// Catalogue

Hydraulic Systems & Power Units: Complete Hydraulic Circuits for Your Machine

Hydraulic systems & power units cover the whole circuit, from the power unit through the valves to the cylinders and motors. TSA Hydraulics Engineering supplies them within the Power Units family of our Systems range, alongside HPUs, Servo Hydraulic Systems, Variable Speed Pump Systems and Electro-Hydraulic Pump Systems.

Plenty of older machines have no circuit diagram left. Before we quote, we trace the circuit, draw it up and find the bottlenecks, so the new system fixes the real problem rather than copying it. Send photos, nameplates and what the machine needs to do, and we’ll put forward a system built from genuine or equivalent parts, shipped fast from Sydney.

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// Buying guide

What a Complete System Includes

Power unit: tank, pump, motor, filtration and cooling.
Valves: directional, pressure and flow control, on manifolds or in banks.
Pipework and hoses: sized for flow and pressure, with proper clamping.
Actuators: cylinders and hydraulic motors matched to the loads.
Accumulators: for fast strokes, shock absorption or emergency power.
Controls: switches, sensors and electrical panels, ready for your PLC.
Documentation: circuit diagram, parts list and settings sheet.

Typical Systems

Press circuits: fast approach, controlled pressing and decompression.
Clamping and fixture systems: holding parts securely while they’re machined.
Lifting and tilting: platforms, tables and handling equipment.
Test rigs: pressure, flow and endurance testing of components.
Marine and mobile: steering, winches and deck machinery.

How We Approach a System

Define the motions, forces, speeds and sequence.
Draw the circuit and agree it with you.
Select every component as one set, so nothing is the weak link.
Build and test with our fabrication partners where needed.
Hand over the documentation and support commissioning.

Common System Problems We Fix

Slow or uneven cylinder speeds from undersized valves or lines.
Oil running hot because a relief valve dumps flow all day.
Loads creeping down because of leaking valves or no load holding.
Shock and banging from valves that shift too fast.
Constant leaks from mixed thread types and tired fittings.

Most of these come from the circuit, not a single faulty part.

Upgrading an Existing System

You don’t always need to start again. Common upgrades include:

Replacing obsolete valves with current equivalents.
Adding a function, such as an extra cylinder or a faster stroke.
Cutting heat and energy with variable speed or servo drives.
Improving filtration and cooling to extend component life.
Adding sensors so faults show up before breakdowns.

Documents You Should Get

Every system we supply should come with:

A circuit diagram using standard symbols.
A parts list with part numbers for every component.
A settings sheet showing relief pressures, flow settings and accumulator pre charge.
A basic maintenance schedule.

Good documents make every future repair faster and cheaper.

Hydraulic Systems & Power Units Specifications to Check

Motions, forces, speeds and cycle sequence
Flow, pressure and power
Valve functions and control method
Actuator sizes and mounting
Pipework, hose routes and space limits
Controls, sensors and site standards

Why Buy From TSA Hydraulics Engineering

As a hydraulic systems & power units supplier, we take responsibility for the whole circuit, so the parts are chosen to work together. You get clear prices in AUD, OEM or equivalent components, and help sourcing hydraulic systems & power units replacement parts such as valves, cylinders, seal kits and filter elements. We tell you upfront which parts are genuine and which are equivalents.

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