KÖCO (Köster & Co)

Al Naesar Trading is the sole distributor and service provider of KÖCO brand stud welding equipments, accessories and consumables from Koster & Co., Germany in the UAE.

A large inventory of equipment, shear connectors, threaded studs and accessories in Dubai has made Al Naesar Trading the preferred source of stud welding services across the UAE. Dedicated sales personnel and efficient support services ensure uninterrupted operations for our clients.

Stud Welding Equipment

We stock the following series of stud welding equipment:
  • ELOTOP
  • KST
  • Inverter
All other models can be made available within 15 days for delivery.

Drawn Arc Welding

ELOTOP 510

Weldable stud range: 3–8 mm w/ ceramic ferrule
Max. current: 450 A
Max. time: 460 ms

ELOTOP 810

Weldable stud range: 3–12 mm  w/ ceramic ferrule 
Max. current: 800 A

Max. time: 600 ms

ELOTOP 1010

Weldable stud range: 3–14 mm  w/ ceramic ferrule

Max. current: 1100 A

Max. time: 1000 ms

ELOTOP 1710

Weldable stud range: 3–20 mm  w/ ceramic ferrule
Max. current: 1800 A
Max. time: 1500 ms

ELOTOP 2010

Weldable stud range: 3–22 mm w/ ceramic ferrule
Max. current: 2300 A
Max. time: 1500 ms

ELOTOP 3010

Weldable stud range: 6–25 mm  w/ ceramic ferrule
Max. current: 3500 A
Max. time: 2000 ms

Capacitor Discharge (CD) Welding

KST 110

Weldable stud range: 3-10 mm
Stud welding equipment with capacitor discharge

Suitable for welding steel, stainless steel, aluminium and brass

Inverter Series

Inverter 1305i

Weldable stud range: 3–16 mm
Max. current: 1300 A
Max. time: 1000 ms

Inverter 1805i

Weldable stud range: 2–19 mm
Max. current: 1600 A
Max. time : 1000 ms

Inverter 2305i

Weldable stud range: 2–25 mm
Max. current: 2300 A
Max. time setting: 1–1500 ms

Welding Studs

All KÖCO welding studs are made from materials suitable for stud welding. Standard product design and dimensions conform to DIN EN ISO 13918.

Stud Range

Shear Connectors
SD

Available in Grade S235J2+C470 or ASTM A108 

Full Threaded Stud
FD

Available in MS 4.8, SS 1.4301, SS 4571 and K800 grades

Partial Threaded Stud
PD

Available in MS 4.8, SS 1.4301, SS 4571 and K800 grades

Reduced Shaft Threaded Stud
RD

Available in MS 4.8, SS 1.4301, SS 4571 and K800 grades

MIG Internal Threaded Stud

Available in MS 4.8, SS 1.4301, SS 4571 and K800 grades

CD Insulation Pins

Our CD pins are available in these materials:
  • Stainless Steel
  • Aluminium
  • Brass
  • Copper-coated mild steel