Working principle
The drive engages the chain while the housing stores the returning chain. Guides and the supporting structure keep the load path aligned throughout the required travel.
Product / Stage lifting equipment
Rigid Chain Technology & Lift System Selection Guide
A selection hub for rigid-chain lifting systems used in theatre stages, orchestra pits, lift tables and matrix platforms. Load, travel, speed and synchronization are engineered per project.
Model30A / 35A / 40A / 60A / 80A / 100A
Maximum static-load range10–200 kN
Maximum travel1.2–10 m
Speed range150–300 mm/s
30A35A40A60A80A100A
30A–100A Model Comparison
Screen the series by load, travel and installation height, then confirm speed, duty cycle, synchronization and safety requirements with engineering.
| Model | Max. static load / travel | Max. dynamic load / travel | Rated speed | Minimum installation height | |
|---|---|---|---|---|---|
| 30A Rigid Lifting Chain | 10 kN / 1.2 m | 8 kN / 1.2 m | 150 mm/s | 200 mm | Full specifications → |
| 35A Rigid Lifting Chain | 12 kN / 1.5 m | 10 kN / 1.5 m | 200 mm/s | 226 mm | Full specifications → |
| 40A Rigid Lifting Chain | 40 kN / 2 m | 30 kN / 2 m | 300 mm/s | 370 mm | Full specifications → |
| 60A Rigid Lifting Chain | 90 kN / 2 m | 60 kN / 2 m | 300 mm/s | 450 mm | Full specifications → |
| 80A Rigid Lifting Chain | 130 kN / 2 m | 95 kN / 3 m | 300 mm/s | 550 mm | Full specifications → |
| 100A Rigid Lifting Chain | 200 kN / 3.5 m | 150 kN / 5 m | 300 mm/s | 650 mm | Full specifications → |
Series data below is referenced from Zhonghui Technology's public product archive. Final selection, interfaces and manufacturing data follow the drawing approved by Zhonghui Manufacturing.
Rigid chain technology
How rigid chain lifting technology works
A rigid chain is guided through a drive unit so its links interlock on the load side and act as a push-and-pull column. Unlike a hanging chain, the guided chain can transmit compressive force. This makes the technology useful where a platform or stage element must be lifted from below and available pit or installation space is limited.
Where it fits
Typical applications include theatre stages, orchestra pits, lift tables and synchronized matrix platforms where project-specific travel, guidance and controls can be engineered together.
What determines selection
Moving load, load distribution, travel, speed, duty cycle, lifting-point spacing, installation envelope, maintenance access and the required control interface must be reviewed as one system.
Evidence before approval
Final selection should be supported by approved drawings, interface dimensions, control and safety requirements, inspection records and the acceptance plan for the actual project.
Advantages
- Project-specific capacity, travel and installation options
- Mechanical design for stage-equipment duty
- Standalone or integrated control options
- Drawings, technical data and installation coordination
FAQ
Can the product be customized?
Yes. Load capacity, travel, dimensions, control mode and installation envelope can be configured.
Information to Confirm Before Selection and Quotation
A selection hub for rigid-chain lifting systems used in theatre stages, orchestra pits, lift tables and matrix platforms. Load, travel, speed and synchronization are engineered per project. Stage machinery is engineered for each project. Share the following information so the product, installation conditions and control interface can be assessed together.
Load and duty
State the rated load, dynamic duty, operating frequency and any synchronized-motion requirement.
Space and travel
Provide available installation space, travel, platform dimensions and structural constraints.
Speed and control
Define speed, positioning accuracy, interlocks, emergency-stop logic and supervisory interfaces.
Delivery and acceptance
Confirm supply boundaries, installation, commissioning, documentation, training and acceptance requirements.
Applications, selection criteria, customization, delivery, on-site service and maintenance
Zhonghui Manufacturing engineers rigid-chain systems around project load, travel, installation space and duty cycle. Customization, delivery coordination, on-site service and long-term maintenance can be defined in the approved project scope.
How is the system selected?
Selection is based on load, travel, installation space, duty cycle, synchronization and project safety requirements.
Can the equipment be customized?
Zhonghui Manufacturing can prepare a project-specific proposal after drawings, interfaces and operating requirements are confirmed.
What service is available?
Delivery coordination, on-site service and long-term maintenance support can be agreed for the project scope.