Heat Shrink Tube Printing, Inserting and Shrinking Machine WM-669

The WM-669 slides a cut shrink tube onto the wire, prints the legend on it and shrinks it in place — inserting, marking and heating combined into a 2.5-second cycle. It takes tube of Φ2.0 mm/Φ6.0 mm diameter, heats a 6 – 35 mm zone selected by fixture, and holds any shrink temperature from 0 to 380 °C under thermostat control. A built-in printing unit marks the sleeve before it shrinks, the 12-inch multi-point capacitive screen runs an English-language interface, and PLC plus IPC control sequence the cell with forced air cooling for continuous duty.

Specifications

Key features

• Inserting, marking and shrinking collapse three hand operations into one 2.5-second machine cycle
• The legend prints before shrinking; verify the legibility and durability of markings such as 220V-AC on your actual sleeve after the shrink cycle
• Thermostat control from 0 to 380 °C lets you dial heat to the tube material instead of guessing at a fixed nozzle
• 12-inch multi-point capacitive screen with an English-language interface keeps counts, cycle data and settings at the front panel

What it processes

• Voltage and circuit identification sleeves on appliance and power-supply leads
• Wire ends that need an insulated, labeled shrink joint straight off the cutting line
• Panel and switchgear wiring where every conductor carries a printed sleeve marker

Suited for: printed identification sleeves shrunk onto wire ends — tube in the Φ2.0/Φ6.0 mm class, 6–35 mm shrink zones, one marked and shrunk piece every 2.5 seconds. For other jobs and machine options: tube above the Φ6.0 mm class, or laser marking with no ink/ribbon — laser mark–insert–shrink on Φ2.0/Φ10 tube (8–45 mm) is the WM-673 (or WM-673B as an alternate build); the Φ2.0/Φ6.5, 8–40 mm laser sibling is the WM-671JG. Insert-and-heat without marking, Φ2.0 to Φ8.0 mm, is the WM-663 heat shrink tube inserting and heating machine, 800–2,500 pcs/h. For shrinking whole harness sections rather than wire ends, the WM-664 infrared harness heat shrink oven takes sections up to Ø100 mm.

Marking layout, sleeve length and shrink finish are easiest to judge on your own parts: send 2–3 meters of your wire with your tube size and legend text, and we run the job on this machine on video before you commit.

The listed air pressure is 5.5/6.5 KPa; confirm the required pressure and unit on the quote before installation. The 2.5-second machine cycle is distinct from sustained accepted output including loading and handling. For a WM-669 quote, share the sleeve size and the approximate dimensions of the part it covers. We’ll check which configuration fits your assembly.