Pumps RL Wobble Series

Wobble Series

 RL Wobble series

Wobble Pumps

Our range of wobble pumps are the ideal solution for those seeking a highly compact and versatile product. They are particularly easy and economical to maintain, due to the very small number of component parts. They can be used in a variety of industrial applications due to their ability to pump products which are viscous, which have solids in the fluid or which are mildly abrasive. Perfect for those seeking a highly efficient, economical product, these offer an unparalleled cost/benefit advantage. Even at high rpm, they pump without pulsating and there is virtually no centrifugal effect. They are also suitable for use within the food industry, as there are no dead zones within the pump.
The RL series range of pumps all have solidly constructed housings in cast iron and stainless steel (AISI Type 304 and AISI Type 316), manufactured using lost wax casting technology.
Threaded GAS BSP connections are available as standard, but we can also supply DIN 11851 type adaptors upon request.


  •  The RL Series: a highly compact product due to its integrated construction between pump and electric motor. It uses the patented Diamond Series joint, which guarantees exceptionally high reliability. The lantern between the pump housing and the drive has been removed to offer the benefit of a product which is compact and easy to maintain.


RL Series






  • The RJL Series: this is based on the same technology as the RL Series. However, in contrast, it uses support bearings with free bare shaft. The RJL series can be connected via the flexible coupling and is the ideal solution to supply as a bare shaft pump. The bearings ensure maximum reliability in all operating conditions.





  • The RFL Series: this is based on the same technology as the RL Series. However, in contrast, it uses support bearings with a plug-in shaft at the inlet. The RFL Series can be directly connected to the drive via a flange. The ideal solution to supply as a bare shaft pump, while still maintaining a compact size and easy installation. The bearings ensure maximum reliability in all operating conditions. rfl




R Wobble series cast iron Version

Typical applicationsTable of Models Detailed CharacteristicsStrenghtsVideo

Sewage sludge
Water treatment
Industrial sludge
Industrial detergents and chemicals
Products from the paper industry
Water treatment
Industrial detergents and chemicals
Products derived from petrochemicals
Marine Industry

Operating range


Flow rate
Up to 14,4m³/h
4 bar
From -40°C up to 80°C

Flow and Pressure

RL Series flow rates and pressures

SizeNr PolesQmax 1 barrpmP maxP inst

Patented Pin Joint:

A pin-type joint, the true heart of the cavity pump, offering the best solution of its type currently available on the market. Superior durability, reliability and maintenance costs, it successfully combines an extremely compact size with incomparable robustness. Its special construction allows the axial loads and torques to be split into different elements, which makes it unique. In addition to this, replacing worn components is inexpensive, due to the added bushings in the areas of wear, which avoids having to replace costly components (rotors, drive shaft and hollow shaft).



The pump can be installed without a stand. This helps to reduce the overall dimensions and avoids additional costs. When necessary, stands, customised skids and trolleys can be provided, allowing the pump to be moved.


The parts of the RL Series pumps which are in contact with the product can be manufactured from different materials, from the cast iron version (GG25) to stainless steel (AISI Type 304 and AISI Type 316). However, the cast iron versions still have the rotating parts made from AISI Type 304 and AISI Type 316 stainless steel.

Low pulsating flows:

Very low pulsation and tensional stress.  The centrifugal effect is reduced to a minimum, due to its low operating speed and the predominantly axial pump system.

Shaft sealing:

The pump uses internal single mechanical seals as standard.  The seal is located inside the pump housing.

This solution ensures the maximum heat exchange between the surface of the seal and the product being pumped, which gives the benefit of increased durability. Moreover, the position of the seal makes it much easier to keep clean, thus avoiding product residues that could negatively affect operating conditions.

The housings are suitable for the installation of seals manufactured in accordance with ISO EN 12756.

Modular Design:

The RL Series is based on a modular concept in every single feature: hydraulic parts, casings, seals, stands, supports and drive shafts.  Each component can be constructed in a number of variants without modifying the structure of the machine, thus maintaining standard key replacement components




Durability, reliability and low energy consumption. The RL series successfully combines a compact size with high performance in one single product.


The RL Series is designed to be versatile in all of its applications, which is why it can be arranged with options and accessories that are suitable for every application.  In addition to this, there are the benefits that the special characteristics of a cavity pump can naturally offer in pumping various kinds of fluids, fluids with low to very high viscosity, clean fluids or those containing solids of various types and sizes.


All the drives installed on the RL Series have been endurance-tested and have been subjected to strict and stringent technical testing.  We can install either electrical or hydraulic motors.

All models of electrical motor reducers and variators have certain features in terms of robustness, dimensions of the bearings and quality of the gears.


The highest possible standards, exceptional operating efficiency due to its excellent volumetric efficiency, even at high pressures, and minimal energy consumption.  All the hydraulics on the RL series have been calculated to ensure the best you can find anywhere on the market today.


Each component is manufactured to very stringent quality specifications. The finishing and the precision of each component are the starting point for every single pump built. All components are subject to specific controls according to their features and their functionality.



The RL Series is designed to ensure easy maintenance, with only a minimum number of replacement parts necessary.

In particular the bushings on the joint enable it be completely replaced without having to replace the shafts and rotors.  Maintenance costs are thus reduced.  The cost of the machine is also highly competitive, considering its entire life-cycle.

easy Manintenance higher Long life cost benefit


Cost / benefit :

Due to the compact size of its components, the RL Series successfully combines incomparable technical features with very competitive costs. Its modular design enables the right solution to be offered for each specific application, which avoids having to pay for any unnecessary features. All of which increases competitivity.


The special features of the hydraulic parts of the wobble pump allow excellent priming abilities (up to 4m). The pumps in the RL Series are designed to create the lowest possible pressure drop in the pump housing, due to the wide sections, a compact joint and its fluid dynamic design.

Ease of installation:

The RL Series pumps are easy to install, due to their compact size, their simplicity of operation and their operational flexibility, and the various fittings available.

Detailed documentation:

Each pump comes supplied with clear and detailed operating instructions.  All orders are handled by expert, qualified staff who, as part of each order, include detailed and specific documentation for the product supplied.

user-maintenance-manual for each pump


Brochure DH JH Reihe Industrie-Pumpe

Brochure DH JH Reihe Industrie-Pumpe
Diamond Baureihe Exzenterschnecken
lang: Deutsch

Brochure DH JH Série avec trémie

Brochure DH JH Série avec trémie
Diamond Series Pompes à cavité progressive
lang: Francais

Brochure DH JH

Brochure DH JH
Diamond Series Progressing Cavity Pumps
lang: English

Brochure DH JH con tramoggia

Brochure DH JH con tramoggia
Diamond Series Pompe a Cavità Progressiva
lang: Italiano


Casing material

Base materials:
G25, CF8 (AISI Type 304), CF8M (AISI Type 316),

Shaft seal materials

Base materials:
AISI type 316

Rotor material

Base materials:
AISI type 316, AISI type 304

Thick hard chrome coating

Stator material

Base materials:
NBR, food grade
EPDM, EPDM food grade,

Base plates
Base plates

standard Base
Base with anti-vibration housing (feet spacer)
Base with risers
Skid with lifting devices
Cart for industrial sector (trolley)
Cart for food grade and winery sector
(For details, see the brochure constructive options, equipment and installations)


Threaded connection GAS BSP

Sealing system

Single mechanical seal G0K9

(For construction details, see the brochure sealing systems and seals)

Optional for coupling rod
Joint protection
Coupling rod with feed screw
Anti-settling impeller
Balanced hydraulic joint
(For details, see the brochure constructive options, equipment and installations )
Protection devices

Flow switch
Pressure switch
Flanged overpressure valve
Hygienic overpressure valve
(For details, see the brochure constructive options, equipment and installations )

Control devices
Control panel
Control panel with inverter
Drive with integrated inverter
(For details, see the brochure constructive options, equipment and installations )
Equipment and optional

Integrated Bypass in the pump construction
Industrial flanged Bypass or with threaded connection
Tangential flanged connection or with threaded connection

Carter to protect the motorization
(For details, see the brochure constructive options, equipment and installations )


Brochure RL RJL RFL Reihe Wobble

Brochure RL RJL RFL Reihe Wobble
Wobble Baureihe Pumpen
lang: Deutsch

Brochure RL RJL RFL pompes à stator flottant

Brochure RL RJL RFL pompes à stator flottant
Wobble Series pompes à stator flottant
lang: Francais

Brochure RL RJL RFL

Brochure RL RJL RFL
Wobble Series free moulded stator
lang: English

Brochure RL RJL RFL Flottanti

Brochure RL RJL RFL Flottanti
Wobble Series Pompe a statore flottante
lang: Italiano