Saw Mills

The critical alignments for a sawmill is to ensure that the log carriage is traveling straight, is perpendicular to the blade...

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SAW MILL ALIGNMENT

The L-732 Precision Dual Scan® Laser is the ideal instrument to quickly and accurately calibrate the geometry of most sawmills. The L-732 is one of only 2 lasers in the world (the other is the L-742) to offer 2 automatically rotating laser planes that are accurate enough for today's ever-tightening tolerances. This creates a powerful tool that not only FINDS, but also FIXES geometry problems, all in a fraction of the time needed with conventional methods.

Quickly Set Carriage Straightness and Blade Squareness

The L-732 has 2 vertical continuously sweeping laser planes that are square to each other. The first laser plane can be used to quickly and easily measure and set the straightness of the log carrier. The second plane can be used to check the squareness of cross-cutting saw bladeS. And both of these alignment tasks can usually be accomplished from 1 setup!

200' Range for Flatness and Straightness

The L-732 has a range of 100 feet (30.5 meters) in radius for measuring straightness. This means most saw mills can be aligned with one setup. In fact, if the laser is placed in the center of the mill it has a range of 200 feet (61 M).



If measuring flatness is desired, the L-732 can be repositioned so that it has one horizontal and 1 vertical laser plane. This allows the laser to check the flatness and straightness at the same time with one setup. And since the laser automatically rotates, multiple targets can be used from the same laser source, which means more than part of the mill can be aligned at the same time.

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, a measuring resolution of 0.001" (.02 mm) 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.

Continuously Sweeping Lasers and Live Data Reduces Downtime

Continuously sweeping lasers and live data output create a powerful combination to align the mill up to 70% faster than traditional methods. Downed machines will be up and running, producing quality product in record time. HLI's continuously sweeping lasers are far superior to other point-and-shoot laser systems that require time-consuming manual laser rotation and target setup for each point measured. They also allow the use of multiple targets, which is especially helpful for large machines.

By providing live alignment data, misalignment errors can be quickly and easily fixed without having to change the setup. This is especially useful if you are used to using optics where many setups are required to perform alignments.

Squareness Built Into Laser Head

One of the L-732's greatest features is its built-in squareness (each plane is square to each other to within 2 arc seconds - 0.00012"/ft or 0.01 mm/M)). If you have ever tried to set up a cylindrical square or interferometer to check squareness, you will be amazed at how quickly and easily the squareness of not just one axis, but 2 axes can be measured, usually with one setup! And, unlike a cylindrical square, the L-732 can check the entire length of a machine's axis, up to 100 feet (30.5 meters), not just 12" (305 mm) or 24" (610 mm) of it.

Simultaneously Measure 2 Axes with One Setup

Another great time saver is the L-732's ability to measure the 2 main axes of the mill at the same time. Not only can you measure the flatness and straightness of each axis, but you can also measure the squareness of the 2 axes.

L-732 Significantly Reduces Stack Up Errors

One of the biggest problems with aligning saw mills with conventional methods is that many different alignment tools must be used, requiring a lot of time and increasing stack-up errors. Another problem is that an alignment is only as good as the tools used to perform it. The machinist level is a good example: it has a resolution of .0005" per foot, not very accurate for today's ever-tightening tolerances.

The L-732's laser planes, by contrast, have a flatness of 2 arc seconds (0.00012"/ft or 0.01mm/M) in a 180º sweep and 1 arc second (0.00006"/ft or 0.005 mm/M) in 90º sweep. The laser planes are square to each other to within 2 arc seconds (0.00012"/ft or 0.01 mm/M). They further have the advantage of creating a single reference from which to measure machine geometry, significantly reducing stack-up errors.

Software Quickly Collects and Analyzes Data

Hamar's new line of alignment software, combined with newly designed computer interfaces, makes collecting and analyzing alignment data faster and easier. All of the software is Windows based and provides large, color graphics. Alignment reports clearly and concisely show the machine's condition. In today's world of ISO 9000 documentation hell, our software will help you submit alignment reports in record time.

HOW IT WORKS
Saw Mills

FEATURES

  • Two automatically rotating laser planes with 100-foot (30.5 M) operating range in radius.
  • Laser plane flat to 2 arc seconds (0.00012"/ft or 0.01 mm/M) in 180º sweep and 1 arc second in 90º sweep.
  • Planes/beams are mutually square to 2 arcsec (0.00012"/ft or 0.01 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.
  • Typical set-up time 20 minutes or less.
  • Diode lasers 2 times more stable than HeNe based laser systems.
  • Battery or AC powered.
  • Completely self contained.



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