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Tornado 9121 W

Petrol tractor
Powerful 635 cc lawn tractor with an extra-wide 121cm triple-blade cutter-deck. It can be set-up to either mulch or side-discharge grass clippings and is equipped with a high-torque STIGA ST 650 Twin engine. Suitable for thick grass in lawns up to 8500 m2. Mulching kit, trailer hitch and battery charger sold separately.
  • Strong and efficient STIGA ST 650 twin-cylinder engine.
  • 121 cm reinforced cutting deck with 6 anti-scalp wheels.
  • Smart 5.5" widescreen display with all operating information and Best Cutting Zone.
  • Powerful LED headlights and robust front bumper.
  • The soft-grip steering wheel and seat with armrests adds extra comfort.
  • Cruise control ensures a stress-free mow.
Tax Included

Product details and specs

Tornado 9121 W detail 4
Tornado 9121 W detail 5
Tornado 9121 W detail 6
Tornado 9121 W detail 7
The cutting-edge STIGA Tornado 9121 W is an impressive lawn-maintenance workhorse designed to make the coverage of expansive grassed areas fast and hassle-free!

Primary amongst numerous premium features is its STIGA ST 650 engine; a high-performance 635 cc power-pack, which, thanks to its Twin, overhead-valve design, offers smooth, low-vibration operation, increased torque-output and superior fuel-efficiency.

A two-stage air-filter combines with full-pressure lubrication to minimize component wear and maximize engine life; while a very large-capacity petrol tank (15 litres) - accessed via a handy external filler-cap - lessens downtime by reducing the number and frequency of refueling stops.

Tornado 9121 W is capable of handling the sort of challenging terrain that would defeat a lower-specification model.

It benefits from a smart 5.5" widescreen display that provides clear, easy-to-read information on engine RPM, battery charge, oil level and fuel level, combined with Best Cutting Zone function to improve cutting performance; and it comes with a widest-in-class 121cm three-blade cutter-deck that ensures an excellent large-area work rate. STIGA Best Cutting-Zone function will always let the operator know when they're achieving the best cutting-performance, thanks to green-light indicator, whatever the terrain and grass-type.


The Tornado 9121 W has a pedal-operated hydrostatic transmission; an attractive attribute that gives infinitely variable control of the ground-speed (forward and reverse), which in turn optimizes maneuverability and makes it much easier to mow and tow around obstacles.

A cruise-control function means you can lock the forward-speed and give your foot and ankle a rest when required; while LED headlights provide essential illumination should you need to work on into the evening.

The two-in-one Tornado 9121 W is an adaptable tractor that can either side-discharge or mulch clippings, with the former perfect when mowing informal outlying areas and overgrown meadow-grass; and the latter coming into its own on regularly mown formal lawns.

Excelling in terms of comfort and convenience, the Tornado 9121 W has an armrest-equipped seat, a raised soft-grip steering wheel, a cup holder and a storage compartment.

Other stand-out features include deck-mounted gauge wheels that prevent scalping when turning on inclines; a washing link for straightforward under-deck cleaning; and a cast-iron front axle that confers rugged durability.
Mulching kit, trailer hitch and battery charger sold separately.

Our most powerful and featured products, with customised performance thanks to the many functions and accessories: you don’t need to be a professional, these products make you an Expert.

  • Durable tools
  • Superior power output
  • For really intense working environment
  • Customisable performance
  • Most responsive control

What kind of gardener are you?

Discover our product range and find the right product to suit your gardening style!
Essential
Developed for all gardening newbies or those gardeners who want to act quick and achieve a certain garden quality.
  • Lightweight tools
  • Easy to start, adjust, use, clean and store
  • Simple and intuitive functions
Experience
A step up for you to work in larger garden environments or be engaged in multiple tasks and for longer sessions.
  • Robust tools
  • Tougher jobs
  • Prolonged sessions
  • Diversified works
Expert
Our most powerful and featured products, with customised performance thanks to the many functions and accessories: you don’t need to be a professional, these products make you an Expert.
  • Durable tools
  • Superior power output
  • For really intense working environment
  • Customisable performance
  • Most responsive control

Features

Wildly grown grass?
Side-discharge is a traditional mowing method that’s ideal for grass which has become so tall, it’s impractical to collect. Cut grass is ejected with speed and efficiency through a robust, impact-resistant exit chute and will then accumulate in tidy rows.
Smart mowing.
The smart 5.5" widescreen colour-display provides all essential information regarding tractor-status and is easy to read under any light conditions. The new Best Cutting Zone feature ensures superb cutting performance, by improving the relationship between forward-speed and drive-speed.
Face any challenge.
Sizeable 20” rear-wheels means, the Tornado will power its way up slopes and across rough, muddy ground without skidding or slipping. They will also prevent turf damage on more delicate surfaces; and provide a smooth run across adverse terrain.
Comfortable driving.
Thanks to a STIGA Premium soft-grip steering wheel, an ergonomic Comfort Plus seat with armrests and the cruise control function, you’ll enjoy the superior driver comfort that’s essential for anyone regularly managing time-consuming mowing jobs. A roomy storage compartment and a handy 12 V socket are also featured.
Great visibility of the working area.
LED headlights provide essential illumination in low-light conditions.

Technology

Technical specs

General info
Lineup
Tornado
SKU
2T1945481/ST2
Level
Expert
EAN/UPC
8008984860483
Series
Series 9
Power
Power source
Petrol
Battery capacity
18 Ah
Power
12.3 kW
Engine Brand
STIGA
Engine model
ST 650 Twin Powered by STIGA
Displacement
635 cm³
Engine rotation speed
2800 rpm
Battery Voltage
12 V
Choke
Manual
Engine cooling
Air
Fuel tank capacity
15 l
Maximum working area
8500 ㎡
Cutting system
Minimum uncut radius
111 cm
Cutting method
Side discharge
Cutting width
121 cm
Reverse mowing
Yes
Blade rotation
Untimed
Cutting height adjustment
Manual with lever
Cutting height positions
7 positions
Cutting height range
30 - 90 mm
Number of blades
3
Additional cutting method
Multiclip mulching
Blade engagement type
Electric
Drive system
Traction
Rear-wheel drive
Transmission
Transmission method
Pedal-operated
Transmission type
Hydrostatic
Equipment
Steering wheel
STIGA premium with soft grip
Seat type
STIGA comfort plus with armrests
Seat adjustment
Single lever
Dashboard
Yes with smart widescreen display
Front wheel size
16x6.00-8
Rear wheel size
20x10.00-10
Hour meter
Yes - on display
Headlights
LED – Advanced
Cruise control
Yes
Cast iron front axle
Yes
Bumper
Yes
Washing link
Yes
Storage compartment
Yes
Cup holder
Yes
Pivoting front axle
Yes
Antiscalp wheels
6
Safety system
Seat with Safety Contact Breaker
Tools kit
Mulching kit
Optional
Battery charger
Optional
Trailer hitch kit
Optional
Vibration and noise data
Guaranteed sound power level (LwA) - dB(A)
105
Max vibration on driver's seat (m/s2)
0.5
Max vibration on steering wheels (m/s2)
2.8
Measured sound power level dB(A)
105
Measured sound pressure level at operator ear dB(A)
89
Overall dimensions
Pack weight
323 kg
Product length
1860 mm
Product width
1520 mm
Product height
1095 mm
Product weight
250 kg

Support

What is the proper way to clean the lawn tractor after mowing the grass?
The exterior of the tractor mower must be cleaned with water and detergent, paying attention not to get water in the electrical system, motor and circuit board located under the instrument panel. The collection bag should be emptied and cleaned of residue, then remounted so the cutting assembly can be washed, and then removed, rinsed and allowed to dry. When washing the cutting device assembly and the expulsion chute, the collection bag or rear discharge shield must be fitted, the operator must be seated, the cutting device assembly must be in position “1”, the engine running, transmission placed in neutral and the cutting device must be connected. Then connect a water hose to the appropriate pipe fittings and allow the water to flow for a few minutes while keeping the cutting devices in motion.
What action should be carried out before winter storage or before storing it for a period longer than 30 days?
After allowing the engine to cool down and fully recharging the battery, disconnect the battery cables and store it in a cool and dry place. Empty the fuel tank, clean the machine thoroughly, check the condition of the cutting device assembly, and, if necessary, contact the service centre. Then store the lawn tractor with the cutting deck in a lowered position, in a sheltered environment and, if possible, covered with a sheet.
What action should be carried out before initially using a riding tractor that has been stored over a winter or for a period longer than 30 days?
Refuel it and check the oil level, air filter and petrol filter. Check that the tyres are correctly pressurised and then set up the lawn mower tractor according to how you intend to carry out the mowing (side discharge, collection, rear discharge, mulching). For further information about the preliminary operations and safety checks, please refer to the designated sections of the instructions manual.
What standard maintenance operations does the lawn mower tractor need?
Before each use, we recommend that you perform safety and control checks, check the tyre pressure, and replenish the fuel and oil tank, if necessary. After each use, arrange for a general cleaning of the riding tractor. Please refer to the designated section of the instruction manual (“maintenance table”) for the regular actions recommended to ensure optimal use of the machine.
What are the cutting functions of the lawn tractor?
The riding tractor can be set up in different cutting modes: rear bag collection or rear discharge, or mowing and chopping the grass using the special “mulching kit” function. The mulching cutting system allows you to mow the grass into fine particles, which remain on the lawn, restore nutrients and support growth.
What kinds of parts and accessories can the riding tractor be equipped with?
The tractor mower can be equipped with various parts and accessories to increase its functions and ensure maximum versatility all year round. For the complete list of parts and accessories, please refer to the relevant product page on the website.
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