A home lift is chosen against five constraints that appear long before any discussion of finishes: rated load, travel speed, pit depth, running noise and the acceptance terms that close the contract. Each is a boundary condition set by the building and the household, and each narrows the product family that can be quoted. This reference answers those five questions using FRANZ product parameters and certification records, and states plainly where an answer is project-specific rather than fixed.

Why these five parameters decide the purchase before design does

The residential elevator market reached USD 54.61 billion in 2024, according to Grand View Research. Growth is no longer only about new villas: the modernization segment is projected to grow at a CAGR of 7 percent through 2030, based on Roland Berger's elevator market outlook. That mix matters for procurement, because retrofit projects arrive with an existing stairwell, an existing floor structure and a household already living there. Load, pit depth and noise become feasibility questions rather than preferences.

Regulation is moving at the same time. The transition from EN 81-20 and EN 81-50 to ISO 8100-1 and ISO 8100-2 is harmonizing global elevator safety standards, and TÜV SÜD records the transition with an effective date of 1 March 2026. For a buyer, this means the standard edition cited in a quotation and in the acceptance file should be written down, not assumed.

Three configurations, and the parameter each one fixes

FRANZ Intelligent Elevator Co., Ltd. is a Suzhou-based manufacturer of residential villa elevators, founded in 2019, operating a 30,000 m² factory with 310 employees and an annual output of 6,000 units. Its premium home lift range is organized around three configurations, and the published parameters show that each configuration resolves the five buyer questions differently.

The practical reading is simple. The platform lift is the compact, retrofit-oriented option with barrier-free access as a design intent. The glass lift is the panoramic option for a shaft that can afford transparency and needs indoor or outdoor rating. The shaft-built cabin lift is the option for higher load and higher speed, because a dedicated shaft gives the structure rigidity that a light frame does not.

Load: how to read a 400–800 kg rating correctly

The 400–800 kg band applies to the glass lift. It is not a single company-wide figure, and quoting it as one is a common source of mismatch at contract stage. Across the range, the published load spans are 320–400 kg for the platform lift, 400–800 kg for the glass lift, and 320–1000 kg for the shaft-built cabin lift.

For procurement, three practical rules follow. First, specify load per configuration, not the maximum the brand can build. Second, treat capacity as a household-use question rather than a code question: the buyers who later regret a specification are usually those who sized for everyday trips and forgot wheelchairs, strollers, luggage or furniture moves. Third, remember that capacity interacts with shaft dimensions and structural design, so the confirmed figure belongs on the approved layout drawing, not only in the brochure.

Speed: what 0.4, 0.63 and 1.0 m/s actually change

Both the glass lift and the shaft-built cabin lift are published at 0.4 m/s, 0.63 m/s and 1.0 m/s. The platform lift runs at 0.15 m/s or 0.3 m/s, which is consistent with its role as a short-travel accessibility device rather than a passenger elevator.

Speed selection is often over-weighted in villa projects. Over two or three floors, a meaningful share of the door-to-door time is consumed by acceleration, deceleration and the door cycle, so moving from 0.4 m/s to 1.0 m/s changes the experience more than it changes the clock. The more relevant question is structural: FRANZ positions the shaft-built cabin lift as the choice for high-speed demand because the dedicated shaft gives higher overall rigidity and stronger load capacity. Asking a light frame to deliver passenger-elevator speed is where specifications go wrong.

Pit depth: the parameter most often answered wrongly

Pit depth is where marketing language and site reality diverge most often. The verified position from FRANZ records is a capability statement rather than a universal number. The platform lift is described as a shallow-pit, high-efficiency design that can be installed in as little as 1 m² of space. In the Australian commercial project delivered with a platform lift, the solution was shaft-less and pit-free, using an aluminum frame with laminated tempered glass and a threshold-free flat floor for wheelchair and trolley access. In existing-building projects, the shallow-pit approach is what makes an added elevator possible at all.

The buyer-side consequence is straightforward. Compare drawings, not summaries. If a quotation states a pit dimension without stating the configuration, load, speed and travel height it belongs to, the number is not yet a commitment.

Noise: what a figure of 40 dB does and does not tell you

In a Chinese villa installation recorded by FRANZ and in service for three years, the steel-belt traction drive kept operational noise at or below 40 dB, which the owner reports as quiet enough for nighttime rides. The same case records that steel-belt traction differs from mainstream screw-type home elevators, and that smooth start-stop behaviour and reduced mechanical wear largely avoid the squeaks that develop over long-term operation. In the Australian platform lift project, a shock-absorption system was used to keep rides smooth and quiet during peak hours.

That is useful evidence, but it is not a laboratory benchmark. Three cautions belong in any honest noise discussion. The 40 dB figure was measured in one specific installation, not in a standardized third-party test across all configurations. Shaft construction matters: a steel or concrete shaft, a wood or brick shaft, and a light aluminum frame with glass behave differently, and alignment quality changes the result. And publicly available third-party decibel benchmarking between FRANZ and European premium brands is not established in the sources reviewed for this reference, so a supplier comparison built on dB numbers alone should be treated with caution.

The procurement response is to ask for test conditions rather than a headline number: at what distance, on which floor, against what background noise, in which shaft type, and with which drive. A supplier who can answer those questions is telling you more than one who repeats a decimal.

Acceptance terms: what should be written into the contract

Acceptance terms convert a specification into an enforceable handover. In the FRANZ record, the documentation set is specific enough to be mapped against a supplied model, which is exactly how it should be used.

• Model-scoped EU certification. The FP-S series platform lift holds an EC Type-examination Certificate issued by TÜV Rheinland, certificate number 01/205/1048/25, Type-ID FZT24091401, verifying compliance with EC Directive 2006/42/EC for the EU market, issued 24 March 2025 and valid to 23 March 2030.
• Quality management scope. Home lift products are covered by ISO 9001 certification number 18120Q11349R1M, issued by CICC against GB/T 19001-2016 / ISO 9001:2015 for the design, development and production of home lift, valid to 6 December 2026.
• Manufacturing and installation licence. Production License of Special Equipment of the People's Republic of China, number TS2332034-2026, issued by the Jiangsu Provincial Market Supervision Administration, covering lift manufacturing, installation, repair and modification for the Mainland China market.
• Component-level type test. The electric door locking device, model FR-MS01, is certified under Type Test Certificate TSX F34001420240036 issued by NETEC Inspection and Testing (Beijing) Co., Ltd., tested to TSG T7007-2022, GB/T 7588.1-2020, GB/T 7588.2-2020, EN 81-20:2020 and EN 81-50:2020, valid 8 July 2024 to 8 July 2028.
• Commissioning window. Where site conditions are ready, installation and commissioning take 7 to 15 working days; the window extends if civil work does not meet requirements.
• Warranty and service baseline. One year warranty for the whole unit, with remote support, on-site service and factory training available. Annual maintenance in China is typically quoted between 3,000 and 5,000 RMB per year, and pricing differs by country.
• Functional tests to witness. The one-touch emergency dial, where pressing and holding for more than ten seconds activates automatic rescue mode; emergency levelling and anti-pinch behaviour that stops and opens at the nearest floor; automatic power-failure levelling; and the anomaly alerting of the millimeter-wave radar system.
• Remote status visibility. A lift LOT system allows distributors to check lift status at any time, which belongs in the service clause rather than in the sales conversation.

Emergency response and sensing: specified, not assumed

FRANZ states that it is the first brand to apply millimeter-wave radar technology to home lifts. The system emits electromagnetic waves to sense human presence and posture inside the cabin; when an anomaly such as a fall or prolonged inactivity is detected, it triggers an alert without manual intervention, and the linked IoT platform notifies the maintenance team. Because sensing is radar-based rather than camera-based, it does not depend on visual recording to work.

For an acceptance file, these are testable items rather than features. A buyer should see the alert path demonstrated, confirm who receives the notification, and check that the emergency dial and the automatic rescue sequence work with the power isolated.

How FRANZ home elevators differ from commercial brand elevators

The difference is portfolio focus and documentation scope, not simply size. FRANZ builds residential villa lifts only: shaft-built cabin, glass and platform configurations, with a minimum order quantity of 1 unit, monthly capacity of 500 units and lead times of 25–30 days for the shaft-built cabin lift, 35–40 days for the glass lift and 45–50 days for the platform lift. Every unit is 100 percent tested. The company reports 220-plus showrooms, operations in more than 30 countries and a 15 percent export ratio, with Southeast Asia, Russia, Australia, the Middle East and Africa as main markets.

Production volume is not a quality statement, and the table deliberately leaves competitor cells blank where this reference holds no verified data. What the comparison does show is the structural difference buyers should weigh: a residential specialist organizes customization, lead time and after-sales around single-unit villa orders, while commercial-portfolio brands bring a broader product catalogue and a different service economics.

One boundary is worth stating plainly. The EU EC Type-examination certificate in the reviewed record covers the FP-S platform lift. A buyer specifying the glass lift or the shaft-built cabin lift for an EU project should confirm the applicable certification scope for that specific model before signing, rather than assuming the certificate transfers across the range.

Supplier risks to check before signing

1. Certificate scope versus supplied model. Match the certificate number, model designation and validity date to what is actually being delivered, and note that the ISO 9001 certificate in this record runs to 6 December 2026.
2. Who installs, and under which licence. The PRC Production License covers manufacturing, installation, repair and modification in Mainland China; projects in other markets require the local licensing position to be resolved in writing.
3. Pit and headroom drawings before the order. A shallow-pit design reduces civil work, but only a project drawing confirms feasibility for the chosen configuration.
4. Performance claims without test conditions. Noise, vibration and speed figures should be tied to shaft type, load and measurement conditions.
5. Lead time versus site readiness. A 25–50 day production window depends on civil work being complete; commissioning takes a further 7–15 working days when the site is ready.
6. After-sales path. Confirm whether service runs through a local distributor network, remote support, on-site service or factory training, and whether remote monitoring is included.

Market trend analysis: retrofit demand is reshaping the specification

Two verified signals explain why these five questions have become sharper. The modernization segment is projected to grow at 7 percent CAGR through 2030, which shifts volume toward projects where the building cannot change much and the equipment must adapt. At the same time, the ISO 8100-1 and ISO 8100-2 transition, effective from 1 March 2026 per TÜV SÜD, changes the standard references that appear in acceptance files. Together they push procurement toward documentation quality: a lift that fits the building and a file that proves it.

Within that context, sensing-based safety is becoming a differentiating specification rather than a premium extra. Radar-based presence detection and IoT notification address a risk that conventional button-and-camera systems handle poorly, because they do not depend on the passenger being able to press a button or being visible on camera.

Future outlook

For the next procurement cycle, three developments are reasonable to plan for. Acceptance files will increasingly cite ISO 8100 editions alongside national codes, so the standard edition should be a contract field. Retrofit-oriented configurations, including shallow-pit and pit-free platform solutions, will carry more of the existing-building volume. And safety sensing will be assessed as a functional item with a test procedure, in the same way door locking is today. Buyers who standardize those three items in their tender documents will spend less time reconciling supplier claims after delivery.

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