The Metron technical catalogue runs to 56 pages, but a client needs it to answer three questions: which series will fit the shaft, what the lift is built from and what documents come with it. Those answers are below. Details on dimensions, cars and installation are on separate pages of this section.
The factory in Serres
Metron S.A. operates in the industrial area of Serres in northern Greece. The company started in 1995 as a local lift firm and now, according to its catalogue, sells to more than 50 countries. The factory builds the complete lift: car frames, cars, doors and controllers, as well as modernization kits for old lifts. It has offices in Athens, Thessaloniki, Poland and Germany.
We supply, install and maintain Metron lifts. Our part covers the site survey, series selection, approval of drawings with the factory, installation, commissioning and putting into service.
Series and their limits
The catalogue divides the lifts into three groups. Machine-room-less traction lifts: MRL-G UX and MRL UX SLH (UX series), MRL G Starter, MRL G LPH and MRL L LPH (Flex series). Traction lifts with a machine room: MR with a geared or gearless traction machine. Hydraulic lifts: passenger lifts, the Habitat home lift, a small freight platform, vehicle lifts and passenger and freight lifts.
| Series | Rated load, kg | Speed, m/s | Max. travel, m | Max. stops | Min. pit, mm | Min. headroom, mm |
|---|---|---|---|---|---|---|
| MRL-G UX | 300-1000 | 1,0 | 30 | 12 | 1050 | 3400 |
| MRL UX SLH | 450-630 | 1,0 | 30 | 12 | 1050 | 2600 |
| MRL G Starter | 300-1600 | 0,63-1,6 | 45 | 16 | 1050 | 3400 |
| MRL G LPH | 300-1000 | 1,0 | 30 | 12 | 550 | 2900 |
| MRL L LPH | 300-1000 | 1,0 | 35 | 16 | 550 | 2900 |
| MR, geared | 300-2000 | 0,63-1,6 | 45 | 16 | 600 | 2950 |
| MR, gearless | 300-1600 | 0,63-1,6 | 30 | 12 | 600 | 3100 |
| Hydraulic | 180-1600 | 0,2-0,8 | 21 | 8 | 350 | 2480 |
| Habitat, home lift | 300-400 | 0,15 | 12 | 5 | 120 | 2600 |
| Vehicle lift, passenger and freight lift | 2000-3500 | 0,15-0,3 | 12 | 5 | 1200-1300 | 3500-3600 |
The table gives the smallest pit and headroom values. Heavier cars need more: the MRL G Starter for 1600 kg requires a 1150 mm pit and 3500 mm of headroom. The catalogue header for the MRL L LPH states a pit from 500 mm, but the smallest value in the dimension tables is 550 mm, and we go by the tables. Anything outside the catalogue limits is calculated by the factory separately.
Which series suits which shaft
For a new building where the shaft is still being designed, the MRL-G UX and MRL G Starter are suitable: pit from 1050 mm, headroom from 3400 mm, no machine room, and the controller cabinet stands next to the landing door on the top floor. The UX is limited to 1000 kg and a speed of 1 m/s. The Starter carries up to 1600 kg, runs at up to 1.6 m/s and serves up to 16 stops over 45 m of travel.
For existing buildings with a shallow pit or a low slab above the shaft there are the MRL G LPH, MRL L LPH and MRL UX SLH. They have a page of their own: Metron lifts for a shallow pit and low headroom. If a machine room remains above the shaft, it can be used with an MR series lift. The factory recommends hydraulic lifts for buildings of up to eight floors. Car and shaft dimensions for each rated load are collected in the model range tables.
What the lift is built from
The factory names its component suppliers in the catalogue. The traction machine is gearless, carries the Metron brand and is made together with Permagsa of Spain or Montanari of Italy. It is fitted with a Heidenhain encoder, and its brakes are certified as a means of protection against unintended car movement. The overspeed governor and safety gear come from Dynatech (Spain), the 6.5 mm diameter ropes from Gustav Wolf (Germany), and the guide shoes and buffers from ETN or P+S (Germany).
Geared lifts with a machine room use a Sassi traction machine (Italy). Hydraulic lifts have Bucher iValve (Switzerland) or Blain EV100 (Germany) valves, an Elmo motor, a Settima pump and an Omar or Hydronic hydraulic cylinder with a rupture valve, all from Italy.
Here is how this looks in the factory specification for a 630 kg passenger lift with nine stops: a Permagsa Gs150 traction machine rated at 5.1 kW, five 6.5 mm ropes, a concrete counterweight and a 5.5 kW Metron controller with a 380 V supply.
Controller and wiring
Metron makes its controller itself. It is designed for 16 stops and speeds of up to 1.6 m/s and controls a single lift or a group. Parameters are shown on an LCD screen and protected by a password, and the menu comes in six languages. The last hundred faults stay in memory, so the technician can see what happened to the lift before arriving. The software is updated from a laptop via USB. The controller monitors the motor temperature and charges the emergency lighting battery. Remote monitoring and a split cabinet for machine-room-less lifts are added by the factory on request.
The wiring arrives pre-assembled, so on site it only has to be routed and connected.
Documents
The factory's quality assurance system is certified to Module H1 of the Lifts Directive 2014/33/EU (Annex XI). Certificate No. 150413/2607 was issued by the Greek body QMSCERT, notified body number 1617. Scope of the certificate: design, manufacture, installation, final inspection and testing of hydraulic and traction lifts for passengers and freight. The assessment was carried out against EN 81-20:2020, EN 81-50:2020 and EN 81-21:2022. The certificate is valid until 28 September 2027, subject to annual surveillance audits.
The Habitat home lift and the small freight platform travel at 0.15 m/s and are certified under the Machinery Directive 2006/42/EC, so their documents are different. In Ukraine we carry out the conformity assessment under the Technical Regulation on Lifts on site.
Catalogue and brochure
Joint technical catalogue in Ukrainian: Metron - LIFTPORTAL, traction and hydraulic lifts (PDF, 56 pages, 4.1 MB). A shorter version covering machine-room-less lifts only: Metron - LIFTPORTAL brochure (PDF, 25 pages, 2.7 MB).
Finishes are covered on the page "Cars, finishes and options", and building preparation and common questions on the page "Installation and customer questions".
Send us the width, depth, pit and headroom of the shaft, and we will tell you which Metron series will fit it: leave a request. Phone: +38 050 585-39-28.
