The reason why the ceiling screwdriver with muffler is still so loud is that there is a problem with the sealing, which may be that the rubber cushion is falling off or damaged.
The ceiling nailer: in fact, is an improved variety of nailer, its working principle also relies on the gunpowder in the confined space in the explosion instantly produces a huge thrust to the steel nails into the concrete, but its biggest difference with the traditional nailer is that it is the bullet nails in one, and the way of striking is different. Ceiling nailer without trigger.
Only need to apply enough pressure at the top, relying on the role of reaction force to make the needle will be the bullet in the top of the ceiling nailer launch tube automatically shot, gunpowder instantly produced by the huge thrust on the back of a nail on the plastic cushion, push the steel nails, the steel nails into the substrate. Due to the front end of the nail and the base of the steel pendant between the separation, the steel nail in the base of its kinetic energy when hit by a certain buffer.
This reduces the damage to the substrate due to impact, so its effect is similar to the hammer, or even lower than the impact of drilling, hammering damage to the substrate. Compared with the traditional nailer, ceiling nailer is safer and more convenient. As it is mainly used for suspended ceilings, bridges, duct flue installation and other top fixing projects, the construction conditions are not constrained, convenient operation, high construction efficiency, strong tensile strength, stable and reliable.