{"product_id":"ama-ama-3020-large-collar-tightener-adjustable-crank","title":"AMA AMA-3020 Large Collar Tightener \u0026 Adjustable Crank","description":"\u003cp\u003e\u003cstrong\u003eAMA AMA-3020 Large Collar Tightener \u0026amp; Adjustable Crank       \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe tightener arms fit onto the collar and the handle is turned to pulled the jaws together and tighten the collar around the pipe to clamp the workpieces in place.  The AMA 2 part collars from DN600 to DNDN1500 require a tightener either side of the pipe.\u003c\/p\u003e\n\u003cp\u003eHow the pipe centering collar \u0026amp; tightener works - \u003c\/p\u003e\n\u003cp\u003eSimple to use, the 2 piece clamps are placed around a pipe and joined to the AMA collar tightener either side of the pipe (available separately).  The 2nd piece of pipe can be moved into position and the collar moved so that it straddles over the join, between the 2 pipes to be joined.  Once centered and in position, the collar can be fully tightened, firmly clamping both pipes in place.  Holes within the collar allow access to the join to allow tack welding of the 2 pipes.  Once tack welded, the collar can be removed to complete welding.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"1344\" height=\"756\" src=\"https:\/\/www.youtube.com\/embed\/QdswneZAD6k\" title=\"AMA Centering Collar with hinge and Minitightener\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccurate and easy-to-use centering collar for pipes\u003c\/li\u003e\n\u003cli\u003eExtremely quick\u003c\/li\u003e\n\u003cli\u003eReduces installation and welding errors to a minimum\u003c\/li\u003e\n\u003cli\u003eUsed with AMA large 2 piece Collars DN600 – DN1500 sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Data\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClamping Range: 24″ – 60″ (600 – 1500mm OD) when used with appropriate collar\u003c\/li\u003e\n\u003cli\u003eMaterial: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFrom collar size DN\/NS 600 or larger because it has a 50 mm longer span and provides more torsional force. It is also better suited for thicker-walled pipes\u003c\/li\u003e\n\u003cli\u003eFitted with thrust bearings\u003c\/li\u003e\n\u003cli\u003eWeight 2.4 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eCollar Selection Guide\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/tbws.co.uk\/wp-content\/uploads\/2022\/03\/AMA-Pipe-Welding-Tools-Centering-Collar-Chart.jpg\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11839\" src=\"https:\/\/tbws.co.uk\/wp-content\/uploads\/2022\/03\/AMA-Pipe-Welding-Tools-Centering-Collar-Chart.jpg\" alt=\"Pipe Welding Collar Clamp Selection Chart\" width=\"610\" height=\"499\" srcset=\"https:\/\/tbws.co.uk\/wp-content\/uploads\/2022\/03\/AMA-Pipe-Welding-Tools-Centering-Collar-Chart.jpg 610w, https:\/\/tbws.co.uk\/wp-content\/uploads\/2022\/03\/AMA-Pipe-Welding-Tools-Centering-Collar-Chart-570x466.jpg 570w, https:\/\/tbws.co.uk\/wp-content\/uploads\/2022\/03\/AMA-Pipe-Welding-Tools-Centering-Collar-Chart-300x245.jpg 300w, https:\/\/tbws.co.uk\/wp-content\/uploads\/2022\/03\/AMA-Pipe-Welding-Tools-Centering-Collar-Chart-270x221.jpg 270w, https:\/\/tbws.co.uk\/wp-content\/uploads\/2022\/03\/AMA-Pipe-Welding-Tools-Centering-Collar-Chart-600x491.jpg 600w\" sizes=\"(max-width: 610px) 100vw, 610px\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"AMA","offers":[{"title":"Default Title","offer_id":55617066729848,"sku":null,"price":390.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0515\/8305\/8084\/files\/0008192_ama-large-collar-tightener-crank_390.jpg?v=1784912354","url":"https:\/\/www.brooksideweldingsupplies.co.uk\/products\/ama-ama-3020-large-collar-tightener-adjustable-crank","provider":"Brookside Welding Supplies Ltd","version":"1.0","type":"link"}