Rears Manufacturing

Heavy Duty Mowers, Shredders, and Choppers

SPF Flail Mower

The Rears SPF mower is a versatile flail machine ideal for maintaining driveways, paths, blackberries, and vineyard rows, especially for those with limited horsepower. The SPF comes in a multitude of configurations to meet your orchard / personal needs. Different blade types, belt housing orientations, widths, and mounting configurations are all available to fit your specific needs. These SPFs are available with a fixed offset (Available Offset is Dependent on Cutting Width) as well as with a hydraulic / manual offset.

Lopro SPF Upright SPF Vineyard SPF Upright Hydraulic Pantograph Offset SPF

Blade Options

FL920

The FL920 is Specifically Designed for Delivering a Groomed Finish. These blades are mounted on 6-Assemblies per Foot.

FL960

The FL960 is a Blade that Mows Well and is More Durable then The FL920. The FL960 Shreds more efficiently, Allowing you to drive Faster and Take less Horsepower in Applications where the Finish is Not Paramount.

FL946

Standard on our field choppers, the crop-chop knife is rolled to shape from C1050 alloy steel and heat treated for long edge life. Both the FL940 and 946 are reversible- the FL946 is a hard surfaced knife.

Rake Package

SPF Rake Package

Floating brush rakes assist with feeding material into rotor swing line for better shred quality and coverage. Rake height is adjustable using simple bolt and stop mechanism. The SPF rake package is not compatible with the Low-profile belt housing configuration

Rotor Bearings

SP5150

The 1-1/2" self-aligning ball bearings are a testament to enduring engineering, remaining unchanged on the SPF since 1995. These heavy-duty rotor bearings are designed to withstand tough shredding conditions, combining with our anti-wrap system to ensure exceptional longevity and durability.

Our commitment to quality means you can rely on these bearings for consistent performance and reliability, even in the most demanding environments.

Roller Bearings

SP298

The Rears triple-sealed roller bearing is designed with anti-wrap protection, ensuring reliable performance and longevity. The pilot ring on the bearing housing is precisely mounted into a machined slot in the roller pivot plate. This piloted steel joint, rather than the bearing mount bolts, bears the weight of the flail, providing exceptional stability and durability. Adjusting your machine's cut height is straightforward. Simply rotate the pivot plate to achieve the desired position.

Belt Housing Configurations

Upright

The upright belt housing is the standard for the SPF. Upright belt housings meausure 29-3/4". The upright belt housing is perfect for applications where overall flail height is not an issue (i.e. pasture mowing, offset flail mowing)

Low Profile

The low profile belt housing rocks the belt housing backwards and down to help avoid flail interference with fruit / canopy. The low-profile belt housing measures Low Profile: 21". The low profile belt housing is used commonly in vineyard & orchard applications.

Vineyard Profile

The vineyard profile belt housing rocks the belt housing forward and down to help avoid flail interference with fruit / canopy and to assist with driveline angle issues that arise from low PTO heights in small orchard tractors. The vineyard profile belt housing measures 26-1/4". The vineyard housing is used commonly in vineyard & orchard applications.

Hydraulic Offset (Roadside) Option

Hydraulic Offset Option

Hydraulic pantograph option (0-18") available for a variety of widths. Hydraulic offset is available for Low-Profile, Upright, and Vineyard configurations. Hydraulic offset is not compatible with certain narrow widths as drivetrain angles become prohibitive.

Forward and Reverse Rotation

Standard rotor rotation is opposite the direction of the tractor tire. This rotation may be reversed for Roadside Applications where Material Discharge is Hazardous.

Angle Shearbar Option

Angle Shearbar

Angle shearbar installation can be requested on new units to provide superior shred quality.

Shredder Package

Gauge Wheel Options

Fixed Gauge Wheels

Tie tube style gauge wheels with bolt unbolt pivot for cut height adjustment. If turning without picking up the machine is a requirement, then castering gauge wheels will be required.

Vineyard SPF, Tie Tube Style Gauge Wheels Gauge Wheel SPF with Rakes

Castering Gauge Wheel Option

Castering gauge wheels mounted on boot & axle style toolbar are available when lifting machine prior to turning is not an option. Cut height adjustment is performed by bolting toolbar to different bolt-holes on machine's boot plates.

Vineyard SPF,Castering Gauge Wheels

Upright SPF Specifications

Specification
Cutting Width 24" - 100"
Overall Width 12" Over Cutting Width
3-PT Category I or II Free-Link *Customer Specify*

Cat. I & II Standard on Swath 72" and Up

Quick Hitch Compatibility on Request
Horsepower Requirement 5-6 Horsepower/ft
Depending on Loading Scenarios (Ground Speed / Terrain / Biomass)
FL920 / FL960 FL946
Rotor Mandrel 1-1/2" Shaft

Mandrel:

72" and Below: 4"

84"-95": 5"

96"-100": 6" 		1-1/2" Shaft
Mandrel:
6" (Pad Rotor)
Mandrel Speed 2,400 RPM
Blade Tip Speed 72" and Below: 4" Mandrel / 11,300 FPM

84"- 95": 5" Mandrel / 12,250 FPM

96"-100": 6" Mandrel / 11,500 FPM		 All Sizes: 6" Mandrel / 11,500 FPM
Weight, STD. Unit (Opt. Dependent) 24": 500lbs
48": 625lbs
72": 755lbs
100": 1,050lbs
23"-84" Swath 85"-100" Swath
Belt Housing Height 30-7/8" 33-1/8"
Flail Housing Height 20-3/4" 21-3/4"
Blades FL920
FL960
FL946
FL920
FL960
Gauge Roller 1-7/6" Shaft, 6-5/8"Ø Roller
Cut Height 0" (Scalping) - 6"

Vineyard SPF Specifications

Specification
Cutting Width 24" - 100"
Overall Width 12" Over Cutting Width
3-PT Category I or II Free-Link *Customer Specify*

Cat. I & II Standard on Swath 72" and Upand Up

Quick Hitch Compatibility on Request
Horsepower Requirement 5-6 Horsepower/ft
Depending on Loading Scenarios (Ground Speed / Terrain / Biomass)
FL920 / FL960 FL946
Rotor Mandrel 1-1/2" Shaft

Mandrel:

72" and Below: 4"

84"-95": 5"

96"-100": 6" 		1-1/2" Shaft
Mandrel:
6" (Pad Rotor)
Mandrel Speed 2,400 RPM
Blade Tip Speed 72" and Below: 4" Mandrel / 11,300 FPM

84"- 95": 5" Mandrel / 12,250 FPM

96"-100": 6" Mandrel / 11,500 FPM		 All Sizes: 6" Mandrel / 11,500 FPM
Weight, STD. Unit (Opt. Dependent) 24": 500lbs
48": 625lbs
72": 755lbs
100": 1,050lbs
23"-84" Swath 85"-100" Swath
Belt Housing Height 23-1/4" 25-1/2"
Flail Housing Height 20-3/4" 23"
Blades FL920
FL960
FL946
FL920
FL960
Gauge Roller 1-7/6" Shaft, 6-5/8"Ø Roller
Cut Height 0" (Scalping) - 6"

Low Profile SPF Specifications

Specification
Cutting Width 24" - 100"
Overall Width 12" Over Cutting Width
3-PT Category I or II Free-Link *Customer Specify*

Cat. I & II Standard on Swath 72" and Upand Up

Quick Hitch Compatibility on Request
Horsepower Requirement 5-6 Horsepower/ft
Depending on Loading Scenarios (Ground Speed / Terrain / Biomass)
FL920 / FL960 FL946
Rotor Mandrel 1-1/2" Shaft

Mandrel:

72" and Below: 4"

84"-95": 5"

96"-100": 6" 		1-1/2" Shaft
Mandrel:
6" (Pad Rotor)
Mandrel Speed 2,400 RPM
Blade Tip Speed 72" and Below: 4" Mandrel / 11,300 FPM

84"- 95": 5" Mandrel / 12,250 FPM

96"-100": 6" Mandrel / 11,500 FPM		 All Sizes: 6" Mandrel / 11,500 FPM
Weight, STD. Unit (Opt. Dependent) 24": 500lbs
48": 625lbs
72": 755lbs
100": 1,050lbs
23"-84" Swath 85"-100" Swath
Belt Housing Height 25-7/8" 24-3/4"
Flail Housing Height 20-3/4" 21-3/4"
Blades FL920
FL960
FL946
FL920
FL960
Gauge Roller 1-7/6" Shaft, 6-5/8"Ø Roller
Cut Height 0" (Scalping) - 6"