.

 

10. Frequently Asked Questions

How do I choose between an automatic sliding door and an automatic swing door?

Sliding doors suit wide openings, high pedestrian throughput and sites where there is wall space but limited approach depth; they are also the more tolerant option in exposed locations. Swing doors suit rooms, corridors, accessible entrances and openings that must also act as fire or smoke doors. Many buildings need both, and using one controller family across both simplifies maintenance.

What leaf weight can an automatic swing door operator handle?

HEINDA operators cover the range from below 60 kg (YC-60 concealed) through 140 kg (CD-71, CD-80) and 180 kg (OW-180 motorised floor closer) up to 450 kg with an electric floor spring drive on leaves up to 2,000 mm wide. For external gates, the L-85 handles leaves up to 300 kg and 3,000 mm.

Are safety sensors included with the operator?

Safety and activation devices are configured per project because the required set depends on the destination market's standard and on how the entrance is used. The operator controller must be able to accept the local sensor set, so the sensor specification is confirmed at order stage. This also keeps spares aligned with what the local service market stocks.

What is the difference between a telescopic and a standard sliding door?

A standard sliding door moves one leaf into the space beside the opening, which requires that full width of clear wall. A telescopic automatic sliding door stacks two or more narrower leaves into a shorter space, so it is specified when the clear opening is wide but the available wall space is limited. The O500 telescopic system, for example, covers double smooth door routines from 1,200 mm to 3,400 mm.

What happens to an automatic door during a power failure?

For egress routes the door must remain openable or must open automatically. Sliding doors use either a manual breakout function or an emergency opening function with battery backup, which is the purpose of the E400 emergency evacuation automatic sliding door. Swing doors rely on the leaf itself plus the correct release and alarm interface wiring.

Can we order a mixed container of automatic doors, floor springs and glass door hardware?

Yes. HEINDA manufactures door closers, floor springs, patch fittings, automatic swing doors, automatic sliding doors and automatic window systems, and mixed models can be combined in one container. Consolidating the door schedule with one manufacturer also removes the interface disputes that appear when, for example, a glass door leaves the factory with hardware that does not match the entrance operator.

 

11. About HEINDA

HEINDA is the brand of Anhui Haida Door Control Equipment Co., Ltd., established in 1987 and based in Xuancheng, Anhui Province, China. The company has specialised in door control for more than 35 years, operates an 80,000 square metre manufacturing base with approximately 900 employees, and exports to more than 70 countries and regions across Europe, North America, South America, Southeast Asia and the Middle East. Its automatic product research and development dates back to 2003, and it holds multiple national invention patents, including China's first electric floor spring.

HEINDA holds ISO 9001, ISO 14001 and OHSAS 18000 certification and CE certification for its product range, with ANSI/BHMA A156.4 Grade 1 test results and 2,000,000-cycle life testing on door closers, plus UL 228 and UL 10C three-hour fire testing. It was recognised as a National High-tech Enterprise and named a National Floor Spring and Automatic Door Opener Production Demonstration Base, and has cooperated with Tongji University on door control development since 2011.

 

12. Key Takeaways

● Decide swing or sliding from the building first: wall space versus approach space, traffic, and whether the opening is also a fire or smoke door.

● Size the operator from clear opening width, number of leaves, actual leaf weight including hardware, stacking space, duty cycle and wind exposure - not from leaf weight alone.

● Safety devices are mandatory, not optional, and the controller must accept the locally available sensor set.

● For egress routes specify breakout or battery-backed emergency opening; for accessible routes specify opening force and hold-open time, not just load.

● Hidden or surface ground track must be decided before the floor is finished.

● Consolidate automatic swing doors, automatic sliding doors, door closers, floor springs, patch fittings and automatic window systems with one manufacturer so the whole door schedule ships as one order.

 

Have a door schedule to price? Send the clear opening widths, leaf weights, number of leaves and whether the opening is on an egress or accessible route, and we will return an operator specification with the matching safety device configuration. Email: martin@hkhaida.com | Mobile / WhatsApp: +86 188 5728 8288 Anhui Haida Door Control Equipment Co., Ltd. - Cross Economic Development Zone, Langxi County, Xuancheng City, Anhui Province, 242100, China Website: www.heinda-cn.com