Zipper chain S20 ALPHA

About this item

ALPHA S20 coil zipper: 39 ±1 mm tape width and 8 mm chain width. Luggage, backpacks, tents, covers, sails, upholstery and tarpaulins made from thick materials; select the execution for the assembly.

Item identity

Use SKU s20 and item number 270 in the enquiry. Category: Sewing accessories / Zippers / spiral fasteners / Tramp lightning.

ALPHA S20: construction and applications

ALPHA S20 coil zipper: 39 ±1 mm tape width and 8 mm chain width. Luggage, backpacks, tents, covers, sails, upholstery and tarpaulins made from thick materials; select the execution for the assembly. The 2018 standard slider reference is 144, 220. Tape colour, slider and end configuration are separate ordering parameters.

Selecting the required execution

Tape width is the full textile width, while coil or tooth width refers to the closed chain. Specify the model, length, end configuration, tape colour and slider code. Equal nominal size does not guarantee slider compatibility between different series.

Colours and configuration availability

Select from the ALPHA colour card and a physical tape sample. The general manufacturer palette does not establish availability of every shade for every model. The 2018 catalogue data is identified by source date. Current website puller lists may differ; a manager will confirm the required combination. Select the shade using a physical sample, not a screen image alone.

Family decoration options

The coil family includes decorative silver, gold, dark nickel and rose-gold coil finishes; these are not automatically part of the standard execution.

Pullers and custom decoration

The catalogue describes laser engraving on CNK, SCN, OKS, PAT, NFR, MOS and MBL finishes, pad printing on plastic and metal, raised or recessed cast logos, plastic shapes 301/305/350 and flexible gel pullers. NOMEKS and SATYNA tapes are also shown at family level, without blanket model compatibility. Confirm compatibility, quantities and availability; the NOMEKS name alone does not certify the finished product as flame resistant.

Order ALPHA S20 from DELIM

Add the product to your enquiry and specify model, length, colour or colour code, slider, end configuration and quantity. Request continuous chain by length and finished zippers by piece count. A manager will confirm stock, price, minimum order and lead time.

Key parameters

Product group: Tramp lightning
Format: Zipper chain by the metre
Tape material: 100% polyester
Teeth / coil material: Polyester 100%
Slider materials (catalogue): alloy ZnAl Z410
Construction: Coil zipper
Manufacturer: ALPHA TECHNOLOGY
Manufacturer model: S20
Tape width: 39 ±1 mm
Coil / tooth width: 8 mm
Chain material: 100% polyester

Verified specifications

Closed coil width: 8 mm
Total tape width: 39 ± 1 mm
Standard slider, 2018 catalogue: 144, 220
Slider / puller materials: ZnAl Z410 / PVC
End configurations, 2018 catalogue: T — continuous chain without factory end stops; S — closed-end, one slider; Sx2 — closed-end, two sliders facing head to head; R — separating
Catalogue load class: very heavy; qualitative classification, not a working load limit
Tape colours: Select from the ALPHA colour card and a physical tape sample. The general manufacturer palette does not establish availability of every shade for every model.
End-component materials: Aluminium / ZnAl
Decorative pullers, 2018 catalogue: 3, 10, 15, 20, 69, 88, 100, 117, 174, 175, 202, 205, 222, 301, 303, 304, 305
Special sliders, 2018 catalogue: 20144: double-sided; 144: reverse
Catalogue length tolerances: Up to 25 cm: ±0.5 cm; 26–100 cm: ±1 cm; 101–500 cm: ±1%; 501 cm and above: ±5 cm. These are tolerances, not a list of available lengths.
Crosswise strength of the closed chain: 60/130 kg: standard requirement / ALPHA value; original manufacturer force notation, not a supported mass
Separating connector attachment: 15/24 kg: standard requirement / ALPHA value; original manufacturer force notation, not a supported mass
Closed-end stop strength: 12/12 kg: standard requirement / ALPHA value; original manufacturer force notation, not a supported mass
Separating end strength: 15/24 kg: standard requirement / ALPHA value; original manufacturer force notation, not a supported mass
Top-stop attachment: 15/28 kg: standard requirement / ALPHA value; original manufacturer force notation, not a supported mass
Puller attachment: 25/50 kg: standard requirement / ALPHA value; original manufacturer force notation, not a supported mass
Colour codes in DELIM item records: 110601, 160639, 161712, 163815, 171045, 171320, 171723, 175102, 180820, 180920, 190309, 190508, 190515, 191230, 191726, 191763, 194005, 194057, 194227, 195411, 195914. Recorded executions; this is not a stock availability statement.
Standard website pullers, 24 September 2026: 144, 220
Decorative website pullers, 24 September 2026: 003, 010, 015, 020, 069, 088, 117, 174, 175, 202, 205, 301, 303, 304, 305
Website end configurations, 24 September 2026: T, S, R
Website slider finish codes: CNK, LAK, MBL, MDZ, MOS, NFR, NIK, OKS, PAT, SCN
Slider finishes, 2018 catalogue: CNK dark nickel; LAK lacquer; MBL polished brass; MOS brass; NFR nickel free; OKS oxide; PAT patina; SCN antique tin; MDZ copper. General palette; confirm compatibility with the model.
Material: Polyester
Size: 8 mm

Technical documents and drawings

Applications and compatibility

For mattresses.
For sleeping bags.
For pillows.
Luggage, backpacks, tents, covers, sails, upholstery and tarpaulins made from thick materials; select the execution for the assembly.
Use compatible ALPHA sliders, chain and end components. Validate the sample in your own assembly before specifying production.