Radiator & coolerrestoration and fabrication
Water, oil and air radiators, intercoolers and heat exchangers. Restoration and recoring of existing units, new engineered solutions and custom builds for construction machinery, industry, agriculture, classic cars and marine applications.

machinery







Custom radiator fabrication
Design and fabrication of water, oil and air radiators, heat exchangers and special cooling solutions to technical specification. 3D CAD, prototyping, TIG welding of aluminium and machining for demanding industrial and one-off applications.
Radiator restoration
Complete restoration: dismantling, sandblasting, recoring with a new core, pressure testing and a final coat in the RAL shade of your choice. Full function and capacity restored, even when the original spare part is no longer available.
About the workshop
// SINCE 1977 · TRBOVLJEIt started in 1977 in Trbovlje, Slovenia, as a motor vehicle service. From there my father Igor built his own trade, and in 1994 the workshop, then called Akviz, went into full operation. Radiator restoration and recoring for cars and trucks. Every piece by hand, every measurement checked.
In 2006 his son Aleks took over. The core stayed the same: a radiator that cools again the way it should. Everything else grew.
Classic cars hold a special place. When nothing is left on the shelf for a fifty year old machine, the only way is to understand the original and build it again. Copper, brass, aluminium, to original dimensions. Many radiators that leave this workshop are older than the workshop itself.
Today, besides our core work, restoring and recoring radiators for tractors and agricultural machinery, construction and work machines, trucks and cars, boats and industrial systems, we also build complete units from scratch.
Water, oil and air radiators, built from the ground up. From concept and 3D design, through laser cutting, CNC bending and machining, to TIG welding of aluminium and the finished piece in hand. When a machine overheats and there is no solution, we make one.
The workshop is in Trbovlje, Slovenia. We work for customers across Slovenia and abroad, and ship radiators throughout Europe.
Two generations, one approach, one piece at a time, all the way.
What we do
// SHEET 02 — 06 UNITSAutomotive
Water radiators, intercoolers, oil coolers.
TEST 2-16+ BAR
Agriculture
Tractor and combine radiators, core rebuilds.
Marine
Heat exchangers built for Adriatic conditions.
Construction
Combined cooling packs for harsh environments.
Classic cars
Radiator restoration to original spec for collectors.
Custom
TIG, turning, 3D CAD and prototypes.
From the workshop
// DOSSIER · PROJECTSKiler: the Slovenian workshop word for a radiator

Custom oil cooler for a wood chipper mill

Mercedes-Benz SL R107 radiator restoration

Radiator restoration: 1964 John Deere tractor

Process
// SHEET 04 — 5 STEPSDiagnosis / agreement / idea
Material prep / engineering
Restoration / fabrication
Pressure tests 2 to 16+ bar
Finish & RAL paint
Got a radiator to restore
or an idea to build?
Send a photo or a sketch. We take a look and get back to you with an estimate.
Behind every cooler — a craftsman. 👓