The Ultra G4 post driver provides exceptional flexibility on sloping or uneven ground, with 27° of hydraulic side tilt and a 30° top-link range. Operators can maintain professional-grade fence lines even on challenging hillsides. The robust hydraulic system delivers smooth, controlled hammer cycles through an 11 mm wire rope and large 180 mm pulleys — reducing rope wear while delivering serious impact.
As standard, the Ultra G4 is equipped with a 300 kg contractor block and can be upgraded to a 340 kg or 380 kg option for increased hitting power. Contractors who need additional reach can also specify 4.8 m or 5.3 m mast heights for superior driving force when working with long strainers, deer posts or driving posts into tough ground conditions. Optional hydraulic legs with 200 mm of travel make setup fast and stable on uneven sites
A Closer Look | Ultra G4 Post Rammer
One of the key advantages of the Ultra G4 is its long-term adaptability. FencePro’s modular MBA system allows operators to fit (or retro-fit) new bases and attachments — such as the 180° Rotating Base, Rock Spike Extractor system, or auger kit — as their business grows. No post-cap is required thanks to the pin-and-chain steering system, which also assists in guiding your Rockspike for a straighter pilot hole.
Manufactured and assembled in Palmerston North, every Ultra G4 post driver is built with premium materials, including New Zealand-made hydraulic rams and a custom-built Italian valve bank for smooth control and fast cycle times. Each machine is sandblasted, primed, and finished with a durable two-coat industrial paint system, providing better corrosion resistance and a professional finish that lasts.
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