![]() These tools are well suited to working quickly on harder matrix (all tools can work on hard matrix, but more patience is required with less powerful models). The ZOIC Chicago is fitted with our unique positive stylus locking mechanism, which means your chisel will never rotate or spin. A range of interchangeable styli are available. This ZOIC Chicago is a good all-rounder that balances power and precision due to its size. These have an optimum operating pressure of 6.2 Bar or 90 PSI. Models like the The ZOIC Chicago are impact-driven and work at high pressures. The frequency of the beats is also particularly effective when working on sticky fossils or pyritic rocks, generating microfractures causing ‘pops’ that would not otherwise occur. These tools have an optimum pressure range of 0.5-3.5Bar or 7-50PSI and are significantly more powerful for matrix removal. They are quiet and economical to run and require your air compressor to ‘kick in’ much less often. Low pressure tools (such as our ZPT-T Rex), funnily enough work at very low air pressures. At low input pressures, the pressure exerted on the surface area of the ZPT T-Rex is much greater than that exerted on that of the ZOIC Chicago (a modified Chicago Pneumatic CP-9361), because the surface area of the piston is significantly larger. This is a result of the size of the piston. Some have their optimum working pressure set much higher, and others work at very low pressures. There are two main types of air pen within this category. In fact, the low pressure tools (such as the ZPT-TR T-Rex) are significantly more powerful than their high pressure counterparts. With some of these impact-driven tools, like our ZPT T-Rex and ZPT ZOIC Chicago, as a result of the internal mechanisms they are much more powerful than their pusher plate counterparts and some are also able to work at much lower air pressures (low PSI) with considerably less air consumption. Our innovations and designs are changing the way we approach fossil preparation, and we're always working on something new so keep checking back! Our fossil preparation air pens are precision engineered to exacting standards, built with consistency for dependability and of course, enjoyability. In the last few years, we have grown beyond what we could possibly have imagined through word-of-mouth recommendation. We have an incredible demand for our air pens, with many laboratories and preparators upgrading their set-up to a ZOIC PalaeoTech one. Whether part of our budget range, or our PRO Range, at ZOIC PalaeoTech it is important to us that we are providing you with the best 'bang for your buck' within its category compared with other providers. Whilst there are ‘general purpose’ tools to suit somebody just getting started, many professionals or advanced vocational fossil preparators have a myriad of tools each with its own very specific niche in their work. All of our own-brand tools at ZOIC PalaeoTech are custom designed to fulfil a need in fossil preparation, but we do our best to make them as versatile as possible to maximise their usefulness. What sort of fossils are you collecting? How fragile are they? Is there a lot of hard rock that you need to remove before working on the fossil? What’s your budget? Do you already have an air pen?ĭifferent tools do different jobs, and have different internal mechanisms which make them exceptionally good at some jobs, but relatively poor at others. There are a few things to consider when purchasing an air pen. For a beginner, the natural progression up from an electric engraver or hand tools is an air pen before diversifying into multiple air pens and air abrasives Essentially, an air scribe is a compressed air driven stylus or needle that repeatedly hits the rock many thousands of times per minute, removing matrix from your fossil. Air pens are the most ubiquitous type of fossil prep tool there is, found in garden sheds up and down the country all the way through to museum and professional prep labs. Air pens or air scribesare the number one tool in fossil preparation.
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