Rotary Shaft Seal Products

Rotary shaft seals by CinchSeal eliminate wear and leaks in industrial mixing and bulk handling equipment by spinning along with the shaft. The 7500 Series of seals is a must for bucket elevators, screw conveyors, and other bulk solid applications. For unmatched sanitary seals, the 7800 and 9700 Series are made from 316 Stainless Steel. For help choosing the right rotary shaft seal for your equipment, don’t hesitate to contact us.

Airless Rotary Face Seal

Face seals are “airless” seals that operate without the need for air purging, making them ideal for applications where a purging air supply is unavailable, or where the presence of air can contaminate the handled product.

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High speed chopper seal for industrial processing mixers and blender
High Speed Chopper Seal

Chopper seals withstand the high shaft speeds of industrial chopper machines used in agriculture, wastewater treatment, and food processing. They are engineered to handle abrasive substances, solid particles, and powders without shaft damage.

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Rotary Shaft Seal for Screw Conveyors and Processing Equipment - 7550
7500 CEMA Screw Conveyor Rotary Shaft Seals

Our 7500 CEMA Screw Conveyor CinchSeal is designed for zero maintenance due to the unique self adjusting design. These seals are ideal for screw conveyors, bucket elevators, and similar bulk solid applications.

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Rotary Shaft Seal for Large Diameter Equipment - 7620
7600 Industrial Seals for Large Equipment

The maintenance free 7620 and 7650 solid aluminum CinchSeals are designed for larger shaft sizes ranging from 3.937” up to 6.00”. They are ideal for screw conveyors, bucket elevators, and other bulk handling equipment.

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Rotary Shaft Seal for Runout and Dust Leakage - 7850
7800 CEMA Screw Conveyor Rugged Rotary Shaft Seals

The newly designed 7800 Series CinchSeal for screw conveyors and other bulk handling equipment is made out of 316 Stainless Steel to handle dry and slurry products in the food service, pharmaceutical and chemical industries.

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Mechanical Rotary Shaft Seal for Food Mixers, Blenders, and Dryers - 9700
9700 Split SS Seal – Rotary Shaft Seals

The 9700 split seal is machined out of stainless steel and all internal parts meet USDA standards for indirect food contact. This split seal is recommended for industries that require stainless steel due to sanitary requirements.

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Mechanical Cartridge Seal
Cartridge Seals

Our CinchSeal Cartridge Seal, custom made for specific applications, is designed to replace lipseals on screw conveyor drive adapter plates such as Dodge, Linkbelt and Falk.


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Poly Split Seal for Screw Conveyors
Poly Split CEMA Seals

The model PS CinchSeal® is maintenance free and designed to seal screw conveyors, mixing and blending equipment. It is manufactured out of polypropylene and stainless steel to handle dry powder and slurry products in the food service, pharmaceutical and chemical industries where stainless steel is required.

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Mechanical Cartridge Seal
Air Regulator & Gauge Kit

Designed for all CinchSeal air purged seals with low pressure gauge reading. Compact size with full flow gauge ports and low torque, non-rising adjusting knob. This kit comes with all necessary fittings and can be disassembled without the use of tools or removal from the air line.

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Bakery Dough Mixer Rotary Shaft Seal
Bakery Dough Flow Seals

Designed for bakery customers experiencing product leakage and sanitation issues due to dough/water leaking out the ends of the dual shafts on their dough pump augers.

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Rotary Shaft Seal Features

Rotary Air Lock Rotary Shaft Seal
Rotary Air Lock Seals

Designed to replace rope packing on rotary air locks and is maintenance free due to its self-adjusting design. Custom seal housings are available in aluminum and stainless steel. The seals can be rebuilt with inexpensive repair kits.

USDA Approved Solid Rotary Seal
USDA Approved Solid Seals

Designed and manufactured to meet stringent USDA standards we have utilizing acorn nuts to isolate fastening threads during production runs, manufactured 1/8” radii in the 90 degree corners to eliminate bacteria build up, and provided through holes when necessary to allow for cleaning of the threaded holes.

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Rotary Shaft Seals