Product Announcements:
Hydraulic Fittings

Don’t Compromise! MAIN Manufacturing’s reducing flanges for hydraulic systems make changing sizes a breeze. Eliminate that Christmas Tree look and minimize leak points all while saving time and money. Read more...

The new and improved DHT Digital Hydraulic Tester precisely measures oil flow, pressure, and temperature. Ideal for reactive, proactive, and preventive maintenance, it conveniently checks hydraulic system performance and attachment setups. Read more...

Thanks to their advanced design, the diagnostic nipples are reliable components in the System 100 measuring device. They are made of hardened steel. The diagnostic nipples are maintenance free and are designed for temperatures from -40°F to 230°F (-40°C to +110°C). The integrated stop valve seals up to a 90 % vacuum. All mechanical parts in the diagnostic nipple are made... Read more...

To ensure an additional quality guarantee, at the beginning of 2017 it was installed in our plant a new automatic assembly line for the mounting and testing of the ball valves. This machine permits the assembly and the relative test, of all the standard valves up to 1”. For each assembled valve it is done an automatic report that shows every step of the process, thanks to the pictu... Read more...

Available options:

• Rapid Staplelok Male
• Super Rapid Staplelok Male
• Super Rapid Staplelok Female
• Rapid Staplelok Staple, D Type, Stainless Steel
• Super Rapid Staplelok Staple, D Type, Stainless Steel

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Hydracheck offers a new DKO male x female swivel (DKO 24° sealing cone with O-Ring) gauge port adapter with an M16x2 (Minimess) test point. Gauge port adapters offer a simple and easy method of adding test points into a hydraulic system. Ideal for solder-free screw-in pipe connections according to DIN 2353. Read more...

Hydracheck's products help you test, troubleshoot, maintain, and service your hydraulic components & systems. We will keep your hydraulic system operating safely and effectively with thousands of parts in stock and same day shipping on in-stock items. Read more...

Main Manufacturing Products has manufactured hundreds of special flanges that do not fit any established bolt hole spacing. We welcome the opportunity to quote on any particular flange not shown either in our catalog or online. Read more...

We manufacture hydraulic flanges, flange adapters, and couplings. Flanges to SAE J518, ISO 6162, ISO 6164, Vickers, Denison, Oilgear, Bosch-Rexroth, JIS, and others Read more...

ISO and SAE hydraulic flanges with an optional side port. Read more...