Stephanie Metcalf
Last updated 1st May 2026

Hydraulic Power Packs Compared: Micro vs Mini vs Industrial (and when to use each)

Hydraulic Power Packs Compared: Micro vs Mini vs Industrial (and when to use each)

If you’re sizing up a hydraulic power pack, one of the first questions you’re likely asking is: how small can I go before performance becomes a problem? Or on the other end, is this big industrial unit complete overkill for what I need? Either way, getting the right match matters. And it’s not just about flow and pressure. Space, duty cycle and available power all come into play.

In this guide, we’ll run a straight-up hydraulic power pack comparison between micro, mini, and industrial units. No fluff. Just real answers to help you pick the right unit for your job.

Compact Hydraulic Power Unit

What Is a Hydraulic Power Pack and Why Size Really Matters

A hydraulic power pack (or hydraulic power unit) is the bit that drives hydraulic energy through your system. It houses the hydraulic pump, reservoir, valves, motor (usually electric), and associated components. The job? Convert mechanical energy into hydraulic pressure and flow to drive actuators, cylinders or motors.

Where size makes a difference:

  • Flow rate: Bigger packs handle higher litres per minute (lpm)
  • Pressure output: Small units often top out under 200 bar
  • Duty cycle: Micro units are built for bursts; industrial units for long hauls
  • Available space: Mobile setups can’t always fit a full-sized tank

You’ll see smaller systems used in vehicle lifts or portable tools. Bigger ones? Think steel presses, marine winches, or automated factory lines.

Micro Hydraulic Power Packs

Micro hydraulic power packs are the smallest of the bunch. Compact, low weight, and usually powered by a small DC electric motor, they’re made for tight spaces and light-duty work.

When to Use a Micro Hydraulic Pack

If you’re working with very limited install space and only need short bursts of hydraulic energy, a micro pack might be perfect. These units are often used in:

  • Medical devices
  • Lightweight tail lifts
  • Portable hydraulic tools
  • Robotics

Key features:

  • Reservoirs often less than 1 litre
  • Pressure up to around 150 bar
  • Small DC motor driven
  • Integrated valves and controls

Limitations:

  • Intermittent duty only
  • Short flow bursts (low volume)

The Micro 90 DC hydraulic power unit is suitable for compact applications.

Mini Hydraulic Power Packs

Mini hydraulic power packs fill that middle ground, compact but capable. These are common in mobile kit where there’s a bit more room to play with but full industrial size is too much.

Ideal Scenarios for Mini Power Packs

You’ll find these on:

  • Tail lifts on delivery vehicles
  • Mobile platforms
  • Small machines
  • Portable hydraulic equipment

Typical specs:

  • Reservoir: 1–10 litres
  • Flow: 1–6 lpm
  • Pressure: Up to ~200 bar
  • Motor: DC or small AC

Mini packs can run longer than micros and are often modular, letting you bolt on different valve stacks or flow configurations.

Hydrastore’s Mini 130 DC unit is suited to both vehicle-based and mobile systems.

Standard Hydraulic Power Unit

Industrial Hydraulic Power Packs

When performance, endurance, and control are non-negotiable, you’re in industrial territory.

Built for High Flow and High Pressure

Industrial hydraulic power packs can push flow rates above 100 lpm, run continuous duty, and offer fine-tuned control using logic valves, sensors, and PLCs. Expect larger tanks, stronger pumps, and integrated cooling where needed.

Applications:

  • Production lines
  • Presses
  • Marine systems
  • Agricultural handling
  • Waste and recycling kit

Hydrastore’s HE Series includes:

See our full range of standard industrial power packs available for purchase online

Micro vs Mini vs Industrial: Feature Comparison

Feature

Micro

Mini

Industrial

Reservoir Size

<1L

1–10L

10L to 200L+

Pressure Range

Up to 150 bar

Up to 200 bar

200–300+ bar

Flow Rate

Up to 1 lpm

1–6 lpm

6 to 100+ lpm

Duty Cycle

Short burst only

Moderate/intermittent

Continuous

Motor Type

Small DC

DC or small AC

AC (3-phase common)

Common Uses

Medical, tools, robotics

Lifts, mobile kit

Presses, conveyors

Control Options

Basic

Modular valve blocks

Advanced + sensors

 Hydraulic Power Pack

How to Choose the Right Hydraulic Power Pack

Here’s how to get it right the first time:

  • Know your pressure and flow needs
  • Understand the cycle: Intermittent or continuous?
  • Factor in install space and access
  • Match power source: 12/24V DC or 3-phase AC?
  • Decide on off-the-shelf or bespoke

Need help? Hydrastore builds custom hydraulic systems that meet space, performance and budget requirements. Whether you’re working with unusual mounting, low-noise environments, or integrated control logic, we can build it.

Learn more about Hydrastore’s bespoke hydraulic power pack design

Bespoke vs Off-the-Shelf: When Custom Makes Sense

If you’re under time pressure or your requirements are standard, off-the-shelf is the way to go. Hydrastore stocks compact and industrial packs ready to ship.

But if you’re dealing with:

  • Space or weight constraints
  • High-capacity or high-pressure needs
  • Harsh environments
  • Integration with complex hydraulic circuits

…then bespoke will give you more control, flexibility, and performance.

View examples of our bespoke hydraulic power unit solutions

Sizing a Hydraulic Power Pack

When it comes to sizing a hydraulic power pack, you’ll need to know:

  • Flow rate (L/min): Based on actuator speed
  • Working pressure (Bar): Based on load force
  • Reservoir size: 3x flow rate is a good start
  • Electric motor power:
    kW=(FlowxPressure)/600kW = (Flow x Pressure) / 600kW=(FlowxPressure)/600

Want to double-check your calculations?

Use our hydraulic calculators to make it easy. Find out more in our guide on Calculating Hydraulic Power Pressure Flow and kW Output.

Final Thoughts: Pick the Pack That Fits

Choosing the right hydraulic power pack isn’t about just picking the biggest unit with the most pressure. It’s about application fit. Think space, cycle time, power availability and the job at hand.

Hydrastore covers the full range, from compact Micro 90 units to 200L industrial builds. And if what you need doesn’t exist yet, we’ll help you design it.

Shop off-the-shelf micro, mini and industrial hydraulic power packs or speak to one of our expert team about a custom design today.

FAQs

Q: What’s the difference between micro and mini hydraulic power packs?
A: Mainly size and output. Micro units are sub-1L and lower pressure; mini units offer slightly more flow and pressure and suit mobile or medium-duty jobs.

Q: Can I use a mini pack where a standard unit is recommended?
A: Sometimes. It depends on the duty cycle and output. If it’s borderline, go bigger.

Q: Are bespoke packs much more expensive than off-the-shelf?
A: Not always. For certain applications, a custom pack might actually save cost in performance, downtime or integration.

Q: What if I need a unit for continuous operation?
A: Stick to industrial packs with AC motors and larger reservoirs. You’ll also want proper cooling.

Q: Where can I buy a standard hydraulic power pack online?
A: Hydrastore offers a full range of standard and compact power packs on our online webshop.