Assembly and testing

lines for the actuator

technology

ASSEMBLY & TESTING AS INTEGRATED PROCESS

We are one of the 10 leading German special-purpose machine manufacturers. Assembly and testing technology for complex components and products for actuator systems is our key skill. For decades, the automotive industry and its subcontractors have relied on highly efficient and precise assembly solutions developed by Strama-MPS. We have always worked on ambitious projects which gave us a chance to build our present know-how of the systems as well as our expert knowledge of the technology and processes involved. The expertise thus gained over many decades allows us to find solutions for even the most complex tasks and requirements and to finally implement them – starting from manual and semi-automatic work systems to highly automated complete solutions with integrated testing technology.

Integrable processes

Our assembly and testing machines can be used to implement and combine various processes. 

 

Joining technology e.g. laser welding • friction welding • ultrasonic welding • butt-welding with heat resistors • resistance welding • inert gas-shielded welding • clinching • rolling and tumbling • riveting and crimping • joining and pressing • inductive soldering • bolting • plastic injection molding • gluing • punch riveting • hot gas stamping

Dosing technology: e.g. greases • oils • glues • sealing components

 

Testing technology: e.g. light • pressure • force • distance and travel • acceleration • torque • weight • sound • magnetism • voltage • current • resistance • leak tightness • flow • flow rate • volume • temperature • optics

 

Marking:  e.g. laser marking • labelling • scribe marking • dot peen marking • inkjet printing • hot stamping • notching • pad printing

Solutions for actuator technology

Our machines and lines are designed for maximum product quality, performance and system availability. We manufacture assembly and testing machines for complex components and products in the field of actuator technology such as:

MECHANICAL PRODUCTS

Turbocharger

Strama-MPS turbocharger lines offer impressive product quality for each individual machine as well as maximum availability. Changeover kits for quick-change over are automatically identified by the control. 

 

LEARN MORE

Cam shaft

Our assembly and testing machines for both standard cam shafts as well as for sliding cam shafts stand out due to their high technical availability. Depending on the concept required, we can offer quick changeover systems or fully automated assembly machines which do not require any changeover at all for both Otto or Diesel engines. Thanks to our perfectly synchronized assembly, testing and component feed systems, we are able to present solutions with cycle times of less than 30 seconds.

Highlights:

  • Handling of a multitude of different types without changeover being required
  • Specific automatic component feed system
  • Force-path controlled assembly processes
  • Integrated oiling, pressing, measuring and marking processes
  • Flexible parts removal and reworking concepts
  • High traceability by connection to MES

High-pressure fuel injection valve

An injection needle is a high-precision component used in an injection system. Strama-MPS produces highly-automated machines for the assembly of such injection needles which optimally fulfill our customer’s high quality standards. Our machines are able to achieve highest precision (µm) in aligning a partially coated ball over the centroid of an area by means of high-precision camera systems and by subsequently laser welding the ball onto the needle. All process data are filed and evaluated by the MES in accordance with current Industry 4.0 standards.

Pneumatic cylinder

A wide variety of pneumatic cylinders can be produced in a large scale. Our fully-automated, highly flexible assembly machine can be divided into three sections. Our linear transfer conveyors are equipped with direct drives and reduce nonproductive time (changeover of workpiece carriers) to a minimum. The central master MES controls each and any movement within the line. Fully-automatic component feed systems using cameras and robots are used to meet the requirements of a wide range of parts which need to be handled. All implemented processes such as joining, pressing, greasing, screw-fitting, roller-burnishing, gluing and press-fitting are designed to be highly flexible.

 

Throttle valve

Our semi-automatic assembly machine for throttle valve manufacturers focuses on the lean concept. This is why the line is designed in a U-shape thus allowing for external component logistics (at the rear of the line). Both the plastic laser welding of contour areas by segments with three optics, as well as the hot stamping of plastic pins are highlights of the line. The quality of the parts is tested by means of an air mass flow rate test using a laminar flow system.

Pressure control valve

Assembly of high-pressure control valves requires a detailed know-how of complex joining processes with residual air gap of only a few thousandth of a millimeter. Besides assembly tasks in the classical sense our machines also carry out the required testing tasks such as the setting of a pressure/flow rate curve or performing a leakage test; in addition they also transmit quality data to the customer’s in-house master computer system.

Ball valve

This assembly and testing machine is designed to interface with a machining center but also allows for manual loading by the operator. The line is designed for a wide variety of assembly techniques such as gluing, screw-fitting, greasing, joining and O-ring assembly. In combination with the respective quality testing processes (glue quantity test, leakage testing, torque testing) our machine is able to ensure optimum product quality for our customers. The manufacturing process is completed by the subsequent packing process.

Fitting

The assembly and testing machine is a highly effective machine which can be used for a wide range of products. A continuous and uninterrupted quality monitoring is achieved by the combination of a force-displacement monitoring carried out during the highly dynamic joining processes and a subsequent leakage test. A linear interface to the upstream machining center and the downstream packing unit, which forms the end of the line, allows for the manufacture of a ready-to-ship product without any outside logistics being required.

ELECTRIC PRODUCTS

Current tripping device

Our assembly lines for current tripping devices are complex rapid-cycle machines with circulating workpiece carriers. Automatic palletizing systems as well as step feeders and vibrating spiral conveyors are used for feeding and discharging of the workpiece. The assembly machines allow for implementation of the following processes: Wire flaming with hydrogen flame, laser welding, TIG welding, TIG soldering, resistance welding, spring force testing, testing of the trigger characteristics, force measurement, thermal ageing, inductive ageing. The machine can be set up for a wide variety of component types and allows for the manufacturing of one piece of a kind only just as well as for large-scale production and thus provides maximum flexibility for our customers.

Safety circuit breaker

Our highly flexible assembly and testing machines are used to assemble a wide range of safety circuit breakers which are then individually set up and tested. A skillful integration of manual workstations also allows for the production of customized small series and/or emergency production. Synchronization and dynamic adjustment processes can minimize product tolerances resulting from individual part variances.

DC-drive

Quick workpiece carrier changeover times and gap determination as an inline process are the highlights of our DC-drive assembly machines. High-precision solenoid drives can be produced in very short cycle times thanks to individual upsetting and magnetizing processes. The machines integrate perfectly into our customer’s fully-automatic logistics systems.

AC / DC contactor

Our assembly machines for safety circuit breakers stand out due to their high flexibility when it comes to manufacturing individual components and their need to be changed over for the manufacture of non-standard components only; additionally, they feature fully automatic component feed systems and a completely autonomous quality monitoring system.

The best solution for our customers

INDUSTRY 4.0

The integrated MES is used to record and analyze all operational, machine and process data thus allowing optimum control of all subsequent processes as well as an intelligent flow of parts. Quality is continuously measured during ongoing processes. Component quality is controlled in real time, i.e. before rejects are even produced. Permanent recording of the machine condition also provides data for predictive maintenance.

LEAN PRODUCTION

We are your one-stop shop for planning, design and layout of the entire process chain including catenation of all stations and optimization of the material flow. The results are convincing: Highest possible output and flexibility, maximum availability and minimum space requirements thanks to a perfect line layout.

INDIVIDUAL

Our lines are designed for maximum output and for cycle times which can be perfectly adjusted to your processes. No matter your strategy: You will be impressed by the high system availability of our machines.

Contact Persons

Georg Pelg

COO BU Actuator Technology

P +49 9421 739-209

Andreas Höcherl

Head of Project

Management & Sales

P +49 9421 739-322

Markus Aiwanger

Head of Project

Management & Sales

P +49 9421 739-473