Structural Opening
Confirm the full opening width and height and identify whether the values are structural, finished, or preliminary dimensions.
Space-Efficient Sliding Entrances
Telescopic Automatic Sliding Door
Multiple moving door leaves slide and stack in sequence to help projects obtain a larger usable clear opening where side travel space is limited. Final selection depends on the structural opening, required passage, stacking area, door-leaf construction and operator configuration.
- Multi-panel sequential movement
- Greater clear-opening utilization
- Layout planning for limited side space
Product Definition
What Is a Telescopic Automatic Sliding Door?
A telescopic automatic sliding door uses multiple moving leaves that travel and stack in sequence. This arrangement can make more effective use of the available side area when a project requires a larger clear passage than a standard sliding layout may provide.
The complete entrance may include moving leaves, fixed panels, an overhead operator, synchronized drive components, activation sensing, presence-safety detection, operating controls, locking interfaces and project-defined access-control connections.
Selection Conditions
Confirm Six Conditions Before Choosing a Telescopic Layout
Required Clear Passage
Confirm the usable passage required when the door is fully open.
Available Panel-Stacking Area
Confirm the usable stacking space on the selected side or sides and identify walls, columns, glazing lines, façade details, or other obstructions.
Door-Leaf Construction and Weight
Confirm the proposed number of leaves, dimensions, frame system, glass, hardware, and estimated or verified moving weight.
Traffic and Safety Sensing
Describe approach directions, peak traffic, wheeled access, and the required activation and presence-safety sensing zones.
Access Control and Supply Scope
Confirm access-control, locking, operating-mode requirements, and whether the request covers a complete entrance or an operator and control package.
Layout Comparison
Telescopic, Standard Sliding or Bi-Parting?
| Selection Point | Telescopic Sliding Door | Standard Sliding Door | Bi-Parting Sliding Door |
|---|---|---|---|
| Opening movement | Multiple leaves move and stack in sequence | Moving leaves travel into the available side area without sequential stacking | Two moving leaves travel away from the center |
| Side-space condition | Consider when side travel is constrained but panel-stacking space is available | Suitable when the selected leaf arrangement has sufficient travel area | Requires usable door-travel space on both sides |
| Clear-opening planning | Intended to make greater use of the available structural opening | Clear passage depends on the leaf arrangement and available travel area | Creates a central passage based on the opening and side travel |
| Passage position | Depends on the selected one-sided or two-sided telescopic layout | Depends on the selected sliding direction | Normally positioned at the center |
| Main selection reason | Balance limited side space with a larger required passage | Use a simpler sliding arrangement where travel space is sufficient | Create a centered, symmetrical entrance |
| Key review inputs | Structural opening, target passage, stacking area, leaf arrangement, and operator | Structural opening, sliding direction, leaf size, and travel space | Structural opening, central passage, and travel space on both sides |
This comparison is a project-planning guide rather than a fixed engineering rule. Final selection requires verified opening dimensions, door-leaf construction, panel movement, operator configuration and interface requirements.
Decision Benefits
Why Consider a Telescopic Sliding Layout?
More Effective Use of Limited Side Space
Multiple moving leaves stack in sequence, providing another layout direction when the available side travel area is constrained.
Larger Usable Passage Planning
A telescopic layout can be evaluated when a standard sliding arrangement does not provide the required clear passage within the available opening conditions.
Flexible Panel Arrangement
The number of leaves, movement direction, fixed panels, and stacking position can be reviewed against verified opening and system information.
Coordinated Entrance System
Door movement, operator, sensing, safety monitoring, locking, access-control interfaces, and supply scope are reviewed as one entrance system.
System Coordination
Typical Telescopic Entrance System Components
Telescopic Door Operator
Houses the drive, controller, and mechanisms required for the selected multi-panel movement.
Motor and Drive Components
Move the door leaves according to the selected telescopic arrangement.
Controller
Coordinates opening, closing, speed, hold-open time, operating modes, and connected control signals.
Track and Hangers
Support and guide the moving leaves; selection depends on verified door construction and load.
Moving Leaves, Fixed Panels and Frames
Form the entrance according to the approved layout, glazing, frame, finish, and stacking arrangement.
Activation Sensing
Detects approaching users or receives an approved activation signal.
Presence-Safety Detection
Monitors defined areas around the threshold, passage, and moving-panel path according to the selected sensing arrangement.
Access and Locking Interface
Connects compatible access-control, operating-mode, and locking functions where required.
Technical Reference
Technical Parameters
| Parameter | Standard Specification |
|---|---|
| Clear Opening Width | 700–3,000 mm, customizable |
| Opening Height | 2,000–3,000 mm, customizable |
| Maximum Leaf Weight | 100–200 kg per leaf, subject to operator and configuration |
| Opening Speed | 100–700 mm/s, adjustable |
| Closing Speed | 100–600 mm/s, adjustable |
| Hold-Open Time | 0–60 seconds, adjustable |
| Motor | Brushless DC motor |
| Power Supply | AC 110–240 V, 50/60 Hz |
| Activation | Microwave sensor, push button, or access control |
| Safety Protection | Presence detection and obstacle response |
| Operating Modes | Automatic, Open, Closed, Partial Open, and One-Way |
| Frame Options | Aluminum, stainless steel, or frameless glass |
| Glass Options | Tempered, laminated, or insulated glass |
| Installation | Concealed or surface-mounted |
| Access Control | Card reader, keypad, face recognition, or building system |
| Customization | Size, finish, glass, sensors, and control functions |
These specifications represent common configuration ranges for automatic sliding doors. Final dimensions, door-leaf weight, operating speed, sensors, control functions and telescopic panel arrangement must be confirmed according to the entrance, selected operator and project requirements.
Applications
Where Can a Telescopic Sliding Door Be Evaluated?
Retail Storefronts
Evaluate a telescopic layout when the storefront opening and limited side area must be balanced with the required customer passage.
View Retail Storefront Solutions
Hotel Entrances
Review the layout when guests, luggage, and daily lobby traffic require a clear passage within constrained entrance conditions.
View Hotel Entrance Solutions
Office Buildings
Coordinate the entrance layout with visitor circulation, employee access, façade conditions, and project-defined access control.
View Office Entrance Solutions
Shopping Centers
Review the target passage for two-way traffic, carts, strollers, and wheelchairs against the available structural and stacking space.
View Shopping Center Solutions
Hospital Public Entrances
Evaluate the layout for public lobbies and general circulation where wheeled access and safety sensing are considered. Do not present it as an airtight operating-room door.
View Hospital Entrance Solutions
Public and Transport Entrances
Review the product where a larger passage and regular pedestrian flow must be coordinated with limited available side travel.
View Public Entrance SolutionsQuotation Preparation
Information Needed for a Useful Telescopic Door Quotation
A product name alone is not enough to configure the entrance. Share the following information so the panel layout, system scope and remaining decisions can be reviewed.
- Project Location
- Share the country and project location for quotation review.
- Structural Opening Width and Height
- Provide the full structural opening dimensions and identify whether they are finished or preliminary.
- Required Clear Passage
- State the usable passage required when the selected entrance is fully open.
- Available Panel-Stacking Space
- Confirm the usable stacking space on the selected side or sides, including possible obstructions.
- Proposed Number and Movement of Door Leaves
- Describe the proposed panel arrangement and the preferred movement direction where known.
- Door Frame, Glass, Hardware, and Estimated Leaf Weight
- Provide the proposed leaf construction and estimated or verified moving weight.
- Quantity and Expected Pedestrian Traffic
- State the required quantity, approach directions, expected traffic, and wheeled access needs.
- Activation and Presence-Safety Requirements
- Describe the required activation method and presence-safety sensing around the passage.
- Access Control, Locking, and Operating Modes
- Identify required access devices, locking functions, control signals, and operating modes.
- Complete Entrance and Supply Scope
- Complete-door requirements, or the original order reference for spares; quantity and items supplied by others
- Architectural Drawings and Site Photographs
- Attach drawings, opening details, and site photographs when available for layout review.
Project Workflow
From Opening Information to Delivery
- 01
Project Information Review
Review dimensions, photographs, drawings, traffic, interfaces, and requested scope.
- 02
Telescopic Layout Evaluation
Check the target passage, panel arrangement, movement direction, and available stacking space.
- 03
System Configuration and Quotation
Select the provisional operator, components, sensing, controls, and supply scope for quotation.
- 04
Drawing and Interface Confirmation
Confirm the layout, supporting structure, power, signals, access-control interfaces, and responsibilities.
- 05
Production, Inspection and Packaging
Manufacture or prepare the approved supply scope, complete the required checks, and package it for shipment.
- 06
Shipment and Remote Support
Arrange shipment according to the agreed terms and provide applicable documents, online installation guidance, and remote troubleshooting support.
- 2011
- Founded
- 20,000+ m²
- Factory Area
- 90+
- Countries and Regions Served
- 7,600+
- Enterprise Customers
- 1,000,000
- Operational Cycles for Key Door-System Testing
- OEM/ODM
- Solution Provider
Frequently Asked Questions
Frequently Asked Questions
What is a telescopic automatic sliding door?
A telescopic automatic sliding door uses multiple moving leaves that travel and stack in sequence. The layout is evaluated when the project needs to balance available side travel with the required clear passage.
How is a telescopic door different from a standard sliding door?
A standard sliding layout moves its leaves into the available side area without sequential panel stacking. A telescopic layout uses multiple leaves that stack in sequence, so the appropriate choice depends on the opening, target passage, travel area, leaf construction, and operator.
What is the difference between telescopic and bi-parting sliding doors?
A bi-parting door normally creates a central passage with moving leaves travelling toward opposite sides. A telescopic layout stacks multiple leaves on one or both sides according to the selected arrangement.
How much panel-stacking space is required?
The required area depends on the structural opening, target clear passage, number and size of moving leaves, frame and glass construction, hardware, and operator arrangement. Provide the complete opening and available side-area dimensions for layout review.
How are the number of moving leaves and clear opening confirmed?
They are confirmed from the structural opening, required passage, available stacking area, door-leaf dimensions and weight, fixed-panel arrangement, and selected operator configuration.
Can a telescopic door connect to an access-control system?
Compatible card readers, keypads, face-recognition devices, reception controls, or building systems can be reviewed. Signal type, controller logic, locking, and device compatibility must be confirmed before supply.
Can SEPPES supply a complete entrance or only the operator system?
Our main focus is complete door supply. Operator systems, components and accessories are generally supplied to existing customers as replacement, spare or repair parts. Large-volume standalone requirements, such as hundreds or thousands of sets, can be discussed separately. The quotation states inclusions and exclusions.
What affects the price of a telescopic automatic sliding door?
Price depends on the opening, panel arrangement, door-leaf construction and weight, operator, sensors, controls, access and locking interfaces, finish, quantity, supply scope, packaging, and destination.
Continue Your Research
Related Products and Planning Resources
Project Inquiry
Send Your Telescopic Entrance Requirements
Share the structural opening, required clear passage, available panel-stacking space, door-leaf information, traffic, sensing, access requirements, quantity, destination and requested supply scope.
Drawings, opening details and site photographs can help identify the remaining layout and system decisions.