The L-732 Precision Dual Scan® Roll Alignment System is one of only 2 lasers in the world (the other is the L-742) to offer 2 automatically rotating laser planes that are highly accurate and versatile. This creates a powerful tool to not only MEASURE but also FIX roll misalignment on almost any kind of process mill, all in less than half the time of conventional methods.

Features:

Accurate Alignment Increases Material Flow and Quality

With poor alignment, most roll-type machines, whether a textile line or rubber line, will produce a product that has wrinkles and other quality problems. The material may also wander or "walk" to one side of the roll or the other. This means a lot of down time and tons of scrapped product. The L-732 not only produces a highly accurate alignment, but it also does it in record time, saving enormous costs in reduced downtime, scrapped product and quality problems. In fact, most machines processes that can handle it can run at faster speeds after laser alignment. This increased productivity will pay for the laser in a matter months, in some cases.

Less Manpower Needed for Alignments

The L-732 Roll Alignment System reduces alignment manpower. Wireless targets and automatically rotating laser planes make setting up the laser at each machine section a one-man job, freeing up technicians for other critical work during shut downs. The wireless readout displays both reference/benchmark targets simultaneously, allowing the operator to quickly buck-in to the benchmarks. Traditional optics usually require at least two men to work the instrument.

Laser Technology Reduces Optics' Variability Between Alignment Crews

PSDs, or position sensing detectors, are one of the critical components of our laser alignment systems. It is this PSD that senses the laser beam and turns it into a digital signal. This greatly reduces the man-to-man variability found in optical measurements because sophisticated electronics determine the measurement rather than the human eye. Anyone with optical experience knows that the quality of the measurement depends on having the same experienced person perform the entire alignment, which can create big problems when the job takes more than one shift to complete.

By relying on the PSD to produce highly repeatable measurements, our L-732 makes it much easier to hand off an alignment project from one crew to the next. This greatly reduces the need to have new crews backshoot the previous crews' work to "calibrate" to their readings.

No Need for Optic's Recalibration After Plumb Measurements

Unlike optics, that usually require time-consuming recalibration of the levels each time plumb is checked, the L-732 has a level built into the laser head, eliminating the need for recalibration just to check plumb. The levels usually only require calibration once a month.

Laser Planes Have 200' Range

One of the most powerful features of the L-732 is the automatically rotating laser plane with a range of 100' (30.5 M) in radius. That means the horizontal parallelism of rolls at almost any elevation can be measured simultaneously without having to move the laser vertically. This also allows the laser to be moved to more sections without having to change the location of the reference targets.

Competitive Laser Systems Use 10-Year Old Technology

Our competitors' roll alignment systems use point-and-shoot laser technology, along with remote beam-bending devices that are difficult to set up and re-locate. We abandoned that laser technology 10 years ago with the introduction of our multi-plane, continuously rotating lasers. Not only is this point-and-shoot technology difficult to set up, it also requires extra manpower and about 50% more time.

Factory-Built Benchmark Fixturing

The L-732 Precision Dual Scan® Roll Alignment System comes with fixtures to pick up floor benchmarks for aligning the laser to the machine's centerline. The L-732 also has the flexibility to easily use a reference roll to set up temporary offset centerlines. In fact, this is our preferred method of referencing the machine's centerline, as benchmarks are frequently in not much better shape than the floor they sit in. Cracks in the floor can seriously affect the position of the benchmarks and often result in poor alignments (see "Choosing a Reference" in How it Works).

Target with Built-In Readout Speeds Setup

With Hamar's new line of targets with built-in readouts (A-1531, A-1532 & A-1533), there is no need to string long extension cords to reference targets. The targets have up to a 3" (76 mm) measuring range and can be used up to 100 feet (30 meters) from the laser. Other features like electronic zeroing and target averaging help to speed setup.

HOW IT WORKS
Roll Alignment

FEATURES

• Two automatically rotating laser planes.
• Laser plane flat to 2 arc seconds (0.00012"/ft or 0.009 mm/M) in 180º sweep and 1 arc second in 90º sweep.
• Planes/beams are mutually square to 2 arc seconds (0.00012"/ft or 0.009 mm/M).
• Includes Pitch/Roll/Yaw base with medium adjustments.
• Standard Targets: A-1533 Single-Axis Target with 3" (75mm) Measuring Range and .001" (.025mm) Resolution and Swiveling Readout.
• Uses A-1519 Single-Axis, Wireless Target with 1" (25.4 mm) Measuring Range and .0005" (.013 mm) Resolution for higher-accuracy applications.
• Backlit levels accurate to 2 arc seconds (0.00012"/ft or 0.01 mm/M).
• Instant on with virtually no warm-up.
• Factory-built benchmark fixturing.
• Typical set-up time 20 minutes or less.
• Multiple mounting orientations.
• Battery or AC powered.
• Completely self contained