Open-circuit piston pump reduces noise

Danfoss Power Solutions announces the launch of its X1P family of open-circuit piston pumps, built on the all-new X1 platform.

Designed for medium-power mobile machinery applications such as skid steer and compact track loaders, mini and compact excavators, and telehandlers, the X1P pump improves controllability, durability, and sustainability while reducing noise.

The X1P pump features a patent-pending swashplate design with roller-element cradle bearings, which reduces the pump’s length by up to 25 millimeters compared with similar pumps. This makes it the shortest 75-cc 280-bar pump on the market. The swashplate design also reduces hysteresis by up to 80%, delivering accurate, precise, and repeatable flow for smooth, reliable machine movement. 

The X1P pump’s housing and unique angular control mounting reduce hydraulic noise by up to 3dBA at 2,200rpm, increasing operator comfort. The control mounting also eliminates common leak points and extends control longevity.

Built on proven components with a goal of maximising lifetime and optimizing circularity, the X1P pump features a reliable, sustainable design. The pump combines Danfoss’ most trusted controls, shafts, bearings, and rotating kits, backed by millions of hours in the field. It reuses components from the existing portfolio to reduce environmental impact and waste at end of life. With fewer friction points in the design, remanufacturing is more streamlined, resulting in fewer parts that need to be replaced. 

The X1P pump features the highest standard temperature rating in its class — 115°C — which helps reduce cooling system requirements and wastes less energy cooling the machine.

The X1P pump’s flexible, modular design simplifies conversion between controls, shaft types, auxiliary pads, and couplings. The pump reuses many of the same part numbers from the Series 45 portfolio while keeping service kits consistent, resulting in fewer parts to stock and variations to manage. The pump’s design flexibility enables use in a wide variety of machines. With strategically positioned case drains, the X1P mounts easily in any orientation, even vertical. The pump can also help reduce hose needs with internal or front flange draining solutions.

X1P frame C is designed for medium-power applications with displacements ranging from 45-cc to 75-cc. The 60-cc and 75-cc displacements are now available. The pump features rated speeds of 2,400 to 2,600rpm and continuous pressure ratings of 280 to 310 bar, depending on size.