It is easier to control than a one-hit gun. The repetition rate is about 2,500 blows-per-minute (bpm). The slow-hitting gun strikes multiple blows as long as the trigger is held down. The piston is returned to the original position by a spring or the shifting of a valve allowing air to drive the piston back to the starting position. The bucking bar deforms the tail of the rivet. The force on the rivet set pushes the rivet into the work and against the bucking bar. The piston strikes against the rivet set. As the piston moves, a port opens allowing the air pressure to escape. When the trigger is squeezed, the throttle valve opens, allowing the pressurized air to flow into the piston. Regulated air entering passes through the throttle valve which is typically controlled by a trigger in the hand grip. Pneumatic rivet guns typically have a regulator which adjusts the amount of air entering the tool. Rivet guns vary in size and shape and have a variety of handles and grips. A rivet gun differs from an air hammer in the precision of the driving force. Those rivet guns used to drive rivets in structural steel are quite large while those used in aircraft assembly are easily held in one hand. Nearly all rivet guns are pneumatically powered. At the same time the work is tightly drawn together and retained between the rivet head and the flattened tail (now called the shop head, or buck-tail, to distinguish it from the factory head). As a result, the tail of the rivet is compressed and work-hardened. The energy from the hammer in the rivet gun drives the work and the rivet against the bucking bar. The rivet gun is used on rivet's factory head (the head present before riveting takes place), and a bucking bar is used to support the tail of the rivet. (December 2014)Ī rivet gun, also known as a rivet hammer or a pneumatic hammer, is a type of tool used to drive rivets. Brown at Colonna's Shipyard, a ship repair facility located in the Port of Norfolk, Virginia. Hansen Industries work on the Liberty ship SS John W. However, the mandral gets ejected in the rear mandrel container in the back of the M12.Īs far as weight, there's not much difference, just having to deal with the air hose with the pneumatic riveter is somewhat troublesome.Riveters from H. The mandrel seems to get stuck in the barrel of the pneumatic riveter. Then, the new M12 rivet gun from Milwaukee. Here, we're going to try out both rivet guns on a piece of scrap aluminum.įirst, the pneumatic rivet gun from Harbor Freight. This rivet tool is available on amazon for around $300. It can handle a range of Rivet sizes: 3/32", 1/8", 5/32" and 3/16", and works with Aluminum, Steel, and Stainless Steel. With 2,000 pounds of pulling force, It’s a great replacement to pneumatic products. This Rivet Tool is cordless and can pull up to 250 3/16" stainless steel rivets or 450 1/8" steel rivets on one charge of it’s battery, reducing muscle strain from the conventional hand tool. On the opposite spectrum, there is the M12 Rivet Tool Kit, made by Milwaukee Tools. It has a maximum air pressure capability of 90 PSI, and requires regular use of hydraulic oil. We really won't know about the quality or durability of this riveter until we use it for a while. Here's an affordable pneumatic pop rivet gun from Harbor Freight that sells for about $40.
One with 10,000 rivets, and the other with 2,500 rivets. That's a lot of rivets, especially if you're popping them by hand. There are over 12,500 Pop Rivets in the RV-12iS.
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