Elisha Jack Crammond was sentenced to 11 years and eight months in jail for the August 2017 attack (file photo).

Two men who dished out a vigilante justice beating on a Waikato farm have been sent to jail.

"You inflicted violence as a means of teaching [your victim] not to be violent," Judge Kim Saunders said, as she sentenced the men in the Hamilton District Court on Tuesday.

"I hope you realise the absurdity and irony of what you did."

TOM LEE/STUFF Michael Sam Torrington was jailed for 11 years and three months for the attack on a Kerepehi farm (file photo).

Elisha Jack Cramond and Michael Sam Torrington rubbed cow dung and gravel in their victim's eyes during the assault - he lost sight in one eye.

A jury found the pair guilty of wounding with intent to cause grievous bodily harm, and Cramond was also found guilty of threatening to kill, and perverting the course of justice.

On Tuesday, he was sentenced to 11 years and eight months in jail, and Torrington to 11 years and three months. Each man has a 50 per cent non-parole period.

KAYCIE O'CONNOR/STUFF The pair heard their sentences in the Hamilton District Court on Tuesday (file photo).

A four-day trial heard the assault happened on a pitch-black night in August 2017.

The victim and his partner had been staying at the Kerepehi farm after their car had crashed and broken down nearby. They - but not the victim - had been drinking some time before things took a violent turn, following revelations of alleged domestic violence in the couple's history.

The assault began in the lounge of the house. The male victim then ran from the house and through the surrounding paddocks, but was chased down by Cramond in a car.

As the alleged victim himself told the court when giving evidence, "I was running for my life".

"The Mercedes came flying through the gate and into the paddock. It hit water and bottomed out. It got stuck."

The car became bogged down in some mud, however Cramond caught up with the man on a farm race where, joined by Torrington, the main assault allegedly occurred.

As Wrigley told the jury, the man had his head repeatedly kicked and stomped on. He was strangled, had his finger severely bitten by Torrington, and his genitals were stomped on.

Cramond had also told him "that I was a woman beater and I was going to get my come-uppance".

Reading out his victim impact statement at the sentencing of Cramond and Torrington, the man recalled how the pair were "stuffing rocks and cow s... into my mouth and rubbing it into my eyes".

"I've lost my right eye completely and vision is blurred in my left."

He was bitten and repeatedly punched and kicked, and his body, memory, hearing, and confidence were affected.

"Your will to kill me is my will to survive," he told his attackers through his statement.

"I've accepted where I've gone wrong. Can you?"

His partner said she considered Torrington a mate, but she was now scared of the dark and of trusting others.

Nothing stopped the attack, "not my cries of horror, my pleas - nothing".

It was vigilante action, Judge Saunders said.

The victim was attacked while on the ground, struggling to see, and slipping in and out of consciousness.

His head was targeted and he was left with bruising, including to his genital and anal areas.

The attack was said to be out of character for Cramond, and his defence counsel Ann-Marie Beveridge said his first prison sentence would be a lengthy one.

Torrington's lawyer, Martin Hine, said Torrington had helped the victims when their car broke down but got "embroiled in a rapidly deteriorating situation".