Constructicon Maximus
- Constructicon Maximus is a Decepticon in the Energon portion of the Unicron Trilogy continuity family.

Constructicon Maximus is one of four ancient Combiner robots chosen to guard the Super Energon pools deep within Cybertron. He and his peers were awakened from countless years of stasis by Megatron when Superion Maximus's brother is destroyed by the Decepticon leader.
He and his friend Bruticus Maximus are quite willing to abandon their duty to follow a strong leader whom they believe represent Cybertron's future, a Decepticon-dominated future.
Japanese name: Buildron
Fiction
Animated continuity
Energon
- Voice actor: Trevor Devall (English), ? (Japanese)
When Megatron destroys Superion Maximus's brother, he unlocks the living seal on the Super Energon pool and awakens the remaining Combiners. While Superion Maximus is aghast at his brother's destruction, the Decepticon combiners are merely curious about who managed to reactivate them. Megatron declared that the Super Energon was his and that he was master of all Decepticons. Ambition
Superion Maximus protested that the Super Energon belonged to all Transformers as Megatron jumped into the pool, changing into Galvatron once again. When the Autobot combiner tries to attack reborn Decepticon leader to no avail, Galvatron orders the two Decepticon combiners to give chase as Superion Maximus flees. Later, Superion confronts the two Decepticons, saying that they've been protecting the Super Energon for millions of years now, so why do they let one transformer have control of it all. Bruticus Maximus and Sontructicon Maximus merely reply that Galvatron is their master now, and that he represents the future of Cybertron. Galvatron
Toys
Energon
- The Japanese release of Constructicon Maximus, named Buildron, was a Toys R Us Japan exclusive.


