Tsubaki Products

Technical Data 　High-speed lifters 　Zip Chain Lifter 　Selection

Cautions for Product Selection

・ZIP CHAIN LIFTER achieves high-speed operation, and inverter drives are required. Please make sure to operate with sufficient acceleration and deceleration time.Rapid acceleration and quick stop may affect stopping accuracy or cause workpiece vibration. When the lifter shakes depending on the load condition, take a longer acceleration and deceleration time when starting or stopping the operation.
・The nominal speed of ZIP CHAIN LIFTER is the maximum speed. Make sure to consider the acceleration/deceleration time when calculating lifting/lowering time.
・Using a servomotor drive is recommended when faster lifting time, higher-frequency operation, multi-point positioning, or synchronized operation are required. Contact a Tsubaki representative for more information.

・Provide an inverter regenerative resistor with sufficient capacity according to the operating conditions to handle the large regenerative current generated during lowering.Consult the inverter manufacturer for regenerative resistor capacity.
・Use of an inverter with a capacity larger than that of the motor is recommended.
・Set up a sequence for activating the brake in the event the inverter trips.

・ZIP CHAIN LIFTER uses an induction motor with brake. When a servomotor is prepared by the customer, make sure to select a brake type with a keyway on the shaft.In addition, be sure to always use the maintenance bar during maintenance.

・Provide a regenerative resistor with sufficient capacity according to the operating conditions to handle the large regenerative current generated during lowering. Consult the servomotor manufacturer for regenerative resistor capacity.
・Do not use the built-in mechanical brake for braking even when stopping in an emergency. Be sure to use control logic that activates the mechanical brake after deceleration by the dynamic brake. For details, refer to the motor manufacturer's instruction manual.

・Do not use this product as a stopper or in any application where the impact load is applied to the lifting components of the table frame or the scissor arm links. Use the unit only within the nominal stroke range. Do not use the product as a stopper when lowering in particular, and do not prevent the table frame from descending in any way. Doing so may cause serious damage, including breakage of the chain.