This heavy-duty equalizer bar assembly is a core load-bearing undercarriage component specially designed for Shantui SD32 / SD320 large horsepower bulldozers, independently developed and mass-produced by Shandong Hengji Group Co., Ltd., a national specialized, sophisticated, distinctive and innovative enterprise with exclusive utility model patent for bulldozer balance beam structure.
We adopt high-strength integral cast steel as the main blank material, matched with thickened wear-resistant hinged brackets, heavy-duty connecting lugs and imported wear-resistant copper bushings. The whole manufacturing flow includes CNC blanking, full penetration robot welding, stress relief annealing, precision boring, surface shot blasting and anti-rust yellow polyurethane paint spraying. All welding seams undergo ultrasonic non-destructive testing to eliminate hidden cracks, while overall structural annealing effectively releases internal welding stress, greatly improving bending resistance and anti-deformation performance under mining and heavy earthmoving loads.
As the key suspension connection part between the bulldozer main frame and two track frames, the equalizer bar balances the pressure of left and right walking systems, absorbs violent vibration during uneven ground operation, protects track rollers, gears and drive shafts from impact damage, and extends the whole undercarriage service life by over 40% compared with ordinary aftermarket balance beams. The thickened hinge joint structure with wear-resistant bushings reduces metal friction, avoids jamming and abnormal shaking in long-term harsh construction environments.
All production procedures are finished in our self-owned casting, welding and heat treatment workshops without outsourcing, which guarantees consistent structural strength and stable mass delivery cycles for OEM bulk supporting orders. This equalizer bar assembly is perfectly compatible with SD32, SD320 series bulldozers. Every finished assembly passes full dimensional and load inspection, issued with factory test reports, and all export products obtain CE certification with a 12-month quality warranty. Besides standard SD320 models, our engineering team accepts customized balance beam production according to customers’ drawings, samples or special load-bearing reinforcement demands for other bulldozer models.
We maintain long-term stable supply cooperation with domestic top construction machinery manufacturers including Shantui, Sany and Liugong. Our bulldozer undercarriage assemblies are exported in large batches to Saudi Arabia, South Africa, Kenya, Algeria, Russia and Southeast Asian markets. Global buyers highly recognize our equalizer bar products for outstanding structural durability, competitive factory FOB prices and flexible minimum order quantity. Our professional technical team provides timely installation guidance and after-sales support for all international machinery partners.
