15HP 860mm Extra-Wide Cut Flail Mower

15HP 860mm Extra-Wide Cut Flail Mower

The SIVFORX S860L is the PRO-grade heavy-duty model in our walk-behind flail mower lineup. Powered by a 15HP gasoline engine with electric start, a massive 860 mm cutting width, 66 Y-shaped flail blades, and 10–80 mm adjustable cutting height, it delivers industrial-class mowing efficiency. The 3F+1R self-propelled gearbox drives 15×5.00-6 large rear tires paired with front swivel casters — combining raw power with nimble maneuverability.
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Description
Technical Parameters

Product Overview

 

The SIVFORX S860L is the PRO-grade heavy-duty model in our walk-behind flail mower lineup. Powered by a 15HP gasoline engine with electric start, a massive 860 mm cutting width, 66 Y-shaped flail blades, and 10–80 mm adjustable cutting height, it delivers industrial-class mowing efficiency. The 3F+1R self-propelled gearbox drives 15×5.00-6 large rear tires paired with front swivel casters - combining raw power with nimble maneuverability.


The 860 mm extra-wide cutting deck delivers nearly 30% more coverage per pass than 680 mm-class machines. Same working hours, significantly more area completed. The 15HP engine powers through light brush, thick weeds, and wet heavy grass without hesitation. Electric start means one-key ignition - no exhausting pull-starts on a big engine.


Where the S680L is ideal for small-to-medium daily maintenance, the S860L is the professional efficiency choice for large-scale commercial mowing, ranches, and municipal projects.


Founded in 2012, SIVFORX has shipped over 15,000 units to 30+ countries.


Key Highlights: 15HP Power | Electric Start | 860mm Extra-Wide Cut | 66 Flail Blades | 3F+1R Self-Propelled | PRO-Grade Efficiency

 

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Product Specifications

 

Item

Specification

Brand

SIVFORX (Since 2012)

Model

S860L

Engine

15 HP 4-Stroke Gasoline Engine

Start Method

Electric Start

Transmission

Belt Drive

Cutting Width

860 mm (approx. 34 in)

Blade Type

Y-Shaped Flail Blades

Blade Count

66 blades

Cutting Height

10 – 80 mm (adjustable)

Gearbox

3 Forward Gears + 1 Reverse Gear

Drive Type

Gearbox self-propelled

Drive Wheels

15×5.00-6 large-diameter deep-tread rear tires

Front Wheels

Swivel Casters

Fuel Type

Unleaded gasoline, 92 octane or higher

Fuel Consumption

Approx. 2.0–3.0 L/h

Working Efficiency

Approx. 2,000–3,500 m²/h (terrain and grass dependent)

Warranty

Engine: 1 year / Frame & Structure: 2 years

 

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Key Features

 

15HP Power - Brush, Thick Grass, Wet Grass - Dominated
With nearly double the output of the 9HP S680L, the 15HP engine maintains steady RPM through light brush, waist-high weeds, and rain-soaked thick grass. Sixty-six flail blades keep shredding without bogging down. For commercial operators processing large areas and varied vegetation daily, 15HP isn't a luxury - it's the productivity guarantee.
 

860mm Extra-Wide Cut - 30% More Coverage Than 680mm
An 86 cm cutting swath covers dramatically more ground per pass. Over a 6-hour workday, the S860L completes roughly 6,000 m² more than a 680 mm machine - the equivalent of a full soccer field. In large ranches, municipal green spaces, and commercial parks, this efficiency difference translates to fewer machines, less labor, and lower total cost.
 

Electric Start - One-Key 15HP Ignition
Pulling a recoil starter on a 15HP engine is punishing work. The S860L's standard electric start delivers one-key ignition - saving time, saving effort. Professional image and operator comfort combined.
 

66 Y-Shaped Flail Blades - Finer Mulch, Denser Blade Array
Nearly double the blade count of 38-blade models means denser blade coverage:
●Finer, more uniform mulching - clippings decompose faster
●Lower load per blade - less individual wear, longer overall blade life
●Superior cutting continuity - no missed strips, cleaner finish
 

3F+1R Self-Propelled Gearbox - Power Meets Control
Belt drive + 3 forward gears + 1 reverse gear. Low gear for thick brush and heavy-load conditions, high gear for rapid flat-ground progress, reverse for tight-space maneuvering. Self-propelled drive - the operator simply steers.
 

All-Terrain Wheels + Rugged Build
●15×5.00-6 large deep-tread rear tires - superior traction
●Front swivel casters - agile steering
●Full steel welded frame - impact and collision resistant
●Tool-free 10–80mm height adjustment

 

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S860L vs S680L - Model Comparison

 

Aspect

S860L (PRO Grade)

S680L (Standard Grade)

Engine

15 HP

9 HP

Start Method

Electric Start

Recoil Start

Cutting Width

860 mm

680 mm

Blade Count

66 blades

38 blades

Working Efficiency

2,000–3,500 m²/h

1,500–2,500 m²/h

Vegetation Capability

Brush, thick grass, wet grass

General weeds, maintained grass

Suitable Area

Large ranches, municipal, commercial parks

Small-medium orchards, gardens, farms

Positioning

Commercial High-Efficiency

Professional Practical

 

Flail vs. Rotary - Why Flail?

 

Aspect

Flail Mower (S860L)

Traditional Rotary Mower

Obstacles

Rocks & branches bounce off, blades undamaged

Blades easily damaged by hard objects

Clipping Quality

Finely mulched, evenly dispersed as fertilizer

Long clippings, require collection

Vegetation Types

Weeds, brush, thick grass, wet grass

Maintained lawns only

Safety

Stones not ejected at high speed

Stones may become dangerous projectiles

Blade Maintenance

Replace individual damaged blades

Replace entire blade

 

Applications

 

Large Ranches & Pastures
Thousand-acre pasture height control demands maximum-efficiency equipment. The S860L's 860 mm wide cut + 15HP power delivers dramatically more daily acreage than narrow-deck machines. Sixty-six flail blades produce fine, uniform clippings suitable as supplementary livestock feed.
 

Municipal Greening & Road Maintenance
Major city parks, highway green belts, industrial zones - vast areas with diverse vegetation conditions. The S860L's electric start + high power + wide cut combination lets municipal crews cover larger areas with fewer machines.
 

Commercial Landscaping Contractors
For landscaping companies servicing multiple clients, equipment efficiency directly determines profit margins. The S860L's PRO-grade configuration maximizes daily output per machine, reducing both equipment count and labor requirements.
 

Large-Scale Orchards
Inter-row weed control on orchards exceeding 75 acres - the S860L covers vast areas with industrial efficiency. The flail system is unfazed by branches and stones on the orchard floor.
 

Biomass Forage Harvesting
Scenarios requiring weeds or grass to be shredded for biomass feedstock or silage. The S860L's 66-blade dense array ensures fine, uniform mulching that meets downstream processing requirements.

 

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Customization Services

 

Customization Item

Available Options

Brand / Logo

OEM decals & nameplate

Machine Color

Standard orange & white / Custom color

Engine Brand

Optional Loncin / Honda / Briggs & Stratton

Blade Type

Y-shaped flail / Hammer flail

Additional Features

Hour meter, LED work light, grass catcher adapter

Packing Customization

Steel frame / Carton / Custom shipping marks

Multi-Language

Manuals & decals in multiple languages

 

Customer Success Stories

 

Case 1: Commercial Landscaping Contractor - Vietnam
Customer: Commercial landscaping service company, Vietnam
Quantity: 8 × S860L
Application: Mowing services for industrial parks, resorts, and golf courses
Client Feedback: "As a commercial contractor, equipment efficiency is profit. The S860L's 860 mm wide cut dramatically increased daily coverage per machine - jobs that used to require 2 narrow-deck mowers now take just 1 S860L. The 15HP engine performs brilliantly in golf course rough areas. Sixty-six blades produce fine, uniform clippings - our clients are very happy with the finished appearance."

 

Why Choose the SIVFORX S860L?

 

PRO-Grade Power:
1. 15HP dominates brush and thick grass - 1.5× the efficiency of 9HP models.
860mm Extra-Wide Cut:
2. 30% more coverage per pass than 680mm. Fewer passes, more acres.
Electric Start:
3. One-key 15HP ignition - effortless, professional.
66-Blade Dense Array:
4. Finer mulch, more durable blade coverage.
Flail - Debris-Proof:
5. Rocks, branches - no fear. Low maintenance cost.
Mulch-in-Place:
6. Uniformly shredded clippings decompose naturally - eco-friendly and cost-saving.

Get in Touch
For pricing, live demo videos, or to schedule a factory visit, contact us today.
SIVFORX S860L - Wide-Cut Dominance. Efficiency Rules.

 

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