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Elevator 4 Panels Center Opening Door Operator Using PM Motor
The elevator 4 panels center opening door operator represents an advanced door mechanism design primarily implemented in mid to high-rise buildings where efficient passenger flow and space optimization are critical. This configuration features two pairs of door panels that slide horizontally from the center toward opposite sides when opening, creating a wide, unobstructed entrance. The system's symmetrical operation provides several functional advantages over traditional single or two-panel designs, particularly in high-traffic elevator applications.
Modern center opening door operators have evolved significantly from their mechanical predecessors, now incorporating sophisticated electronic controls, safety systems, and energy-efficient components. The 4-panel variation offers approximately twice the opening width compared to standard two-panel systems while maintaining comparable installation depth requirements-a crucial factor in elevator shaft design.
The core mechanical assembly consists of four primary door panels constructed from durable materials such as stainless steel, aluminum alloys, or laminated safety glass with metal framing. Each panel pair connects through a robust carriage system that typically includes:
Upper and lower guide rails manufactured from hardened steel to ensure smooth, friction-reduced movement
Precision-engineered roller assemblies with sealed bearings for quiet operation
Synchronized drive belts or chains (depending on the model) that maintain perfect panel alignment
Counterbalance mechanisms that compensate for uneven weight distribution
The door operator's structural framework must withstand repeated cyclic loading-industry standards typically require a minimum of 1 million operation cycles without significant performance degradation. High-grade aluminum alloys or powder-coated steel form the primary support structure, providing both rigidity and corrosion resistance.
PRODUCT FEATURES
| JJ | 700 | 750 | 800 | 850 | 900 | 950 | 1000 | 1050 | 1100 |
| A1 | 1180 | 1255 | 1330 | 1405 | 1480 | 1555 | 1630 | 1705 | 1780 |
| B1 | 60 | 72.5 | 85 | 97.5 | 110 | 122.5 | 135 | 147.5 | 160 |
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