Professional-grade 6-roller stainless steel pump for high-volume agricultural chemical and field spraying applications. 19.6 GPM, 150 PSI, counter-clockwise rotation, 5/8" shaft.
The Remco R660SS combines the high-volume output of the 6-roller RollMax platform with the superior corrosion resistance of a stainless steel body — making it the go-to choice for operators running chemical sprays, herbicides, fertilizers, and other corrosive agricultural liquids at scale. Delivering up to 19.6 GPM at 150 PSI, it handles the demands of large-acreage PTO sprayer applications while standing up to the chemical environments that would degrade a cast iron pump over time.
Like all RollMax pumps, the R660SS is built around Remco's Rebuild Ready design — fully serviceable in the field in minutes using only a wrench, with no need to disconnect from the drive shaft or disturb plumbing. For operators who need a complete ready-to-mount solution, the cast iron R660C-TAK kit is also available with torque arm, chain, and coupler included.
Superior corrosion resistance for chemical sprays, herbicides, fertilizers, and other corrosive agricultural liquids
High-volume 6-roller output for large-acreage coverage and demanding agricultural PTO sprayer setups
Full field serviceability in minutes with only a wrench — shaft and plumbing stay connected throughout
Compatible with the RMC585410 multi-speed coupler for 540/1000 RPM PTO applications
The R660SS stays mounted to the drive shaft and plumbing throughout the entire rebuild process. All you need is a wrench: Step 1: Loosen and remove the 4 cap bolts Step 2: Slide the pump's endplate off the shaft carefully Step 3: Inspect and replace worn rollers using the R660RK repair kit; lubricate shaft seal before reinstalling Step 4: Reinstall the endplate and cap bolts Step 5: RollMax is ready to spray Keep the R660RK Universal Repair Kit on hand for fast, no-downtime field rebuilds.
Repair Kit: • R660RK — Universal Repair Kit: 6 Max Rollers (3/4"), Needle Bearing, 2 Lip Seals, O-Ring, Pill Key Coupler: • RMC585410 — 5/8" Shaft, 540/1000 RPM Multi-Speed, Cast Aluminum/Zinc, Set Screws Rotation Prevention: • RMTAC — Torque Bar and Chain (rotation prevention for PTO-mounted pumps)
📥 Download the RollMax Operation Manual (PDF) The manual covers installation, operation, maintenance, and rebuild procedures for the full RollMax pump series including the R660SS. Technical Support: Remco Industries Website: remcoindustries.com
The R660SS is configured for Counter-Clockwise (CCW) rotation only. Confirm your PTO drive shaft rotation direction before installation. Running the pump in the wrong direction will result in poor performance and accelerated wear. If your application requires clockwise rotation, see the R440C or R440SS models in the RollMax series. Use of the RMTAC Torque Bar and Chain is recommended to prevent pump rotation on PTO-mounted installations.