Basic elevator terminology — investor's guide
A concise reference to the elevator vocabulary that an architect, investor or property manager will encounter when scoping, quoting or operating an elevator project. Focused on the European market (EN 81 standards, Polish UDT regulations).
Shaft (elevator hoistway)
The vertical enclosure where the elevator cabin and counterweight travel. Defined by inside dimensions (width × depth), total travel height, and number of stops. Shaft dimensions determine cabin size, payload and even whether MRL configuration is possible. In European elevator vocabulary the term hoistway (US) is functionally equivalent.
Pit
The lowest part of the shaft, below the lowest landing — accommodates buffers, counterweight overrun and maintenance access. Standard pit depth is typically 1100–1400 mm. When less is available (historic buildings, low ground floors) a low pit configuration per PN-EN 81-21 is required — see PROENSO's Polish guide on low pit elevators.
Headroom (overhead clearance)
The clear distance between the top landing and the shaft ceiling — accommodates cabin overrun, safety governors and machine (in non-MRL). Standard headroom depends on speed and load, typically 3500–4500 mm for passenger elevators. When less is available, low headroom configuration per PN-EN 81-21 applies.
MRL — machine-room-less
Configuration where the drive motor and control system are installed inside the shaft (typically at the top), eliminating the need for a separate machine room above or beside the shaft. MRL is dominant for new construction — saves space, simplifies architecture, reduces capital cost. Most major manufacturers offer MRL across cabin sizes.
Cabin (car)
The enclosed compartment that transports passengers or goods. Defined by internal dimensions (width × depth × height), payload (in kg or persons), door configuration (one side, two opposite sides, or 90° through), and interior finishes. Cabin design accounts for accessibility — for elevators serving the public, EN 81-70 sets minimum dimensions for wheelchair access.
Payload (rated load)
The maximum weight the elevator is rated to carry, in kilograms. Typical residential elevators: 320–800 kg (4–10 persons). Commercial / hospital elevators: 1000–2500 kg. Freight elevators: 2000–5000+ kg. Payload determines cabin size, drive specification and shaft dimensions.
Drive types
Two main families: electric (traction) — most common for passenger elevators, uses ropes/belts over a sheave driven by an electric motor; and hydraulic — uses an oil-pressure piston, common for low-rise applications and freight. Modern electric drives are permanent-magnet gearless — high efficiency, smooth ride.
EN 81 standards family
The European elevator safety standards. Key parts: EN 81-20 (passenger elevators — general safety requirements), EN 81-50 (component design rules), EN 81-21 (low pit / low headroom in existing buildings), EN 81-28 (remote alarm — GSM communication), EN 81-58 (door fire resistance), EN 81-70 (accessibility), EN 81-80 (modernization risk assessment). In Poland these are published as PN-EN 81-x.
Directive 2014/33/EU (Lifts Directive)
The EU regulation governing market placement of new elevators. Every new elevator placed on the market in the EU must meet this directive, undergo conformity assessment (often via notified body), bear CE marking, and have a Declaration of Conformity. Components (safety gears, governors, locks, buffers) are also covered with their own certification.
UDT — Urząd Dozoru Technicznego
Poland's Office of Technical Inspection. Every elevator in Poland is subject to UDT supervision: pre-commissioning acceptance, periodic inspections (typically every 12 months for passenger elevators), inspections after major modifications, and special inspections after equipment lifetime (resurs) expiry. UDT also operates UDT-CERT — a notified body for Directive 2014/33/EU.
Resurs UTB (equipment lifetime)
A Polish-specific concept — the calculated usage lifetime of lifting equipment, defined by load cycles. When resurs is exhausted, a special UDT inspection is required to determine whether the equipment can continue operation, requires modernization, or must be replaced. Resurs applies to all UTB (urządzenia transportu bliskiego = lifting equipment) under Polish regulation.
Notified body (jednostka notyfikowana)
Independent organization authorized by an EU member state to perform conformity assessment under EU directives. For elevators (Directive 2014/33/EU), Polish notified bodies include UDT-CERT, LiftCert and TDT. Manufacturers and importers engage notified bodies for module verification before CE marking.
Cabin types — through vs single-entrance
Most cabins have a single entrance. Through cabins have entrances on two walls — either opposite (180°) for buildings with double access, or at 90° for corner configurations. Through cabins increase cabin width requirements and require careful door interlocking.
GSM alarm system
Mandatory under EN 81-28 — bidirectional voice communication from the cabin to a monitoring centre for passenger trapping situations. Requires SIM provisioning, monthly subscription, monitoring centre contract, periodic test calls. PROENSO maintenance contracts include GSM management.
For deeper engineering vocabulary see PROENSO's full glossary — currently in Polish: 249-term elevator glossary →
Discuss a project with PROENSO
PROENSO engineering team designs, integrates and services elevators across Poland and Europe. Discuss your project — investor brief, modernization assessment, accessibility analysis.