Why On-Site Diesel Storage Matters More Than Ever
Reliable on-site diesel storage is foundational infrastructure for any operation that runs modern diesel equipment. Whether you're managing a broadacre farm, a civil construction depot, a mine site, or a transport hub, the right bulk diesel tank reduces delivery frequency, protects fuel quality, and keeps your fleet and plant running without interruption — even when supply chains come under pressure.
A-FLO Equipment supplies one of Australia's most comprehensive ranges of bulk diesel tanks — from portable 600L units through to 110,000L containerised self-bunded stations. With nine distinct product categories covering self-bunded and single-skin designs, poly and steel construction, and generator-specific and diesel/AdBlue combo configurations, the range covers every application. This guide explains what each category is, who it is built for, and how to choose the right tank for your site.
9Product categories in the A-FLO tank range
600LSmallest available — Gencube generator tank
110,000LLargest available — Fueltainer containerised unit
AS 1940Australian standard all self-bunded tanks comply with
Self-Bunded vs Single-Skin — The Fundamental Choice
Before selecting a specific tank, the most important decision is whether you need a self-bunded (double-wall) tank or a single-skin tank. This choice drives compliance requirements, installation cost, site suitability, and total cost of ownership more than any other factor.
Self-bunded (double-wall)
Two walls with 110% spill containment integrated into the tank body. No external concrete bunding required. Simplifies council and environmental approvals. Higher upfront cost — lower total installation cost. Suitable for most permanent and semi-permanent above-ground installations.
Single-skin
One wall, no integrated bund. Requires compliant external bunding — typically a concrete pad containing 110% of tank capacity — to meet AS 1940. Lower purchase price. Suited to established yards with bunding already in place, and mobile or portable applications.
Always confirm your site's specific obligations under AS 1940 and applicable state and local regulations before selecting and installing a bulk diesel tank. Requirements vary by jurisdiction, stored volume, site classification, and land use.
The A-FLO Bulk Diesel Tank Range
The following covers all nine product categories — what each is, who it is built for, and where to find out more.
A-FLO's core fixed-installation self-bunded diesel tank line. Steel construction with an enclosed lockable pump bay, double-wall spill containment meeting AS 1940, AS 1692, and AS 1657, and pump packages from 80LPM to 100LPM with optional hose reels and Fluidlink fuel management system.
- Farm fuel depots and on-property refuelling stations
- Workshop and transport depot fuel points
- Construction and civil sites needing permanent self-bunded storage up to 20,000L
- Operations wanting integrated compliance without external civil works
View Fuelbox range →
Compact, cube-format self-bunded diesel storage for sites where footprint, fast installation, and repositionability matter. Forklift pockets, lockable equipment bay, and full configuration options including BSmart and Fluidlink FMS. The right choice when you need self-bunded compliance in a tight space.
- Fleet depots and service yards with limited space
- Construction and civil depots needing a compact, compliant refuelling point
- Farm operations requiring a smaller on-property diesel storage and dispensing unit
- Sites that need a self-bunded tank that can be repositioned by forklift
View Fuelcube range →
Large-capacity containerised self-bunded diesel storage built on ISO-style footprints for straightforward transport and placement. Container-grade steel construction, integrated outer bund, lockable pump bay, and heavy-duty access platforms compliant with AS 1657. Configurable with high-flow submersible pumps and BSmart, Fluidlink, or Fluidtrack FMS.
- Mine sites and large civil projects requiring high-volume bulk diesel supply
- Large transport and logistics hubs with high daily refuelling throughput
- Remote and regional operations where large strategic reserves are essential
- Operations requiring rapid deployment via ISO container handling equipment
View Fueltainer diesel range →
A single containerised self-bunded station that stores and dispenses both diesel and AdBlue (DEF). Fully segregated compartments with DEF-compatible lines, pumps, hoses, and nozzles prevent cross-contamination. Eight capacity configurations with BSmart, Fluidlink AFM, and Fluidtrack FMS options. With the ongoing AdBlue supply shortage, on-site DEF storage is now a critical resilience measure for any Euro 5 or Euro 6 fleet.
- Mine sites and depots running Euro 5 and Euro 6 diesel fleets
- Remote operations where separate diesel and AdBlue deliveries are logistically difficult
- Operations building strategic AdBlue reserves during supply shortages
- Any site that wants to consolidate diesel and DEF infrastructure into one compliant station
View Fueltainer combo range →
Purpose-built for standby and prime power diesel generator fuel supply. Available with 12V electric pump, high-flow rotary drum pump, and filtered dispensing configurations — including feed and return line setups for direct generator connection. Keeps generators running without manual intervention during supply disruptions.
- Standby power systems at data centres, hospitals, and commercial buildings
- Remote telecommunications infrastructure and off-grid power installations
- Mine site and industrial backup generators requiring extended autonomy
- Critical services where generator fuel supply failure is not acceptable
View Gencube range →
High-capacity, cost-effective single-skin steel diesel storage for broadacre agriculture, earthmoving contractors, and large rural operations. Available with 240V pump packages at 70LPM and 80LPM, bowser kits, and filtration options. Requires compliant external bunding — best suited to established rural yards where bunding is in place or being installed.
- Broadacre and mixed farming operations needing high-volume on-property diesel storage
- Earthmoving and civil contracting yards with compliant external bunding in place
- Large rural depots prioritising storage volume and lower upfront cost over integrated containment
- Operations refuelling tractors, headers, trucks, and plant at peak seasonal demand
View Farm Refueller range →
Lightweight rotomoulded polyethylene with integrated double-wall spill containment. UV-stabilised, corrosion-resistant, and significantly lighter than steel equivalents — suited to coastal, wet, and chemically aggressive environments where steel tanks require ongoing rust maintenance. Fully configurable with pump, filtration, metering, and FMS options.
- Coastal and tropical operations where steel corrosion is a significant maintenance concern
- Fleet depots and farm fuel points needing self-bunded compliance with lighter handling
- Sites where installation without heavy lifting equipment is preferred
- Operations needing self-bunded storage up to 10,000L without the weight of a steel tank
View Poly Refueller self-bunded range →
Lightweight, corrosion-resistant portable diesel storage for farms, civil crews, maintenance teams, and fleet yards. Moulded tie-downs, forklift pockets, and lifting points for handling on utes, service vehicles, and trailers. External bunding required per AS 1940 — suited to mobile refuelling tasks and controlled areas with appropriate spill controls.
- Mobile and portable refuelling on farm properties and civil sites
- Ute tray, service vehicle, and trailer-mounted diesel supply
- Paddock top-up and remote field refuelling applications
- Operations needing a lightweight portable unit to complement a fixed main tank
View Poly Refueller single-skin range →
Compact self-bunded on-site petrol (ULP) storage supplied bare — without pumping equipment — so operators can specify their own petrol-rated, explosion-protected hardware. Petrol storage carries stricter electrical, ventilation, earthing, and hazardous area requirements than diesel. All pumps, hoses, and components must be Ex/IECEx/ATEX rated for ULP — standard diesel equipment must not be used.
- Fleets, service yards, and construction sites storing and dispensing unleaded petrol on-site
- Operations needing a purpose-built ULP storage tank to fit their own compliant pump package
- Sites with mixed petrol and diesel equipment requiring segregated storage
- Agricultural and industrial operations with light petrol-powered equipment alongside diesel fleets
View ULP Fuelcube range →
Quick Reference — Which A-FLO Tank Is Right for You?
Use this table to identify the best starting point based on your application, capacity requirement, and containment needs.
| Your application |
Capacity |
Tank type |
Recommended range |
| Fixed farm or depot diesel storage, steel, self-bunded |
5,000L–20,000L |
Self-bunded steel |
Fuelbox → |
| Compact self-bunded storage, tight spaces, repositionable |
1,000L–6,000L |
Self-bunded steel |
Fuelcube → |
| High-volume mine site or depot, containerised |
11,000L–110,000L |
Self-bunded steel |
Fueltainer → |
| Diesel and AdBlue combined, Euro 5/6 fleet |
9,200L–94,710L diesel |
Combo self-bunded |
Fueltainer Combo → |
| Standby or prime power generator fuel supply |
600L–8,000L |
Generator-specific |
Gencube → |
| High-capacity rural storage, single-skin, external bunding in place |
4,500L–28,000L |
Single-skin steel |
Farm Refueller → |
| Self-bunded poly storage, coastal or corrosive environments |
5,000L–10,000L |
Self-bunded poly |
Poly self-bunded → |
| Portable diesel, mobile refuelling, ute or trailer |
3,000L–10,000L |
Single-skin poly |
Poly single-skin → |
| On-site petrol (ULP) storage, bare tank for compliant pump fitout |
1,000L–4,500L |
Self-bunded poly (bare) |
ULP Fuelcube → |
What to Consider Before You Specify
Choosing the right tank involves more than matching capacity to consumption. Before specifying, work through the following:
- Daily and weekly consumption — calculate average consumption across all diesel equipment and identify peak seasonal demand. Size for peak, not average.
- Delivery frequency and logistics — how often can fuel be delivered to your site? For remote operations, the answer directly determines your minimum storage requirement.
- Self-bunded vs single-skin — does your site have existing compliant bunding? If not, self-bunded is almost always the lower total-cost option once installation is factored in.
- Site conditions — coastal, tropical, or chemically aggressive environments favour poly construction. Heavy-duty permanent installations with high throughput favour steel.
- Pump and dispensing requirements — match pump flow rate to your fastest refuelling requirement. A construction site refuelling one excavator at a time has different needs to a fleet depot turning around multiple trucks.
- Fuel management and accountability — if multiple users, vehicles, or cost centres access the tank, an FMS pays for itself quickly in fuel cost allocation, loss prevention, and compliance reporting.
- AdBlue dependency — if you run Euro 5 or Euro 6 equipment, on-site AdBlue storage is now a resilience requirement, not a convenience. Consider a Fueltainer combo unit.
- Compliance pathway — confirm AS 1940 obligations, state EPA requirements, and local council approvals before finalising tank selection and site layout.
A note on the 2026 fuel supply situation
The Middle East conflict and associated supply disruptions that emerged in early 2026 have reinforced what experienced fleet, farm, and mine site operators already knew: on-site diesel storage is not a cost — it is operational insurance. The businesses that navigated the March 2026 crisis best held between two and six weeks of reserve on-site. Government excise relief currently in place until late June 2026 makes this an opportune time to invest in storage capacity.
Compliance and Installation
Installing bulk diesel storage in Australia involves AS 1940 compliance, state EPA requirements, and local council approvals that vary by jurisdiction. The compliance pathway is more straightforward than many operators expect — particularly with self-bunded tanks, which eliminate the need for a separate engineered bund and typically streamline the approvals process significantly.
A-FLO manages the full process — from site assessment and technical documentation through to installation, commissioning, and compliance sign-off — with national service and installation capability across all Australian states and territories. The compliance conversation should start before you specify a tank size, not after.
Not sure where to start? A-FLO's team of specialists can help you size and configure the right bulk diesel storage solution for your site, fleet, and compliance requirements. Contact your local representative or request a quote online.
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