Zero-Max VRT Variable Ratio Transmission

The Zero-Max VRT Variable Ratio Transmissions are designed to ensure accurate and consistent application rates for agricultural seeding and fertilizing equipment.

• Provides a critical link between the control system and the mechanical seed and fertilizer distribution mechanism
• Maintains seed and fertilizer placement accuracy even when the ground speed of the equipment changes
• Infinitely adjustable to obtain the exact desired ratio
• Ratio can be adjusted when idle or when running
• Easily, quickly and precisely make speed adjustments
• Variable ratio or fixed ratio operation
• Speed and torque capabilities are expandable by use of chain and sprocket ratios at the VRT shafts
• Applications include air seeders, plot seeders, grass seeding, air carts, research plots, cover crop planting, turf care and more
• Encased in a secure heavy-duty housing resisting dirt and debris
• Pre-lubricated and withstands harsh environments and climates
• Reliable operation with minimal or no maintenance
• Available in two sizes, each offering 0-300 rpm input speed and a 0 to 0.25:1 ratio range of output to input speed
• Rated for 150 in.-lb. (16.9 Nm) torque value with the VRT-300 rated for 300 in.-lbs. (33.9 Nm)
• Both sizes available with input and output shafts on same side or opposite side of housing
• Output shaft rotation in clockwise or counter-clockwise direction
• Various control options