



TO-322 / TO-323 / TO-324 Floor Hinge Series
The TO-322 / TO-323 / TO-324 Floor Hinge Series is shown in the Tongguan catalog for floor hinge door applications with 90 degree hold-open function. The series covers maximum door leaf widths from 1050mm to 1250mm and door weight ranges from 80kg to 180kg, with installation drawings for floor hinge and eccentric pivot hinge coordination.
What buyers need to know first
Hardware buyers usually compare door type, opening size, fire rating, finish and access-control compatibility before asking for price.
Three-Model Floor Hinge Range
The catalog presents TO-322, TO-323 and TO-324 as floor hinge models with stepped door width, door weight and closing force values for different project openings.
Hold-Open Function
All three models are listed as hold-open 90 degree type, suitable where the project requires the door to stay open at the specified angle.
Installation Drawing Support
The page includes floor hinge installation drawings, speed adjustment reference, eccentric pivot hinge installation drawings and installation instruction notes with millimeter dimensions.
Applications
Buyer Advantages
Three-model range supports heavier floor hinge door schedules
90 degree hold-open function suits commercial entrance applications
Door weight range up to 180kg for heavy door projects
Installation drawings support floor and pivot coordination
Can be supplied with matching glass door patch fittings, locks and other hardware packages
Related Hardware

8000 Series Fire Rated Exit Device
Rim type fire rated exit device for single and double leaf doors with UL/ULC listing and ANSI Grade 1 performance

F5000 Series Fire Rated Exit Device
Rim type fire rated exit device for single leaf doors, available in half-length and full-length versions

F5600 Series Fire Rated Exit Device
Rim type double leaf fire rated exit device with vertical rod function and 3-hour UL fire exit hardware listing