The DR4000 Quad Roller is a high performance roller carriage assembly consisting of 4 x “ZZ” precision bearing rollers with Ryvelin tyres for smooth operation and durability.
The combination of an engineered polymer outer carriage, stainless steel middle carriage and cast zinc inner carriage is designed to support door weights up to 280kg.
Suitable for Aluminium Sliding Doors
Cast zinc passivated
DR71/DR73 high performance polymer with “ZZ” bearing and dust seal.
MAX LOAD CAPACITY:
140kg per carriage
Tested to 30,000 cycles