Pitless Elevators

Pitless elevators are the optimal solution for home renovations with limited space and where deep foundations are not feasible. Nidec elevators offer pitless solutions suitable for home renovations, starting from just 300,000,000 VND, with a shaft area of ​​only 1m², ^while still ensuring convenience for families. Learn more about the dimensions, load capacity, and technology of these mini elevators in this article!

What are Pitless Elevators? Do They Require Excavation of the House Foundation?

Before understanding this type of elevator, you should first understand the nature of the elevator pit; only then will you understand why pitless elevators have become a trend in recent years.

What is a Pit? Structure of the Pit in an Elevator

A pit is a recessed space below the floor level of a building, usually the ground floor. This space contains three main components:

• Pit waterproofing system: Because the pit is an underground section, if it is not properly waterproofed, water leaks can easily occur, affecting the elevator's operation.
• Buffer shock absorber: a spring is mounted at the bottom of the pit to absorb the impact force in the event of an accident.
• Cabin guide rails: This system keeps the cabin moving along a precise vertical axis and prevents shaking.

So, what was the purpose of the pitless elevator? It's for when your house is already built, and digging a 1.5m deep pit to install the equipment is impossible. In that case, the pitless elevator is the most optimal and reasonable solution.

What is the definition of a pitless elevator? Are they safe?

With older technology, any type of elevator required a pit deeper than 1 meter, leading many to mistakenly believe that modern house construction requires a deep pit. However, with modern technology, homeowners no longer need to worry about this issue.

Pitless elevators are a type of elevator specifically designed to eliminate the need for deep excavation into the foundation of a house. Engineers have simplified the pit structure to fit the limited space of renovated homes.

Despite its streamlined structure, this elevator series is still equipped with standard safety features such as a damping system, emergency stop sensors, and automatic rescue. Therefore, customers can rest assured of absolute safety when using it, as this is always a top priority in modern elevator technology.

Why Should Home Renovators Choose Pitless Elevators?

Excavating a pit for an already built house is not only inconvenient for the family but also poses potential risks to the foundation structure. Therefore, instead of wasting time digging a pit to install an elevator, why not consider a safer and more convenient option? Here are the reasons why homeowners renovating should choose a pitless elevator :

• Space-saving: These types of elevators are usually small, classified as mini elevators, so installing one doesn't even take up 1 square meter ^of space in a house.
• No impact on the house structure: Thanks to simplified component technology that minimizes drilling and chiseling of your house, adding an elevator to your home will not affect the structure at all.
• No overhead height (OH) requirement: Pitless elevators typically use Kinetec mini motors, taking advantage of the overhead height requirement, as this type only requires an OH height of 2600mm for motor installation.
• Reduced costs: The cost of excavating and waterproofing the elevator pit is quite high, so choosing a pitless elevator will help you optimize costs in this area.
• Making family life more convenient: Pitless technology will help you easily renovate your home to make it more modern. Especially for families with four or more floors, transporting goods is easier, and elderly people can move between floors more easily without worrying about falling or getting tired from climbing stairs as before.

Classification of Technologies in Pitless Elevators

You often hear that cable-driven elevators require a pit to be dug, and that hydraulic or screw-driven technology can be used to avoid pit digging. However, that's not true. Modern cable-driven elevators are much more advanced than in the past because they no longer require a pit as deep as 1.5m for installation. This is especially true for mini elevators.

Nidec elevators currently lead the way in pitless elevator technology using cable-driven motors, at only one-third the cost of other technologies. To help you better understand all three pitless elevator technologies, please refer to the comparison table below:

In short, the absence of a pit or the shallowness of a pit are characteristics, not proprietary technologies, so you can choose any technology you like. We encourage you to choose cable-driven technology because it is the cheapest, safest, and most widely used option.

Advantages and Disadvantages of Pitless Elevators

Advantage

• Save 25-45 million VND on excavation and waterproofing costs at the construction site.
• This shortens construction time to 15-20 days (compared to 4-6 weeks when digging traditional trenches).
• Maintain the original structure of the house: No floor damage, no cutting of concealed electrical or plumbing lines, minimal dust and debris during construction.
• The only feasible solution for houses near groundwater sources is to completely eliminate the risk of long-term water seepage and rust.
• The equipment meets the TCVN 6396 inspection standard and has full CO/CQ certificates for registration with government agencies.
• No need to build an attic above, reducing construction costs.

Weakness

• Slower speed: Going from the 1st floor to the 5th floor takes about 25-30 seconds, but that's not a significant difference.
• Floor limit: Pitless elevators typically use mini motors, so the maximum travel distance is only 7 floors, suitable for families of 4-5 members.
• It is mandatory to use an aluminum frame with glass walls and manually/automatically hinged doors to optimize cabin space.
• Not suitable for newly built houses: If your house is newly built, you should install a standard elevator with a pit for more space. Also, pay attention to choosing concrete or steel columns for your elevator.

Advice: If you plan to install an elevator when building a new house, contact Hoang Sa Viet Elevator before the foundation pouring stage to receive advice on elevator installation and pit construction that is efficient and cost-effective!

Technical Specifications of Pitless Elevators

Depending on the homeowner's needs, size, and load capacity, pitless elevator models will have different technical specifications. The table below shows standard specifications for your reference.

Alternatively, you can contact our hotline at 0707 025 789 to receive the most accurate advice regarding the status of your home renovation.

In addition to pitless elevators, you can also consider machine-roomless home elevators if your house has limited top-floor height.

Quotation for Pitless Mini Elevators for House Renovations

If you want to know the exact price of an elevator suitable for your home's size, you can watch the self-quotation video below from THANGMAYNIDEC. With just a few data entry steps, you will receive the most accurate quote via email for a pitless elevator for your home. Nidec Elevators guarantees 100% confidentiality of your personal information.

Watch the tutorial video below:

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Automated Quotation Program

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Practical Installation Procedure for Pitless Elevators

We employ a rigorous 6-step process to ensure the elevator shaft for your home elevator is precise down to the millimeter:

Step 1 - On-site survey:

Immediately after receiving a request from the customer, THANGMAYNIDEC's engineering team will visit the construction site to conduct a geological survey, measure the actual dimensions, and check the location for the elevator shaft.

Step 2 - Consultation on options (free):

Based on your usage requirements, square meter area, and house architecture, we will advise you on the most suitable technology (cable-driven, hydraulic, or screw-driven) and load capacity, helping you optimize costs right from the start.

Rest assured, if you haven't agreed on a plan with THANGMAYNIDEC, we will not charge any additional survey or consultation fees.

Step 3 - Design detailed elevator shaft drawings:

After agreeing on the plan, the technical department will provide detailed elevator shaft design drawings. These drawings include parameters for the pit, overhead level (OH), machine placement, and electrical connection points. We will work closely with your construction company to ensure the elevator shaft is constructed correctly, minimizing the need for demolition and repairs later.

Step 4 - Signing the contract and proceeding with production:

Strict quality control of output. THANGMAYNIDEC will begin the custom cabin fabrication process in our workshop and import core components from Nidec KDS Corporation. Installation will then be carried out by professionally trained engineers according to standards. Our experienced team of technicians will perform mechanical installation, cable pulling, and electrical system connection.

Step 5 - Independent Verification:

Once completed, the elevator will undergo trial operation and pass a rigorous safety inspection process from the competent authorities to obtain an official operating license.

Step 6 - Handover, user instruction, and scheduled maintenance:

We handed over the elevator and instructed the family on how to use it and how to perform emergency rescue procedures in case of a power outage. However, our responsibility doesn't end there. We are committed to regular maintenance to ensure the elevator is always in perfect working condition, providing complete peace of mind for all family members.

Why is Nidec Elevator so confident with its pitless elevator line?

If you search for Pitless Elevators, you'll certainly find numerous companies selling hydraulic and screw-driven elevators with prices reaching billions of VND. But with Nidec Elevators, our team of engineers has designed a Pitless Elevator line using cable traction technology at less than half the price.

To help customers avoid headaches about installation costs while still meeting renovation requirements, we are confident in offering the following unique values:

Leading the Way in Flat Cable Technology and Optimized Aluminum-Steel Enclosures

• We utilize advanced Kinetec flat cable technology, which significantly reduces pulley size and top-floor height.
• Combined with a smart modular steel frame, the elevator can stand firmly on the existing floor while only requiring a 10cm recess in the floor for the installation of the damping system.
• This helps homeowners save hundreds of millions of dong compared to buying fully imported elevators from Europe.

Official Import of Kinetec Motors

• Despite being more affordable than screw-driven elevators, Nidec elevators consistently deliver top-tier performance thanks to their advanced Kinetec motors.
• This gearless motor operates extremely quietly and reliably, completely eliminating vibrations to the structure of old buildings.
• Our 5-year warranty on the main engine is the clearest evidence of our confidence in the quality of our products.

We have a large-scale manufacturing plant.

• We own a large-scale manufacturing plant that gives us complete control over the processing of cabins and mechanical components.
• Domestic production allows us to tightly control technical errors and optimize construction time to just 7 to 10 days at the construction site.
• You will receive products of international quality at factory prices, without any intermediaries.

CONTACT INFORMATION

HOANG SA VIET INVESTMENT AND DEVELOPMENT COMPANY LIMITED

• Address: 184/20A Le Dinh Can Street, Tan Tao Ward, Ho Chi Minh City
• Hotline: 0707025789
• Email: hungpham@hoangsaviet.com
• Website: thangmaynidec.vn
• Working hours: 8:00 AM - 5:00 PM daily