Project Description

Xencor Lab | Buena Park, CA

Project Description

Xencor is a pharmaceutical company developing antibody-based drug candidates for cancer and other serious diseases, using its XmAb protein engineering platform.

The lab is having trouble closing doors due to air balance issues even with a standard surface closer installed. The project manager’s goal is to solve this problem and suggested that the Waterson Hinge is the solution to make the doors close properly and overcome the air balance issue

Waterson Self Closing Door Hinges :

    1. K51M-450-A3-US32D: full mortise 4.5 inch x 4.5 inch, heavy-duty self-closing hinges, aesthetic look without extrusive arms, 3-hour fire-rated, 304 stainless steel.
    2. K51M-500-A3-US32D: full mortise 5 inch x 5 inch, 304 stainless steel, support heavy-duty, adjustable speed and closing force.

Fill out the form below and request a trade discount for your project.

Managing Company

G&G Door Products
7600 Stage Road, Buena Park, CA 90621, US

  • Xencor Lab | Buena Park, CA
  • Xencor Lab | Buena Park, CA

Request For Quote

Please note that Waterson Closer Hinges start from a size of 4″x4″. If you’re in need of smaller self-closing hinges, we’d recommend checking out some other resources! Also, we only provide single acting closer hinges. Thank you.

Recent Post

  • Waterson 1:4 vs 5:8 Radius Hinges

Replacing Door Hinges: 1/4 vs 5/8 Radius vs Square Corners

October 16th, 2026|Comments Off on Replacing Door Hinges: 1/4 vs 5/8 Radius vs Square Corners

Quick Answer Most 4 inch residential door hinges have one of three corners: square, 1/4" radius, or 5/8" radius. A rounder hinge fits a mortise [...]

  • Self Closing Door Hinges Close in Cold Weather

Why Won’t My Self Closing Door Hinges Close in Cold Weather

October 16th, 2026|Comments Off on Why Won’t My Self Closing Door Hinges Close in Cold Weather

Quick Answer An exterior door that closes fine in summer but won't latch in winter is usually affected by two things: weather stripping that stiffens [...]

  • Waterosn Question Mark

Soft Closing Hinges: 9 Most Frequently Asked Questions

October 15th, 2026|Comments Off on Soft Closing Hinges: 9 Most Frequently Asked Questions

Since the AIA in 2018, there has been an increased interest in Waterson hinges for many different projects. We have been inundated with questions by [...]