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Heat Sealing Bands

Techbelt is a UK manufacturer of rotary heat sealing bands for continuous band sealing machines. Our bands are made in-house from premium-grade PTFE coated glass cloth at our West Yorkshire facility, and are proven for durability under continuous production use.

How Our Heat Sealing Bands Are Made
Our bands are constructed by laminating two layers of PTFE coated glass cloth, typically 0.08mm per layer. The layers are offset or stepped during production so that when the ends are joined, the joint area is virtually the same thickness as the rest of the band — critical for even heat transfer during sealing. A joint that is too thick can cause heat transfer issues and poor seal quality. Every laminate order is made to a specified works drawing to ensure the correct thickness is achieved consistently. Standard sleeves are 300mm wide, cut to length and then slit to width — typical widths range from 12mm to 30mm. Custom sizes and widths are available on request.

We manufacturer our Heat sealing bands in house at our 20,000s.q ft UK facility.

Material Options
Techbelt offers three band constructions to suit different duty cycles:

Tefsil 3 — brown, the standard and most cost-effective option, suited to general production use.
Tefsil 3 Bronze — a modified surface for extended service life over standard bands, for higher-cycle or more demanding lines.
Techlam Pro-150 — our premium 2-ply laminate band, for the highest-duty applications.

Grade	Thickness	Coated Weight	Tensile Strength (N/5cm)	Temperature Range	PTFE Content
Tefsil 3	0.08mm	150 g/m²	650 (warp) / 550 (weft)	-72°C to +260°C	68%
Tefsil 3 Bronze	0.08mm	155 g/m²	800	-73°C to +260°C	68%
Tefsil 5	0.125mm	255 g/m²	1170 (warp) / 1072 (weft)	-72°C to +260°C	59%
Tefsil 5 Bronze	0.125mm	255 g/m²	1200	-73°C to +260°C	58%
Tefsil 6	0.15mm	305 g/m²	270 (warp) / 240 (weft)	-72°C to +260°C	66%
Tefsil 10	0.25mm	490 g/m²	2100 (warp)	-72°C to +260°C	67%
Techlam Pro-150	0.152mm	288.2 g/m²	919	Continuous use to +260°C	53%

Examples of the machines our bands can be made to fit:

OEM Part #	Machine Model
004-05013	CBS
006-05014	CBS-AT
006-05018	CBS-AT
014-05007	PHS-C
014-05008	PHS-C
016-00089	BS-C
016-00090	BS-C
018-00150	BD
018-00151	BD
004-05011	CBS
004-05012	CBS
004-30420	CBS
004-30420	CBS
006-05015	CBS-AT
006-05015	CBS-AT
004-31599	CBS-AT
004-30421	CBS-AT
008-05019	CBS-CH-B
008-05028	CBS-CH-B
037-05023	CBS-B
037-05024	CBS-B
008-05027	CBS-CHA
008-05028	CBS-CHA
037-05025	CBS-BA
037-05026	CBS-BA
042-00147	CBS-CH
042-15029	CBS-CH
011-07654	CAP
011-07653	CAP

What's the difference between Tefsil 3 and Tefsil 3 Bronze?

Tefsil 3 is our standard, most cost-effective band material — brown in colour and suited to general production use. Tefsil 3 Bronze has a modified surface that’s proven to extend service life over the standard band, making it a better fit for higher-cycle or more demanding production lines. Both are custom made in-house at our UK facility.

How do I know what size band I need?

The easiest way is to send us your existing band, or the OEM part number and machine model, and our Technical Sales team will confirm the correct size and specification. If you don’t have either, we can usually work from the machine model alone using our compatibility records.

Can you match a band if I don't have the original part number?

Yes. Sending a sample of your existing band lets us take direct measurements and match it exactly, even without a part number or machine model to hand.

Do you supply the premium Techlam Pro-150 laminate?

Yes — Techlam Pro-150 is our premium 2-ply laminate band, built for the highest-duty applications. Contact our Technical Sales team for pricing and lead times.

Are your bands genuine OEM parts?

No — our bands are not genuine OEM parts. We reference machine brand names only to indicate the machine type our bands are designed to fit.

Why Techbelt
Every band is custom made in-house at our UK facility, with no minimum order restrictions on standard sizes. Technical Sales can quote against your existing band, a sample, or your machine model and part number.

Browse our full range of rotary heat sealing bands — including Tefsil 3, Tefsil 3 Bronze and premium Techlam Pro-150 laminate — in the Rotary Heat Sealing Bands category.

Need a price or have a non-standard size? Contact our Technical Sales team on 01422 366386 or email sales@techbelt.com.

OEM disclaimer
Please note: our bands are not genuine OEM parts. Where we reference a machine brand name, this is only to indicate the machine type our bands are designed to fit.