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    THG Corporation

THG Corporation is a Motion and Control Integrator committed to meeting your needs for hydraulic power units, expert industrial component selection, custom control system design, and complete hydraulic, pneumatic, electrical, and compressed air field service.

You are invited to read more about THG Corporation and its three subsidiaries.


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Our Best Advice

Customers rely on us to help select components, design complex systems, to manufacture, install, and maintain machinery and equipment. We offer our best advice through our blogs.

THG Corporation

The Hope Group is an authorized full-line Parker distributor featuring hydraulic, pneumatic, fluid connector, and sealing products for OEM and MRO applications.

Sorensen Systems is a designer/builder of custom systems providing clean water, renewable energy sources, and technologically advanced process systems for industry.

Hope Air Systems is an authorized distributor for Kaeser Compressor featuring energy efficient rotary screw compressors as well as a designer/builder of skid-mounted packaged compressed air systems.

Hope Service can dispatch its field service fleet of vehicles and experienced, factory-trained technicians to provide emergency and routine field service to its hydraulic, electrical, and compressed air systems customers.

The Hope Group owns and operates seven Parker Stores at its branch locations providing "while you wait" replacement of hose assemblies and immediate on-hand access to 3,000 Parker fluid connector parts.

The Hope Group provides 24 hour access to $150 million of Parker parts through its eCommerce website,, offering one or two-day shipping of all your hose & fittings, hydraulic, pneumatic, valve, and filtration needs.

iPower Distribution Group of New England provides supply chain consulting and implementation through streamlined procure-to-pay process, vendor managed inventory (VMI), Kanban, and in-plant buyer-planner services.



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Air Demand Analysis
Air Flow Measurement
Air Leak Detection
Condensate Management
Designing Air Systems
Energy Management
Extended Warranty
Fluid Analysis


Air Compressors
Compressed Air Dryers
Nitrogen Generators
Packaged Air Systems
Piping Installations
Vacuum Systems


Air Audits
Airend Rebuilds
Compressor Parts
Compressor Rentals
Compressor Service
Preventive Maintenance


Our Best Advice

  Peter-Rhoten-Hope-Air-Systems   Why Blow Offs Are The Newest Secret Saver  
  Peter Rhoten
Hope Air Systems


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Are You Smarter Than
A Compressor Expert?

Even a lawyer is smart enough to know he or she shouldn’t represent oneself in a legal matter. It’s much better to get a specialist attorney to handle your case.

advice-from-hope-air In the case of selecting an air compressor or dryer, it makes sense to rely on an expert so that you get the right equipment, don’t overpay, don’t set yourself up for disappointment in the future, and to obtain general peace of mind.

Our experts at Hope Air Systems can help with equipment selection, maintenance, repair, and replacement. We have industrial customers that have relied on us for decades. If you need a source for solving a compressed air challenge, the experts at Hope Air Systems are ready to help.





For over 40 years, Hope Air Systems has operated as the capital equipment integrator for THG Corporation, featuring leading manufacturers of rotary screw, piston, centrifugal and oil-free compressed air systems and components. Read more about the history of Hope Air.

Compressor Service, Rentals and Parts
Hope Air Systems has a fleet of service vehicles that can be dispatched to meet any emergency repair requirement in New England on a 24 hour a day basis. Hope Air Systems can provide a full range of installation and maintenance services including:

Preventive Maintenance Agreements
Overhauls and rebuilds
Installations and piping
• Oil and Vibration Analysis
• Used Air Compressors




Our Most Popular Compressor

kaeser-airtower-7.5cThe Kaeser 7.5 HP Airtower compressor is our most popular model. If you want a reliable source of clean, dry air that you do not have to think about on a daily basis, the Kaeser Airtower was designed with you in mind. More of our customers buy this than any other unit.

This rugged, reliable shop compressor is our most popular for light industrial applications such as woodworking, machine shops, metal fabrication, vehicle maintenance and repair. Although the 7.5 HP is the single most popular, it’s also available in 4HP and 5HP versions too.

Kaeser 7.5C Airtower: Rated horsepower is 7.5; Flow at 125 psig (cfm) is 28.3; Maximum pressure (psig) is 217.

Hope Air Systems also has variable speed Kaeser Rotary Screw Compressors and Kobelco Oil-Free Compressors.


Our Most Popular Service

kaeser-sfc-55Customers benefit from our engineer's and technicians' experience with piping installations. Lightweight aluminum piping systems like Kaeser SmartPipe solve a lot of the problems that compressor installers have faced over the years. SmartPipe "quick connect" piping's leak-free connectors have no need for welding, threading or brazing so installation is faster and less labor-intensive, which saves the customer money. Quick connect aluminum piping can connect to existing systems with other pipe types and be disassembled and reassembled to fit your facility needs if they ever change.

Kaeser SmartPipe: A lightweight aluminum extrusion that is corrosion-resistant, easy to install and has a lower cost of ownership when compared to black iron, galvanized iron and copper piping.

Hope-Service also provides 24/7 Emergency Service and Preventive Maintenance for air compressors, hydraulic systems and electrical controls.



THG Corporation
70 Bearfoot Road
Northborough, MA 01532

Phone: 508-393-7660 | Fax: 508-393-8203 | Email

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