The Remco RollMax R441SS is a professional-grade 4-roller stainless steel pump engineered for agricultural spraying, liquid transfer, and chemical application systems requiring a 1/2" hollow shaft configuration. Delivering up to 9.4 GPM and 150 PSI, the R441SS combines corrosion resistance, rebuild-ready serviceability, and reliable spraying performance in a compact commercial-duty roller pump platform.
As part of the RollMax Series, the R441SS is designed for operators handling fertilizers, herbicides, liquid chemicals, and corrosive spray solutions where stainless steel construction offers improved long-term durability and chemical resistance.
The R441SS utilizes a 1/2" hollow shaft configuration designed for direct mounting applications commonly found on agricultural spraying equipment and PTO-driven systems. Its compact mounting design helps simplify installation while maintaining reliable pump performance across demanding field conditions.
One of the major advantages of the RollMax platform is its rebuild-ready design. The R441SS can typically be serviced and rebuilt directly in the field using basic hand tools without disconnecting plumbing or removing the pump from the drive system. This helps reduce downtime and simplify maintenance during peak spraying operations.
The 4-roller design provides smooth, consistent fluid transfer with reduced pulsation for dependable spray coverage across a wide variety of agricultural and industrial applications.
For operators looking for a corrosion-resistant hollow shaft roller pump built for demanding spraying environments, the Remco RollMax R441SS delivers professional-grade performance with simple field serviceability.
Made in the USA.
Built for Commercial Spraying Applications
- Agricultural sprayers
- PTO-driven spray systems
- Fertilizer application rigs
- Herbicide spraying systems
- Chemical transfer systems
- Industrial spraying equipment
- Field spraying applications
- Truck mount spray rigs
- Liquid application systems
- Custom spraying equipment
What is the difference between the R440SS and R441SS?
The primary difference is the shaft configuration. The R440SS uses a 5/8" solid shaft, while the R441SS utilizes a 1/2" hollow shaft for direct mounting applications.
What does “Rebuild Ready” mean?
The RollMax Rebuild Ready design allows common wear components like rollers and seals to be serviced directly in the field without disconnecting plumbing or removing the pump assembly.
What direction does the R441SS rotate?
The R441SS is configured for clockwise (CW) rotation only.
Why choose stainless steel construction?
Stainless steel construction offers improved corrosion resistance for agricultural chemicals, fertilizers, and corrosive spray solutions.
Stainless Steel Construction:
Provides improved corrosion resistance for agricultural chemicals and spray solutions.
1/2" Hollow Shaft Design:
Designed for direct mounting applications commonly used in agricultural spraying equipment.
4-Roller Pump Design:
Delivers smooth, consistent flow with reduced pulsation.
Rebuild Ready Design:
Field-serviceable design allows quick maintenance using basic hand tools.
9.4 GPM Maximum Flow:
Supports high-volume spraying and transfer applications.
150 PSI Maximum Pressure:
Handles demanding spraying applications with reliable pressure output.
Clockwise Rotation (CW):
Compatible with common spraying system drive configurations.
3/4" FNPT Ports:
Allows straightforward plumbing integration into spray systems.
Repair Kit Support Available:
Compatible with the R440RK Universal Repair Kit.
Commercial Spraying Performance:
Designed for agricultural and industrial liquid application systems.
| Specification | Details |
| Brand | Remco Industries |
| Series | RollMax |
| Model / Part Number | R441SS |
| Pump Type | 4-Roller Pump |
| Number of Rollers | 4 |
| Housing Material | Stainless Steel |
| Maximum Flow Rate | 9.4 GPM |
| Maximum Pressure | 150 PSI |
| Maximum Speed | 2600 RPM |
| Rotation | Clockwise (CW) |
| Shaft Size | 1/2" Hollow |
| Port Size | 3/4" FNPT |
| Shaft Material | Hardened Stainless Steel |
| Seal Material | Viton |
| Bearings | Sealed Ball / Needle Bearings |
| Temperature Range | 34°F to 140°F |
Performance Chart (GPM)
| PSI | 1800 RPM | 2200 RPM | 2600 RPM |
| 0 PSI | 6.5 GPM | 8.0 GPM | 9.4 GPM |
| 20 PSI | 5.8 GPM | 7.0 GPM | 8.5 GPM |
| 40 PSI | 5.1 GPM | 6.2 GPM | 8.0 GPM |
| 100 PSI | 4.5 GPM | 5.6 GPM | 7.5 GPM |
| 150 PSI | 4.0 GPM | 5.5 GPM | 7.3 GPM |
Typical Applications
- Agricultural spraying
- Herbicide application
- Fertilizer spraying
- ATV/UTV sprayers
- Spot spraying
- Lawn care equipment
- Liquid transfer
Important Operating Notes
- Never run the pump dry
- Do not pump abrasive liquids or sandy water
- Use a bypass or relief valve to prevent dead-heading
- Operate only within recommended temperature ranges
- Verify shaft rotation before installation
Compatible Accessories & Repair Parts
Repair Kit
- R440RK — Universal Repair Kit
Couplers
- RMC585410 — Multi-Speed PTO Coupler
- RC5858 — Gas Engine Adapter Coupler
PTO Stabilization
- RMTAC — Torque Bar & Chain Kit
Warranty Information
The Remco RollMax R441SS Roller Pump is backed by the manufacturer’s warranty coverage.
For product support, compatibility assistance, or setup questions, contact Spraywell at 561-964-3228.
