
1. Model: RNF016, RNF018, RNF020, RNF030, RNF040, RNF055, RNF060, RNF070, RNF080, RNF100, RNF120.
2. Function: Precisely controlled lifting, lowering, pushing, pulling and rolling movements.
3. Self locking trapezoidal screw,heavy duty,precision accuracy,low efficiency,use infrequently.
4. Arrangement: Single units, in pairs or multiple jacks systems, fully synchronization.
5. Power Source: electrically,manually or both.