Wittur OL35 / E / M

Landing doors

Since 1977 Wittur supplies the lift industry with versatile and high-quality doors.
Design flexibility, coupled with full range of certifications, makes Wittur landing doors suitable for every application.
A wide variety of available finishings and executions allows them to fit in every environment: from residential to exclusive office buildings, from exterior installations to luxurious marine projects, from industrial buildings to hospitals.

Car doors

Since 1977 Wittur has been providing the lift industry with versatile and high-quality doors. More than 30 years later Wittur is the leading company in the lift doors segment, with state-of-the-art technical solutions and unparalleled product range. Regardless of whatever your lift requires - a round door with panoramic panels rather than a straight or a folding one - Wittur can supply the best solution for your needs.

Overspeed Governors

EOS
OL25

Research for innovative solutions and rigid control of product quality are key features of Wittur Safeties.
Wittur overspeed governors can cover a broad range of rated loads and speeds and can be applied both to machine roomless and traditional installations. Our overspeed governors can be engaged at any point along perimeter of pulley and assure high life time due to limited pulley wear.

Car slings

Wittur offers a wide range of car and counterweight frames. Modularly conceived, these components are very flexible in terms of rated load, height and width. The wide range of accessories includes safety gears, suspension pulleys, compensation chain and travelling cable hangers, allowing configurations suitable for different shaft layouts, lift designs and rated speeds. Wittur can also supply special frames for tailored projects.

Cars

Wittur aims at fulfilling customers’ expectations in terms of car design elegance, extension of product range, configuration flexibility and installation easiness.

The offer includes a wide selection of cars, both for passengers and goods transportation, with applications from the residential to the most exclusive buildings.

Safety Devices

Research for innovative solutions and rigid product quality control are key features of Wittur Safeties.
The product range includes uni- and bi-directional, instantaneous and progressive safety gears.
Devices for ascending car overspeed protection are also available. The products are suitable both for new equipments or modernization.

Wittur UCM Solutions

According to EN81-1/2 A3 and EN81-21 A1 (new lifts in existing buildings), new lifts installed after January 1st 2012 must be equipped with a system to prevent a car moving away from the floor with the landing door not in the locked position and the car door not in the closed position.
A UCM solution can be certified as a system (type examination certificate) or composed by tested components.
The UCM unit shall detect unintended movement of the car, shall cause the car to stop and keep it stopped.

Shaft Accessories

All shaft accessories are important to secure smooth operation and long lifetime to the lift. That's why Wittur offers a wide variety of shaft accessories: guide shoes (sliding or roller type), proximity sensors, guide rail brackets, pulleys, pit ladders, buffers

Hydraulic drives

Safety devices

Lift Machines

Systems

MRM W Line

Medium speed and rise governor

OL35 / E / M

The OL35 detects overspeed by its flyweight mechanism and engages the safety gear on the entire circumference of brake mechanism.
This brake mechanism is pre-adjusted and limits the brake-force to protect the synchronization of the safety gear from excessive stress to the linkage.

Medium speed and rise governor

OL35 / E / M

Down-direction only
Best mechanical overspeed governor for mainstream applications
External encoder option for absolute car position acquisition
Continuous traction between rope and pulley during tripping prevents excessive wear to the rope
Safety gear is always activated on a pre-determined force
Remote control for MRL- applications
Various installation possibilities outside shaft, wall, guide rail …
Upside down applicable
Available for all global major elevator norms and directives
Available as a package with tension weights, accessories, fixings
Complete traceability of the production of main components from raw material to final product with coding system stamped to each unit to enhance safety standard
Very high safety factor which exceed EN 81 rules
Compliant with requirements of Lift Directive and EN 81-20/50:2014
100% tested and checked at factory

Technical features

Type (900540)			OL35	OL35E	OL35M
travel height (recommendation)	min. max.	TH	- 80 m	- 165 m	40 m 165 m
Max. distance between overspeed governor and tension weight:			85 m	170 m	170 m
Rated speed	d = 6/6,5 d = 8	NS NS	0,3-2,5 m/s 0,36-2,5 m/s	0,3-3,0 m/s 0,36-3,0 m/s	0,3-2,5 m/s
Brake force of the governor	min. max.		> 500 N < 1000 N	> 800 N < 1300 N	>1100 N <1600 N
Tension force of the tension weight	min. max.		250 N 350 N	600 N 800 N	600 N 800 N
Rope pulley diameter		DB	200 / 203 mm 262 mm		200 mm
Weight of OL		max. 25 kg
Rope diameter steel wire rope (DIN EN12385-1/5)		d	6 / 6,5 / 8 mm fibre core or full steel		6 mm full steel
suggested type			6x19 o r8x19		6x19
rope quality	min. max.		1570 N/mm² 1770 N/mm²	1770 N/mm² 1960 N/mm²	1770 N/mm² 1960 N/mm²
Operating temperature				-5°C ... +55°C
Storage temperature				-40°C ... +70°C
Air humidity				<98% / 40°C
Protection classification				IP2x