SINCE 1981 · CHEONAN · ASAN · GIMHAE
Korea's first upset-thread rebar splice, HS-BAR
Since 1981 Hansung Precision has manufactured mechanical rebar couplers, shop-fabricated reinforcing steel and tunnel ground-support materials, backing precise and safe construction on building and civil sites across Korea.
BUSINESS
Three businesses, one goal —
precise, safe construction
We splice rebar, fabricate it and produce the materials that hold the ground — all in-house. Send us the design specification and we deliver the right material together with its test certificates.
01 / REBAR SPLICING
HS-BAR mechanical rebar couplers
Bar ends are upset-forged, roll-threaded and joined with a coupler. D13–D51, U/UH field-assembly types, PC, welding and terminator couplers.
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02 / REBAR FABRICATION
Shop-drawing based rebar fabrication
Cutting, bending and coil-processing lines with 10,000 t/month stockyard capacity. Less rebar loss, shorter schedules, no on-site yard needed.
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03 / TUNNEL & GROUND SUPPORT
Rock bolts · HS steel fibre · removable soil nailing
KS-certified rock bolts and accessories for NATM tunnels, steel fibre for concrete reinforcement, and materials for the Removable Soil Nailing method (New Technology No. 257).
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Products
Forming pipes and other items are made to order. Please use the contact page for specifications.
ABOUT US
45 years built on
our customers' trust
Founded in 1981, Hansung Precision produces mechanical rebar splices, rock bolts for tunnel rock support and steel fibre for concrete reinforcement to make building and civil works safer. Our engineers developed HS-BAR, Korea's first upset-forged, roll-threaded rebar splice, saving reinforcing steel while improving workability and precision.
- Founded
- 22 December 1981
- CEO
- In Hwan Roh
- Plants
- Cheonan HQ plant · Asan plant 2 · Gimhae plant 3
- Business
- Mechanical rebar couplers · rebar fabrication · tunnel materials (rock bolts, steel fibre, soil nailing)
WHY HS-BAR
Why mechanical splicing
instead of lap splices
Developed to meet the demands of large reinforced-concrete structures and seismic design, mechanical splicing is now used widely on civil and building sites. Because HS-BAR upsets the bar end before rolling the thread, the bar's mechanical properties are unaffected.
01Safety
- Better bar spacing than lap splices, easier concrete placement
- Tensile/compressive strength ≥ 125% of parent-bar yield strength
- Bar stress centres stay on one axis — structurally sound
02Economy
- Eliminates the steel lost to lap lengths
- Bars are pre-fabricated to order — no secondary site work
- Faster assembly cuts labour cost and schedule
03Constructability
- Ideal for high-rise, Top-Down, ILM and Pre-Fab methods
- Suits difficult multi-stage pours
- Visual inspection during assembly — precise work, easy checks
PROJECTS
Quality proven on site
HS-BAR couplers have been supplied to major Korean civil and building projects including the Seohae Line double-track railway (sections 1–9), Saemangeum North–South Road section 3, the Anseong–Guri Expressway and SK hynix semiconductor fabs.
