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Hand riveters are tools used to install pop rivets. They can be hand-operated or air-powered and work by expanding and clamping a hollow rivet. Manual hand riveters have three types: collet, lazy collet, and lever. Air-powered hand riveters are used for high-volume and speed industries.
A hand riveter is a manually operated tool used to install pop rivets. This group of tools includes hand-operated and hand-operated tools and hand-operated and air-powered tools. Both types are used to install pop rivets and both work the same way. The tools expand and clamp a hollow rivet by pulling a mandrel through the body of the rivet. The mandrel is then broken off and discarded, leaving the expanded rivet to secure the work pieces.
Hand riveter tools are usually designed for use with blind rivets only and work by pulling the rivet mandrel through the body of the rivet to expand and set it. This pulling action is provided by a set of locking jaws and the compound leverage produced by a series of manually or pneumatically operated handles. It is this source of leverage potential that differentiates the two main categories of hand riveters: The first group are those tools that are operated by hand and depend on manual retraction of the mandrel. The latter are hand riveters which, although operated by hand, rely on a source of compressed air to set the rivet.
Manual hand riveters typically use one of three drive types. The former is the type of collet riveter commonly used for light duty applications and smaller aluminum rivets. These tools have a jaw mechanism that retracts the mandrel of the rivet via a collet-type handle arrangement. To complete the riveting operation the two handles must be closed several times, releasing the tension after each closure to move the jaws along the mandrel. Once the chuck has reached the pre-stressed cutting point, it breaks and is ejected out the rear of the jaw assembly.
The lazy collet type of hand riveter is the second type of manually operated riveter and operates on a lattice-type lever system. The collet arrangement is fully extended to open the jaws and seat the rivet mandrel. The collet lever is then pushed towards the riveter head, closing the jaws to grip and retract the mandrel. Because of its greater leverage range, this type of tool typically requires only a single cycle to set the rivet and break the mandrel.
The third common hand riveter is the lever type, which resembles a pair of string trimmers. The two long handles, or levers, are opened to insert the mandrel of the rivet into the jaws and closed again to secure and retract it. Because of the wide range of motion the handles are capable of, this type of tool also needs only one cycle to set the rivet. Both lever and lazy type of hand riveter are often used for heavier steel rivets due to their greater mechanical advantage.
While not commonly used as hand riveters, air tools are often used in industries where high riveting volumes and speeds are required. These tools are manually operated but rely on a supply of compressed air to retract the jaw mechanism and set the rivets. These tools can be used with the heavier blind rivets and allow the operator to complete many more riveting cycles in any given time than manual varieties. Additional refinements found on pneumatic hand riveters include rivet cassettes and mandrel locks, which further speed up production.
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