Barrel Torque Dampers

Barrel Torque & Rotary Dampers

Barrel torque dampers date back to the invention of soft-closing toilet seats. When Sugatsune developed a damper for toilet seats.  This technology marked the beginning of smooth, soft, anti-slamming features on everyday products.  Today, features like our patented Lapcon™ technology can be found on many premium products.

Our UDH series of rotary dampers are NSF certified for usage in food preparation equipment.  They have also been cycle tested for maximum durability for commercial applications.  This series is available in a variety of sizes, torque ratings and dampening directions to meet your needs.  Also available in a stainless steel body, this product stands up to corrosive environments while maintaining a consistent torque force.


FacetWp Door Max. Thickness (mm)
Max. Door Thickness (mm)
Bar Diameter (mm)
Load Capacity (kg)
Glass Thickness (mm)
Load Capacity (kgf)
Center to Center Length (mm)
Load Capacity (lbs)
Magnetic Force (lbs)
Holding Force (lbs)
Retaining Force (lbs)
Push In Force (lbs)
Door Max Height (inch)
Door Min. Height (inch)
Door Max. Weight (lbs)
Door Min. Height (inch)
Door Max. Weight (lbs)
Door Max. Width (inch)
Door Min. Width (inch)
Door Min. Thickness (inch)
Door Max Torque (lb-in)
Door Min Torque (lb-in)
Load Capacity (lbs/pair)
Load Range (lbs/pr)
Handle Depth (inches)
Damper Torque (lbs-in)
Torque Variation (lbs-in)
Positive Catch
Positive Lock
Positive Stop
Soft Close
For Drywall
Undermount Hook
Multi-Prong Hook
Million Lock
Master Keying Availability

Basic Structure

Lapcon Rotary dampers utilize the principle of fluid resistance to reduce the speed of moving parts.  Oil is used to provide the braking force of the damper. Making the torque easily adjustable by changing the oil’s viscosity. If you can’t find a rotary damper to fit your application, contact our team of experts who can assist you with a customized solution.

Innovation Since 1930

Since 1930, Sugatsune has been a trusted source for precision-engineered hardware solutions.  From architectural and furniture hardware to industrial components for industries including food, medical equipment, transportation, and aerospace, you can find the right solution to help build your creations. Sugatsune America is AS9120 B and ISO9001;2015 certified and distributes unique products that create convenience and satisfaction for people.

Explore barrel torque and rotary dampers, as well as over 6,000 products available in the United States. please consult our digital resources, featuring extensive product literature and downloadable CAD files, or contact our experts to find the right solution to your creative challenges.