The Remco RollMax R660SS is a high-volume professional-grade 6-roller stainless steel pump engineered for demanding agricultural spraying, liquid transfer, and chemical application systems. Delivering up to 19.6 GPM and 150 PSI, the R660SS combines high-output PTO spraying performance with the corrosion resistance needed for aggressive agricultural chemicals and fertilizer applications.
Built with a stainless steel body, the R660SS is designed for operators handling herbicides, fertilizers, liquid chemicals, and corrosive agricultural solutions where long-term chemical resistance is critical. Its 6-roller design delivers significantly higher flow capacity than smaller 4-roller pump configurations, making it ideal for larger acreage coverage and high-demand spray systems.
One of the major advantages of the RollMax platform is its Rebuild Ready design. The R660SS can typically be serviced directly in the field using only basic hand tools without disconnecting plumbing or removing the pump from the drive shaft. This helps reduce downtime and simplify maintenance during peak spraying season.
The R660SS utilizes a counter-clockwise (CCW) rotation configuration with a 5/8" shaft designed for PTO-driven spraying systems. Standard 3/4" FNPT ports allow easy integration into agricultural and industrial spray equipment.
For operators running high-volume PTO spraying systems involving chemical applications and corrosive spray solutions, the Remco RollMax R660SS delivers commercial-duty performance with corrosion-resistant construction and field-serviceable simplicity.
Made in the USA.
Built for Commercial Spraying Applications
- Agricultural sprayers
- Fertilizer application systems
- Herbicide spraying rigs
- PTO-driven spray systems
- Chemical transfer systems
- Field spraying equipment
- High-volume liquid application rigs
- Industrial spraying equipment
- Corrosive chemical spray systems
- PTO-mounted spray trailers
Why choose the R660SS over the cast iron R660C?
The stainless steel construction offers improved corrosion resistance for agricultural chemicals, fertilizers, herbicides, and corrosive spray solutions.
What makes the R660SS different from the R440 series?
The R660SS utilizes a 6-roller design capable of producing up to 19.6 GPM, providing substantially higher flow output than smaller 4-roller pump configurations.
What does “Rebuild Ready” mean?
The RollMax Rebuild Ready design allows common wear components to be serviced directly in the field using basic hand tools without disconnecting plumbing or removing the pump assembly.
What direction does the R660SS rotate?
The R660SS is configured for counter-clockwise (CCW) rotation only.
Stainless Steel Construction:
Provides improved corrosion resistance for fertilizers, herbicides, and agricultural chemicals.
6-Roller High-Volume Design:
Provides increased flow output and smoother fluid transfer compared to smaller roller pump configurations.
19.6 GPM Maximum Flow:
Designed for high-demand spraying and liquid transfer applications.
Rebuild Ready Design:
Field-serviceable design allows maintenance without disconnecting plumbing or removing the pump.
150 PSI Maximum Pressure:
Handles demanding spray pressure requirements with reliable performance.
Counter-Clockwise Rotation (CCW):
Configured specifically for PTO-driven spray systems.
5/8" Shaft Configuration:
Compatible with RollMax PTO couplers and mounting accessories.
3/4" FNPT Ports:
Allows straightforward plumbing integration into spraying systems.
R660RK Repair Kit Compatibility:
Supports fast field rebuilding and maintenance.
Compatible with PTO Stabilization Accessories:
Works with the RMTAC Torque Arm & Chain Kit for PTO-mounted installations.
| Specification | Details |
| Brand | Remco Industries |
| Series | RollMax R660 Series |
| Model / Part Number | R660SS |
| Pump Type | 6-Roller Pump |
| Body Material | Stainless Steel |
| Rotation | Counter-Clockwise (CCW) |
| Shaft Size | 5/8" |
| Port Size | 3/4" FNPT |
| Maximum Flow Rate | 19.6 GPM |
| Maximum Pressure | 150 PSI |
| Maximum Speed | 1000 RPM |
Performance Chart
| Pressure (PSI) | 540 RPM | 850 RPM | 1000 RPM |
| 0 PSI | 10.5 GPM | 16.7 GPM | 19.6 GPM |
| 20 PSI | 9.7 GPM | 16.2 GPM | 19.0 GPM |
| 40 PSI | 8.6 GPM | 15.7 GPM | 18.5 GPM |
| 100 PSI | 6.9 GPM | 14.0 GPM | 16.5 GPM |
| 150 PSI | 5.7 GPM | 12.8 GPM | 15.0 GPM |
Compatible Accessories & Repair Parts
Repair Kit
- R660RK — Universal Repair Kit
PTO Coupler
- RMC585410 — Multi-Speed PTO Coupler
PTO Stabilization
- RMTAC — Torque Bar & Chain Kit
Rebuild Ready — Typical Service Procedure
- Remove endplate cap bolts
- Slide endplate off carefully
- Inspect and replace worn rollers
- Lubricate shaft seal before reassembly
- Reinstall endplate and hardware
Important Operating Notes
- Verify PTO rotation direction before installation
- Never run the pump dry
- Avoid abrasive or contaminated liquids
- Use a bypass or relief valve when appropriate
- Use PTO stabilization hardware during operation
Rotation Direction Warning
The R660SS is configured for counter-clockwise (CCW) rotation only.
Operating the pump in the incorrect rotation direction may result in poor performance and accelerated wear.
Typical Applications
- Agricultural spraying
- Fertilizer application
- Herbicide spraying
- Chemical transfer
- High-volume PTO spraying
- Corrosive liquid application systems
Warranty Information
The Remco RollMax R660SS Roller Pump is backed by the manufacturer’s warranty coverage.
For product support, compatibility assistance, or setup questions, contact Spraywell at 561-964-3228.
