Our experience with all heavy-duty staplers with capacities exceeding 100 sheets has been that to avoid jamming one must have good leverage and cycle the stapler quickly in one smooth stroke. That is difficult to do if the stapler and work product is situated on a typical 36" countertop or cabinet. Working on a lower 29” sturdy table allows the operator to position his/her upper body directly over the stapler arm and bring greater pressure and stroke speed to the stapling operation.
What typically causes staples to buckle and jam when attempting to staple thick bundles of paper is slow or interrupted pressure on the arm of the stapler; the tensile strength of the wire the staple is made of is overcome by the density of the thick stack of paper. 100+ sheets of 20 lb. bond take on the characteristics of the wood the paper’s made from.
It is an engineering fact that the thickness capacity of a stapler is more determined by the tensile strength [hardness] of the wire the staple is made of than the stapler itself. Our super heavy-duty Imperator staplers are made of tool steel not so much because that is necessary to staple 100+ sheets, but because that is necessary to stand up to the extremely hard staples used in those staplers.
Lastly, regardless of the brand of heavy-duty manual bindery stapler, with the exception of the Imperator which uses very special and expensive staples, all are performance limited by the standardized wire the staple they use is made of. There are relatively few wire mills globally that supply all staple manufacturers with a specific range of wire types. That is so because all the staple manufacturers use similar if not identical staple-making machinery that is engineered for particular wire specifications. A heavy-duty Swingline stapler for example will use staples made of the same wire spec. as the heavy-duty Rapid and perform similarly in terms of its maximum capacity and resistance to jamming. That is not to say the staples will necessarily be interchangeable between the brands [but often are not], however they will be made of the same wire type.
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