M Series Pumps
Versatile mid-range pumps delivering the highest pressure ratings in the Rotho lineup. Ideal for demanding industrial processes requiring both flow capacity and pressure.

M Series Models
Four models with the highest pressure ratings for demanding applications




Technical Specifications
| Model | Max Flow (GPH) | Max Flow (LPH) | Displacement | Max Pressure | Tube ID | Connection |
|---|---|---|---|---|---|---|
| M34 | 1,297 | 4,909 | 0.23 Gal/Rev | 290 PSI (20 BAR) | 34mm | 1 1/2" |
| M40 | 2,589 | 9,799 | 0.372 Gal/Rev | 290 PSI (20 BAR) | 40mm | 1 1/2" |
| M55 | 4,871 | 18,438 | 0.845 Gal/Rev | 218 PSI (15 BAR) | 55mm | 2" |
| M68 | 8,750 | 33,121 | 1.796 Gal/Rev | 218 PSI (15 BAR) | 68mm | 2 1/2" |
Ideal Applications
M Series pumps excel in high-pressure industrial applications

Mining & Minerals
Handling abrasive slurries and tailings with reinforced hose elements designed for aggressive materials.

Ceramic Manufacturing
Transferring slip and glazes without air entrainment or damage to the product.

Chemical Processing
Metering aggressive chemicals at high pressures with single wear-item design.

Wastewater Treatment
Pumping sludge and biosolids with self-priming capability and dry-run tolerance.

Paint & Coatings
Gentle handling of shear-sensitive paints and pigments without product degradation.

Food Processing
Transfer of viscous foods, fruit purees, and ingredients with food-grade hose options.
We automated tank-mixer filling with the Rotho pump — no damage to the product and above all, the whole nuts remain intact through the transfer process.— FABBRI SPA, Food & Confectionery Manufacturing
Ready to Get Started?
Contact our team to discuss your application and get a customized pump recommendation.
Request a Quote Call (619) 298-3800