instagram facebook gototop

rebar dooha

High Quality,
Cost-Effective,
Factory-Processed Rebar

With over 40 years of experience in processing technology, we have the capability

to produce high-quality rebar at a scale of 20,000 tons per month.
REBAR DOOHA is leading a new era of factory-processed rebar
with skilled professionals
and advanced processing facilities.

rebar dooha

Overview

Importance and Current Status
of Rebar Construction

The current social environment of rebar construction faces concerns
over poor-quality work due
to a shortage of skilled craftsmen.
Additionally, there is growing social pressure to eliminate safety accidents
and substandard construction,
while clients increasingly demand high-quality,
high-performance buildings.
As a result, the proportion of precast and factory-processed work has increased.

Current Situation of Rebar Construction

  • Non-standardized rebar drawings

  • Manual processing methods

  • Labor-intensive installation
    (rebar placement)

>
Problems

  • Increased construction costs

  • Excessive material waste

  • Reduced on-site productivity

  • Quality deterioration due to
    non-standardization

  • Decreased construction quality

>
Current Status of Rebar Construction

  • Rebar Installation Drawings
    Non-standardized drawings
    used during rebar placement

  • Factory Mechanized Processing
    Improvement in fabrication
    and assembly technology

  • Pre-assembly of Rebar
    Application of new rebar
    construction methods

Differences Between Factory-Processed
and On-Site Processed Rebar

On-Site Rebar Processing

rebar dooha

Construction delays due to work stoppages
in rainy conditions

Reduced productivity and quality issues caused by equipment degradation or aging

Increased rebar loss due to emergency processing
or lack of size-specific rebar

Additional costs for renting space or
installing temporary platforms for fabrication

Extra labor required for material storage
and power installation for processing

Additional costs for on-site rebar transportation

Factory-Processed Rebar

rebar dooha

Work conducted indoors, unaffected
by external weather conditions

Specialized rebar fabrication equipment
ensures high-quality products

Planned production and secured
size-specific rebar reduce material loss

On-site storage unnecessary due to proper factory storage and daily output management

Economic benefits from reusing
processed rebar at other sites

Direct unloading at assembly locations
reduces on-site transportation costs

PROCESS

Production Process

Workflow of Factory-Processed Rebar

  • Arrival of On-Site Rebar
    01

    Arrival of On-Site Rebar

  • Inspection of Incoming Rebar
    02

    Inspection of
    Incoming Rebar

  • Storage of Incoming Materials(Rebar)
    03

    Storage of Incoming
    Materials(Rebar)

  • Receipt of Rebar Fabrication Drawings
    04

    Receipt of Rebar Fabrication Drawings

  • Rebar Processing(Automated Cutting)
    05

    Rebar Processing
    (Automated Cutting)

  • Rebar Processing(Bending Process 1)
    06

    Rebar Processing
    (Bending Process 1)

  • Rebar Processing(Bending Process 2)
    07

    Rebar Processing
    (Bending Process 2)

  • Attachment of Labels to Processed Rebar
    08

    Attachment of Labels
    to Processed Rebar

  • Storage of Processed Rebar
    09

    Storage of Processed Rebar

  • Loading of Processed Rebar
    10

    Loading of Processed Rebar

  • Delivery of Processed Rebar to Site
    11

    Delivery of Processed Rebar to Site

EQUIPMENTS

Equipments

Location Type Model (Specification) Unit(SET) Capacity Manufacturer
인천공장 자동 절단기 TFC-L 1SET 50톤 TOYO
인천공장 자동 절단기 TFC-M 2SET 각 40톤 TOYO
인천공장 자동 절단기 LSX-16-52C 1SET 30톤 DIAMOND
인천공장 자동 절단기 BY-2-52C 3SET 각 35톤 부영산업기계
인천공장 자동 절곡기 ROBOMASTER-55 1SET 30톤 SCHNELL
shop drawing

Rebar Shop Drawing

Overview

Shop Drawings for rebar construction are divided into Placement Drawings (P/D)
and Bar Bending Lists & Schedules.
Placement Drawings are primarily used on-site for rebar assembly and placement,
while Bar Bending Lists & Schedules provide detailed specifications
for rebar bending and cutting.

shop drawing

Composition of Shop Drawings

shop drawing

Shop Drawing Preparation Process

Source: Korea Land & Housing Corporation Standard Specifications

  • >

    Project Award

    01

  • >

    Draft Shop Drawing(S/D) Preparation

    02

  • >

    S/D Review and Issue Identification

    03

    Identify potential issues anticipated
    during actual construction

  • >

    Resolution of Identified Issues

    04

    Develop solutions and decide on their applicability

  • >

    Bar List & Schedule Preparation

    05

    Rationalize shapes and dimensions
    / place factory orders based on rebar lengths

  • >

    Completion of S/D

    06

    Simplify and standardize rebar shapes

  • >

    Final Review and Approval of S/D

    07

    Review construction details and reach final agreement

  • >

    Factory Processing and
    On-Site Delivery of Rebar

    08

    Process rebar at the factory
    and deliver to site according to S/D stages

  • >

    Worker Training
    for Rebar Assembly

    09

    Train workers to assemble rebar
    according to S/D

  • >

    Rebar Assembly per Placement Drawing

    10

    Assemble rebar based on the placement drawing

  • >

    Construction Inspection and Verification

    11

  • >

    Concrete Pouring

    12

Product Features

We implement Value Engineering(V.E.) in conjunction
with DOOHA’s factory-processed rebar.

  • shop drawing
    Advantages of

    Applying Rebar Shop Drawing
    • Improved quality of fabricated rebar enhances the overall quality
      of concrete works
    • Systematic management of rebar assembly becomes easier
    • Increased construction precision improves structural quality
    • Accurate material accounting
      and systematic management
      of design information are enabled
    • Material savings contribute
      to cost-effectiveness
    • Facilitates the application of new technologies
      and construction methods
      (e.g., pre-assembly methods)

Head Office & Factory 
[27846] 9, Sangsin-gil, Jincheon-eup, Jincheon-gun, Chungcheongbuk-do, Republic of Korea
TEL   043-532-8024
FAX   070-4009-1677
E-mail   duckki@kodecoria.co.kr
Copyright ⓒ 2025 DOOHA. All Rights Reserved.
043-532-8024 09:00 - 18:00
(Closed on Saturdays, Sundays, and public holidays.)
Copyright ⓒ 2025 DOOHA.
All Rights Reserved.