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Mandrels-forms and shapes - wire and rod
The standard requirement is for straight mandrels, between 100mm and 3000mm (between 4" and 10ft) long, with diameter ranging from 0.3mm (0.012" diameter) to 10mm (0.4" diameter). Mandrels will, as a standard, have deburred, chamfered or rounded ends depending on customer preference.
We centreless grind straight mandrels to a tolerance of +/- 0.002mm (+/-2/10000" tolerance).
On request, we can supply mandrels centreless ground to more than one diameter along the length i.e. tapered mandrel, stepped mandrel, D-shape mandrel. Machined end-forms to each mandrel are possible, as are grooved mandrels. Crescent shaped mandrels, half-moon shaped mandrels and star-shape or profiled mandrels are drawn incorporating channels or "grooves" along their length. Some examples of these different shapes and forms are shown below.
Finally, we manufacture mandrels which are wire-formed. Starting with straight, centreless ground bar or wire, we wire-form each individual mandrel to customer specification. Shipping mandrels, for their easy removal, have a small loop at one end as shown. Bent, or wire formed mandrels might be specified in order for our customer to manufacture a similarly shaped delivery system by cladding the mandrel then setting the final polymer shape. Our laser welding capability enables burr removal and joining mandrel "legs" together in order to consolidate the precise mandrel shape.
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