ZUM WALD – GEZU 450

Tensile testing machine for wooden boards with a cross-section of max. 50 x 260 mm, max. tensile strength 450 kN

Description

Tensile testing machine for checking the quality of boards and solid wood lamellas. Tensile testing machines are used to determine mechanical properties, in particular the tensile strength and robustness of wood lamellas and finger joints. If special safety precautions (optional) are observed, mechanical joints (tensile splices) can also be tested.

Design

The machine consists of the following modules:

Clamping and traction unit, comprising:

  • Main support for mechanism
  • Base plates for supporting clamping plates
  • Clamping plates with special toothing, unhardened, replaceable
  • Two guide shafts, hardened and polished
  • Two hydraulic hollow cylinders for generating tensile force
  • Two hydraulic clamping cylinders for generating clamping force
  • Hydraulic fittings for connecting to the hydraulic unit


Clamping unit, comprising:

  • Main support for mechanism
  • Base plates for supporting clamping plates
  • Clamping plates with special toothing, unhardened, replaceable
  • Two guide shafts, hardened and polished


2 longitudinal beams for a maximum free clamping length of 1000mm, adjustable from 200mm to 1000mm in 100mm increments.

Technical data

Maximum tensile force 450 kN
Maximum clamping force with maximum clamping area (260 x 280 mm) 4 N/mm2
Clamping plates, toothed 260 x 280 mm
Shortest free clamping length for test specimen 200 mm
Longest free clamping length for test specimen 1,000 mm
Maximum jaw opening 55 mm
Maximum breakage path 10 mm
Test capacity up to approx. 10 pcs. per hour
Dimensions of test specimens
Width: 150 – 260 mm
Thickness: 20 – 50 mm
Length: 200 – 1,000 mm

Safety devices
conforming to SUVA and CE

  • Machine operation
  • The machine is operated from a control panel.
  • Clamping pressure freely selectable.
  • Tensile force freely selectable.

The test can be carried out to a pre-set tensile force or until rupture. The values are shown on the display. A PC can be connected and data recorded (optional).

 
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