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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £5.99 | 2 to 4 working days |
| Next Day | £15.54 |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £29.99 | 7 to 10 working days |
Product Number: 05148
The SIP 05148 tig collet. The SIP SR17 / SR26 Long Back Cap is manufactured for durability when in use alongside various premium-grade TIG welding torches, welders and inverters from SIP. Perfect for a range of home, trade, and professional welding applications. Replacement long back cap designed for SR17 and SR26 torches. Compatible across the sip welding, sip tig parts welding range — check product specifications for exact model fit. Also known as collet body or ceramic cup in welding supplies catalogues.
Additional Information:
The SIP SR17 / SR26 Long Back Cap is manufactured for durability when in use alongside various premium-grade TIG welding torches, welders and inverters from SIP. Perfect for a range of home, trade, and professional welding applications.About PartsForMachines:
PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| ITEM NO | 05148 |
|---|---|
| Component Type | Long Back Cap |
| Suitable For | 05008 / 05015 / 05016 / 05018 / 05029 / 05035 |
Standard Delivery: £5.99
Next Day Delivery Available
Delivery Estimate: 2 to 4 working days
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| Technical Specification | |||||
|---|---|---|---|---|---|
| PRODUCT NUMBER | 02676 | 02711 | 01062 | 08169 | 09699 |
A. The back cap seals the rear of the TIG torch body and grips the tungsten electrode. Tightening the back cap clamps the collet against the tungsten, securing it at the correct extension length and making the electrical connection through the collet.
A. The SIP 05148 is a long back cap. Short caps are used in confined spaces where a long cap would foul on surrounding surfaces. Long caps allow the tungsten to be stored inside the cap when the torch is not in use and provide a longer grip surface.
A. Replace when the cap no longer provides a gas-tight seal at the rear of the torch (detectable as bubbling in a leak test), when the threading is worn and the cap will not tighten correctly, or when the O-ring seal has deteriorated.
A. The SIP 05148 is compatible with SIP SR9/SR17-series TIG torch bodies using the corresponding thread size. Check the torch series against the back cap specification before ordering — SR17 and SR26 use different back cap thread sizes.
A. Insert the tungsten through the collet and torch body until the correct length protrudes from the ceramic cup — typically 2–4mm for most applications, up to 8–10mm for deep groove welding. Hand-tighten the back cap to grip the tungsten firmly, then snug by a fraction of a turn. Do not over-tighten.
A. Yes — a loose back cap reduces collet clamping force, causing the tungsten to slip under arc pressure and creating intermittent contact. This manifests as arc instability, wandering, and poor starts. Always ensure the back cap is correctly tightened before welding.
A. Cap length doesn't affect arc performance directly, but short caps allow better access in tight joints. In overhead or positional welding, a short or medium cap prevents the cap fouling on surrounding surfaces that a long cap would contact.
A. Yes — SR9, SR17, and SR26 torch series use different back cap thread sizes. An SR17 back cap will not fit an SR26 torch body. Always identify your torch series before ordering replacement back caps.
A. At minimum you need a welding helmet or headshield (auto-darkening recommended), leather welding gauntlets, a fire-resistant apron or jacket, and steel-toe boots. For enclosed spaces, a fume extractor or respirator is essential. A welding curtain or screen protects bystanders from UV flash. Keep a fire extinguisher accessible.
A. Yes — UK stocked for fast despatch. Check availability at PartsForMachines.com. Orders placed before the daily cut-off are dispatched same or next working day. Check the product page for current delivery estimates.
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