FM-78 / FM-78H Flail Mower Hammer Blade Complete Set, Inc-(22) H-Blades, M14x70 Bolts, Nuts) (2015 -Current)
NSK is a leading bearing and motion control manufacturing company founded in Tokyo, Japan in 1916. Today NSK has several plants around the world including England, Germany, USA and Switzerland and by far one the best quality bearings available on the market today. Although these bearings are very costly, we feel that in an application with high load and dynamic forces such as a flail mower that such high quality bearings are required. These bearings are noticeably smoother, quieter, and cooler running than any competitor and far superior to any no-name brand. Some inferior bearings contain plastic interior ball cages that are susceptible too breakage from shock loads. Poor material and tolerances generate excessive heat that translates into premature bearing failure and even belt wear as the heat travel to the pulleys and the belts. All bearings are not created equal, and this is a feature that should not be overlooked when shopping for a flail mower.
710 LBS. (mower weight only) PTO shaft weighs an additional 39 lbs.
30-65 PTO horse power
3/4″ – 3-3/4″ Adjustable to meet various height requirements
4 Gauge .25″ structural Q235 roll formed steel for durability.
1/4″ .250″ Structural Q235 roll formed steel for durability.
Hammer or reversible Y-blades. Our hammer blades are 40cr, alloy structural steel. (American standard, AISI/SAE/ASTM steel no: 5140) and forged to a tapered wedge shape to avoid material buildup on the blades. Each blade weighs 1.85 lb. (cast steel is much more durable than cast iron) competitors use flat face blades. Side by side comparison of WoodMaxx exclusive hammer blade design: The reversible Y-blades are made from .33″ 60si2mn, spring steel, (American standard: A29m) formed, heat treated, and quenched in oil and weigh 1.75 lb. each. Use the hammer blades for clearing saplings (1″ diameter or less), and the Y-blades for grasses.
22 Hammer or 44 Y- blades w/ 22 ctr blades between the Y (WoodMaxx exclusive)
The blades are staggered precisely with no gap in the mowing area. Blade overlap is important to achieve an even cutting result.
This allows for easy inspection, cleaning, blade changing, and maintenance of your machine. The rear gate can also be left open for easier discharge in heavy conditions, or you can close the gate to greater mulching.
The rotor spins in the opposite direction as the wheels of the tractor when traveling forward. This allows the blades to shear the material as it is folded forward by the mowers. The material is then thrown up and over the rotor.
4.25″- Heavy duty 5/16″ wall tubing for long life.
The rotor tube is balance to reduce vibration and ensures that the mower runs smooth, and reduces wear on the bearings.
The V-belt pulleys are heavy duty cast iron and balance to eliminate vibration, and run smooth.
Large swing so that the blades build required inertia.
128 ft./sec – High tip speed = efficiency to cleanly cut material
Category 1 standard 3 point or category 1 quick hitch – will attach to any cat 1- 3 point hitch and will also work with cat 1 quick hitch (except John Deere I-Match)
This feature allows for offset from center to the right of the tractor. This feature is helpful for mowing around fences, buildings; walkways etc. From the center of the PTO the mower extends 46″ to the right and 33″ to the left.
Three Total B-Series USA gates “truflex” – we use only USA made gates belts on our flail mowers for long life. (easy to find SAE standard belt size BX39)
Solid state automatic – this feature automatically adjust the belt tension so you don’t have to worry about slippage or overworking the belts. This feature greatly increases the belt life.
Up to 55 hp. Heavy duty proven oil bath gearbox for long life.
Cast iron 540 RPM with internal over-running clutch – when the PTO shaft is disengaged the built in over running clutch allows the PTO shaft to stop turning while the gearbox and rotor shaft slow down gradually. This is an important feature, without it, the gearbox will slam to a halt when the PTO is disengaged, causing stress to the gearbox and your tractor. This feature should not be overlooked when shopping for a mower.
The skid shoes reduce gouging are bolt on so you can adjust or replace them easily when the time comes.
1-3/8″ 6 spline w/slip clutch.
Accessible greasable bearings for easy maintenance.
5.25″ With tapered ends – this roller contacts the ground to ensure even cutting height. The ends of this roller are rounded to eliminate gouging when turning corners. A scraper bar ensures that mud and debris buildup is cleaned off as you go.
The rust resistant baked on powder coat finish is more durable than conventional paint to keep your machine looking good for years.
A robust machine with an equally robust warranty.
At WoodMaxx our service department is staffed with professional certified technicians that inspect each machine before it is shipped. This ensures that you get a trouble free machine from the get go. When you need technical help or parts, our courteous staff can help you get what you need from our fully stocked warehouse.
California Residents See Prop 65 WARNINGS
I am proud to say, I own and still use my FM-74 Woodmax flail mower. It was renamed the FM-78 in later years. I have hundreds of hours cutting use on it. Still running strong. It aquired a leak at the main gearbox shaft seal about a year ago. Just keep it filled with oil and grease all the bearings before use each.
Thanks for the mower! It works great! Had a few bolts come loose and lost but replaced all good 👍🏼 Good quality mower!
Just received my mower. It was really easy to assemble. Looks to be very well made. I got the hammers. Due to the brush cutting that i normally do. I cut my overgrown field today and was impressed with the cut quality. Looks like i cut it with a lawn mower.
The FM 78 is a quality machine through out. Heavy duty construction. It handled a field that I had let get to the hood of the tractor with ease. I am very well pleased.
A few weeks ago I took delivery of the FM-78 Flail mower and I can honestly say that I LOVE THIS THING!!! I was concerned about Chinese quality but Woodmaxx definitely got those guys producing a quality product. I do wish it was made in America so we kept the jobs here but it is what it is. But yeah, this machine really gets it done and it’s a pleasure to use. Mind you, I own a Ferrari and I’m uncertain which is more fun to use/drive! My orchard looks like a manicured park and now all the vines and old plants coming out of my vegetable garden can be dumped in the orchard rows and almost instantly converted to mulch. I love my Woodmaxx flail mower, great product, amazing price, you guys rock!