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Dual Flow Pumps / Dual Circuit Pumps by Sunfab and Hydro Leduc

Maximum performance in the smallest space: Our dual flow pumps (also known as twin flow pumps) supply two independent hydraulic circuits from a single power source. They are the compact, lightweight alternative to the classic tandem pump. We stock top series from Sunfab and Hydro Leduc directly.

One housing, two flows – The modern double pump

Where heavy tandem pumps (two flanged pumps) were once necessary, professionals today rely on integrated axial piston double pumps. This saves weight, installation space, and reduces the risk of leakage.


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Our Brands, Designs & Sizes

  • Sunfab SLPD dual flow pumps: Designed using the swashplate principle. Available with equal (20/20 to 53/53 cc/rev) and unequal displacements (40/20 to 64/32).
  • Sunfab SCPD dual flow pumps: These pumps operate on the bent axis principle and are available in sizes 56/26 and 76/76 cc/rev.
  • Hydro Leduc PAD dual flow pumps: A swashplate pump, available in symmetrical sizes (2x32 to 2x67 cc/rev) and asymmetrical versions such as 55/33 and 67/40.
  • Hydro Leduc XRT 68/68 dual flow pumps: In bent axis design, specifically optimized for forestry cranes. Optional bypass valve available for use on engine PTOs.

Typical applications for 2-circuit systems

These pumps are indispensable when different consumers need to be supplied simultaneously and independently:

  • Loader cranes & Forestry cranes: Lifting and slewing simultaneously without mutual interference.
  • Municipal vehicles: Refuse collectors, winter service, or skip loaders.
  • High flow demand: By combining both flows, a large volume flow can be generated for rapid traverse functions if needed.

Advantages over flanged tandem pumps

  • More compact: Significantly shorter than two pumps mounted in series.
  • Lighter: Lower dead weight increases the truck's payload.
  • Direct mounting: Usually fits directly onto the standard PTO.

Request suitable dual flow pump

Are you looking for a specific Sunfab SLPD or a Leduc PAD dual flow pump? We can help you configure the right size. Send us your inquiry now.

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4 Products
Hydro Leduc PAD Dual Flow Pump for Mobile Hydraulics

The PAD dual flow pumps have been specially designed for demanding truck-mounted hydraulic applications. With its rugged design, high operating pressures, and the ability to handle even degraded or low-quality hydraulic fluids, the PAD pump is the ideal solution for tough working environments. Key Benefits: Ideal for demanding commercial vehicle applications Dual flow version with symmetrical displacement: 2×25 to 2×75 cm³/rev DIN ISO 14 (DIN 5462) standard flange connection Durable construction, resistant to contaminated fluids Standard bi-directional rotation Continuous pressure up to 400 bar, peak pressure up to 500 bar Typical Applications: Truck-mounted equipment: loader cranes, forestry cranes, hooklifts, stabilizers Winter service vehicles: plows, spreaders, turbines Municipal and emergency vehicles: firefighting equipment, specialty vehicles Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!

Dual-circuit pump SCPD from the manufacturer Sunfab Logo of the manufacturer Sunfab in black and white
Dual Flow Pump SCPD for Mobile Hydraulic Systems

The Sunfab SCPD DIN series consists of dual flow pumps designed to deliver two separate oil flows in a compact and robust housing. Optimized for direct mounting on PTOs with engage/disengage function, they are ideal for demanding mobile hydraulic applications. Available Variants: SCPD 56/26 DIN: 56 + 26 cm³/rev, up to 400 bar SCPD 76/76 DIN: 76 + 76 cm³/rev, up to 350 bar Benefits: Optimized for both left and right rotation High self-priming speed and quiet operation Double shaft seals and O-rings on all sealing surfaces for leak prevention Outstanding displacement-to-size ratio for tight installations Long service life due to high-quality materials (bearings, seals, etc.) Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!

XRT-68/68 Dual Flow Pump by Hydro Leduc

The XRT6868 dual flow pump with fixed displacement is designed for applications requiring two independent hydraulic circuits. It combines high power density with a compact design and is ideally suited for installation on switchable PTOs or rear engine drives. Features and Benefits: Double flow of 68 + 68 cc/rev Compact 2 x 5-piston design for high reliability Constant output even under heavy load High overall efficiency and low noise level DIN ISO14 (DIN 5462) and ISO 7653 flange Durable materials for long service life Optional rear PTO with BPT bypass valve Applications: Truck equipment such as cranes, forestry cranes, boom systems, and multi-bucket systems Stabilizer cylinders in mobile machinery Winter service equipment such as snow plows, salt spreaders, and turbines Firefighting vehicles with high hydraulic performance Technical data: Displacement 68 + 68 cc/rev Max. operating pressure 380 bar Max. peak pressure 420 bar Max. flow rate 1400 l/min Theoretical torque 823 Nm at max. operating pressure Weight 18.7 kg (without suction port), 19.3 kg (with suction port) Bending moment 23.8 Nm (without suction port), 24.6 Nm (with suction port) Accessory: BPT bypass valve For applications where the pump operates on a permanently driven PTO, the BPT bypass valve offers a reliable solution. It allows continuous operation of the pump: Without hydraulic oil overheating Without reducing pump service life Without modifications to the existing hydraulic system Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!

SLPD dual-circuit pump from Sunfab Logo of the manufacturer Sunfab in black and white
Dual Flow Pump SLPD by Sunfab

SLPD is a series of inline dual-flow pumps with low noise levels, available in eight sizes, including models with differentiated flow rates (small, large, combined). Thanks to its slim housing, the pump can be mounted directly on the PTO in tight spaces. Advantages: Independent of rotational direction Quiet operation across the entire speed range Long service life through optimized components Space-saving, slim housing Operating pressure between 330-350 bar Using the shopping cart function, you can send us an inquiry. We will contact you promptly to help you select the design suitable for your application!