The Heavy Duty Frame
Is constructed of structural 4" x 4" steel tubing welded into a unitized one-piece frame. All high stress areas are reinforced to resist bending and twisting.
The Vertical Clearance
Between the chisel point and the bottom of the frame is 26" or 32" depending on the tine size.
The Rigid Tine Pivot Assemblies
Are used where rocks are not a problem. Available on 5' and 7' 2-Bar units only.
The Spring Tine Pivot Assemblies
Feature dual springs made of ½" oil tempered steel for strength and durability. The spring mounts are cast with internal and external helicals that match the ends of the springs. As the spring is stressed, the load is distributed evenly out the entire length of the spring. This distribution aids in avoiding stress concentrations.
Tine Spacing
Tines are mounted 24" apart on the 2 Bar units and 36" apart on the 3 Bar units. Then they are staggered from front to rear with a spacing from the center of the unit yielding a 12" pattern.
Model 156.pdf