Posted May 27th, 2026

Resin Roof Bolter

The Xcel Roof Bolter series has been essential in providing underground roof support for over fifteen years. Since rolling out the first Xcel Roof Bolter in 2010, we’ve designed and manufactured custom machines with an array of mast types, from simplified designs for underground construction to high-quantity carousel masts for large scale rock reinforcement. Now, Prairie Machine is proud to introduce our first Xcel XB-384 Roof Bolter with resin injection.

The new XB-384 is a remote-controlled roof support system which allows the operator to install resin-anchored roof bolts to ensure that work can proceed safely. This configuration of Roof Bolter carries over many of the features of previous models, including an extendible boom and indexing mast which can tilt as much as 65° and rotate up to 90° in either direction.

The process of installing a roof bolt with the new XB-384 configuration is comprised of three steps:

An operator remotely adjusts the boom and mast position and uses the Roof Bolter to drill a hole approximately 8-¾ feet into the mine roof. The drilled hole goes through the possible failure zone and into the stable ground layer.

Next, the operator adjusts the boom and mast position again to align the resin retaining assembly with the drilled hole. The operator then activates the resin installation assembly which then pushes resin tubes into the drilled hole.

Finally, the operator adjusts the boom and mast position again, this time to align the roof bolt tip with the drilled hole. The operator then installs the roof bolt most of the way into the drilled hole. Next, the operator rotates the bolt within the hole to break open the resin tubes and blend the resin mixture. Once the resin is mixed, the operator finishes installing the roof bolt.

As with previous XB-384 Roof Bolter configurations, the resin injection unit conforms to Tier 4 diesel engine standards, with onboard exhaust treatment systems in place to keep the air within the mine site as clean as possible. Standard safety systems, including a fire suppression system and falling object protective structure, allow the operator to confidently secure the roof and allow additional equipment and personnel to safely enter the area.