Heavy-Duty Counterbalance Hinge (HG-PA201-20)

This external surface-mounted heavy-duty counterbalance hinge (Product No. HG-PA201-20) provides smooth, soft-closing action to prevent lids from slamming shut. Users will be able to lift heavy top-opening lids with ease thanks to the heavy-duty lid support tension in the spring, providing a damper torque of 20 Nm (204 kgf-cm) over a maximum opening angle of 100 degrees.

The high-quality steel spring and stainless steel construction of the hinge body ensure long-lasting durability, providing value through longer product life as well as a superior experience for end users. The heavy-duty counterbalance hinge also features a smooth plastic slider and cover for a clean, neutral appearance.

Technical Details on the HG-PA201-20 Hinge

  • Heavy-duty lid support hinge facilitates the easy opening of heavy lids and smooth, no-slam lid closure.
  • For external surface mounting.
  • Torque is adjustable (+/-5%) by turning the torque adjustment screw.
  • Torque peaks at 20 degrees or 35 degrees, depending on the shape of the lid.
  • Product dimensions are 201 × 150 × 42 mm.
  • Maximum damper torque is 20 Nm (204 kgf-cm), guaranteed to within 10%. We also have HG-PA201 hinges available in 15 Nm and 25 Nm of torque.
  • Maximum opening angle is 100 degrees.
  • Spring steel is SWO grade.
  • Hinge body is 430 grade stainless steel.

See Installation Manual.


Find Project Design Inspirations at Sugatsune America

This heavy-duty counterbalance hinge lends itself to numerous applications in residential and commercial settings. Find more inspirations for your project right here at Sugatsune America.

We design our products specifically in response to the needs of our customers, and with our extensive inventory of lift-assist hinges and other hardware, we likely have just the right parts for your project needs.

Contact us to discuss your project and needs with our technical team, and for help finding the right hinges or other parts.

Weight 1385 g
Dimensions 201 × 150 × 42 mm

? 5%

Damper Torque (kgf-cm)


Max. Opening Angle (?)


Mounting Type

Surface Mount

Operating Temperature (?C)


Peak Torque Angle (°)


Torque Variation

? 10%

Overall Length (mm) Width (mm) Height (mm) Weight (g)
201 mm 42 mm 150 mm 1,385 g


Component Material Finish
Body A/B Stainless Steel (430) Plain
Cover A/B Plastic (PBT) Light Gray
Slider Plastic (POM) Plain
Spring Steel (SWO) Plain

Certain CAD files are not available for download from our website. Please email us at support@sugatsune.com with the product name and desired file format and we can email it to you.