Infrared Heat Shrink Oven for Wire Harness Sections up to Ø100 mm WM-664

Name: Infrared Heat Shrink Oven for Wire Harness Sections up to Ø100 mm WM-664
Brand: Wiromac
SKU: WM-664

CE Certified HS Code 8419.89

The WM-664 shrinks tube and heat-cures coverings on a clamped section of wire harness inside a semicircular infrared chamber. Eight 300 W radiant tubes — 2,400 W of infrared in total — surround the workpiece, heating it from all sides at once without an air blast that could shift a positioned sleeve. The chamber accepts an inlet up to Ø120 mm and heats a zone of Ø100 mm across a 130 mm length. A toggle-clamp stage on an adjustable slide positions every harness identically, and total draw stays under 2.8 kW on a grounded 220 V, 50 Hz supply.

Specifications

Function	Infrared heat shrinking and heat curing of harness sections
Heating inlet diameter	< 120 mm
Heating length	< 130 mm
Heating diameter	< 100 mm
Heating tubes	Infrared radiant tube, 300 W × 8 = 2,400 W
Machine power	< 2.8 kW
Power supply	220 V, 50 Hz
Safety	Ground wire
HS Code	8419.89 (common reference — final classification confirmed by your customs broker)
Certification	CE (certificate provided with shipment)

Key features

Radiant infrared surrounds the clamped section, so shrink sleeves and moulded parts take heat from all sides at once — no hot-air jet to blow a positioned sleeve off its mark
Toggle-clamp stage on an adjustable cross slide holds every harness at the same height and depth, so piece after piece shrinks at the same distance from the tubes
Eight 300 W radiant tubes behind a polished reflector concentrate 2,400 W into the Ø100 × 130 mm zone, keeping cycle times short even on thick bundles
Separate control cabinet with a digital temperature controller keeps the electronics away from the heat and wires the whole station to a grounded 220 V supply

What it processes

Shrinking thick-wall and adhesive-lined tube over harness splices and transition boots
Heat-shrinking marker and insulation sleeves at a fixed position on grounding and battery cables
Curing heat-activated tape, boots and coverings on a clamped harness section

Suited for: repeatable shrinking and curing on a fixed zone of a harness — splice covers, adhesive-lined tube, marker sleeves on earth and battery cables — where the section fits within Ø100 mm and 130 mm of heated length. Not suited for: continuous runs, whole-harness heating or bundles above the Ø120 mm inlet — for continuous belt-fed shrinking of sleeves under Ø10 mm, pick the WM-666 crawler belt tunnel oven; for oversize bundles and whole-harness ovens, custom sourcing is the door — tell us your spec, sourcing unusual machines is what we do.

Send us a sample harness with the exact tube you use — we clamp it, shrink it on camera and mail it back, so you inspect the result on your own cable before you order.

Engineering knowledge

Choose and troubleshoot this process

Heat Shrink Defects: Causes and Corrective ActionsTroubleshoot incomplete recovery, wrinkles, splits, scorching, sleeve movement, trapped air, uneven adhesive flow and heat damage.
How to Choose Heat Shrink Processing EquipmentChoose heat shrink equipment by sleeve material, recovered dimensions, adhesive requirement, harness geometry, heating method, takt time and validation plan.

Neither machine quite fits? New configurations reach our application engineers before they reach the catalog. Tell us your material and process; we will confirm what we manufacture and support, then recommend the right configuration. Get a tailored recommendation →

WM-664 — common questions

Why infrared instead of hot air for this job?

A clamped harness section sits still while eight radiant tubes heat it from all directions at once, so the sleeve shrinks evenly without being rotated and without an air stream pushing it out of position. Hot air suits hand-presented cable ends — a fixed zone on a heavy bundle is where radiant heat wins.

How is the harness held during heating?

On a wooden-faced stage with a toggle clamp, mounted on an adjustable slide. You set the stage height and depth once for a given harness, and every following piece clamps into exactly the same spot in the chamber — that is what makes the shrink result repeatable across a batch.

What sizes and jobs are outside its range?

It heats one clamped zone up to Ø100 mm and 130 mm long, with an inlet limit of Ø120 mm — it is not a tunnel oven for continuous runs, and it does not process the whole harness at once. For belt-fed shrinking of harness ends and hand-presented work, see the other heat shrink processing machines.