August 2021

Durability on breakwater

Established over 40 years ago, WA Limestone is a family-owned company with quarries strategically located all over the Perth Metropolitan Area. It is known as one of the biggest suppliers of road construction materials in Western Australia. The company’s director Steven Della Bona is no stranger to the quarrying industry. He has been instrumental in Limestone’s continued growth, which now encompasses the construction of sea walls and breakwaters among various other applications within the industry. He’s also a long-standing IQA member, former chairman of the IQA’s Western Australian branch and a former national IQA director.

The excavator will be involved in the heavy lifting of 650,000 tonnes of limestone and 300,000 tonnes of granite along the breakwater.


Recently, Della Bonna’s business took on the breakwater construction on the Ocean Reef Marina, near Joondalup, about 30km north of Perth. Work is scheduled to be complete by 2022. Commissioned by the WA Government, the two breakwaters will stretch for two kilometres. Each breakwater is up to 18.5 metres high from the ocean floor and includes 650,000 tonnes of
limestone and 300,000 tonnes of granite.



The ZX690LCH-5 is WA Limestone’s first-time purchase of a Hitachi excavator

...outstanding reliability with minimal down time.

The heavy lifting of such materials has been secured with the recent purchase of a Hitachi ZX690LCH-5 mid-sized excavator. Della Bonna said Hitachi machines are “renowned for their reliability, performance and fuel economy”.

The ZX690LCH-5 features an optimised hydraulic system and engine which assures Della Bonna the machine will not only run efficiently but maintain high durability – in spite of the harsh weather conditions it will be subjected to along the coastline.

Striving to meet customer satisfaction and go the extra mile, Della Bonna remarked that “so far the machine has had outstanding reliability with minimal down time. In particular, the operator
comfort and overall machine performance is second to none. We’re also enjoying the peace of mind the ConSite Oil technology has provided, allowing us to monitor the machine’s condition and operational performance in real time.

“I’m particularly impressed with the strength of the boom arm. It seems the Hitachi excavators are equipped with more steel in this area compared to other excavators which improves the overall
lifting capacity,” he added.

This is WA Limestone’s first purchase of a Hitachi machine. Della Bonna acknowledged the support of Hitachi Construction Machinery’s major accounts manager Steve Gunn. “He made it
very easy to access the information required and provided an honest timeline on machine delivery, so I could continue to meet the demands of the Breakwater construction project.”





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#TheOrangeFamily

Join us at one of Tasmania’s premier agricultural events, Agfest 2026, as we showcase our latest innovations, connect with the community, and explore how our solutions are helping shape the future of agriculture.

There will be an impressive lineup of Hitachi machines on display, giving you the chance to get up close and experience their performance and features firsthand.

Whether you’re looking for advanced machinery, smart technology or expert insights, our team will be there to chat and support your goals.

📍 Agfest 2026 
 📆7-9 May 2026
 🗺️️ Stand NN28

We look forward to seeing you there!
Lest we forget.
ANZAC Day

Today we honour the courage, sacrifice and service of all who have served. From all of us at Hitachi Construction Machinery Australia, we remember.
Great to connect with so many of you at DDT 👊

From the conversations to the machines on display, it was an awesome few days all round. Thanks to everyone who stopped by, had a chat, and made it one to remember.

That’s a wrap for 2026 - see you in 2027 🚧
Last chance to catch us at the 2026 DDT.

We’re at Stand D1 with a strong lineup of machinery on display and the team ready to talk through what works best for your operation.

Come down, have a look, and chat with our reps before it wraps up.
🔥Game on at DDT 2026 🔥

We’re turning up the fun at the Hitachi stand with competitions, giveaways & games all day long.

🎁 Win a branded 70L bar fridge
 🏈 Test your skills on the football wall toss to win a branded LANDCROS football
🎉 Plus more waiting for you!!

Think you’ve got what it takes? Come have a go and join the action.
Spot the Waste. Stop the Loss. With LANDCROS Connect

Monitor your machine performance in real time, maximise efficiency, and reduce downtime.

Visit Hitachi at DDT 2026 (Stand D1) and connect with a specialist who will show you how LANDCROS Connect gives you the insights you need to keep your machines performing at their best.

Curious to see how it works? Come by, ask questions & see it in action.
On the Ground with @spencercivilearthworks 

At Monarch Glen, Flagstone, serious earthmoving is underway - with over 500,000 cubic metres of cut to fill shaping the site.

Powered by the ZX490LCH-7, this operation is built on performance and endurance.
With 10–12 hour days and already 28 hours on the machine, the feedback is clear:

👉 “It’s got a lot of power.”

When the job demands consistency, strength, and reliability - this is where it counts.
Are Your Machines Working—Or Just Burning Fuel?

Every idle hour is costing your profit with diesel prices on the rise, Let HCA help you save on fuel burn.

Download LANDCROS Connect and Turn Data into Fuel Savings.

Make Every Litre Count

Contact us to learn more: https://hitachicm.com.au/landcros-connect/
Join us at one of Tasmania’s premier agricultural events, Agfest 2026, as we showcase our latest innovations, connect with the community, and explore how our solutions are helping shape the future of agriculture.

There will be an impressive lineup of Hitachi machines on display, giving you the chance to get up close and experience their performance and features firsthand.

Whether you’re looking for advanced machinery, smart technology or expert insights, our team will be there to chat and support your goals.

📍 Agfest 2026 
 📆7-9 May 2026
 🗺️️ Stand NN28

We look forward to seeing you there!
Lest we forget.
ANZAC Day

Today we honour the courage, sacrifice and service of all who have served. From all of us at Hitachi Construction Machinery Australia, we remember.
Great to connect with so many of you at DDT 👊

From the conversations to the machines on display, it was an awesome few days all round. Thanks to everyone who stopped by, had a chat, and made it one to remember.

That’s a wrap for 2026 - see you in 2027 🚧
Last chance to catch us at the 2026 DDT.

We’re at Stand D1 with a strong lineup of machinery on display and the team ready to talk through what works best for your operation.

Come down, have a look, and chat with our reps before it wraps up.
🔥Game on at DDT 2026 🔥

We’re turning up the fun at the Hitachi stand with competitions, giveaways & games all day long.

🎁 Win a branded 70L bar fridge
 🏈 Test your skills on the football wall toss to win a branded LANDCROS football
🎉 Plus more waiting for you!!

Think you’ve got what it takes? Come have a go and join the action.
Spot the Waste. Stop the Loss. With LANDCROS Connect

Monitor your machine performance in real time, maximise efficiency, and reduce downtime.

Visit Hitachi at DDT 2026 (Stand D1) and connect with a specialist who will show you how LANDCROS Connect gives you the insights you need to keep your machines performing at their best.

Curious to see how it works? Come by, ask questions & see it in action.
On the Ground with @spencercivilearthworks 

At Monarch Glen, Flagstone, serious earthmoving is underway - with over 500,000 cubic metres of cut to fill shaping the site.

Powered by the ZX490LCH-7, this operation is built on performance and endurance.
With 10–12 hour days and already 28 hours on the machine, the feedback is clear:

👉 “It’s got a lot of power.”

When the job demands consistency, strength, and reliability - this is where it counts.
Are Your Machines Working—Or Just Burning Fuel?

Every idle hour is costing your profit with diesel prices on the rise, Let HCA help you save on fuel burn.

Download LANDCROS Connect and Turn Data into Fuel Savings.

Make Every Litre Count

Contact us to learn more: https://hitachicm.com.au/landcros-connect/

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