Feature:
1.Positive pull the chain,roller blinds down,reveres the chain,head only unlock,roller blind automaatically up.
2.The system is equipped with retarder,and the rooler blind rises automatically and stabbly.
3.Roller blinds can be stopped at any height.
4.By adjusting the number of pre tightening turns of boost spring,the rising speed of roller blinds can be adjusted.
5.1:1.5 reduction ratio is adopted for the clutch making,which makes it easier to the chain.
6.the system is equipped with a limiter, and the rooler blinds will automatically stop when it rises/fall to a fixed position.
7.The clutch used to metal-core technology.
System with limiter, Automatic stop when the roller blinds rises/falls to hte fixed position.
Construction Features:
1Metal core technology:2Use high quality piano wire springs;
3.Springback type idler, reserved chain
installation holes design;
4.Simple styleSystem runs smooth
Performance Features:
1.Reduction ratio 1:1 and 1:15 can be chosen;2No-load tension is less than 0.3kg;
3Maxload 6kgMax area <10m.
and noiseless.
5.Lt can be match head rail.