Product Overview
Built to withstand demanding use, the Superhinge features integrated brass bearings, to provide smooth, low-friction operation for both manual and automated gate systems.
- Exceptional Durability: Rigorously tested to 500,000 openings without signs of wear (equivalent to approx. 50 years of use at 25 openings a day).
- Heavy Load Capacity: Engineered to support substantial weight of metal gates up to 600kg, and available in various sizes to accommodate different gate sizes and weight.
- Flexible Gate Positioning: The offset hinge arrangement provides greater freedom when positioning gates, accommodating back-hung installations and additional clearance requirements.
- 180° Opening: Designed to accommodate opening angles of use to 180°, allowing gates to open back towards the fence line where the installation permits.
The Gatemaster Superhinge Offset version combines proven durability with greater flexibility in gate design. Ideal for back-hung installations and applications requiring additional clearance, it helps fabricators consider opening angles and potential trapping points while maintaining the strength and reliability of the Superhinge range.
Superhinge Range Variations
Standard Superhinge
Superhinge with Corner Lugs
Superhinge Inline Version
Product Codes
Superhinge Offset 180° Version
Maximum gate mass depends on the G dimension, a smaller G dimension generally supports more weight. Refer to the table for the recommended maximum gate mass (table and diagram below).
| Product code | G = 0-50mm | G = 50-100mm | G = 100-150mm | G = 150-200mm |
|---|---|---|---|---|
| SH160 | 125kg | 75kg | x | x |
| SH200 | 175kg | 125kg | x | x |
| SH250 | 300kg | 225kg | 150kg | x |
| SH300 | 600kg | 450kg | 275kg | 225kg |

IMPORTANT: These load values are guidelines only and assume correct installation and normal use. For gates near the stated limits or where suitability is uncertain, consult a qualified structural engineer before installation.
Manufacturer Guarantee
Signet Locks guarantees superior wear resistance. Should any Superhinge exhibit excessive wear under proper maintenance, we’ll replace it free of charge. To uphold this guarantee, hinges must be re-greased every six months.