NMB Splice Sleeve

Full-Grout Mechanical Coupler for Precast concrete and Cast-In-Place Construction.
Proven and tested on seismic resistance. Emulates CIP’s homogenous connection of rebars.

NMB Splice Sleeve System | Precast Concrete & Cast-In-Place Construction

Developed in the late 60s in Hawaii USA, engineered in Japan and renowned worldwide.

The first and only SA Class grout filled mechanical connector approved by BCJ (Building Center of Japan). SA Class is equivalent to Type 2 coupler approved by ICC-ES in the United States.

Nearly 40 million sleeves used worldwide for 40 years with no single fatality.

In March 2011, all building using NMB Splice Sleeve in Tohoku area withstood the 9.0 Richter scale earthquake that shocked this area without any structural damage.

All buildings with NMB Splice Sleeve withstood the Kobe-Osaka 7.9 Richter scale earthquake in 1995 without any structural damage.


No structures with NMB Splice Sleeve were damaged in Guam in 1993 in the 8.2 Richter scale earthquake.

NMB Splice Sleeve contributes to high performance, high quality, durability, earthquake-resistance, fast construction, material and labor efficiency which equates to economic savings in your project’s total cost of ownership.

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