How to Choose Automatic Sliding Doors for Office Buildings

Choosing automatic sliding doors for an office building starts with the entrance and the people using it. A public reception, an access-controlled staff entrance and an internal meeting area may need different opening layouts and operating behaviour. For door manufacturers, distributors and installation teams, define those requirements before selecting a motor or comparing quotations.

This guide focuses on preparing a commercial sliding-door project for operator selection. Treat the door leaf, frame, running gear, controls and installation as parts of one proposal, with a named supplier or responsible party for each.

Start with the location and daily use

Record whether the opening is an external entrance, a sheltered lobby or an internal partition. Describe exposure to weather, the surrounding finishes, the users who need access and any constraints that affect the complete door design. An operator considered for an interior partition is not automatically suitable for an exposed entrance.

• Public reception: describe the visitor route, where people wait and how reception staff manage entry.
• Staff entrance: identify the access-control equipment and what should happen when entry is authorised or denied.
• Internal partition: explain the desired privacy, visibility and activation method, together with the available profile space.
• Service access: state what must pass through the opening, including any trolleys or equipment that affect the required clearance.

Describe busy periods with observations from the actual site where available. A catalogue speed or general throughput claim does not establish whether the proposed entrance will handle that pattern of use.

Compare single-leaf and double-leaf layouts

Prepare a plan showing fixed panels, moving leaves and the open and closed positions. A single sliding leaf needs somewhere to travel beside the opening. A double-leaf proposal needs the available travel and supporting arrangement for both leaves to be checked. Show furniture, reception counters, walls and other nearby obstructions on the same plan.

Keep three entries separate: the width of each leaf, the clear passage when open and the travel required to reach that position. For a double-leaf design, list the dimensions and complete weight of each moving leaf. Ask the supplier to identify whether a quoted load figure applies per leaf or to the proposed assembly.

Record the available head space and mounting surface in a section drawing. Include the track and hanger connection, floor guide and how covers can be removed for adjustment or servicing. Resolve these interfaces before the surrounding finishes are fixed.

Write the required operating sequence

A list of accessories is less useful than a description of what the door should do. Use a few everyday situations to explain the requirement:

• During normal arrival: who may enter, what activates the door and where people may stop or wait.
• After hours: who can authorise entry, how locking is managed and how staff leave.
• When moving equipment: what clearance and operating mode are required, and who controls that mode.
• During a power interruption or building-system signal: what behaviour the project requires and which party must confirm the proposed solution.

Ask the supplier and responsible installer to review the activation, detection, access-control and locking interfaces together. A general statement such as “supports access control” does not identify the wiring or equipment for the project. For device selection questions, use the push-button and sensor activation guide.

If the opening has a designated emergency, fire, security or accessibility function, state that function and the destination country when requesting project documentation. Obtain confirmation for the complete proposed assembly from the responsible parties; an ordinary operator description does not establish approval for that application.

Select the drive and the supply scope together

For a QT proposal, the motor's gearless design must be distinguished from the door transmission: the QT-K assembly includes a belt. The QT-K150 sliding door operator is a product starting point for a single- or double-leaf configuration review, with suitability dependent on the door layout and specified requirements.

For a magnetic linear-drive direction, review the CF-F40 operator. Use the CF and QT comparison to understand the drive approaches. Neither family name determines every installation detail or the contents of a quotation.

Ask which party supplies the door leaf, frame, operator, track, hangers, guides, covers, controls and site work. Separate included items from options and buyer-supplied components. Compare quotations only after the opening arrangement, required functions and supply scope refer to the same project.

Plan servicing and prepare the enquiry

Identify how the installer will reach the drive, controller, electrical connections and adjustment points. Ask for the maintenance information and available replacement-part references for the selected assembly. Agree who handles installation, commissioning and ongoing service rather than assuming these are included in a component price.

Send a concise project brief: location and use, opening plan, dimensions and weight per leaf, mounting section, operating sequence, requested components, quantity and delivery country. Mark estimated dimensions and unresolved requirements. The specification and quotation checklist provides a place to compare supplier responses without treating unanswered items as included.

Contact PTADOOR for an office sliding-door operator review. State whether you need an operator assembly or drive components, and describe the drawings available. A useful first enquiry defines the project clearly enough to identify the configuration and the questions that still need an answer.