Synchronized Hoist

Technical Specifications

Structural and Safety Features

Suitable Applications

• Rigging for concerts, events, and touring productions.

• Lifting and suspending lighting equipment, line-array speaker systems, and stage structures.

• Theatrical props, scenic elements, and television production stages.

• Permanent installations in theaters and performance venues.

• Overhead lifting applications where the D8 classification and control configuration are appropriate for the approved rigging plan.

Direct Control and Multi-Hoist Operation

The RH-1000S4 receives power and direct forward/reverse commands through a compatible control system using a 4-pin CEE connector.

When multiple hoists are connected to a direct-control hoist control panel, the operator can issue lifting or lowering commands to a group of hoists. However, receiving the same command does not necessarily mean that the hoists will maintain precisely synchronized positions.

Differences in load, voltage, chain elongation, and brake characteristics can result in variations in travel distance. If the application requires multiple lifting points to maintain the same elevation or perform controlled positional movements, a suitable solution incorporating travel measurement/encoders, load monitoring, and a control system designed for synchronized movement is required.

Reference Dimensions

Accessories and Compatibility

• Compatible with direct-control hoist cables and control panels using a red 4-pin CEE connector.

• Accessories specified by KUPO include the RH-1000-1 W flight case and CH-52B protective cover.

• For low-voltage centralized control, the manufacturer recommends selecting the RH-1000LV instead of the RH-1000S4.

• Compared with the RH-1000S8, the RH-1000S4 operates at a lower speed of 4 m/min, making it suitable for applications where standard lifting speed and easier movement control are preferred.

Important Notes on the D8 Classification

Important: The D8 classification refers to the equipment classification, while its use must comply with the applicable rigging plan, safety procedures, secondary safety requirements, and regulations in force at the venue. The D8 classification should not be interpreted as automatically permitting scenic movement above people.

The selection, installation, operation, inspection, and maintenance of the hoist must be carried out by competent and appropriately qualified personnel.

Conclusion

The KUPO RH-1000S4 is a suitable choice for rigging systems requiring a 1,000 kg D8 electric chain hoist with Direct Control and a standard lifting speed of 4 m/min. Designed with stage environments in mind, the hoist combines a heavy-duty DC brake, overload-protection friction clutch, Grade 80 load chain, and FEM 2m / ISO M5 duty classification to support the lifting and suspension of stage equipment, structures, and scenic elements when implemented according to an appropriate technical rigging plan.

However, hoist selection and operation should not be based solely on the 1,000 kg rated load or D8 classification. The operating organization should assess the actual load, rigging configuration, control system, installation conditions, secondary safety requirements, and applicable safety regulations in full. For synchronized movement across multiple lifting points or precise positional control, an appropriate control and monitoring solution should be used rather than simply grouping multiple hoists through a Direct Control configuration.