PC (Precast Concrete) Coupler
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Features
- Coupler designed for precast construction.
- Connects rebar even when centerlines do not align, absorbing up to 10 mm of center tolerance.
- Absorbs 15–30 mm of length tolerance.
- Threaded fastening draws both rebars together in the compression direction.
- Review tensile, yield and low-cycle test documentation for the applicable rebar grade and diameter.
- Minimized residual slip.
- Easy assembly and installation enable standard site crews to install it.
- Preassembly enables on-site fastening; installation time depends on size and site conditions.
Specifications
- A
- Nut coupler length
- B
- Nut coupler outside diameter
- C
- Rebar bore diameter
- D
- Minimum exposed rebar length
| Type | A | B | C | D |
|---|---|---|---|---|
| D13 | 55.0 | 50.0 | 22.0 | 90.0 |
| D16 | 60.0 | 55.0 | 26.0 | 100.0 |
| D19 | 71.0 | 60.0 | 30.0 | 115.0 |
| D22 | 80.0 | 65.0 | 32.0 | 130.0 |
| D25 | 90.0 | 70.0 | 35.0 | 145.0 |
| D29 | 105.0 | 75.0 | 40.0 | 165.0 |
| D32 | 120.0 | 80.0 | 43.0 | 180.0 |
| Tolerance | ±1.0 | ±0.5 | ±0.5 | - |
Unit: mm※ Dimensions may change due to product improvement or manufacturing process changes.
Components
-
Nut Coupler
-
Bolt Coupler
-
Sleeve
-
Knob
Installation Steps
-
1. Insert the coupler onto the rebar to be connected.
-
2. Position the knob after the first rib of the rebar.
-
3. Hand-tighten the sleeve and knob. Repeat loosening and tightening in the reverse direction two to three times for complete fixation.
-
4. Tighten the sleeve and knob on the opposite rebar in the same way.
-
5. Lock the coupler, then tighten it with a pipe wrench to complete the connection.
Product selection and quotation
How are PC Coupler tolerances and installation time checked?
The PC Coupler is used for rebar splicing in precast structures. Review center and length tolerances, exposed bar length and preassembly with the site drawings. Ask about the applicable tolerance range and installation time for the actual size and assembly conditions.
| Product | Purpose | Site checks |
|---|---|---|
| Ultra Coupler | Field-assembled rebar splicing | Rebar grade, diameter and installation space |
| Terminator | Rebar end anchorage | Anchorage details and design requirements |
| PC Coupler | Rebar splicing for precast structures | Center and length tolerances and exposed rebar length |
| Structural Coupler | Splicing fixed, threaded rebars | Long/short end threads, bar spacing and assembly clearance |
Before applying the product, check the rebar grade and diameter and the site conditions. Review test documentation against the design requirements. Published test results apply to the specified specimens and sizes.
What information is needed for a quotation?
Provide the product, rebar grade and diameter, quantity, site drawings or photos, whether the bars are fixed, available working space and requested delivery date. Junsung Industry will review product suitability, price and delivery requirements through the contact form or by phone at +82-53-581-5819.