Bent-axis pumps deliver superior pressure capability compared to gear pumps, reaching 350 BAR working pressure with 400 BAR maximum ratings.
Available displacement options from 12L to 130L per 1000 RPM accommodate light commercial through heavy construction applications requiring sustained high-pressure hydraulic power.
Determine displacement requirements
Flow output directly correlates with displacement and engine speed, creating your system’s operational capability. Calculate litres per minute demand during peak operation cycles to establish minimum displacement needs.
A 25L pump at 2300 RPM delivers 57.5 litres per minute for moderate applications. Compare this with 130L displacement, providing 208 litres per minute at 1600 RPM for high-flow operations requiring substantial hydraulic power.
Related: A guide to gear pumps
What are your pressure capabilities?
Working pressure capabilities determine continuous operation limits, whilst maximum ratings protect during load spikes. Applications requiring frequent high-pressure cycles benefit from 350 BAR working specifications rather than standard 280 BAR alternatives.
Consider system component ratings when selecting pressure specifications to ensure compatibility. Maximum 400 BAR ratings across all displacement variants protect against hydraulic shock loading without requiring oversized downstream components.
Are there any speed constraints?
Operating speed limits vary between displacement variants, with smaller pumps tolerating higher RPM than larger models. The 12L variant operates continuously at 2300 RPM, and 130L models limit operation to 1600 RPM maximum.
Match PTO speed capabilities to pump specifications during all operating conditions. Exceeding speed limits causes premature wear through centrifugal loading and inadequate lubrication circulation within internal components.
Related: What kind of hydraulic pump do I need?
Connection suitability
Port sizing affects system efficiency and installation complexity across different displacement ranges. For instance, smaller pumps use 3/4″ BSP connections, and larger variants require 1″ BSP ports for adequate flow capacity.
Split flange inlet designs with integral seals simplify installation compared to threaded connections. Bi-directional rotation capability eliminates PTO orientation concerns whilst maintaining consistent performance regardless of shaft direction.
Related: How hydraulic oil piston pumps work
Factoring in weight
Weight considerations range from 10 kg for compact models to 17 kilograms for maximum displacement variants. Mounting structures must accommodate operational forces plus vibration loading from connected equipment during pressure cycling.
Space limitations influence displacement selection when pump capacity exceeds installation requirements. Choose displacement based on actual flow demands rather than the maximum available capacity to optimise system efficiency and reduce component stress.
Matching application requirements
Bent axis design provides smooth operation with reduced pulsation compared to axial piston alternatives. Continuous duty ratings suit applications requiring sustained operation without frequent pressure cycling or thermal loading.
Select displacement and pressure specifications based on operational demands rather than peak requirements. Oversized pumps reduce efficiency, and undersized units operate beyond design limits, reducing service life and increasing maintenance frequency.
We can provide tailored quotations and availability information on bent-axis pumps. Call 01262 601600 for assistance today.
Additional reading: A spotlight on our truck hydraulics range
