TENAU Smart Elevator
Specialized passenger lifts designed for installation without a traditional deep pit, ideal for existing buildings and structures with foundation constraints.
- Reduced Structural Modification
- Shallow Pit or Ramp Installation
- Accessibility Compliance
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Product Overview
Intelligent customization redefines vertical transportation
A pitless passenger lift, or one requiring a shallow pit (typically 100-200mm rather than 1000mm+), is a niche solution developed to address installation challenges in existing or historical buildings where excavating a deep pit is impossible or cost-prohibitive due to rock, water table issues, or foundation constraints. This design often achieves reduced pit requirements by utilizing features such as shorter car frames, modified buffers (often collapsible), and alternative drive systems like specialized hydraulic setups or screw-driven mechanisms.
The key technical requirement is maintaining the necessary safety clearances and overrun distances without the standard pit depth. This is often accomplished by limiting the lift's speed and incorporating advanced safety features to ensure that the car's vertical movement is controlled even in the event of an over-travel scenario. For true "pitless" installations, a small ramp is typically required at the lowest landing to allow passengers to step up into the car, ensuring the lowest landing is flush with the car floor when it arrives. These lifts are primarily used for low-to-medium rise applications where accessibility is the main driver, such as for residential retrofit projects and small commercial additions.
Basic Product Parameters
Diverse options to meet the needs of different families
| Drive Type | Hydraulic, Screw Drive, or Low-Speed Traction |
| Pit Requirement | 0 mm (Ramp Required) to 200 mm (Shallow Pit) |
| Rated Load | 300 kg – 630 kg (4 to 8 Persons) |
| Speed | 0.15 m/s – 0.6 m/s (Low to Medium Speed) |
| Max Travel | Up to 15 meters (Typically 2-5 floors) |
| Compliance | Meets Accessibility Standards (e.g., ADA, EN81-20/50 adaptations) |
Product Advantages
Why choose Tenau elevators?
Simplified Retrofitting
Avoids complex and disruptive civil engineering work related to deep pit excavation, significantly reducing installation time and cost in existing buildings.
Foundation Protection
Minimizes interference with a building's existing structural foundation, making it suitable for heritage sites or structures with sensitive underpinnings.
Product Features
Innovative technology, superior experience
- Ramped Access: Allows for seamless transition from the lowest landing without a pit, enhancing accessibility for wheelchair users.
- Low Overhead Requirement: Often designed to also minimize the required clearance at the top of the shaft, further fitting into limited spaces.
- Safety Gear on Counterweight: For low-speed traction variants, additional safety gear may be fitted to the counterweight to minimize required pit depth.
Product Comparison
| Characteristic | Pitless Passenger Lift | Standard Passenger Lift (Traction) |
| Pit Depth | Minimal (0 mm - 200 mm) | Deep (Typically 1000 mm - 2000 mm) |
| Installation Time | Faster Installation in existing buildings | Slower, requires extensive civil work |
| Max Speed | Low (Focus on accessibility) | High (Focus on traffic flow) |
| Structural Impact | Minimal to Foundation | High, requires deep, reinforced pit |
| Cost Driver | Specialized components, reduced civil work | Speed, travel height, and component sophistication |
Installation Process
Standardized installation, efficient and worry-free
1. Site Inspection (1-3 days)
Professional engineers will visit your site to measure and assess the building structure and power supply conditions, and provide feasibility analysis and preliminary solutions.
2. Solution Design (3-5 days)
We offer customized design solutions based on client needs, including elevator specifications, interior design style, and installation location, and provide 3D renderings.
3. Shaft Preparation Guidance
Provide detailed shaft construction drawings and technical guidance to ensure that the civil engineering meets the installation requirements.
4. Equipment Installation (3-7 days)
A professional installation team will carry out on-site construction and modular assembly to minimize the impact on residential life.
5. Debugging and Testing (1-2 days)
Comprehensive system debugging and safety performance testing were conducted to ensure that all indicators met international standards.
6. Use Training + Delivery
Operation training, document handover, activation of remote monitoring service, and formal delivery for use.
Application Scenarios
Suitable for a variety of residential environments
Historical or Heritage Buildings
Enables the addition of necessary vertical access without altering the building's original foundation or structural integrity.
Private Residential Homes (Retrofit)
Provides a straightforward way to add a lift for mobility and convenience where cellar space is limited or unavailable.
Factors To Consider When Choosing Elevator
Comprehensive assessment, wise choice
Technical Factors
- Headroom and Overrun: Confirming that the reduced overhead clearance requirements of the specific design can still be met within the building's top floor structure.
- Ramp Slope: Ensuring any required access ramp meets local accessibility codes for slope and length, maintaining safe and easy wheelchair access.
- Drive Noise: Assessing the noise profile of the chosen drive system (e.g., screw drive can be louder) relative to the lift's location in the building.
Usage Factors
- Car Size vs. Shaft: Maximizing the usable car area within a small shaft size, as space is often constrained in retrofit projects.
- Maintenance Requirements: Understanding the specific service needs of non-traditional drive systems like screw or chain drives.
- Aesthetic Integration: Designing the lift cabin and doors to blend seamlessly with the existing or historic architecture of the building.
Frequently Asked Questions
Questions you may be interested in
Safety is ensured through reduced maximum speed, advanced safety gear, and often the use of collapsible or short-stroke buffers that activate in a smaller space, complying with reduced clearance standards.
Yes, they are suitable for low-rise commercial or public buildings where accessibility is required and standard pit installation is not feasible, provided the traffic and speed requirements are moderate.
If the lift has a 0mm pit, a shallow ramp (typically 1:12 slope for accessibility compliance) is necessary to ensure a smooth, trip-free transition from the landing floor to the car floor when the car is level with the lowest landing.
About Company
Intelligent elevator systems are redefining the industry model.
Smart Customization
Tenau Elevator continues to create value that exceeds customer expectations, meeting higher customer needs through high-end customization services and realizing customized solutions such as self-configuration and personalized decoration.
Smart Manufacturing
Leveraging Industry 4.0 manufacturing systems, Tenau Elevator has implemented intelligent production and quality traceability systems to ensure product quality and controllable management.
Intelligent Interaction
Beyond just passenger space, the Tenau elevator will integrate more intelligent interactive experiences, making it fun, entertaining, and interactive.
Intelligent Services
By leveraging the internet and the Internet of Things to establish an intelligent service system, Tenau Elevator will provide customers with remote services anytime, anywhere to solve user problems.
Our Commitment
Tenau Elevator (China) Co., Ltd. is professional China pitless passenger lifts manufacturers and pitless passenger lifts company, dedicated to providing customized solutions for the market and our customers. While markets, applications, and customers vary, we share a unique philosophy that guides our clients to success. We will respond promptly and patiently to any customer questions or feedback; we will respond promptly to any customer inquiries with more professional and reasonable prices; for any new product requests, we will engage in professional communication with our clients, listen to their opinions, and provide useful suggestions for product development; and for any customer orders, we will complete them quickly and with high quality. We offer pitless passenger lifts for sale.
We are committed to solving every problem, no matter how mundane it may seem. We will always work with you. You will find that we speak your language and understand your technical issues. This is why we have been able to successfully cooperate with clients from nearly 60 countries for many years.
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