Crown Precision Manufacturing, LLC

PSI Automation

We began as a manufacturer of diesel engine starters over 20 years ago under the name of Pneumatic Systems, Inc. PSI's design heritage of providing rugged and durable components for large capacity engines has continued today in the design of PSI's dependable vane air motors. For example, the same shock load factors used in starter component design has endured in our air motor designs. Shock and vibration, two of the most damaging effects from air motor use, are primary design considerations we have taken to ensure durability, especially in heavy-duty tool applications - such as tools used on oil drilling rigs. In addition to the strict heavy-duty design requirements, we have designed and constructed PSI's air motors based on the theme of simplicity. So simple that, normally, any maintenance required on our air motors can be done in the field without sending the motor back to the factory. Today our motors are used in a diverse range of applications from the aerospace industry to automotive, More... chemical, mining, petroleum, and all sorts of other processing and manufacturing industries.


 PSI Automation sells bi-directional and uni-directional motors ranging from 1/4 hp to as much as 70 hp. We offer torque ratings from 4 to 40,000 ft-lb. and speeds as low as 1 rpm to as high as 7000 rpm. Custom motors with special gear ratios or shafts are our niche. If you don't find the torque, rpm, shaft diameter or length you need on our standard list of model numbers, please inquire with our sales department - quantity doesn't matter. Various options of mounting styles are standard such as NEMA C-face and SAE flange mounts, foot mounts, and custom mounts are available as well. Our motors are constructed with corrosion resistant materials such as lightweight aluminum housings, stainless steel shafts and rotors, and hard chrome plated sleeves. We can even provide you with all the properly sized components needed to make your air motor system run trouble-free (click on control systems).

Brecher Manufacturing

Groth Engineering, Inc.

Groth Engineering is your trusted machining partner. We are here to effectively use our project resources to maximize performance on all levels. From simple to complex geometries and prototypes, to full production runs, Groth Engineering works with you, as a member of your team, to produce your parts and sub-assemblies the way you want them, right from the start.


We maintain a state-of-the-art facility along with highly experienced engineering and machining personnel that allow us to consistently produce at the highest levels. Communication is the cornerstone of every customer relationship. Our systems are designed to stay in touch with you at every step of the process.


We operate at the highest levels because we care. We care about you as a customer, we care about your project and your deadlines and we care about the craftsmanship that goes into each part.


When Groth takes on your project it_x0092_s because we pride ourselves in working with you. Our name goes on it, so we make sure it_x0092_s always More... going to be delivered the right way, to your specs each and every time.


 Mission Statement


 We are committed to be a world-class, precision machine shop. We will do this by providing our customers with product that is exceptional in quality, while maintaining a flexible delivery schedule tailored to their needs. We will value our relationships with our customers and our employees and will continue to adapt and be responsive to their changing needs with honesty and integrity.

Boecking Machining

Since 1990 Boecking Machining has been a high-tech CNC machining company with state-of-the art equipment.


With the development of Computer Aided Design software in the late eighties, mechanical designers had the ability to design more complex parts. Customers soon discovered that the current supply base of machine shops were unable to manufacture parts to the new complex/tolerances.


In 1990 Boecking Machining was founded to fill this niche, by providing complex quality parts, on-time and at a reasonable price.


Thus, the slogan "Hot Tuff Jobs" was born.


Boecking Machining has assisted designers and original equipment manufacturers (OEM) with high quality products, dependable service and on-time deliveries.

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