CATERPILLAR 12M MOTOR GRADERS

Technical Description

The Caterpillar 12M Motor Grader is a mid-size construction machine featuring a Cat C6.6 ACERT VHP six-cylinder engine delivering 158 horsepower base power with a maximum of 173 hp and 690 lb-ft of torque. The machine measures 27.9 feet overall length and 8.2 feet in width, with a 19.4-foot wheelbase and 10.8-foot cab height. Its 12-foot moldboard blade offers maximum cutting depth of 28.3 inches and lift height of 16.8 inches, with blade positioning ranging from 40 degrees forward to 5 degrees backward. The grader features an electronically controlled power-shift countershaft transmission with eight forward and six reverse gears, achieving top speeds of 27.7 mph forward and 23.5 mph reverse. The electro-hydraulic closed-center, load-sensing hydraulic system operates at 3,500 psi maximum pressure with 51 gpm pump output, enabling blade pull forces up to 26,465 pounds. Standard operating weight is 32,016 pounds, with maximum gross vehicle weight reaching 44,690 pounds. The machine incorporates multiple oil-disc service brakes with dual-circuit control, provides 47.5-degree steering range, and features a 24.5-foot turning radius. Additional capabilities include optional ripper and scarifier attachments, with fuel capacity of 90 gallons and hydraulic system capacity of 16 gallons, making it versatile for road construction, maintenance, and land preparation applications.