LM-TU434L2 wire marker tube φ3.4 mm, 250 m roll – MAX drum roll

LM-TU434L2 is a white PVC marker tube with a 3.4 mm inner diameter on a 250 m roll, used to print wire numbers and text in control panels. The tube is printed and half-cut continuously on MAX LETATWIN printers (LM-550A3, LM-3000PRO); the markers stay joined in sequence and the wireman snaps each one off and slides it onto the wire before crimping.

The φ3.4 mm size suits flexible copper wire of about 0.75 – 1.5 mm² (reference). It grips the insulation so it does not slide off when wires are pulled; for thick-insulation wire (heat-resistant, flame-retardant) test a few pieces first and go up one size if tight.

Long PVC tube supplied in a drum-roll box: the tube feeds smoothly into the printer, so long batches run unattended with less twisting. 70 – 250 m per roll depending on size, fewer roll changes in volume production.

TOVINA is the authorised MAX distributor in Vietnam, stocking LETATWIN tubes, ribbons and tapes and servicing the printers. Samples and size advice: +84 0917 399 279. See all wire marking tubes.

Product videos

MAX L tube features

• Long PVC tube supplied in a drum-roll box: the tube feeds smoothly into the printer, so long batches run unattended with less twisting.
• 70 – 250 m per roll depending on size, fewer roll changes in volume production.
• L tubes are not UL recognised; choose N2 tubes when UL is required.

Printers and settings for φ3.4 mm tube

• Compatible printers: LM-550A3, LM-3000PRO.
• Select the TUBE material and size on the printer and set the cut-depth lever to TUBE for a half-cut that snaps by hand.
• Feed the tube under the holder with 1 – 2 cm protruding; it must unwind freely from the roll, untwisted and free of oil.
• Below about 15 °C PVC stiffens and print may fade: use low-temperature (slow) mode or the tube heater and raise print density.
• Step-by-step loading with videos: User guide.

Tube size by wire cross-section (MAX guide)

• 0.5 mm² (AWG20): φ2.5 / 2.7 mm.
• 0.75 – 1.25 mm² (AWG18 – 16): φ2.7 / 3.2 mm.
• 2.0 mm² (AWG14): φ3.4 / 3.6 mm.
• 3.5 mm² (AWG12): φ4.2 / 5.2 mm.
• 5.5 mm² (AWG10): φ5.2 / 6.4 mm.
• 8.0 mm² (AWG8): φ6.4 / 8.0 mm; 14 mm² (AWG6): from φ8.0 mm.
• The table is a guide only; measure the actual wire outer diameter with a caliper before ordering.

MAX L tube sizes at TOVINA

• LM-TU425L2 — φ2.5 mm — 250 m roll — wire 0.5 – 0.75 mm²
• LM-TU427L2 — φ2.7 mm — 250 m roll — wire 0.5 – 0.75 mm²
• LM-TU432L2 — φ3.2 mm — 250 m roll — wire 0.5 – 1.5 mm²
• LM-TU434L2 — φ3.4 mm — 250 m roll — wire 0.75 – 1.5 mm²
• LM-TU436L2 — φ3.6 mm — 250 m roll — wire 1.5 – 2.5 mm²
• LM-TU442L — φ4.2 mm — 200 m roll — wire 2.5 – 4.0 mm²
• LM-TU452L — φ5.2 mm — 135 m roll — wire 4.0 – 6.0 mm²
• LM-TU464L — φ6.4 mm — 100 m roll — wire 6.0 – 10 mm²
• LM-TU480L — φ8.0 mm — 70 m roll — wire 10 – 16 mm²

FAQ

• Which wire does LM-TU434L2 fit? About 0.75 – 1.5 mm² for standard flexible copper wire; test samples for thick insulation.
• How many markers per roll? At 20 mm pitch, a 250 m roll gives about 12,500 markers (less loading waste).
• Which ribbon? Black LM-IR50B on LM-550 printers; LM-3000PRO uses LM-IR3015B.
• How does it differ from the TOVINA tube of the same size? MAX tube is made in Japan and supplied in a long drum roll; TOVINA tube costs less and suits panels that do not require UL.