When a paint plant runs flat out, the pumps moving product around the floor are easy to take for granted. At Crystalite, one of Australia's leading line-marking paint manufacturers, those pumps were quietly costing a fortune to run. Swapping them out for Graco Quantm electric diaphragm pumps changed that, and the headline number is hard to argue with: more than six million litres of paint through a single pump, with no diaphragm or seal change.
The customer
Crystalite has been manufacturing line-marking paint in Australia since 1986. From its plant at South Kempsey on the NSW Mid North Coast, the APAS-recognised, ISO 9001 certified business produces the waterborne road-marking paint, thermoplastic, cold-applied plastic and glass beads that end up on roads, car parks, airfields and warehouse floors right across the country.
Its flagship waterborne paint is demanding to pump. It runs at roughly 2,500 to 3,000 cP, a specific gravity of 1.63 to 1.73, and 76 to 81 per cent solids by weight, loaded with heavy pigment, in-suspension glass beads and angular aggregates. That rules out most pump types. Centrifugals stall on the viscosity, gear pumps shear the binder, and tight-clearance pumps wear out on the abrasives. Air-operated double-diaphragm (AODD) pumps handle it comfortably, which is why Crystalite ran them for years.
The problem with compressed air
A traditional AODD pump is driven by compressed air, and compressed air is expensive to make. By the time a compressor has converted electricity into air, pushed it down the lines and through the pump, only around 10 to 15 per cent of the energy you paid for is actually moving fluid. The rest is lost as heat and noise. Crystalite's compressor was running at capacity, the paint room was loud, and the business was already pricing up a new 75 hp screw compressor just to keep up.
The switch to electric
Working with GO Industrial, Crystalite moved its paint transfer onto Graco Quantm electric double-diaphragm pumps. The clever part is that nothing changes at the wet end. Same diaphragms, same check valves, same paint flow. What disappears is the entire compressed-air loop. In its place is a single transverse-flux electric motor (Graco's FluxCore design) driving the diaphragm rod directly, with no gearbox, no variable speed drive, no air valve and no muffler. The whole pump has essentially one moving part.
The efficiency difference is dramatic. Where a pneumatic AODD lands around 10 to 15 per cent wall-plug-to-fluid efficiency, the Quantm runs at roughly 85 per cent. You are simply not paying to make compressed air any more.
Six million litres, one pump
The pump Crystalite installed first, a 2 inch Quantm i120, has now transferred well over six million litres of waterborne road-marking paint. In that time it has had no diaphragm change, no ball or seat change, and no centre-section service. It is still running today.
There is a sound engineering reason behind that longevity. A pneumatic AODD keeps throwing its diaphragms back and forth whether or not fluid is actually moving. Hit a closed valve or dead-head against a full tank and the air valve keeps firing, and that is where most diaphragm fatigue comes from. A Quantm simply stalls. The motor holds torque at zero RPM and waits, so the diaphragms are not being cycled to death when the line is loaded.
What changed on the floor
- Quieter by around 10 dBA. The paint room dropped from over the 85 dBA workplace exposure limit to comfortably under it. Operators can talk across the line without hearing protection.
- Real flow control. A dial on the motor sets the speed, so there is no more cracking a discharge valve or backing off an air regulator to slow the pump down.
- Stall-safe and run-dry friendly. Hit a closed valve and the motor just waits. Run a drum dry and it primes back up when fluid returns. No tantrums, no muffler icing on cold mornings.
- No air infrastructure to babysit. No filter regulators dripping condensate, no air-line leak hunts, no muffler housekeeping.
From one pump to a fleet
What started as a single pump has grown into a fleet of Quantm units across the 1 inch (i30) and 2 inch (i120) range, including hazardous-area DG models for the solvent-borne and cold-applied plastic side of the plant. Because every Quantm shares the same control dial, the same wiring and the same wet-end logic, Crystalite scaled up without retraining the team or reworking pipework standards.
Across the fleet, the energy saving runs to tens of thousands of dollars a year, modelled on Graco's own ROI methodology, and that is before you count the screw compressor that no longer needs buying, the diaphragm replacements that are not happening, and the compliance win on noise.
Both ends of the paint
The Crystalite project sits in a spot very few suppliers occupy. The same Graco family that makes the Quantm pumps now running Crystalite's plant also makes the LineLazer, RoadLazer and ThermoLazer linemarking gear that contractors, councils and road authorities use to lay Crystalite's paint on the road. GO Industrial supplies and supports both ends: the pumps that make the paint, and the equipment that lays the stripe. That is a rare position for a fluid-handling specialist to hold, and it is what makes us a genuine long-term partner rather than just a box-shifter.
Talk to us about Quantm
If you are moving viscous, abrasive or high-solids fluid on compressed air, there is a good chance a Quantm will cut your energy bill, your noise and your maintenance in one move. Explore the full Graco Quantm and diaphragm pump range, or get in touch with our team at sales@goind.com.au or 07 3204 2240 and we will help you size the right pump for the job.