Edge work is the job nobody on the crew wants. On a polished floor, the 30-inch planetary handles the field in an afternoon and then someone spends the rest of the day on their knees with a hand grinder, trying to make the perimeter match. The Aztec UltraEdge is the machine that ends that: a walk-behind propane edger that grinds and polishes to within 1/4 inch of a wall and reaches 3 inches under a shelf as low as 5.25 inches, with the operator standing up.
It is a companion machine, not a standalone purchase for most buyers. Aztec designed the UltraEdge and the UltraGrind as a pair inside the WorkSmart system, and the quick-change plates are interchangeable - so the same diamonds, the same fuel and the same dust-control setup cover both the field and the perimeter.
Built for
- Perimeter and column work that has to match the field. Grinding and polishing right up to walls, columns and thresholds so the finished floor reads as one surface.
- Occupied retail and grocery. Reaching under display gondolas, racking bases and toe-kicks where the fixtures are staying put and a full-size planetary cannot go.
- Crews still edging by hand. Hours of kneeling with a hand grinder produce operator fatigue and inconsistent finishes. A walk-behind edger does the same work faster and more evenly.
- Aggressive removal and fine polishing on the same machine. Grinding pressure adjusts from 75 to 175 lbs with the included weight plates, and head speed runs 385 to 650 RPM - heavy and slow for metal-bond cutting, lighter for resin polishing passes.
- Sites with no usable power. Same propane advantage as the UltraGrind: no cord runs, no generator, no waiting on an electrician.
Propane, indoors, honestly
The Kawasaki 603cc PurePower LPG engine is EPA and CARB certified with a catalytic muffler and carries LEED and GS-42 certifications, which makes it appropriate for ventilated commercial interiors. Ventilation and maintenance are still required, not optional. Documented carbon monoxide incidents on propane floor equipment trace to sealed spaces and to engines running rich from dirty air filters and skipped oil changes. Keep the service schedule, keep air moving, and monitor. Enclosed rooms that cannot be ventilated, occupied offices and medical spaces call for an electric machine instead.
Specifications
- Grinding width: 13 in.
- Production rate: 300 to 400 ft per hour
- Wall clearance: grinds and polishes within 1/4 in. (0.6 cm) of walls
- Under-shelf reach: 3 in. (7.6 cm) under a 5.25 in. (13.3 cm) high shelf
- Engine: Kawasaki 603cc 18 HP PurePower LPG block, EPA and CARB certified, 17.19 HP on LPG
- Engine speed: 3,400 to 2,200 RPM; head speed 385 to 650 RPM
- Grinding pressure: 75 to 175 lbs, adjustable with the included weight plates
- Head configuration: gear driven, one offset head holding 4 diamonds - a full set is four 3 in. pucks
- Weight: 478 lbs; shipping weight 523 lbs
- Dimensions: 50 in. L x 30 in. W x 42 in. H
- Sound level: 86 to 87 dB(A)
- Fuel system: custom propane carburetor, centrifugal clutch, catalytic muffler
- Safety and controls: automatic oil shut-off system, 12V battery key start, swiveling multi-positional handle
- Construction: steel body with removable panel for cleaning, vacuum port
- Tooling: quick-change plates interchangeable with the UltraGrind; resin bond 50 through 3000 grit, metal bond 10-segment in 30, 50 and 100 grit, hybrid DT in 16, 30 and 50 grit; optional magnetic attachment system
- Certifications: EPA, CARB, CE, LEED, GS-42; Blue Sky engine optional
- Warranty: 2 years engine, 1 year machine
- Part of the Aztec WorkSmart cordless grinding, honing and polishing system
Frequently asked questions
How close to the wall does it actually get?
It grinds and polishes to within 1/4 inch of a wall, and reaches 3 inches under a shelf as low as 5.25 inches. That is the reason the machine exists - it removes almost all of the hand grinding that would otherwise be needed at the perimeter and under fixtures.
Do I need this if I already have the UltraGrind?
The two are designed as a pair within the Aztec WorkSmart system. A 30-inch planetary cannot reach the perimeter, under fixtures or into corners, so without an edger that work falls to a hand grinder. Because the quick-change plates are interchangeable, the same diamonds run on both machines.
How many diamonds does it take?
One head holding four 3-inch pucks, so a complete set is four diamonds, sold individually. Aztec lists resin bond from 50 through 3000 grit, metal bond 10-segment in 30, 50 and 100 grit, and hybrid DT in 16, 30 and 50 grit.
Can I adjust how aggressive it is?
Yes. The machine ships with a weight kit, and grinding pressure adjusts from 75 to 175 lbs by adding or removing plates. Head speed runs 385 to 650 RPM, so you can set it heavy and slow for metal-bond cutting or lighter for resin polishing passes.
Is it quiet enough for occupied spaces?
At 86 to 87 dB(A) it is a propane engine, not a quiet machine, and it needs ventilation. For occupied offices, medical facilities or noise-sensitive tenants, an electric or battery edger is the better choice. For after-hours retail, warehouse and new-construction work, propane is the practical fit.
Discount Cleaning Products is an authorized dealer for the professional cleaning and surface-prep brands we carry, with US-based product support from people who use this equipment. If you are unsure which part or grade fits your machine or your slab, contact us before you order and we will confirm the fit.
