Delivering glazing projects efficiently: mini cranes and vacuum lifters from Luibl Rental

Glass facades, steel-glass structures and laminated panes for atriums, office towers and industrial halls rarely fall below the 500-kilo mark today. Triple glazing in an aluminium frame for a standard-sized office building quickly reaches 380 to 600 kg per element; special panes for lobbies and showrooms regularly exceed 800 kg. Anyone who has to bring such loads to the installation position on the fifth floor via a stairwell or across a courtyard will fail with a mobile crane because of the set-up area, with an aerial work platform because of the load capacity and with muscle power because of the Dutch health and safety rules.

The answer lies in the combination of mini crane and vacuum lifter - two machines that each have their own speciality and together become the only economical solution as soon as the work location is tight, the ground sensitive and the load demanding. Luibl Rental offers a coordinated rental package for exactly this application profile. The mini crane fleet is based on the Maeda series, with models ranging from the 600 mm narrow MC104C to the heavy-duty MC815C with more than 8 tonnes of load capacity. The matching vacuum technology is provided by sister brand Uplifter within the Luibl Group - glass vacuum lifters with 1- and 2-circuit systems up to 1,200 kg load capacity that can be attached seamlessly to the load hook of any Maeda crane.

This pillar page provides the in-depth view: which technological synergy between crane and vacuum lifter determines project success? Which load capacity reserves are actually usable at which outreach? And what does practice look like with an 800 kg facade element in a city centre?

A mini crane alone lifts - a vacuum lifter alone holds. Only the combination of both systems enables what counts in glazing work: the low-contact, precisely guided positioning of large glass elements in confined conditions. Three technological properties must work together reliably between crane and attachment.

Proportional control as a prerequisite for millimetre work

The first key is the crane's proportional control. On a Maeda MK3053CB, for example, all radio remote control joysticks can be adjusted steplessly between standstill and maximum speed. In glazing work this is not a comfort feature but a basic requirement. A 600 kg laminated safety glass pane hanging from the crane tip via a vacuum lifter swings out with every jerky movement of the hoist winch - with an inertia that releases several hundred joules of kinetic energy at a swing radius of half a metre. A single contact of the swinging pane with the steel frame or an adjacent glass edge leads to breakage.

The crane's proportional radio remote control allows the operator to carry out lifting, lowering, slewing and boom movements in the finest speed increments. Maeda calls the system on its models 'fully proportional control with HBC radio' - an established industry standard that operators master precisely after a short familiarisation period.

Vacuum safety circuit: 1-circuit versus 2-circuit system

On the vacuum lifter side, the number of independent vacuum circuits determines the permissible range of use. A 1-circuit system generates the vacuum via a single pump and a shared tank for all suction pads. It is light, low-maintenance and sufficient for supervised indoor installation.

However, as soon as lifting takes place above people or traffic routes or higher than 2 metres, the 2-circuit system is the appropriate choice in line with applicable Dutch health and safety rules and NEN-EN standards. Here, two completely separate vacuum circuits work with their own pumps, tanks and pressure gauges - if one circuit fails, the second still holds the load securely. The Uplifter models of the UPG series from UPG600 and the Glassworker GW1125 have this redundancy as standard, with mains-independent battery power. This is the minimum standard for any external facade installation.

Pick & Carry function: moving loads while travelling

The third point of synergy is the crane's Pick & Carry function. Conventional mobile cranes set up on outriggers and lift from a standstill. A Maeda MC405C-3, by contrast, can transport a load while travelling if it lies within the free load chart - with the boom retracted and the machine in travel mode. This means glass elements can be brought from the delivery point at the site fence directly to the installation position without having to be stored or repositioned in between.

Combined with the low ground pressure of the rubber tracks - 0.52 kg/cm2 on the MC405C-3 - the result is a system that can also cross freshly laid parquet, marble or natural stone floors in foyers and showrooms without leaving pressure marks. The combination of Pick & Carry and low ground pressure eliminates the intermediate steps that take up most of the installation time with conventional lifting technology.

Load moment limiter: the invisible layer of protection

Every Maeda mini crane in the Luibl rental fleet has an electronic load moment limiter (LML) that compares the product of load and radius in real time with the permissible load moment of the current boom position. If the value is exceeded, the system automatically cuts out the critical movement - typically further extension or lowering of the boom. On models with an articulating jib such as the MK1033CW1 or MK3053CB, the LML also monitors the knuckle angle, because the load moment curve behaves non-linearly at the knuckle transitions, and this is where the greatest risk of overload arises.

The LML is not a convenience feature but mandatory equipment under NEN-EN 13000 and a prerequisite for the periodic inspection of work equipment under the Working Conditions Decree. At Luibl Rental, no mini crane leaves the depot without the LML having been verified with calibrated test weights as part of the periodic inspection in line with applicable Dutch health and safety rules.

Choosing the right mini crane for a glazing project is not a matter of gut feeling but a calculation with three variables: maximum load in kg, required outreach in m and lift height in m. Transport width, ground pressure and drive type come on top as knock-out criteria as soon as door openings, sensitive floors or low-emission indoor areas are involved.

Maeda rental fleet at Luibl Rental - key data of the main models

Maeda MC104C - The ultra-compact indoor specialist

• Maximum load capacity: 990 kg at 1.1 m radius

• Maximum lift height: 5.5 m

• Maximum reach: 5.1 m at 200 kg

• Transport width: 600 mm - fits through standard doors and into goods lifts

• Drive: electric motor, zero local emissions

• Application profile: indoor installation in lobbies, stairwells, atriums, renovated older buildings

Maeda MC174C - More power in a compact design

• Maximum load capacity: 1,720 kg

• Maximum lift height: 5.5 m

• Maximum working reach: 5.2 m

• Transport width: 590 mm

• Application profile: heavier glass elements in confined indoor spaces, installation of steel beams in existing buildings

Maeda MK1033CW1 - Articulating jib specialist with slim body

• Maximum load capacity: 995 kg at 11.3 m lift height and 9.9 m working range

• Fully automatic articulating jib for work over obstacles

• Transport width: 750 mm

• Application profile: glass installation behind projections, in courtyards, over roof overhangs

Maeda MK3053CB - Battery-powered professional with articulating jib

• Maximum load capacity: 2,800 kg at 1.8 m radius

• Maximum lift height: 16.95 m

• Maximum working range: 14.3 m

• Drive: battery, fully electric, zero local emissions

• Radio remote control with fully proportional operation

• Application profile: medium-weight facade installation, emission-sensitive areas, courtyards

Maeda MC405C-3 - All-rounder for outdoor sites

• Maximum load capacity: 3,830 kg

• Maximum hook height: 16.80 m

• Ground pressure: 0.52 kg/cm2 - protects sensitive surfaces

• Gradeability: 20 degrees

• Travel speed: up to 3.3 km/h

• Application profile: heavy facade elements, outdoor installation on sensitive ground

Maeda MC815C - Heavy-duty class

• Maximum load capacity: 8,090 kg at 2.4 m radius

• Maximum hook height: 19.6 m (optionally with hydraulic jib up to 25.5 m lift height)

• Maximum working range: 18.8 m at 340 kg load

• Dead weight: 9,460 kg

• Application profile: large facade elements, heavy special glazing, industrial roof light strips

Knuckle transitions: what the load chart does not tell you

A frequently underestimated issue with articulating mini cranes are the so-called knuckle transitions in the load chart. While the chart suggests smooth load capacity curves across lift height and radius, in reality there are transition zones in which the permissible load changes abruptly - wherever the articulating jib changes its geometry (folded versus unfolded) or the main boom passes a critical angle threshold.

In practice this means: a Maeda MK3053CB can easily lift an 800 kg load at 5 m radius, but at 5.5 m radius with the same boom angle only 650 kg, and when switching to use of the articulating jib the permissible load drops to 580 kg at an identical geometric position. The LML protects against overload, but an experienced operator plans the lifting sequence so that these knuckle transitions are not passed through in the critical load range - this prevents unwanted cut-outs in the middle of a movement.

At Luibl Rental, the handover of every articulating mini crane includes a machine-specific operator instruction with the original load chart. Anyone taking over a mini crane without this instruction takes on a risk that has no place on site.

Vacuum lifters from sister brand Uplifter - load capacity classes

The vacuum technology within the Luibl Group comes from Uplifter, the German specialist in vacuum lifting technology, which has been working with the Luibl Rental fleet on a project basis since its acquisition by the Luibl Group. The main glass vacuum lifter models for combination with Maeda mini cranes:

Uplifter UPG350

• Load capacity: 350 kg

• Can be attached to almost any machine with a load hook

• Single-circuit system

• Application profile: standard indoor glazing, window installation

Uplifter UPG600 / UPG1000

• Load capacity: 600 kg / 1,000 kg

• Dual-circuit system with redundant vacuum supply

• Battery power supply for mains-independent operation

• Application profile: medium-weight facade elements, outdoor installation

Uplifter glass vacuum lifter UPG1200

• Load capacity: up to 1,200 kg

• Dual-circuit system with up to 12 suction pads

• Suction pads can be positioned variably using extensions

• Radio remote control with electric tilting unit

• Silicone-free suction pads (no marks on the pane)

• Application profile: heavy glass facades, laminated safety glass, special glazing

Uplifter Glassworker GW1125

• Load capacity: max. 2,000 kg

• Motorised 360-degree rotation, hydraulic 90-degree tilting

• Two independent vacuum circuits with double safety per circuit

• Reserve vacuum tank, mains-independent 12 V battery power supply

• Application profile: large-format glass facades, industrial glass, heavy metal sheets

Anyone renting a Maeda mini crane from Luibl can receive the matching vacuum system from sister company Uplifter in the same delivery on request. The combinations are technically validated and follow the applicable safety standards.

Theory is decided on site. A representative scenario from urban glazing shows where the real value of the mini crane and vacuum lifter combination lies.

Starting point

An office building in the city centre is getting a new shop front of laminated safety glass on the ground floor. Six elements of 3.20 m x 2.10 m, each weighing 800 kg, are to be installed while the neighbouring shops remain open. Delivery is from the street by low-loader, which may only stop for 30 minutes. Between the low-loader and the installation position there are 18 metres, a 90-degree bend, a cobblestone section and the building entrance with a sensitive natural stone floor.

Setting up a mobile crane is ruled out: the usable carriageway width is 4.2 m, and a full road closure during opening hours cannot be permitted. An aerial work platform is ruled out because it lacks the load capacity. Manual installation with vacuum lifting beams and personnel is out of the question anyway because of the load and the requirements of Dutch occupational health and safety legislation (Working Conditions Act and Working Conditions Decree).

Solution

Luibl Rental deploys the combination of a Maeda MC405C-3 (3,830 kg load capacity, low ground pressure) and an Uplifter UPG1200 glass vacuum lifter (1,200 kg, dual-circuit system, radio remote control). Both machines are delivered on a dedicated low-loader from the Luibl fleet - joint logistics, one handover appointment.

Step 1 - Delivery and positioning: the MC405C-3 drives off the low-loader and crosses the entrance lobby with its boom folded (ground pressure 0.52 kg/cm2 - no pressure marks in the natural stone). It is set up inside the building next to the installation point.

Step 2 - Picking up the glass element: the UPG1200 is attached to the crane's load hook. The radio remote control allows independent control of lifting, slewing and tilting of the vacuum lifter. The first 800 kg element is taken from the low-loader, and the MC405C-3 uses its pick-and-carry function: with the load suspended and at reduced speed, the crane travels to the installation position.

Step 3 - Positioning: at the installation position, the UPG1200 hydraulically tilts the glass element from the horizontal transport position to the vertical installation position. The electric tilting unit does this in one controlled movement. Using the crane's proportional controls, the element is placed onto the locating bolts of the steel frame - tolerance +/-2 mm.

Step 4 - Repetition: the remaining five elements follow the same sequence. Total installation time for six elements: 4.5 hours, including two breaks for battery maintenance of the UPG1200.

Result

What would have cost several days of permits and a complete loss of trade for the shops with a mobile crane and a road closure took half a working day with the Maeda-Uplifter combination. The low-loader stop at the site fence stayed within the 30-minute limit. No floor damage, no noise nuisance for residents - the Maeda MC405C-3 runs on diesel, but can be supplemented with the electrically powered battery machines when the indoor phase has to run without exhaust fumes.

Under applicable Dutch health and safety rules and the Working Conditions Decree, Chapter 7 (work equipment), glass installation is an operation that requires a risk assessment. Three components must be documented before work begins.

Personal protective equipment (PPE)

The following applies to everyone involved in the lift:

• Cut-resistant gloves class F (highest protection level against cuts, EN 388)

• Safety shoes S3 with penetration-resistant sole and toe cap

• Safety helmet EN 397

• Safety glasses when working under the load or when grinding/drilling at the glass edge

• Fall arrest harness and lanyard for work in areas with a fall hazard, in line with the rules for work at height under the Working Conditions Decree

For outdoor installation in areas with a fall hazard, a separate rescue plan with a defined rescue scenario is also required.

Inspection checklists before lifting

Before the first load is picked up, the following points are checked in writing and countersigned by the responsible operator:

• Current periodic inspection of the crane under the Working Conditions Decree, with a valid inspection sticker

• Current inspection of the vacuum lifter in line with applicable Dutch health and safety rules, with a documented function test of both vacuum circuits

• Load chart of the crane for the planned lifting configuration (radius, lift height, boom angle)

• Written confirmation of the load weight from the glass manufacturer

• Assessment of the set-up surface: load-bearing capacity of the ground in kg/cm2, compared with the ground pressure of the machine at full load

• Weather log: wind speed (critical value for glass installation typically 6 m/s near ground level, varying with the wind-exposed area of the pane), precipitation, visibility

• Operator qualification: the required competence of the crane operator in line with applicable Dutch health and safety rules, plus instruction for the vacuum lifter

Luibl Rental delivers every mini crane with a current inspection report and a short safety briefing at the handover location. Responsibility for the site-specific risk assessment remains with the contractor carrying out the work.

Operator qualification: what is required

To operate a mini crane in the Netherlands, the operator needs the required competence in line with applicable Dutch health and safety rules, supplemented by the specific machine instruction for the model concerned. Anyone working with a vacuum lifter also needs instruction on the vacuum lifting system.

Luibl Rental provides the operator briefing on handover for both the mini crane and the vacuum lifter. Ensuring the required competence of the operator remains the responsibility of the employer.

Maeda mini cranes are not standard machines - their dead weight of between 1.9 tonnes (MC104C) and 9.5 tonnes (MC815C) and their special dimensions call for adapted transport solutions. Luibl Rental operates its own low-loader fleet, which brings machines and vacuum technology to your site in a single delivery.

Delivery areas include the Netherlands, Germany, Austria, Switzerland, Poland, the Czech Republic, Italy, Hungary and other European markets. Delivery throughout the Netherlands - including for requests at short notice. For large projects and long-term rentals, terms with integrated periodic inspection and annual maintenance are available - no extra effort for the hirer, no downtime due to expired inspection intervals.

On-site service is available throughout the rental period. In the event of technical problems or operating questions, a technician can come to the site at short notice.

For vacuum technology, the parallel logistics of sister brand Uplifter apply: glass vacuum lifters are delivered together with the mini crane, and technical advice on lifter selection and safety equipment is provided by the Uplifter team in close coordination with Luibl Rental.

An honest assessment is part of any advice. The combination of mini crane and vacuum lifter is the right solution if at least three of the following conditions apply:

• Glass elements weighing more than 200 kg need to be installed

• The site is inaccessible to mobile cranes (indoor areas, courtyards, listed buildings, narrow access routes)

• The ground is pressure-sensitive (natural stone, parquet, freshly laid floors, car park decks)

• Installation must be low-noise or with lower emissions than Stage III engines (hospital, residential area during night work, sensitive customer areas)

• A 360-degree pick-and-carry movement is required, in which the load travels from the delivery point to the installation position without intermediate re-rigging

The combination is not the right solution if the glass element weighs less than 80 kg and can be installed safely by hand by two people with a manual vacuum lifter, if a mobile crane can be set up without difficulty (open-air industrial construction, unobstructed large sites) or if the lift height is well above 25 m - in that case classic cranes or roto telehandlers are the more economical choice. For lift heights between 15 and 30 metres, Luibl's roto telehandlers are often worth considering as an alternative.

The requirements for glass installation are harmonised internationally. EN 13000 sets out the safety requirements for mobile cranes, EN 1492-1 covers the testing of lifting slings, EN 13155 the requirements for non-fixed load lifting attachments - glass vacuum lifters fall directly under this standard. Anyone working in the Netherlands, Germany, Austria, Switzerland or beyond has to comply with these standards anyway - in the Netherlands, Dutch occupational health and safety legislation (Working Conditions Act and Working Conditions Decree) provides the legal framework.

On site, the trend towards electric drives with zero local emissions continues to gain momentum. Luibl Rental is keeping pace with the electric version of the MC104C, the battery-powered MK3053CB and, in future, further hybrid models. For inner-city sites with municipal noise requirements and for emission-sensitive areas such as food production or hospitals, these machines are the obvious solution.

Glazing is precision work under physical constraints that rarely leave room for manoeuvre. Choosing the right lifting technology is not a question of the daily rental price but of project safety, compliance with the Working Conditions Act and the Working Conditions Decree and, ultimately, economic efficiency over the entire construction phase.

With its Maeda mini crane fleet and the vacuum technology available through sister company Uplifter, Luibl Rental offers a coordinated complete system that is hard to match in the rental market in Central and Western Europe. Own low-loaders, delivery throughout the Netherlands, integrated periodic inspection for long-term rentals and an operator briefing on handover are not marketing terms but operational reality - and exactly what makes the difference between project success and an insurance claim with an 800 kg glass element on the fifth floor.

Enquiries and advice: contact the Luibl team via the contact form. For vacuum technology and glass lifters, your enquiry is passed directly to the Uplifter specialists - one contact, one quote, one delivery process.

What load capacity do I need for a standard glass facade pane?

A triple laminated safety glass pane measuring 3.0 m x 1.5 m weighs approx. 280 to 360 kg, depending on glass thickness and the aluminium frame. With a safety factor of 1.5, the vacuum lifter should handle at least 540 kg and the crane at least 600 kg at the required radius. The specific sizing is based on the load chart before the rental enquiry.

How much does it cost to rent a Maeda mini crane per day?

The daily rate for a Maeda MC104C starts in the compact model range and rises considerably up to the heavy-duty class of the MC815C. Specific daily rates depend on the rental period, delivery area and additional services such as a vacuum lifter. Luibl Rental prepares project-specific quotes without flat rates - this is standard for special equipment.

Do I need separate instructions for the mini crane and the vacuum lifter?

Yes. The required competence of the operator in line with applicable Dutch health and safety rules covers crane operation. A separate instruction is needed for the vacuum lifter. Luibl Rental gives both operator briefings on handover, often combined in one appointment.

Can I rent a mini crane and a vacuum lifter separately?

Technically, yes. In practice, a combined rental is the more economical solution in almost all cases, because the logistics (low-loader, handover appointment, return) are bundled. For pure load-hook applications without glass or panels, renting a vacuum lifter is of course unnecessary.

How quickly can Luibl deliver?

For standard requests throughout the Netherlands, usually at short notice. For special urban jobs with an unusual configuration, a longer preparation time may be needed - an early request helps.