STEAMBOW PowerUnit

as an upgrade for your crossbow

This involves no permanent modifications to your crossbow, and just takes a few minutes. As soon as our Power Unit is mounted to your crossbow, you have a fully functional Steambow – with all of the advantages. And you can use your upgraded crossbow without compressed air at any time, just like any other Steambow. This allows you to stay flexible and use your crossbow however you wish.

Attention: You need an Excalibur stringing aid or access to a bow press to remove the string from your original Excalibur crossbow.

We have to configure and adjust the Power Unit for the specific crossbow model before we deliver it to you. At this time, we only offer such upgrade kits for crossbows from the Canadian manufacturer Excalibur. Excalibur Crossbow Inc. has been building top quality hunting crossbows for professional users for over 35 years – the perfect platform for our Power Unit.

STEAMBOW PowerUnit

as an upgrade for your crossbow

This involves no permanent modifications to your crossbow, and just takes a few minutes. As soon as our Power Unit is mounted to your crossbow, you have a fully functional Steambow – with all of the advantages. And you can use your upgraded crossbow without compressed air at any time, just like any other Steambow. This allows you to stay flexible and use your crossbow however you wish.

Attention: You need an Excalibur stringing aid or access to a bow press to remove the string from your original Excalibur crossbow.

We have to configure and adjust the Power Unit for the specific crossbow model before we deliver it to you. At this time, we only offer such upgrade kits for crossbows from the Canadian manufacturer Excalibur. Excalibur Crossbow Inc. has been building top quality hunting crossbows for professional users for over 35 years – the perfect platform for our Power Unit.

Steambow Powerunit

Steambow Power Units are currently available for the following models:

  • Excalibur MATRIX BULLDOG 400
  • Excalibur MICRO 355

Is your model not on the list?

Contact us for an individual solution!

What’s in the kit?

A Power Unit consists of the piston block that replaces the original riser and our compact valve. This valve is connected to the bottom of the piston block. The kit also includes all screws and materials you need to install the conversion and a printed manual on how to operate and maintain your Steambow. Attention: You will need standard (inch) hex keys to install the Power Unit. These keys are not included.

Assembly instruction PowerUnit Standalone

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