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Aluminum Bridge Cranes

Schmalz aluminum overhead crane systems offer impressive low friction operation. A favorable weight-load ratio ensures that even heavy work pieces are handled effortlessly. The equal distribution of loads on all the supporting rollers prevents the transport trolleys from tilting. The modular design allows the crane system to be attached to any steel structure or other superstructure.

Application

Modular crane system for flexible and cost-effective assembly of individual crane solutions

Use in almost all internal production, assembly and logistics processes for manual or automated handling of loads of all kinds

Particularly suitable for large workspaces

Lift capacity up to 1,200 kg

Product Inquiry

        
Ergonomic handling thanks to outstanding low-friction operation and low moving mass

        
Reduction of throughput times due to high working speed and positioning accuracy

Cost-efficient adaptation to individual requirements and lift capacities

        
Maximum safety through independent strength calculation of all load-bearing components according to the FEM method

Designed according to the latest state of the art (DIN EN 13001)

(1) Transport trolley

Connection of crane bridge and hoist

Electrical traction drive as an option

(2) Aluminum crane bridge

(3) Chain hoist

(4) Energy supply

Trailing cable or conductor line

(5) Aluminum crane runway

Lightweight and robust

Weights from 3 kg/m

(6) Modular ceiling suspension system

Optimum connection to existing building structures

Lightweight and Robust Aluminum Section

Weight optimized extruded section with hollow chamber geometry (weight from 3 kg/m)
Inner web for reinforced vertical support
Material: Aluminum natural anodized (EN AW 60 63 T66)
Five section sizes for loads weighing up to 1,200 kg
Section lengths up to 8,000 mm can be extended as needed using rail connectors
Dovetail for retroactive mounting of variable end stops
Lateral grooves for connecting accessories

End plate

Attractive closing off of sections
Protection from dirt

Reinforcement section

Increases range and suspension distance by up to 50% while maintaining the same maximum load
Increases the maximum load for installed crane systems

Rail connector

Positive and non positive connection of sections for crane runways or bridges larger than 8,000 mm
Full load capacity at the interface

Transport Trolley with Optimal Running Performance

Stable aluminum pressure cast construction for loads weighing up to 1,000 kg
Only one transport trolley required to connect the crane bridge and hoist; thus less parts
Double transport trolley for loads weighing up to 1,200 kg
Optimal running performance thanks to large rollers made from high performance plastic
Upward and downward forces absorbed by only six rollers
Optimized for low ceiling heights thanks to its compact size
Eccentric pressure rollers to compensate vertical forces in telescopic booms

Crane bridge suspension element

Maximum load 2,000 kg
Swivel mounted as standard
Easy replacement of the joint
90° design for standard crane bridge; 0° design for telescopic rails

Fixed end stops

Prevents transport trolleys from falling out
Positive locking for maximum safety
Tool free mounting

Variable end stops

Easy adjustment of the crane bridge and hoist travel path
Demarcation of several working areas and the cable storage device
Can be mounted at a later stage

Antishock end stops

Gentle stopping of transport trolleys if end stops have to be reached e.g. for dynamic applications and telescopic jibs

Distance connectors

Stiffener for mounting rigid load and lifting axes
Available for all section sizes

Service station

Easy replacement of transport trolleys, particularly for long crane systems and for crane systems with several crane bridges
Available for all section sizes
Fully resilient depending on the section size

Low headroom module

Raises crane bridge to the level of the crane runway
Reduces the overall height of crane systems for low ceiling heights or transit roads

Spring return for telescopic jib incl. damping

Returns telescopic jibs after reaching into difficult to access areas
Optimal work flow thanks to the independent return of the jib

Safety cables

Further secures crane bridges, crane runways and hoists by means of steel cables

Electrical Traction Drive

Drive loads weighing up to 800 kg in overhead crane systems
Suitable for all section sizes
Quick movement and precise positioning thanks to two continuously adjustable driving speeds
Low noise and vibration levels due to Soft Start and Soft Stop
Adjustable travel path by means of a hub switch
Very good grip thanks to a large surface drive wheel (no slip through)
Optimal connection to Schmalz chain hoists thanks to current feed through

Suspended, height-adjustable

Most common suspension
Compensation of height differences in the ceiling structure by up to 30 mm

Rigid, height-adjustable

Absorption of upward forces for telescopes, lifting axes or manipulators

Rigid short 0°

Reduction of the overall height for low ceiling heights

Rigid short 90°

90° rotated design to reduce the overall height for low ceiling heights

Anchor plates for concrete ceilings

Special high-performance anchors with approval for dynamic loading
Required concrete quality C20/C25, concrete thickness min. 200 mm

Clasp for wooden girders and laminated beams

Safe mounting on wooden girders and laminated beams

Extension by up to 2,000 mm

Extension of the suspension to max. 2,000 mm for high ceilings
Diagonal brace required for stabilization

Diagonal suspension

Connection for ceiling structures with inclines greater than 8°
Diagonal brace required for stabilization

Conductor Line

Wireless energy supply for electrical devices supplied in the crane such as the chain hoist or vacuum lifting device
Profit from usable ceiling height as there are no cable storage devices or cable loops to cause interference
Ideal for crane systems with several bridges
Low surplus loading of the crane system thanks to lightweight plastic rails
Easy mounting thanks to adapted suspensions and spring loaded connectors for copper contacts

Trailing Cable

Most common form of energy supply via cable trolleys in the aluminum section
Suitable for power cables (flat cables) and hoses (vacuum and compressed air)
Easy mounting thanks to pre-assembled cable trolley

Maximum dimensions: approx. 8 x 30 m
Maximum load: approx. 1200kg (depending on crane girder's own weight)
Weight of smallest crane profile: only 3,0 kg/m

Type	Height [mm]	Weight [kg/m]	Max. lift capacity [kg]	Area moment of inertia [cm⁴] l_z	Area moment of inertia [cm⁴] l_y	Moment of resistance [kg] w_z	Moment of resistance [kg] w_y
SRA-100	100	3.0	125	89	114	25	20
SRA-105	105	4.8	250	246	264	48	52
SRA-140	140	6.5	500	377	652	92	75
SRA-180	180	8.2	800	447	1,279	141	89
SRA-220	220	9.9	1,200	529	2,266	204	106
SRA-80-V*	80	4.0	-	143	177	-	-

*Reinforcement section suitable for SRA-140, SRA-180 and SRA-220

High Load Capacity for Sections

The load diagram can be used for reference when selecting the section size while taking a specific maximum load and the suspension distances into account. The suspension distances stated are based on a deflection of 1:300, the common value for calculating crane systems. Smaller deflection values such as 1:400 may be required for certain applications.

Example: With a maximum load of 200 kg and a predetermined suspension distance of 5,000 mm the profile SRA-140 is used. The maximum deflection is then 17 mm (5,000 mm / 300).

Transport Trolley

Type	Height [mm]	Length [mm]	Width [mm]	Weight [kg]	Max. lift capacity [kg] tension	Max. lift capacity [kg] pressure
Transport trolley TRO-R-SRA-GAB-1000	125	240	55	1.4	1,000	1,000
Double transport trolley TRO-R-SRA-GAB-1200*	150	500	75	6.5	1,200	1,200

*Subject to technical changes without notice

Drive

cf. 2nd chart in gallery

Type	Max. drive load [kg]	Speed [m/min]	Weight [kg]	Max. power [kW]	Duty cycle [%]
Hoist drive (1)	800	0 - 40	19	0,25	60
Crane bridge drive (2)	800	0 - 40	34	0,5	60
Complete drive (3)	800	0 - 40	53	0,75	60

Technical information

Length	5 standard lengths of 500 mm to 4,000 mm (can be expanded as needed)
Number of poles	4-pole
Max. rated currents	40 A for 100 % duty cycle; 52 A for 60 % duty cycle
Ambient temperatures	-30 °C to +60 °C
Flammability	Difficult to ignite (DIN 4102-1 class B1)
Protection rating	IP 23
Certification	UL certified

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