Tanto was a small robot that was selected as a reserve for Series 7 of Robot Wars. Under loan to Team Immersion, Tanto did not qualify for the main Series 8, but it was chosen to compete at the pilot episode, where the team were known as 'Team Tanto'. However, upon their arrival, the arena was deemed unsafe for spinning weapons, and Tanto fought in the first round without the use of its weapon. Dara Ó Briain remarked that he particularly liked Tanto at the event.

The name Tanto is derived from Japanese tantō blades, which are short and compact like the robot Tanto itself.



Tanto at the Series 7 qualifiers.

At the time of Series 7, Tanto was a grey box-wedge with some ramming prongs and a disc for a weapon. It weighed 89kg, and could reach top speeds of 22mph. The grinding disc was added on because of the rule for Series 7 that all heavyweight competitors must have a moving weapon. The robot was actually built in Spain.

Photo 02-03-2016 14 01 42

Tanto under Team Immersion

In 2016, Tanto was rebuilt to house a 300mm diameter, 25mm thick single toothed HARDOX disc. It maintained its invertible two-wheeled design, though featured longer wedges previously seen on versions of Tanto that competed outside of Robot Wars to lead robots into its disc.


Tanto defeated Piranha in its qualifier battle for Series 7. Usually, winning a qualifer would grant a robot automatic entry to the series, but Tanto was merely considered a reserve, and went unused. The team also failed to qualify that year with TX-108, which had previously failed to qualify for Series 5 and 6.

Tanto's qualification circumstances for Series 8 are unclear, but it is known that the robot was selected to compete in the pilot recording.

Under the ownership of Team Nebula, a spin-off from Team Immersion who entered the robot into the pilot, Tanto attempted to enter Series 9 under the new name of Neutron, but it was not selected to compete.

Team HistoryEdit

Tanto was originally built by Team Danby, one of the oldest running teams in the UK. They first competed in the Featherweight Championship of Series 2, fighting with a robot called Deadline, and have built several robots since then, including TX-108 which has competed in Roaming Robots 2006 alongside Tanto. Despite this, the team had very limited coverage on Robot Wars prior to the reboot, with Anto and Gi-Ant-O being their only two robots to appear in the original series.

For Series 8, Tanto was entered by Team Immersion, a young team of roboteers with experience on the live circuit with different weight classes and formed in January 2016. Initially fighting individually, the team have built several notable robots between them. The team's most successful robots are Adam Hamilton's featherweight, 'Amnesia', which finished fourth and third in the 2016 and 2017 Featherweight International Championships, and Craig Croucher's 'Mr Snappy', which won the UK Beetleweight Championship Annihilator in 2015. They have also owned several other notable robots, such as Bulldog Breed, S.M.I.D.S.Y. and The Grim Reaper.

Tanto was sold to the newly formed Team Nebula after the Robot Wars pilot episode was filmed, who rebranded the robot as Neutron.

Team Immersion, with a new lineup under captain Adam, qualified for Series 10 with Vulture, while Jack from the Series 8 Tanto team joined Apex for the same series.

Robot HistoryEdit

Series 8Edit

Although Tanto was selected to compete at the untelevised pilot episode, an event used to test the camera equipment, the arena was unfinished upon Tanto's arrival, meaning Tanto was unable to use its spinning disc weapon for safety reasons.

Tanto fought Basher, Turbulence, and Ka-Pow! in the first round. Tanto was defeated when it drove over the top of Ka-Pow!, causing the small robot to somersault in the air, and lose its safety link upon landing. Tanto was immobile because of this, and Basher attempted to push it into the pit, but fell down with Tanto, and both robots were eliminated from the competition.


Series 8
Series 8 - Pilot Episode
Round 1
Pilot Episode, Group Battle vs. Basher, Ka-Pow!, Turbulence Eliminated

Series RecordEdit


Tanto without its shell at the Series 7 qualifiers

Main Series Tanto Series Record
The First Wars Did not enter
The Second Wars Featherweight Championship with Deadline
The Third Wars Super Heavyweight Championship with Toxin (event cancelled)
The Fourth Wars Failed to qualify with Vindicare
The Fifth Wars Failed to qualify with TX-108
The Sixth Wars Failed to qualify with TX-108
The Seventh Wars Unused reserve
Featherweight Championship with Gi-Ant-O
Failed to qualify with TX-108
Series 8 Pilot, Round 1 (Team Tanto)
Entered with Foxic (Team Danby)
Not selected with Apex (Team Danby)
Series 9 Not selected as Neutron
Entered with Foxic (Team Danby)
Entered with Apex (Team Terrafonics)
Series 10 Entered with Apex
Not selected with Foxic
Robot Wars Extreme Appearances
Series 1 Entered with TX-108 (unaired)
Entered with Anto
Series 2 Entered with Gi-Ant-O
  • NOTE: Craig Danby also competed in Battle of the Stars as the mentor of The Cat.

Outside Robot WarsEdit

In 2014, Tanto fought at the STEM Tech Olympiad event in Miami, Florida, where it was destroyed by the highly successful Brazilian competitor Touro Maximus. Tanto was repaired but lost to Polar Vortex by knock out.

Robot Wars Live EventsEdit

Tanto Newport

Tanto version 6 before the Newport live event

Tanto version 6 made its debut in the new Robot Wars Live Events at Guildford. It only fought once in the heats where it was beaten in its battle against Ripper, Cherub and Thor. In the Robot Wars 2013 UK Championship at Newport, it finished second in its heat against Ripper and Iron-Awe 7 allowing it to receive a second chance to progress through the loser's melee. However, it was immobilised on one wheel during the melee, and did not progress. Tanto also took part in the Robot Wars Winter Tour 2013 at the end of the year. It fought in the secondary heat stages against Dystopia and DTK, but was immobilised in the corner and eliminated.

Tanto made its last appearance at a live event under the ownership of Team Danby in 2015, at the Robot Wars World Championships held in Colchester. Tanto fought Iron-Awe 5, Tiberius and Thor, but was thrown out of the arena by Iron-Awe 5.

Versions of TantoEdit

  • Tanto version 6 in its alternative colour scheme
  • Tanto version 6 prior to its Robot Wars live events debut in Guildford
  • Tanto XP, the teams featherweight version of Tanto that was never finished.
  • Tanto version 2
  • Tanto version 3
  • Tanto version 3 with TX-108 and Pinser on display.
  • Tanto version 4
  • Tanto version 5

All versions of Tanto have been compact, fast and invertible, with a two-wheel drive system. Each version of Tanto has been around 65cm long, 50cm wide and 25cm tall.

Under Team DanbyEdit

Version 1 of Tanto was originally a weaponless robot, but was armed with a spinning disc mounted on the front wedge so that it could try to qualify for Series 7 (see Design and Qualification).

Version 2 had a lower box wedge-shaped chassis, and was painted grey with black stripes. Its wheels were mounted inside the chassis.

Version 3 had a box-shaped chassis with two large prongs replacing the front wedge, as well as thin wheelguards. This version of Tanto displayed the huge pushing power shared among all versions through using two 11kw motors, giving it a power-to-weight ratio of 30hp per 100kg or 300hp per tonne. At a event in Magna in 2005, Tanto pushed five opponents simultaneously at one point. It also reached the finals of the Roaming Robots 2005 Winter Tour where it lost in the first round to Behemoth.

Version 4 featured prongs similar to those of the previous version but lacked the wheel guards, giving it a resemblance to earlier versions of Craig Danby's antweight, Anto.

Version 5 featured a largely identical shape and weapon to Version 4, again with exposed wheels. This version never competed after it lost a wheel when it clipped a curb during a test drive.

Version 6 of Tanto was built in 2013, featuring a low wedge-shaped profile with two wedge-like forks. The new design maintains the tradition of Tanto being compact for a heavyweight, weighing in at 92kg and being just 65cm long, 50cm wide and 25cm tall. It also sported a new Union Jack-style livery, which was inspired by a robot design uploaded onto the Official Robot Wars Facebook page. Craig Danby has revealed that this version can reach speeds of between 25-30mph. Tanto later received a new top design consisting of the Danby family crest by the forks, the robot's name on its top/back panel and a "lucky" number, 23, added to the side of its forks, close to the wheels.

Under Team ImmersionEdit

The seventh and final version of Tanto (see Design) was the first version since Version 1 to feature an active weapon, with Team Immersion redesigning it to feature a 25mm HARDOX vertical single-toothed disc. Craig Danby and Team Immersion worked together to build this version in time for the pilot episode of Series 8, filmed in 2016. After the pilot, Tanto was sold to Team Nebula (consisting of Craig Croucher and Jack Tweedy) and subsequently renamed Neutron.