Products Index
General Advantages
On trailer mounted units the hitch pin must be centered between the pump and tractor PTO shafts to minimize vibration transferred to the pump when turning.
PTO belt driven centrifugal pumps were first introduced by Ace in 1964 and enabled the
applicator to mount centrifugal pumps directly on 540 RPM and 1000 RPM tractor PTO shafts.
The simple, yet durable design of the PTOC pump has withstood the test of time while many
attempts at imitation have come and gone.
The key to success of the Ace belt driven pump has been the Spring Loaded Idler. The idler maintains proper belt tension which minimizes the load on the pump bearings. More importantly, the idler helps absorb the shock of PTO engagement that can destroy cog belts or gears.
Model PTOC belt driven pumps are easy to operate and maintain. Belts can be replaced in the field with minimum downtime and at little cost. Maintenance features also include sealed ball bearings and a readily replaceable mechanical seal. The belt guard provides complete coverage of the pulleys, shaft and belt. All PTO driven Roundup logo pumps are equipped with a stainless steel shaft and wear ring for excellent corrosion resistance.
RoundupĀ® is a registered trademark of Monsanto Company.
PTOC-600 PTOC-1000

1-1/4 | 1 |
SUCTION | DISCHARGE |
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The original belt drive standard since 1964
Time tested and field proven design
Widespread parts and service availability
Most Economical belt drive
MAXIMUM PRESSURE: 80 PSI (5.5 BAR) MAXIMUM FLOW: 65 GPM (246 LPM)
PTOC-600
PTOC-1000
PTO Shaft Options
-6SP | -6SPQC | -21SP | -20SP | -B |
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Standard 1-3/8” (34.9mm) 6 spline shaft for 540 RPM PTO Models |
Optional instant-attach quick coupler feature for 540 RPM PTO models |
Standard 21 spline 1-3/8” (34.9mm) split bore shaft with locking collar for 1000 RPM PTO models |
20 spline 1-3/4” (44.5mm) split bore shaft with locking collar for larger 1000 RPM PTO Models |
1” (25.4mm) stub shaft for installation on trailer sprayers driven by PTO tumblerod |
PTOC-150-600 PTOC-150-1000

1-1/2 | 1-1/4 |
SUCTION | DISCHARGE |
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The High Performance Pump. 100 PSI (6.9 BAR) at 40 GPM (151 LPM) due to increased pulley ratio and larger 1-1/2” x 1-1/4” construction
Provides higher pressure and greater volume for applications with large tanks and long spray booms
Allows fuel savings by operating at lower engine speeds while maintaining adequate spraying pressures
MAXIMUM PRESSURE: 110 PSI (7.6 BAR) MAXIMUM FLOW: 100 GPM (378 LPM)
PTOC-150-600
PTOC-150-1000
Test