Which Trailer Vac Is Right for You?

A closer look at the Ditch Witch HX20-150 and AX30-300

When it comes to vacuum excavation, choosing the right machine isn’t just about specs — it’s about matching the equipment to the way you work. Whether you’re tackling tight urban jobs or larger-scale civil projects, the right trailer vac can make all the difference in productivity, efficiency, and overall jobsite performance.

At Ditch Witch CEA, two machines continue to stand out across Australia: the HX20-150 and the AX30-300. Both are built with the operator in mind — but each brings its own strengths to the table.

HX20-150: Compact, Capable, and Ready to Work

If your work demands mobility, quick setup, and access to tighter spaces, the HX20-150 delivers in all the right ways.

With a 567L spoil tank and a 25.5HP Kohler petrol engine, this unit is designed for efficiency without unnecessary bulk. Its lighter 2,800kg ATM makes it easier to tow and position, especially in urban environments or smaller worksites.

The 3,000 PSI adjustable water system gives operators the control needed for precise excavation, whether you’re potholing, trenching, or performing utility maintenance.

Why operators choose the HX20-150:

• Ideal for tight-access and residential work
• Easy to transport and manoeuvre
• Efficient performance without overcomplicating the job
• Perfect for crews needing a reliable, entry-to-mid-level vac solution

This is the machine that proves you don’t need size to deliver results — just smart, dependable design.

AX30-300: Built for Bigger Jobs and Higher Demand

When the job gets bigger, the AX30-300 steps up.

With a 1,135L spoil tank — double the HX20 — and a 32.5HP Kubota diesel engine, this machine is built for longer run times and higher productivity. The 576 CFM blower provides powerful suction, helping crews move material faster and more efficiently.

Its 4,499kg ATM gives it a solid, stable platform, while the same 3,000 PSI adjustable water system ensures precision isn’t sacrificed for power.

Why operators choose the AX30-300:

• Greater capacity for larger or longer jobs
• Strong vacuum performance for faster excavation
• Diesel power for durability and efficiency
• Ideal for civil, infrastructure, and high-demand worksites

This is the machine for operators who want to maximise output and minimise downtime.

Shared Features That Matter on Every Job

No matter which model you choose, both machines are designed to make life easier on site:

• Available as skid-mounted or trailer configurations
• Kerbside controls for safer, more convenient operation
• Easy-access filtration systems for simplified maintenance
• Integrated hose reel for efficiency and organisation

Every detail is built around real-world use — because downtime, complexity, and inefficiency simply aren’t options on today’s jobsites.

So, Which One Is Right for You?

It comes down to your workload:

• Go HX20-150 if you prioritise mobility, accessibility, and lighter jobs
• Choose AX30-300 if you need capacity, power, and performance for larger-scale work

Either way, you’re investing in a machine designed to perform — and built to last.

Ready to find the right vac for your fleet?

Get in touch with the Ditch Witch CEA team and see how these machines can transform the way you work.

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