Senior constable Nathan Black, 29, and constable Timothy John Trautsch, 31, unleashed the attack on a 48-year-old woman in Sydney's west in January 2023 after being called for a welfare check.
The woman - who was experiencing a psychotic episode - was pushed to the road, repeatedly kicked in the head, dragged along by her hair, and punched during the 18-minute assault.
At one stage, the two officers struggled to handcuff her on the ground as she lashed out with her arms.
The woman was pepper-sprayed multiple times, including in the face and once on her back which was grazed after falling onto the road. Pepper spray also got onto her genitals, causing her great pain.
Black and Trautsch, who have been sacked from the force, were in August sentenced to more than five years behind bars each by Judge Graham Turnbull.
"These two offenders were gratuitously cruel … they lost, initially their professionalism and decency, and then their composure and control," he found.
"They embarked upon the assault in an emotionally heightened state of anger, frustration, and indeed malice so that they expended two canisters of the OC spray with deliberation."
The former officers have lodged an appeal against their sentences in the NSW Court of Criminal Appeal, claiming the jail terms are manifestly excessive.
Among their grounds of appeal, they argue the judge erred in finding that the offences were aggravated by gratuitous cruelty and an abuse of authority and trust.
Judge Turnbull had emphasised the need to send a strong message in his judgment.
"These offenders were engaged as police and so understood to be working in an environment where they were trusted," he said at the time.
"A victim is entitled to assume that a person will not abuse their position of trust."
Black and Trautsch were convicted after each pleading guilty to common assault and unauthorised use of a prohibited weapon, being pepper spray.
Black also pleaded guilty to two further counts of intentionally communicating protected information after showing his footage of the assault to another police officer.
Their appeal will go before the Court of Criminal Appeal later this year.
Footage of their assault of the woman drew widespread condemnation after it was released to ABC's Four Corners program in June as part of an investigation into police brutality.
It came amid growing calls for police transparency after accusations of gratuitous violence, particularly in the wake of the chaotic February protests against the visit of Israeli president Isaac Herzog.
Later in June, the police watchdog handed down a scathing report revealing rampant bullying, sexual harassment, and bullying within the NSW Police force.
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