Bench-Mount Hot Air Heat Shrink Machine with Through-Table Air Outlet WM-667ZM

Name: Bench-Mount Hot Air Heat Shrink Machine with Through-Table Air Outlet WM-667ZM
Brand: Wiromac
SKU: WM-667ZM

CE Certified HS Code 8419.89

The WM-667ZM builds heat shrinking into the workbench itself. The 3 kW resistance-wire heater and 50 W centrifugal fan mount under the table and blow temperature-controlled air up through an outlet flush with the work surface, so the operator shrinks tube by passing the harness over the nozzle with both hands still on the part. Standard circular outlets of Ø25 mm and Ø50 mm suit harnesses up to Ø25 mm. Outlet air reaches around 480 °C, held to ±3 °C, at only 42 dB. Total power is 3.05 kW on 220 V, 50 Hz; net weight is 19 kg.

Specifications

Function	Hot-air heat shrinking at a through-table air outlet
Whole machine power	3.05 kW
Heating method	Resistance wire heating, 3 kW — life > 10,000 h (below 350 °C)
Outlet temperature	~480 °C (spatial temperature at outlet)
Safe operating temperature	< 395 °C
Temperature control accuracy	± 3 °C
Air outlets	Circular Ø25 mm and Ø50 mm, single outlet (standard)
Suggested harness diameter	< 25 mm
Temperature control	Digital display with solid-state relay and intelligent temperature control meter standard — LCD controller and RS-485 interface optional
Centrifugal fan	50 W, air volume 198 m³/h, wind pressure 298 Pa
Noise	42 dB
Insulation design	Double-layer insulation
Safety	PE safety grade, anti-scalding cover on the outlet
Power supply	220 V, 50 Hz
Net weight	19 kg
Packaging	910 × 580 × 880 mm, wooden box
HS Code	8419.89 (common reference — final classification confirmed by your customs broker)
Certification	CE (certificate provided with shipment)

Key features

The air outlet sits flush in the bench, so shrinking becomes one more move at the assembly table — no gun to pick up, no separate heat station to walk to
Both hands stay on the harness while the joint sweeps across the rising hot air, which keeps printed marker sleeves exactly where the drawing says they belong
Solid-state temperature control holds the set point to ±3 °C under a 395 °C safety ceiling, and the anti-scald cover keeps fingers off the hot metalwork around the outlet
At 42 dB the station disappears into normal line noise, and the under-table layout adds zero floor space to the cell

What it processes

Shrinking terminal insulation sleeves on harness ends right at the assembly board
Marker sleeve and splice-cover shrinking on harnesses up to Ø25 mm
Bench cells where one operator alternates taping, plugging and shrinking without changing stations

Suited for: harness assembly tables where shrinking happens between other hand operations — terminal sleeves, marker sleeves and splice covers on bundles up to Ø25 mm, with the temperature fixed by the controller and both hands free on the part. Not suited for: thick bundles, fixed large-diameter sections or continuous conveyor work — for harness sections up to Ø100 mm, pick the WM-664 infrared heat shrink oven, and for conveyor-fed sleeve volume the WM-666 crawler belt tunnel oven — the fixed-station and inline complements to this bench unit.

Send us a bundle of your wires with the exact shrink tube you use — we shrink them over this outlet on camera and mail the finished samples back, so you judge the result on your own parts 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-667ZM — common questions

How is this better than a heat gun lying on the bench?

A gun occupies one hand and delivers whatever distance and angle the operator happens to hold. Here the air column rises from a fixed outlet at a controller-held temperature, both hands guide the part, and every operator on the line produces the same shrink finish — the skill moves from the wrist into the settings.

What harness and tube sizes does it handle?

The suggested harness diameter is under 25 mm, with Ø25 mm and Ø50 mm circular outlets supplied as standard. Longer sleeves are shrunk by drawing the section steadily across the outlet, so sleeve length is limited by the operator's sweep, not by a chamber size.

What is it not designed to do?

Thick bundles and jobs needing all-round simultaneous heat — a rising air column heats what passes over it, so bundles above roughly Ø25 mm or fixed 100 mm-class sections shrink better in the infrared oven among the heat shrink processing machines. It is also a bench tool, not a conveyor tunnel for continuous production.