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STIWA makes use of FAULHABER micromotors in compact automation system


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STIWA's compact automation system the LTM-CI, which is optimized for small part assembly.

The compact LTM-CI from STIWA is optimized for small half meeting. | Supply: FAULHABER

STIWA is an skilled developer of compact mechatronic methods that may carry out a collection of consecutive product steps autonomously. The Austrian machine producer mentioned its LTM-CI is optimized for small components meeting. 

Compact automation will be important for finish customers that wish to automate however don’t have the house for a big system. As well as, these compact methods can excel at dealing with small parts. STIWA designed its system for merchandise with a spatial diagonal of as much as 30 mm (1.1 in.). 

“A buyer within the west of Austria produces dampers for a well known furnishings retailer that wants tens of millions of those components yearly,” mentioned Roland Schiermayr, head of the Automation Analysis and Improvement Division at STIWA.

“The corporate needed to purchase a brand new manufacturing machine,” he mentioned. “The present machine was 10 m [32.8 ft.] lengthy – for the manufacturing of small parts measuring just some centimeters in size, this was merely an excessive amount of for the manufacturing website in a slender Alpine valley. This was the impetus for us to totally make the most of all miniaturization potentialities.”

For its compact automation methods, the firm makes use of linear and rotating micromotors from FAULHABER to carry out key duties.


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Contained in the LTM-CI

Computerized actions throughout the LTM-CI occur so shortly that the human eye can barely sustain with the person automation steps. First, the system feeds particular person components from storage containers and separates them utilizing a shaker. It then accurately positions these components on a conveyor belt so it’s prepared for the subsequent manufacturing step. 

Subsequent, the system transports the parts to the respective stations. There, delicate grippers choose them up and be part of them collectively, or course of them differently. STIWA compares the actions of the system to a dance, combining the graceful transport of conveyor belts with the fast actions of grippers. 

This whole system, relying on the configuration and gear wanted, is simply 3 to 4 m (9.8 to 13.1 ft.) lengthy. STIWA made the bases of the system from a rigidly linked transport system, and the opposite system parts rely on the wants and specs of the client. 

“We will combine as much as 22 operate modules, every measuring 90 mm [3.5 in.] in width, for various work steps,” mentioned Christian Mersnik, who was concerned in improvement from Day 1. “These features embrace, for instance, choose and place, laser welding with as much as 5 levels of freedom, screw insertion, press-in operations, labeling, in addition to testing and measuring processes.”

STIWA compact automation will get buyer curiosity

STIWA mentioned that its compact automation system has been properly acquired by prospects. Its prospects respect the uniform, easy actions of the system. In addition they say that these actions don’t include impacts or vibrations, which ensures a secure course of. 

FAULHABER's BX4 brushless motor series.

The BX4 brushless motor collection. | Supply: FAULHABER

The corporate mentioned the LTM-CI can cut back cycle instances to nearly simply half a second, which brings a major leap in productiveness. STIWA famous that the drives used within the FAULHABER actuators make a significant contribution to the graceful motion of the machine and its excessive velocity. 

The LTM-CI makes use of the LM 1247 linear actuator motor from FAULHABER. This actuator performs its job at as much as 20 factors within the system, together with stopper models and grippers. STIWA claimed that one specific power of the FAULHABER linear motors is its excessive velocity. At simply 12.5 mm (0.4 in.) broad and 19.1 mm (0.7 in.) excessive, the drive can produce a steady drive of three.6 Newtons. 

The system additionally makes use of FAULHABER’s brushless BX4 2250 collection of motors. Within the portal dealing with of the compact automation, this motor drives the swivel models that transfer the instruments or parts to a selected place. 

“At this level within the system, we require an especially excessive degree of precision and repeatability,” Mersnik mentioned. “This is the reason it was an vital argument for us that FAULHABER was in a position to ship this motor with an identical multiturn absolute encoder. The indicators from this encoder are obligatory to realize the excessive manufacturing high quality and for high quality assurance.”

STIWA ensures its compact automation prospects fault-free operation of a minimum of 60 million strokes. This quantity needs to be achieved by all of the shifting components throughout the system, which is one more reason why the corporate picked FAULHABER as its companion. 

“We topic our personal components in addition to moreover bought parts to endurance checks,” Schiermayr mentioned. “In these checks, we try to destroy the components by means of put on and unfavorable circumstances. Solely these components that survive the endurance checks are put in within the machines.”

“The motors from FAULHABER have proven that they’ll meet such excessive necessities,” he added. “They assist us to realize our personal peak values with minimal house necessities and the shortest cycle instances.”

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