Are electric chain hoists from GIS suitable for outdoors use?
The GP / GPM series feature as standard protection class IP 65 (dust-tight and protected against water jets), which allows outdoor use without any problems. The GCH series can optionally be upgraded to IP 65.

 

Why does GIS use contactor controls for electric chain hoists?
Electric chain hoists and motorised trolleys from GIS are equipped with a 42 V contactor control as standard. With the control voltage of 42 V, the limit switch for the upper and lower hook position of the chain hoist is driven. Due to safety reasons low voltage with 42 V is used as a control voltage instead of using the operating voltage (110V-600V).

Can you recommend an electric chain hoist that is very quiet?
The GIS electric chain GPM 250 from the new series GP is with 65 db. (measuring distance 1 m), thanks to its 3-stage gearbox with helical gearing very quiet compared to commercially available chain hoists.

What are the advantages of profile-steel chains?
In comparison with traditional round-steel chains, profile-steel chains as used with the electric chain hoist GPM have a significantly higher safety factor which reduces the wear out and extends the service life.

What capacities are single-phase electric chain hoists suitable for?
GIS 1 phases - electric chain hoists can be used for a lifting capacity of 2000 kg. For maximum capacities the hoisting speed is reduced to 2 m/min. Power driven trolleys in 1 phase design are available for the electric chain hoists.

What is the temperature range for the use of electric chain hoists?
GIS electric chain hoists in the standard version are suitable for the temperature range - 15° to + 50°. For ambient temperatures below the minimum and above the maximum special versions are used.

Are trolleys equipped with a fall protection?
All GIS manual and electric trolleys are equipped with a safety rail.

Can GIS trolleys manoeuvre around curve radii?
Depending on the chassis type curve radii can be driven. Detailed information can be found on our technical sketch.
EHF/EMFE  50   =   minimum curve radius 1'200 mm
EHF/EMFE 150   =   minimum curve radius 1'500 mm
EHF/EMFE 300   =   minimum curve radius 1'800 mm
EHF/EMFE 500   =   minimum curve radius 1'800 mm

Which hollow profiles are better - steel or aluminium?
Crane systems with hollow steel are less expensive to run smoothly thanks to plastic rollers and are also suitable for larger span widths of the crane bridge. Aluminium hollow profiles are used for lighter loads up to 630 kg. They offer excellent smooth running characteristics improved handling at higher ergonomics and thus shorter cycle times.
 

Do crane systems have to be checked on a regular basis, and if so by whom?
As the operator of a crane system or an electric chain hoist, you are obliged under Swiss law, to do everything necessary for the prevention of occupational accidents. You must adhere to the specifications of the manufacturer in the operating instructions. Depending on the country you are also obliged to check equipment and cranes periodically by a competent person (e.g. Germany: at least once a year).

Neither the ceiling nor the existing upper construction are able to carry the load of a crane system. Are there alternatives to the installation of a crane system?
By means of free standing steel columns, a crane system can be built from the bottom (free standing system). Depending on the area, which a crane has to cover, a slewing wall crane or a slewing pillar cranes is an economic alternative.

Do you also have crane solutions for the food industry?
For the food industry, the chemical industry or for waste water treatment plants, where special demands are placed on corrosion resistance, profiles can be used in a hot-dip galvanized version. All screws and components are as standard galvanized. The hoists can be supplied in a corrosion-resistant version.

Is it possible to lift loads outside of the suspension points of the crane system?
To cover confined areas the GISKB crane systems can be designed as special versions with telescopic or overhang devices. This allows the user to move loads beyond the crane runway.
 

What power-supply systems are available?

• trailing cable in profile (standard)
• trailing cable in C-rail
• busbar inside or outside
• energy chain for supply of power and compressed air (vacuum ejector)

Can easily permeable goods such as wooden panels be transported using vacuum?
With the vacuum hoists GN with side channel seal which generates a high volume flow, also slightly air-permeable or porous loads can be transported.
 

Can vacuum hoists turn or tilt panels?
For the vacuum-hoisting systems GN and GH turning and/or tilting is available as an option.

Does GIS have a cost-efficient solution for the vertical transportation of glass panels?
Assuming that a compressed air supply is present, the device GHGE is a cost effective solution for the vertical transport of air-impermeable materials such as glass, metal and plastic.

What are the advantages of vacuum-lifting systems from GIS in comparison with competing products?
By our customers with the central control unit it is especially appreciated that the vacuum generation as well as all hoists and movements can be controlled. This simplifies operation, as it is not necessary to work with two independent control units.

What capacities can be transported using the vacuum version?
Our standard product range covers a capacity range from 500 kg. Higher payloads up to 1000 kg or more are possible in a special version, however.

Is there an alternative to vacuum-lifting devices when it comes to lifting heavy and bulky wooden panels?
For the vertical transport of panels of all kinds up to a load capacity of 250 kg (gripper opening 0 - 60 mm), the use of a gripper plate in combination with a GIS electric chain hoist is an inexpensive alternative. The panel gripper is particularly suitable for limited ceiling height.

How can panels be rotated by 180° ?
As a special version, we offer vacuum equipment for turning panels or doors 180° up to a loading capacity of 500 kg. Thereby, the rear processing of the work piece is possible without any Problems.
 

I found a shelf storage operation unit on your website. Do you produce these?
Yes, for more than 25 years we have been manufacturing shelf storage operation units. Depending on the cargo, the shelf storage operation unit, adapted to local conditions, is equipped with a vacuum lifting system or lifting device.

When is the use of a remote control recommended?
For large and bulky goods or when transporting the load in poorly or not accessible workspaces, we recommend using a remote control. This can conveniently control up to six travelling and lifting movements from a safe distance.

When is the use of a frequency converter recommended?
The frequency converter is particularly suitable for oscillating free transportation and for precise positioning of loads. Through the soft start the whole crane system is also protected, which increases the service life of all components subject to significant wear.

What is an roving pendent and when is it used?
In crane systems with roving pendents, the control switch is operated in a C-rail parallel to the crane track and can be moved independently of the load. It is used mainly in big and bulky loads where the crane operator wants to move independent of the load.