440 Static Bending Tester


Provides laboratory measurement of flatwise bending modulus of elasticity (E).

  • Highly accurate
  • Accommodates twist
  • Built-in, stress-free yoke
  • Durable with trouble-free operation

Pneumatically-operated, static weight bending test machine measures deflection at mid-span, by a yoke-mounted dial indicator gauge. Combination pivot and roller load points accommodate warp in the specimen. Adjustable alignment pins, writing table, and storage drawer are included. 

  • Employs a test load and dial indicator to find flatwise bending modulus of elasticity (E) in both North American and metric sizes.
  • Specimen is positioned by hand against adjustable stops and a pre-load is applied. A dial indicator contacts the underside of the specimen at mid-span.
  • Test load of steel weights are positioned with pushbutton-controlled air cylinders and is applied equally at the 1/3 and 2/3 test span locations.
  • Dial indicator is supported on a separate, stressfree yoke structure to eliminate any frame deflection errors that might occur when the test load is applied.
  • Dial indicator withdraws into its protected position simultaneously with the removal of the pre-load from the lumber.


Bending Test Span

48 in (1219 mm)

Test Load Configuration

4-point 1/3 span

Material Size Capacity

North American lumber sizes:


1.5 in


2.5, 3.5, 5.5, 7.25, 9.25, and 11.25 in

Metric sizes (optional):


70, 90, 120, 140, and 180 mm


35 & 45 mm

Test Weights



50.0 lb (22.7 kg)


Two weights included (use up to 3 additional weights)

Power Requirements

Clean shop air pressure

80 psi (550 kPa)


1 cfm (0.03 m3 /min)

Air Volume Per Cycle

50 in3 (1 l)



53 in (1350 mm)


22 in (560 mm)


78 in (1980 mm)

Shipping Weight

. 670 lb (270 kg) (with two 50-lb load weights)

Part Number Description
440-ASM-1001 Test Weight, 50 lb (upper)
PNE-CYL-1010 Cylinder, 440 Bottom Load
PNE-CYL-1011 Cylinder, 440 Dial Indicator
PNE-CYL-1012 Cylinder, 440 Top Load
PNE-VAL-1016 Valve, Load Cylinder
PNE-VAL-1018 Valve, Operator