We get this question a lot. If you are running only our electric drive systems, typically up to 16 rows can be operated using only tractor battery although sometimes older tractors running finger pickup meters will require an alternator. For 24 row planters or larger, our standard installation kit includes a hydraulic alternator that provides the power for our electric drive systems. This hydraulic alternator uses the hydraulic return line from the vacuum. For customers utilizing Graham Command Pro for both electric drives and Graham Force, we normally begin installing hydraulic alternators starting at 12 row configurations. If you have questions, please consult a Graham Dealer.
Yes, our product is adabtable to many controllers. Our EPD are universal with AgLeader, Precision, Trimble, and John Deere monitors. However, we require modules for each of these controllers. Please consult Graham or a Graham authorized dealer to understand what module upgrades your controller requires. We require the same modules that a hydraulic drive would require from each of these controllers to operate correctly. This includes section control, rate control, and clutch control modules normally.
That is the beauty of our electric planter drive system. It makes old planters new. We can retrofit on any old planter you may be operating.
Our electric planter drives replace chains and sprockets that are controlled wirelessly from a monitor in the cab. Our electric drives eliminate all ground and hydraulic drives and eliminates most chains and driveshafts. They drive the meters installed on the planter. They operate on any installed meter including John Deere, Kinze, Precision, White, Case iH, Monosem, Kuhn, Gespardo and Matter Mac to name a few.
Yes, our EPD can be used with a 3rd party monitor with variable rate modules installed to do variable rate planting as allowed by that 3rd party monitor. Otherwise, you can purchase any one of our GrahamCommand products to control our EPD and obtain variable rate control on a ROW-BY-ROW basis.
Yes, a 3rd party monitor to control individual row population can use our product. Additionally, you can select any on of our GrahamCommand products to control individual row population.
Yes, a 3rd party monitor that has GPS capabilities can be used to control our EPD and implement prescription mapping. Otherwise, you can purchase our Graham Command Pro product that offers prescription mapping, automatic row shut-off, turn compensation, prescription row population, and seed monitoring.
You can view our current models supported by going to the SUPPORT section of our website and viewing “Planter Models” to check that your planter model is supported. If you don’t see your particular planter, please contact Graham. We will find or create a solution that allows installation of our system on your planter.
Yes, our GrahamCommand Pro monitor can be equipped with modules to control granular fertilizer or liquid fertilizer including prescription mapping, auto row shut-off, section control (Granular) and individual row (liquid) control as well as turn compensation. The Liquid Fertilizer Control application requires use of 3rd party pulse with modulation (PWM) solenoids with nozzle bodies.
We utilize 12V PWM electric motors. On our Graham Lite product, we use brushed 80 RPM electric motors offered in both shafted and hollow shaft gearbox formats. Our Graham Command Pro utilizes 80RPM 12V 80 RPM brushless electric motors with individual wireless row control boards built into the motor end caps. For cost effective Graham Pro features, we offer the Graham Command Pro AFP, which integrates with several lower cost brushed options. For applications requiring higher torque (such as drills and fertilizer applications), we offer 125 RPM motors in either a parallel or right angle gearbox format.