JMA Attachments Skid Steer Hammer

JMA Attachments hydraulic hammers are designed for impact applications such as breaking and demolition, while the GND post driver hammers are designed specifically for driving posts. The lineup provides different energy classes and machine-size ranges for skid steers, mini excavators, and excavators.How do I choose the right JMA hydraulic or post driver hammer.

The collection includes the JMA-45 GND, JMA-53 GND, JMA-68 GND, and JMA-75 GND. Their energy classes range from 350 to 1,000 joules, with compatibility ranging from 1–4.5-ton mini excavators and skid steers up to 7–10-ton excavators and skid steers.

The models are sized for different carrier classes and provide progressively higher impact energy. The JMA-45 GND delivers 350 joules, the JMA-53 GND 500 joules, the JMA-68 GND 800 joules, and the JMA-75 GND 1,000 joules, allowing buyers to match the post driver to their machine and application.

The JMA lineup includes the JMA-400 Dingo, rated at 280 joules, and the JMA-SK530, rated at 500 joules, both designed for skid steer applications. These provide different impact-energy levels for matching the hammer to the size and requirements of the carrier machine.

Compatibility varies by model. The JMA-45 GND is listed for 1–4.5-ton mini excavators and skid steers, the JMA-53 GND for 3–6.5-ton machines, the JMA-68 GND for 5–10-ton machines, and the JMA-75 GND for 7–10-ton excavators and skid steers. The JMA-400 Dingo and JMA-SK530 are listed specifically for skid steers.

Choose a JMA hammer based on your carrier's operating weight, attachment compatibility, required energy class, and intended application. For post driving, select the GND model that matches your machine's weight range and required impact energy; for general hydraulic hammer work, compare the available joule rating with your skid steer's specifications and the material you need to break.