TIE ROD & THREAD BAR SYSTEM
( อุปกรณ์ยึดแบบไทรอท )

Dywidag Hot Rolled Tie Bars

Dywidag tie bars are discontinuously threaded rebars.  It is a type of hot rolled concrete tie rods. According to the sizes, there are 6# to 28# dywidag bars. Among the hot-rolled dywidag tie rod, the sizes of dw 15 and dw20 are the most popular sizes.

Wellmade’s dywidag type concrete tie rods are made from 830 and 930 steel grades.  The ultimate load of the hot-rolled dywidag bars is reaching 201KN. Thus, the Dywidag concrete tie rod is also called heavy load capacity construction rebar.

Discontinuous threaded make the concrete tie rods self-cleaning in construction after working from the concreting

Wellmade’s Cold Rolled Tie Rods

Compare to hot rolled dywidag bars, the cold-rolled concrete tie rods are threaded from a steel round bar structure. According to the steel grade, Wellmade supplies your S235, S450, and 42CrMo cold roll steel coil rods for your construction.

The different steel structure grade brings your different grade of concrete tie rods. Take D16(15/17mm) sizes for example:

  • - S235 steel grade D16 concrete tie rods ultimate test result: 95KN
  • - S450 steel grade D16 tie rod: the maximum load is 145KN

Formwork Wing Nut for Concrete Tie Rods

As formwork accessories, tie rod wing nut is used frequently. Formwork wing nuts include wing nuts without round plates and wing nuts with round plates.  If you using a wing nut without a round plate, a waler plate is applied during your concrete pour shuttering.

Assembly Of Tie Rod
Tie Rod dia.20/23 mm. DYWIDAG Thread
  • Dimension:
  • Minor Dia. : 20 mm.
  • Major Dia. : 23 mm.
  • Standard length 6.0 m.
  • Length cut to order
  • Material:
  • High Strength Steel
  • Yield load : 278 kN
  • Ultimate load: 339 kN (Cold Rolled)
Wing nut Base 35 mm(For Tie Rod dia.15/17 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 15 mm.
  • Hexagonal : 27 mm.
  • Base Dia. : 35 mm.
  • Wing width: 110 mm.
  • Material:
  • Cast Iron: FCD 45
  • Ultimate load: 180 kN
Wing nut Base 60 mm(For Tie Rod dia.15/17 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 15 mm.
  • Hexagonal : 27 mm.
  • Base Dia. : 60 mm.
  • Wing width: 110 mm.
  • Material:
  • Cast Iron: FCD 45
  • Ultimate load: 180 kN
Wing nut Base 100 mm(For Tie Rod dia.15/17 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 15 mm.
  • Hexagonal : 27 mm.
  • Base Dia. : 100 mm.
  • Material:
  • Cast Iron: FCD 45
  • Ultimate load: 180 kN
Wing nut d20(For Tie Rod dia. 20/23 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 20/23 mm.
  • Hexagonal : 38 mm.
  • Base Dia. : 45/110 mm.
  • Material:
  • Cast Iron: FCD 45
  • Ultimate load: 339 kN
Watertight Coupling(For Tie Rod dia.15/17 mm.) Standard self finished Galvanized is optional
  • Dimension:
  • Length : 115 mm.
  • Outer Dia.: 36 mm.
  • Material:
  • Cast Iron: FCD 45
  • Ultimate load: 180 kN
Yellow Zinc Steel Cone DYWIDAG Thread(For Tie Rod dia. 15/17 mm.)
  • Dimension:
  • Minor Dia. : 75 mm. Conical Shape, centre wall alignment
  • Material:
  • Carbon Steel
  • Zinc Coated
  • Ultimate load: 150 kN
Plastic cap/pvc cone(For Tie Rod dia. 15/17 mm.)
  • Dimension:
  • Length : 32 mm.
  • Inside Dia. : 22 mm.
  • Base Dia. : 40 mm.
  • Material:
  • Polyvinylchloride
Spring Clip / Wedge Clamp(For Tie Rod dia. 15/17 mm.)
  • Dimension:
  • Designed for lock rebar by compressed spring for rebar Dia. 6mm., 9mm. and 12mm.
  • Material:
  • Harden Steel With high durable spring. Paint or Zinc coated
Hex Nut D15(For Tie Rod dia. 15/17 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 15 mm.
  • Hexagonal : 27 mm.
  • Length : 40 mm.
  • Material:
  • Polyvinylchloride
  • Ultimate load: 190 kN
Waldable Nut D15(For Tie Rod dia. 15/17 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 15 mm.
  • Hexagonal : 27 mm.
  • Length : 40 mm.
  • Material:
  • Polyvinylchloride
  • Ultimate load: 190 kN
Coupling D15(For Tie Rod dia. 15/17 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 15 mm.
  • OD : 30 mm.
  • Length : 90 mm.
  • Material:
  • Carbon Steel Waldable
  • Ultimate load: 190 kN
Coupling D20(For Tie Rod dia. 20/23 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 20/23 mm.
  • Hexagonal : 36 mm.
  • Length : 142 mm.
  • Material:
  • Carbon Steel Waldable
  • Ultimate load: 339 kN
Spherical Nut D20(For Tie Rod dia. 20/23 mm.)Standard self finished Galvanized is optional
  • Dimension:
  • Minor Dia. : 20/23 mm.
  • Hexagonal : 35 mm.
  • OD : 42 mm.
  • Material:
  • Cast Iron: FCD 45
  • Ultimate load: 339 kN

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