Dormakaba Severe Duty Ball Bearing Butt Hinge – 100 mm x 75 mm x 3.2 mm
Dormakaba severe duty ball bearing broad butt hinge designed for high-load applications on timber or metal doors used with timber or pressed metal frames. The increased hinge thickness provides additional strength for heavy or frequently used doors.
Key Features
- Severe duty hinge construction for higher door weights and frequent use.
- Ball bearing design supports smooth door operation under load.
- Loose pin configuration allows hinge separation for installation or maintenance.
- Manufactured from Grade 304 stainless steel for commercial environments.
Fire Rated
- Approved for use on fire door assemblies in accordance with AS1905 Part 1 when installed as part of a compliant doorset.
Specifications
What's In The Box
- 20 x Dormakaba severe duty ball bearing butt hinges
- (8) x 4.8 x 35 mm stainless steel wood screws per hinge
- (4) x M5 x 12 mm stainless steel metal thread screws per hinge
Suitable Uses
- Heavy commercial timber or metal doors
- Fire doors when specified with compliant door assemblies
- Doors fitted with closers or subject to high usage
Download PDF Resources
Frequently Asked Questions
What makes this hinge “severe duty”?
The increased 3.2 mm hinge thickness provides additional strength for heavier doors and high-traffic installations.
Is a loose pin hinge suitable for external doors?
Loose pin hinges are generally not recommended for external or security-sensitive doors unless additional security measures are in place.
Are fixings supplied with the hinge?
Yes, stainless steel fixing screws suitable for timber and metal frames are supplied.
Additional Information
- Loose pin hinges allow easier door removal for maintenance but should be assessed carefully for security applications.
- Severe duty hinges are commonly specified on tall or solid core doors to manage increased load.
- Hinge quantity and placement should be determined in line with door manufacturer and fire compliance requirements.
