Hidrolik Machine

Pump unit for passenger lifts
Low noise, high comfort

Mechanical pump units for passenger lifts designed and manufactured by Wittur Hydraulic Drives, featuring a very low noise and a very high level of comfort during operation.
Deploying more than 30 years of experience, Wittur HD has optimized each technical feature of its range of pump units.

•  Compact structure
•  Pump placement designed to optimize quantity of oil used
•  Pump mounted on dumpers
•  Easy maintenance of the valve section: modular valve body placed in an easily accessible position
•  Valve group featuring aluminum pistons with hardened surface. They offer high reliability and fast feedback to obtain smooth car travel
•  Valve group uses a patented silencing system “Kit silenzio” to reduce operating noise
•  Available range up to 45 bar
•  External interception valve with integrated filter can be moved to ease connection from each side: layout design becomes very simple
•  Hand pump for emergency upwards travel is integrated in the valve group, in an easily accessible position. A remotely controlled version is also available
•  Can be placed in a cabinet, with connection on the left or on the right, both in the from side or in the back side
•  Wide range of models which covers any application (from 8 to 300 l/min., from 1,5 to 29,4 kW

 

Pump units for passenger lifts

Pump units for passenger lifts using electronic valves, featuring a very low noise and a very high level of comfort during operation.
They offer a higher efficiency and anenergy saving of up to 30% when compared to traditional pump units installed on short travel systems.

•  Compact structure
•  Pump placement designed to optimise quantity of oil used
•  Pump mounted on dumpers
•  The electronic valve, by modulating flows and timings, transfers less heat to oil during operation: significant energy saving
•  The electronic valve compensates oil viscosity variations due to changes in temperature: smooth and constantperformance is guaranteed
•  Easy maintenance of the valve section; the valve is ideal for high traffic installations
•  Very accurate control of leveling to floor
•  External interception valve with integrated filter can be moved to ease connection from each side: layout design becomes very simple
•  Hand pump for emergency upwards travel is integrated in the valve group, in an easily accessible position. A remotely controlled version is also available
•  Can be placed in a cabinet, with connection on the left or on the right, both in the from side or in the back side
•  Wide range of models which covers any application (from 8 to 250 l/min., from 1.8 to 29.4 kW)
•  Available in an optional version using a heat resistant drive
•  Extended range of models can be supplied upon specific request  

 

Pump units for freight lifts

Pump units for freight lifts using electronic valves, featuring sturdiness, reliability and maximum load capability (up to 70 t in total, 4 cylinder 1:1).

•  The electronic valve, by modulating flows and timings, transfers less heat to oil during operation: significant energy saving
•  The electronic valve compensates oil viscosity variations due to changes in temperature: smooth and constant performance is guaranteed
•  Easy maintenance of the valve section; the valve is ideal for heavy load installations
•  Very accurate control of leveling to floor
•  Pump mounted on dumpers
•  External interception valve can be moved to ease connection from each side: layout design becomes very simple
•  Hand pump for emergency upwards travel is integrated in the valve group, in an easily accessible position.
•  Can be placed in a cabinet, with connection on the left or on the right, both in the from side or in the back side
•  Wide range of models which covers any application (from 180 to 600 l/min., from 11 to 58.8 kW)
•  Available in an optional version using a heat resistant drive
•  Extended range of models can be supplied on request

 

Hi Hydraulic Pump
With Inverter

Pump unit equipped with inverter. Efficiency optimization by frequency control in upward and downward travel.
 

•  State-of-the-art ride comfort
•  Up to 40% energy savings compared to standard pump units with mechanical valves
•  More than 50% reduction in oil heating compared to standard pump units
•  Easy balancing of travel performance and efficiency via microprocessor controller
•  board
•  Upper limit of instantaneous power consumption adjustable by inverter software
•  Lower power factor penalties (cos φ) resulting in lower energy costs
•  Low noise level during operation
•  Accurate control of floor levelling
•  Valve designed for high traffic installations

 

Pump unit "Minilift" for lifting platforms

Mechanical pump unit for lifting platforms (compliant with EN81-41 norms) designed and manufactured by Wittur Hydraulic Drives, to easily overcome any architectural barrier using a more compact system very easy to install compared to a traditional lift.

A lifting platform is a high valuesolution for prestigious homes with two or more floors.

•  Extremely compact structure
•  Typically used in 2 to 5 stops installations
•  Pump placement designed to optimize quantity of oil used
•  Pump suspended using rubber supports: very low operating noise
•  Easy maintenance of the valve section: modular valve body placed in an easily accessible position
•  Valve group featuring aluminum pistons with hardened surface. They offer high reliability and fast feedback to obtain smooth car travel
•  External interception valve can be moved to ease connection from each side: layout design becomes very simple
•  Hand pump for emergency upwards travel is integrated in the valve group, in an easily accessible position
•  Can be placed in a cabinet, with connection on the left or on the right, both in the from side or in the back side
•  Range of models from 8 to 35 l/min., from 1.5 to 3.3 kW

 

Hydraulic MRL system in cabinet

The Compact hydraulic system in cabinet MRL for machine roomless lift installations combines mechanical pump unit and hydraulic cylinder in a compact package, easy and quick to install.

Deploying more than 30 years of experience, Wittur Hydraulic Drives has optimized the coupling between hydraulic pump and cylinder to obtain the best performance and the lowest consumption.
The compact structure of MRL enables installation in a standard cabinet: no dedicated machine room is required for the lift.

•  Compact structure
•  Placed in a cabinet, with connection on the left or on the right, both in the from side or in the back side
•  Cabinet according to CE Standards
•  Pump placement designed to optimize quantity of oil used
•  Pump mounted on dumpers
•  Easy maintenance of the valve section: modular valve body placed in an easily accessible position
•  Valve group featuring aluminum pistons with hardened surface. They offer high reliability and fast feedback to obtain smooth car travel
•  Valve group uses a patented silencing system “Kit silenzio” to reduce operating noise
•  External interception valve with integrated filter can be moved to ease connection from each side: layout design becomes very simple
•  Hand pump for emergency upwards travel is integrated in the valve group, in an easily accessible position
•  Wide range of models: from 55 to 150 l/min., from 3,3 kW to 14,7 kW

Indirect cylinders
Maximum flexibility

Cylinders for indirect 2:1 or 4:1 lift applications, which offer the maximum flexibility in the field of hydraulic driven lifts. A very simple structure accounts for a very high operational reliability.
Supplied with centring dowel upon request.

•  A chrome finishing for the rod is available as option to protect it from wear and tear and oxidation
•  Produced exclusively using non-welded rod tube
•  Also available in a version with double protection layer
•  Tested for use with environment-friendly biodegradable oils
•  Available in “slim” version using a reduced quantity of oil
•  Execution with 1 or 2 seams
•  Rod protection for travels longer than 8 m in seamless execution
•  Overspeed safety valve certified by TUV according to EN81.2 standards

Direct cylinders
Total reliability

Cylinders for direct 1:1 lift applications, particularly suitable for short travels and heavy loads. A very simple structure accounts for a very high operational reliability.
They are supplied complete with basement support plate and upper oscillating plate according to Wittur Hydraulic Drives standard dimensions.

•  A chrome finishing for the rod is available as option to protect it from wear and tear and oxidation
•  Produced exclusively using non-welded rod tube
•  Available in central acting or side acting version according to requirements
•  Also available in a version with double protection layer
•  Tested for use with environment-friendly biodegradable oils
•  Available in “slim” version using a reduced quantity of oil
•  Execution with 1 or 2 seams
•  Rod protection for travels longer than 8 m in seamless execution
•  Overspeed safety valve certified by TUV according to EN81.2 standards

Telescopic cylinders
Maximum compactness

Hydraulic cylinders for both direct and indirect lift applications.

A telescopic structure in 2 or 3 sections accounts for side footprint and height reduction inside the shaft. Expensive excavation works can thus be avoided.

•  A chrome finishing for the rod is available as option to protect it from wear and tear and oxidation
•  Produced exclusively using non-welded rod tube
•  Available in central acting or side acting version according to requirements
•  Also available in a version with double protection layer
•  Tested for use with environment-friendly biodegradable oils
•  Overspeed safety valve certified by TUV according to EN81.2 standards

LOAD: 480 kg - 2 Stops - 3000 mm
Type: Indirect / Speed 0.5 m/s

 

HYDRAULIC GROUPS FOR RESIDENTIAL BUILDING

Load: 6 passengers
Stops: 2

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