The Cheeron reducing parallel threaded rebar coupler is a type of parallel threaded connection coupler. Different from standard threaded couplers, reducing threaded couplers are designed to connect two rebars of different diameters. Simply put, a reducing rebar coupler connects a smaller-diameter rebar at one end and a larger-diameter rebar at the other end. Variations in rebar diameter are commonly encountered in frame column construction, including scenarios where the longitudinal reinforcement of an upper column has a larger diameter than that of the lower column, or vice versa. Under such circumstances, reducing rebar couplers are required for connection, which serves as the most effective and straightforward solution.
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| Rebar Diameter | Outer Diameter(mm) | Length(mm) | ||
| mm | ||||
| Rebar Strength Level ≤400 | Rebar Strength Level 500 | Rebar Strength Level ≤400 | Rebar Strength Level 500 | |
| 12 | 18 | 19 | 28 | 32 |
| 14 | 21 | 22.5 | 32 | 36 |
| 16 | 24 | 25.5 | 36 | 40 |
| 18 | 27 | 28.5 | 41 | 46 |
| 20 | 30 | 31.5 | 45 | 50 |
| 22 | 32.5 | 34.5 | 49 | 54 |
| 25 | 37 | 39.5 | 56 | 62 |
| 28 | 41.5 | 44 | 62 | 68 |
| 32 | 47.5 | 50.5 | 70 | 76 |
| 36 | 53 | 56.5 | 78 | 84 |
| 40 | 59 | 62.5 | 86 | 92 |
| 50 | 74 | 78 | 106 | 112 |
It eliminates the need for starter bars or post-installed threaded rebar, facilitating construction.
Ensure that the force is transmitted in a straight line.
High tensile strength, meeting ISO international standards
The construction operation is convenient and can be carried out in all directions and around the clock.
Customizable, it accelerates the project progress.
Application: It is mainly used in cases where the diameters of the reinforcing bars at both ends are different. For instance, in building columns, the bars are generally thinner as they move upwards. This is where variable diameter bar straight thread sleeves are used.
In the construction of steel bar connection in super high-rise buildings, the straight thread sleeve connection technology has become the preferred method for steel bar connection of core load-bearing components (such as giant columns, core tube shear walls) due to its high efficiency and reliability.
The variable diameter steel bar straight thread sleeve, through refined seismic performance design, effectively responds to various seismic loads.
The connection of the reducer sleeve ensures that the cantilever node can withstand the action of external forces such as wind load and seismic load.
