ADUSTABLE SPREADER BEAM For OVERHEAD LIFTING

Beau Richards MC 260

INITIAL DESIGN•Based on Caldwell Adjustable Beam

INITIAL DESIGN•Meet or exceed ASTM B30.20•WLL 10 tons•6’-10’ adjustability•Grade 10 components•Minimum Included angle of 45°•Max headroom 10’•Max life of 20,000 cycles (class 0)

6’-10’ Adjustable

6’

Load

(Load/2) (Load/2)

(Load/2)

(Load/2)

(Load/2)

(Load/2)

Load

Load

Horizontal forces (Fx) = Load/sin Ø

Compression

Tension

Resisting bending

PEWAG INDUSTRIES•Grade 100 alloy steel•Minimum UTS 145,000psi•Yield Strength 116,000psi

Humans!!

Human!!