Portable Lumber Strength & Density Grader

Portable Lumber Grader

Product Description:

The Portable Lumber Grader is an efficient tool designed to grade structural lumber according to the EN-338 norm, suitable for deciduous and coniferous species, including poplar. It measures the modulus of elasticity (MOE) and the average specific gravity of the lumber, providing quick results (1 second per lumber piece) to determine the appropriate strength class.

Product Features:

• Grades lumber based on the EN-338 norm for strength classes.
• Handles two species classes: deciduous and coniferous, including poplar.
• Quickly determines the modulus of elasticity (MOE) and specific gravity.
• Efficient grading process with a time requirement of approximately 1 second per piece of lumber.

Technical Specifications:

• Weighing Scale:
• Dimensions: 250 x 75 x 90 mm
• Capacity: 30-500 kg
• Resolution: 10 g
• Output: RS232 signal
• Power Supply: 12 V adapter or 4 AA size batteries
• Microphone:
• Type: Unidirectional
• Sensitivity: -56 dB (0 dB = 1 V/mbar at 1000 Hz)
• Frequency Range: 100 - 15000 Hz
• Operational Temperature: 5 - 40 °C
• Hammer: Weight: 0.1 – 3% of the lumber weight
• Grading:
• Principle: Mass, CKDR, and MOE determination
• Time Requirement: Approximately 1 second
• Grading Table: Identical to the EN-338 norm

Package Contents:

• Weighing scale
• Scale display unit
• Tape measure
• Steel hammer (100 g)
• Battery and charger
• Microphone
• USB to serial converter cable
• Portable Lumber Grader Software
• User's manual