RECOSTAL® RC coupling bar
RECOSTAL® Coupler is an effective solution for reinforcing bar connections, particularly in projects that require high strength, space efficiency, and cost-effectiveness. RECOSTAL® Coupler offers several advantages for use in concrete construction. The main advantage of the RECOSTAL® Coupler is that it enables a simple and reliable connection between reinforcement bars, making the creation of construction joints far more efficient than with traditional lapping methods. By reducing the amount of steel required for overlaps, it optimizes material use and lowers costs.
Our screw connection for reinforced concrete structures RECOSTAL® Coupler has received ETA, abG and CARES approvals.
These approvals confirm the highest quality, safety, and compliance with European and international standards—giving designers, contractors, and clients full confidence in applying RECOSTAL® Coupler to critical construction projects.
According to the ETA assessment methods, the RECOSTAL® Coupler is assumed to have a service life of at least 100 years.
The Benefits:
Efficient Joint Formation – simple, reliable, and optimized reinforcement bar connections.
Minimizes Material Waste – no long overlaps, reducing steel consumption and costs
Strength & Reliability – mechanical connections that meet or exceed rebar strength. High fatigue strengths for use in bridges, among other applications
Time Savings – faster installation, supporting quicker project progress
Durability – less congestion lowers the risk of cracking, improving long-term quality
100% power transmission
Technical approvals: abG, ETA, CARES
Available for different common rebar diameters (12 to 28mm)
No positioning couplers required
Design flexibility
RECOSTAL® Coupler threaded connections offer an optimal and secure connection in reinforced concrete construction where reinforcement steel needs to be spliced. RECOSTAL® Coupler connection is available in sizes: 12 mm - 28 mm. Other sizes are available on request. RECOSTAL® Couplers can be used in combination with many products from the DYWIDAG Concrete Technologies portfolio. RECOSTAL® Coupler connections can save time and costs, ensures a secure connection and helps conserve resources by saving reinforcement steel.
Technical data of RECOSTAL® RC-SG
Coupling bar ØS | Length coupling bar L [mm] | Coupler Length LC [mm] | Ø Outside ØC [mm] | Connection variants * |
|---|---|---|---|---|
12 | 400 | 35 | 19 | M/MM/F/FM/FF |
12 | 600 | 35 | 19 | M/MM/F/FM/FF |
12 | 730 | 35 | 19 | M/MM/F/FM/FF |
12 | 960 | 35 | 19 | M/MM/F/FM/FF |
12 | 1,350 | 35 | 19 | M/MM/F/FM/FF |
14 | 400 | 40 | 22 | M/MM/F/FM/FF |
14 | 600 | 40 | 22 | M/MM/F/FM/FF |
14 | 730 | 40 | 22 | M/MM/F/FM/FF |
14 | 960 | 40 | 22 | M/MM/F/FM/FF |
14 | 1,350 | 40 | 22 | M/MM/F/FM/FF |
16 | 400 | 45 | 25 | M/MM/F/FM/FF |
16 | 590 | 45 | 25 | M/MM/F/FM/FF |
16 | 840 | 45 | 25 | M/MM/F/FM/FF |
16 | 1,160 | 45 | 25 | M/MM/F/FM/FF |
16 | 1,650 | 45 | 25 | M/MM/F/FM/FF |
20 | 400 | 55 | 30 | FX/FXM/FXF/FFX |
20 | 730 | 55 | 30 | FX/FXM/FXF/FFX |
20 | 1,040 | 55 | 30 | FX/FXM/FXF/FFX |
20 | 1,450 | 55 | 30 | FX/FXM/FXF/FFX |
20 | 1,890 | 55 | 30 | FX/FXM/FXF/FFX |
25 | 400 | 65 | 38 | FX/FXM/FXF/FFX |
25 | 910 | 65 | 38 | FX/FXM/FXF/FFX |
25 | 1,290 | 65 | 38 | FX/FXM/FXF/FFX |
25 | 1,800 | 65 | 38 | FX/FXM/FXF/FFX |
25 | 2,360 | 65 | 38 | FX/FXM/FXF/FFX |
28 | 400 | 70 | 42 | FX/FXM/FXF/FFX |
28 | 1,020 | 70 | 42 | FX/FXM/FXF/FFX |
28 | 1,450 | 70 | 42 | FX/FXM/FXF/FFX |
28 | 2,020 | 70 | 42 | FX/FXM/FXF/FFX |
28 | 2,640 | 70 | 42 | FX/FXM/FXF/FFX |
* Abbreviations:
M - simple thread/ bar
MM - simple thread/ simple thread
F - single thread with coupler/ bar
FM - single thread with coupler/ simple thread
FF - single thread with coupler/ single thread with coupler
FX - double tread length with coupler/ bar
FXM - double thread length with coupler/ single thread
FXF - double thread length with coupler/ single thread with coupler
FFX - double thread with coupler/double thread length with coupler
Technical data of RECOSTAL® RC-SW
Coupling bar ØS | Length coupling bar L1 [mm] | Length coupling bar L2 [mm] | Coupler Length LC [mm] | Ø Outside ØC [mm] | Connection variants for L1, L2 * |
|---|---|---|---|---|---|
12 | freely selectable | freely selectable | 35 | 19 | M/F/FX |
14 | freely selectable | freely selectable | 40 | 22 | M/F/FX |
16 | freely selectable | freely selectable | 45 | 25 | M/F/FX |
20 | freely selectable | freely selectable | 55 | 30 | M/F/FX |
25 | freely selectable | freely selectable | 65 | 38 | M/F/FX |
28 | freely selectable | freely selectable | 70 | 42 | M/F/FX |
Bend angle W - freely selectable
* Abbreviations:
M - simple thread/ bar
F - single thread with coupler/ bar
FX - double tread length with coupler/ bar
Technical data of RECOSTAL® RC-SB
Coupling bar ØS | Length coupling bar L1 [mm] | Length coupling bar L2 [mm] | Length coupling bar L3 [mm] | Coupler Length LC [mm] | Coupler Ø Outside ØC [mm] | Connection variants for L1, L2 * |
|---|---|---|---|---|---|---|
12 | freely selectable | freely selectable | freely selectable | 35 | 19 | M/F/FX |
14 | freely selectable | freely selectable | freely selectable | 40 | 22 | M/F/FX |
16 | freely selectable | freely selectable | freely selectable | 45 | 25 | M/F/FX |
20 | freely selectable | freely selectable | freely selectable | 55 | 30 | M/F/FX |
25 | freely selectable | freely selectable | freely selectable | 65 | 38 | M/F/FX |
28 | freely selectable | freely selectable | freely selectable | 70 | 42 | M/F/FX |
* Abbreviations:
M - simple thread/ bar
F - single thread with coupler/ bar
FX - double tread length with coupler/ bar
Technical data of RECOSTAL® RC-SK
Coupling bar ØS | Length coupling bar L1 [mm] | Length coupling bar L2 [mm] | Length coupling bar L3 [mm] | Total length Lges [mm] | Coupler Length LC [mm] | Coupler Ø Outside ØC [mm] | Connection variants for L1, L2 * |
|---|---|---|---|---|---|---|---|
12 | freely selectable | freely selectable | freely selectable | freely selectable | 35 | 19 | M/F/FX |
14 | freely selectable | freely selectable | freely selectable | freely selectable | 40 | 22 | M/F/FX |
16 | freely selectable | freely selectable | freely selectable | freely selectable | 45 | 25 | M/F/FX |
20 | freely selectable | freely selectable | freely selectable | freely selectable | 55 | 30 | M/F/FX |
25 | freely selectable | freely selectable | freely selectable | freely selectable | 65 | 38 | M/F/FX |
28 | freely selectable | freely selectable | freely selectable | freely selectable | 70 | 42 | M/F/FX |
* Abbreviations:
M - simple thread/ bar
F - single thread with coupler/ bar
FX - double tread length with coupler/ bar
