Black Jack Mini Overview

The Black Jack Mini is a 12V electric trailer jack with a 50mm diameter shaft that drops straight into any standard 50mm jockey wheel clamp. No additional bracket or mounting hardware required. It replaces a manual jockey wheel on caravans and trailers up to 3,500kg ATM, where ball weight sits around 10% of overall weight. Three mounting notches allow height adjustment for lift and storage position. The unit weighs 8.5kg and suits tight A-frame setups where space is limited.

Lift capacity is rated at 1,000kg with a maximum stroke of 500mm (or 650mm with the optional folding foot). The jack draws 6A at no load and up to 20A at maximum load via a pre-wired 50A Anderson plug. Safety Auto Stop cuts power at full extension and full retraction. All Black Jack products carry an unconditional 3-year warranty and are compliant with AS/NZS 5601.2:2020 + A1:2021. Assembled in Cleveland, Brisbane.

Features

• 50mm shaft fits standard jockey wheel clamps
• 1,000kg lift capacity, 8.5kg unit weight
• Safety Auto Stop at full extension and retraction
• Pre-wired 50A Anderson plug, plug-and-play
• Three mounting notches for height adjustment
• 3-year unconditional warranty, Australian assembled

What's Included

• 1x Black Jack Mini electric trailer jack
• 1x All-weather protective cover
• 1x Soft ground foot pad
• 1x Manual backup handle

Fitment

Fits any existing 50mm standard jockey wheel clamp. Screw the Black Jack Mini into the clamp, connect the Anderson plug to a constant 12V source, and the jack is operational. If your tow vehicle or caravan does not have an Anderson plug connection, a separate Black Jack wiring harness is available. No drilling or additional brackets required.

Frequently Asked Questions

Q: Will the Mini fit my existing jockey wheel clamp?
A: If your clamp accepts a standard 50mm diameter shaft, the Mini drops straight in. It replaces a manual jockey wheel without modification. Check the internal diameter of your clamp before ordering.

Q: What happens if my car doesn't have an Anderson plug?
A: The Mini requires a constant 12V supply via a 50A Anderson plug. If your vehicle or van lacks one, Black Jack sells a wiring harness that connects to the house battery or vehicle auxiliary circuit.

Q: Is 1,000kg enough for my caravan?
A: Ball weight is roughly 10% of ATM. A 3,000kg caravan has a ball weight of approximately 300kg, well within the Mini's 1,000kg capacity. The Mini suits caravans and trailers up to 3,500kg ATM. For heavier rigs, consider the Black Jack Master (1,600kg) or Maxi (2,000kg).

Q: Can I operate it without 12V power?
A: All Black Jack models include a manual backup handle for emergency operation if power is unavailable. A portable lithium battery with an Anderson plug output also works as an alternative power source.