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Precision Light and Air Pty Ltd

Name: Precision Light and Air Pty Ltd
Address: 17 Sir Laurence Drive, Seaford, VIC, AU
Telephone: +61 3 9786 1711

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Seaford, VIC
Precision Light and Air Pty Ltd

Precision Light & Air is an instrumentation manufacturer specialising in process analysers for the minerals processing sector.

We are an instrumentation manufacturer specialising in process analysers for the minerals processing sector. Clarifier, Thickener, Washer, and CCD Mud Divers are our speciality. Our analysers are particularly suited to high-scale and high temperature applications as seen in the Alumina and Nickel Industries.

09/06/2026

Density measures mass per unit volume, not inter‑particle bonding strength.

Maximising the efficiency of thickeners and pumpability of the underflow slurry will also require continuous monitoring of settling zones and the rheological properties of the slurry.

Two slurries at identical density can exhibit fundamentally different rheological behaviour and bed formations depending on particle-size distribution, clay content, ore mineralogy, and flocculant response.

Learn how Bed-Levels, Viscosity and Yield-Stress (Rheological) Measurements allow operators to move toward a more informed and predictive control strategy for Thickeners and Underflow Slurry.

Link to the article: https://buff.ly/sw18nIJ

18/05/2026

The Case for Measuring Bed-Levels Inside the Thickener

In solid-liquid separation, settling solids form four distinct zones within a thickener. Each zone serves a specific function, and maintaining adequate heights is crucial for steady-state operation.

Monitoring these transition zones can help determine:

✅ The effectiveness of Flocculant Dosing (by tracking the Interface)
✅ Whether there is sufficient bed height for achieving the Target Underflow Density (by tracking Mud & Interface)
✅ Early warning signs before process upsets (abrupt changes in bed-levels)

The bed-level data from the SmartDiver® can share valuable insights, to give operators more confidence in managing their operating levers - floc dose and underflow pumps.

Read more: https://buff.ly/cZdYNqt

27/04/2026

Visit PLA next week at ALTA 2026 in Perth!

Find us at Booth 12 to:

✅ Share your Dewatering challenges
✅ Learn more about how bed level data can add more visibility in your Thickener/CCD Tanks.

SmartDiver® transforms complex Thickener behaviour into actionable insights!

More info: https://buff.ly/lpH6ZiU

Excited to see you there!

15/04/2026

PLA team will be at ACG PASTE 2026, in Lisbon, Portugal!

Meet us to:
✅ Share your Dewatering challenges
✅ Learn more about how bed level data can add more visibility in your Thickener/CCD Tanks.

SmartDiver® transforms complex Thickener behaviour into actionable insights!

More info: https://buff.ly/W0TdbaL

Let us know if you will be coming – we’d love to see you there!

23/03/2026

SmartDiver® vs Ore-Processing Environment

Thickeners in ore processing are among the most demanding environments for any gear, let alone sensitive instrumentation that provides critical data for dewatering operations. High temperatures, pH extremes, scaling & varying particle sizes make it very challenging.

Having any gear to operate and last in such environments, with minimum maintenance, is not an unreasonable requirement.

Over the last couple of decades, we have engineered and re-engineered our equipment — after each site installation, after every piece of feedback — to deliver a SmartDiver® that reliably operates in the harshest ore-processing environments, with minimal maintenance.

We have the track record to back it. Our longest-running SmartDiver® has been operating at a Rio Tinto Iron Ore site in Australia since 2009.

25+ years. 500+ global installations. Across Alumina, Iron Ore, Copper, Gold, Rare Earths.

Read an Alumina Case Study: https://buff.ly/l2X4CXf

09/03/2026

SmartDiver® Rake Integration: Avoiding Collisions with Continuous Rake Monitoring

In Auto Mode, the SmartDiver synchronises its dive cycles with the rake arm rotation using a proximity tag-and-switch system mounted on the rake drive. When a rake arm passes the dive position, it triggers a signal that the SmartDiver uses to calculate a safe window before descending.

The system also handles both single-direction and bi-directional rake arms. For bi-directional rakes, directional pulse sequencing distinguishes forward from reverse rotation, ensuring the timing logic works correctly regardless of rake direction.

The safety net: If the rake changes speed or direction, which impacts the safe window, the system will not initiate a dive.

With continuous rake monitoring, the system can operate safely and automatically, and provide real-time bed-level measurements for thickener control.

Read more: https://buff.ly/mJghncp

26/01/2026

Monitoring Mud Levels: A Control Parameter for Underflow Management

The height of the mud bed correlates with solids residence time—a key factor in compaction and underflow density. Research has established that adequate solids residence time in this zone improves dewatering efficiency.

The Control Relationship:
Operators can adjust underflow discharge rates based on real-time mud level data to maintain optimal bed height for target density requirements.

Optimum Mud Level → Adequate Residence Time → Improved Compaction

Operators can now have access to these data points with a SmartDiver®, to help push more tonnes with confidence.

Read more: https://buff.ly/jYibnIR

11/01/2026

Definitive Flocculant Dosing using Interface & Mud Level Measurements.

The distance between Interface and Mud Level—the Settling Zone—correlates directly with flocculant effectiveness.

In the Settling Zone of a Thickener, solids settle under gravity, concentration increases with depth and settling rates progressively slow. Flocculants enhance particle aggregation in this zone, and the height of the zone indicates dosing efficiency:

Contracting Zone (interface approaching mud) → Faster settling → Reduce flocculant
Expanding Zone (increasing separation) → Slower settling → Increase flocculant

With SmartDiver® data, differential control using interface-mud separation provides a more data-driven approach towards flocculant dosage.

Learn more: https://buff.ly/gPwjEEp

21/12/2025

Warm Holiday Wishes as we dive into the festivities!

As 2025 descends, we want to extend our gratitude to our clients, suppliers, and fellow team members. Your support has been instrumental.

Holiday Closure: Our office will be closed from December 24th, 2025 to January 4th, 2026.

As we ascend back, get refreshed from the holidays, we look forward to our next dive in the New Year!

Wishing you a Merry Christmas and a fulfilling New Year.
Wishing you joy and peace,
PLA Team

08/12/2025

Four Sensor Technologies - No Blind Spots!

SmartDiver® can be configured with four Sensor options. No matter your application, we can recommend an ideal solution.

✅ Ultrasonic (Default) - All Thickener types, Clarifier and CCD applications across all Ore types. High temperature tolerance.
✅ Light Attenuation - Fine Particle Suspensions and low-to-medium Solids Concentration.
✅ Electrodeless Conductivity - Chemical-intensive Mineral Processing Circuits. High temperature tolerance.
✅ Backscatter - Works from very low (0.001%) to extremely high (100%) Suspended Solids. High temperature tolerance.

Each technology addresses specific slurry characteristics and process conditions. Contact us or click here to know more: https://buff.ly/MsOEXsb

Address

17 Sir Laurence Drive
Seaford, VIC

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Telephone

+61 3 9786 1711

Website

http://www.plapl.com.au/

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