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Features

Quick and Easy Height Adjustments

Rear view of a green grooming mower implement showing a single treaded support wheel, adjustment post, and chain curtain

The GM21 Series Medium-Duty Grooming Mowers' stamped wheel yokes with air tires have spacers for quick and easy height adjustment.

Rugged Gearbox

Close-up of a green gearbox with cooling fins mounted on a grooming mower, connected to a yellow PTO driveline and secured with metal supports

The GM11 and GM21 Series Medium-Duty Grooming Mowers come with a 50-hp (37.3-kW) rugged gearbox. Cooling fins help extend the life of the gearbox.

Quality Cut With High Blade-Tip Speed

Underside of a green mower deck featuring three rotary blade housings, structural framing, and rear gauge wheels

The high blade-tip speed and precise blade overlap work together to ensure exceptional strength, performance, and a quality cut when using the Frontier™ grooming mowers.

Specifications

Blade

Blade Quantity6
Average Tip Speed14106 fpm
Average Tip Speed4299.5 m/min
Spindles - Quantity3
Spindles - CompositionCast iron
Spindles - BearingShielded tapered
Overlap1.375 in.
Overlap3.5 cm
Dimensions13x2.75 in.
Dimensions33.0x7.0 cm
CompositionHeat treated alloy steel

Caster Wheels

Quantity4
Solid Caster WheelsYes
Solid Caster Wheels - Size12x4 in.
Solid Caster Wheels - Size30.48x10.2 cm
Pneumatic Caster Wheels - Size13x6.5 in.
Pneumatic Caster Wheels - Size33.02x16.51 cm
BearingsShielded roller

Belts

TypeCX, polyester/cogged
Quantity2
AdjustmentSlotted track

Dimensions

Overall Machine Width92 in.
Overall Machine Width233.7 cm
Cutting Width90 in.
Cutting Width228.6 cm

Warranty

Machine1 year
Gearbox1 year

Hitch

Hitch CategoryCategory 1

Weight

Operational1102 lb.
Operational500 kg
Shipping1198 lb.
Shipping543.4 kg

Gearbox

Mower Deck Horsepower70 hp
Mower Deck Horsepower52.2 kW
Ratio1:2.1

Setup Time

Labor Hours0.5 hr

Tractor Requirements

PTO Horsepower30-70 hp
PTO Horsepower22.4-52.2 kW
PTO rpm540 rpm

Deck

Deck Thickness0.1644 in.
Deck Thickness4.176 mm
Deck Thickness8 gauge
Deck DischargeRear