Systems for the accurate measurement of discrete parts from 10 mm up to approx. 5 m
μMETER-SLM systems measure discrete part lengths from approx. 10 mm to nearly 5 m during the longitudinal movement of the material to be measured. SLM systems are usually integrated into the production line following a cutting unit and monitor every item produced at full transport speed. SLM systems are offered as a consistent transmitter and receiver array for different maximum unit lengths and are permanently calibrated ex works. With a typical measurement accuracy of +/- 0.1 mm per meter measuring length despite material movement, the SLM system is unique in the market of serial measurement technology. SLM systems are used for production optimization, good/bad sorting and documentation of the delivery status of discrete parts. SLM systems are maintenance-free, permanently accurate and measure largely independent of material. Typical measurement materials are profiles, tubes, plates, sheets, boards, beams, bolts, … made of the most diverse materials.
Product Types – SLM Systems for a highly accurate measurement of discrete parts from 10 mm up to approx. 5 m
Example sensor – for short lengths up to 126 mm
Example sensor – for long lengths up to 4860 mm
Technical Data – SLM Systems for a highly accurate measurement of discrete parts from 10 mm up to approx. 5 m
µMETER | SLM-L0.1 | SLM-L4.8 |
System Components | Transmitter and Receiver Arrays | Transmitter and Receiver Arrays |
Types | shortest SLM System | longest currently available SLM System |
Measurement Material Length | 10 mm to 126 mm | 10 mm to 4.860 mm |
Systematical Measurement Accuracy | ± 0,1 mm/m | ± 0,1 mm/m |
Repetitive Accuracy | ± 0,03 mm (confidence interval 1σ) | |
SLM Arrangement of Transmitter and Receiver to each other | horizontal, vertical or diagonal | |
V-Measurement Range | 0,1 m/min → 250 m/min | 0,1 m/min → 100 m/min (higher Vmax on request) |
Measurement Distance between Transmitter and Receiver Array | 150 mm to 1.000 mm | |
Interfaces | 1 x RS-485 | |
I/Os | Input: Start, Gate, Calibration Output: Status |
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I/O Type | RS‐422 Gauge | |
Available Data | Speed, Length, Signal Quality, Status, Valid Measurement | |
Feldbus | Optional: Profibus-DP, ProfiNet‐RT, Ethernet‐IP, … |
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Protection Class | Sensor Lines: IP50 | |
Dimensions (LxWxH) |
Sensor Lines: 30x30mm Profil cross section, Bosch-Rexroth, Length depending on maximum measurement material length | |
Power Supply | 12 – 24 VDC | |
Weight | Sensor Lines: Depending on length – ca. 1,5kg per running meter | |
LED Data | 5mW, Infrared | |
Ambient Temperature | 5 to 55°C ‐ not condensing, outside of temperature range external cooling / heating required | |
Humidity | Environment should be dry |
Accessories – SLM Systems for a highly accurate measurement of discrete parts from 10 mm up to approx. 5 m
Standard Interface |
Interface Box for PC Operation SLM-BOX |
Interface box for connecting the SLM system to a PC or laptop. Allows for easy connection and supply of the SLM sensor. With RS485 output interface and plug-in power supply. |
Sensor Cable |
Shielded Cables
SLM-K3, K10 |
Sensor cable for connecting the two SLM sensor lines with each other and for connection to an interface such as SLM box or bus module, a controller or a display. |
Displays and Control Units |
Length Display
SLM-DISPLAY-BOX |
Interface box with length display for connecting the SLM system to a PC or laptop. Box with RS485 output interface and plug-in power supply. | |
Control/Control Unit
SLM-CONTROLLER |
Display and Control Unit for the SLM sensors provide the following features:
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Sorting Control
SLM-SPS |
The SPS sorting control for the SLM sensors provide the following features:
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Mobile Equipment |
Software |
Feldbus and Communication Modules |
Profibus-DP, ProfiNet-RT, Ethernet-IP
µSPEED-PB, µSPEED-PN, µSPEED-EN |
Standard bus interface modules with the following output: Length (in m) , speed (in m/s), status signal (valid/invalid) |
Protective Casing |
Conveyor Technology and Sorting Technology |
Conveyor Technology and Sorting Technology | Conveyor technology, conveyor belts, carriages, slide rails, push-out devices and sorting machines are offered together with experienced partner companies. |
Measurement Principle – SLM Systems for a highly accurate measurement of discrete parts from 10 mm up to approx. 5 m discrete part length measurement
The discrete part to be measured passes through the SLM System without stopping in longitudinal direction. As soon as the discrete part is located completely between both sensor arrays (a light transmitter array and a receiver array), a measurement is automatically triggered. To ensure that the measurement can take place with high accuracy, the discrete part already has to be separated while in supply, however, a distance between two subsequent discrete parts of only 10 mm to 50 mm is sufficient. In addition, the measurement object should pass the SLM system as straight as possible, because the SLM system measures the shadowing of the measurement object in the transmitted light. While the measurement object is twisted or inclined, the measured projection can cause a measurement which is rather too long or too short, depending on the object’s width and torsion. Furthermore, it is beneficial if the edges of the measuring object are cut at right angles and there are no ridges, cutting waste or chips left over on the front surface. The active measurement light line is only 2 mm high and is located in the middle of the sensor profile, which has a cross-section of 30 x 30 mm.
Videos – SLM Systems for a highly accurate measurement of discrete parts from 10 mm up to approx. 5 m
Product-Tutorial – SLM
Length-Section Light Scanner Part Length Measurement Systems – SLM Setup |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems – Manual Tube Measurement |
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Application Video – SLM/2
Length-Section Light Scanner Part Length Measurement Systems – Length Measurement System for long discrete parts SLM/2 – Aluminium profiles |
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Application Video – SLM/2
Length-Section Light Scanner Part Length Measurement Systems – Length Measurement System for long discrete parts SLM/2 – tubes |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems -Measurement of profile length with SLM |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems Measurement of film sheet length after cutting, before sorting/packaging |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems Length Measurement on cut tubes |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems Width Measurement of rolls |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems Part Length Measurement on short plastic profiles at high speeds |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems Part Length Measurement of 354 mm long plastic profiles after extrusion and cut |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems Small tubes in manual part guidance |
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Application Video – SLM
Length-Section Light Scanner Part Length Measurement Systems Width Measurement of Rolls with SLM |
APPLICATIONS
Measure piece lengths up to 5m
in transmitted light
Do you still measure piece lengths by hand in samples? Incoming and outgoing material edges ensure increased wear and...
Measure part length up to approximately 15 m
in transmitted light
The final measurement of very large parts is complex, staff-intensive, but still prone to error. If the maximum measu...
Length Measurement of long parts
in reflection
The measurement situation prevents the use of a transmitted light system for part length measurement? The space avail...
Measure part lengths
with free-form edges
You want to measure the length of parts with free-form edges? ... With the μVIS based 2D and 3D sensors a variety of ...
APPLICATION EXAMPLES
Length Measurement of profiles after cutting
High demands of the automotive, furniture, electronics or medical industry on the cutting accuracy of profiles make t...
Length Measurement of pipes after cutting
The final measurement of all tubes after the cutting allows a shortening of the setup time of the cutting system and ...
Test station for final part length measurement
If discrete part lengths are to be measured quickly and reliably and the measurement length has to be documented, the...
Length Measurement of sheets and plates
Metal sheets and boards are cut and then palletized. A final measurement is often done manually on the pallet stack. ...
Length Measurement of window profiles
Window profiles with lengths between 2.5 m and 7 m should be cut as precisely as possible and checked directly after ...
Measure the length of wood and chipboard
The woodworking industry is now confronted with high accuracy requirements. In order to make a profit, it is importan...
Width of paper rolls on the chain conveyor
Paper rolls are transported to the warehouse via chain conveyors after wrapping. Prior to storage, the rolls of paper...
Length of transparent plastic profiles
Even the final length measurement of translucent plastic profiles is easily and accurately possible with the non-cont...
Measure the length of metal parts, pipes, bolts, slugs
Metal parts such as pipes, bolts, rods, slugs should have the correct part length. When operating presses and forging...
Weerth - cutting and measuring precision pipes and tubes
Weerth Handling Systeme manufactures systems for the non-cutting and burr-free cutting of metal pipes and tubes. For ...
ROBUST - Foil cutting machine with part length measurement
ROBUST is specialized in slitting machines and winding technology. The product range includes roll slitting and windi...
EXTRUDEX - extruder with guillotine and measuring unit
EXTRUDEX is a manufacturer of extruders and cutting devices. EXTRUDEX extruders are mainly used in the automotive and...