QDG3.5-A2158 Large Torque Air Friction Pads Clamp Brake

QDG3.5-A2158 large torque air friction pads clamp brake

QDG3-A2155 air engaged caliper disc brake is flange mounted friction type brake. Normally, this brake is released, after supplying air pressure, two friction pads clamp steel plate together, brake is locked. It is with large air volume, and can produce high braking force from 500-12000N.m.

There are two models of it: QDG3-A2155, QDG3.5-A2158. They can produce high braking force after inputting air source. Following is the detail technical data of this type brake:

As to above technical data, it is shown that brake QDG3-A2155 for braking plate thickness 25.4mm, and QDG3.5-A2158 for friction panel thickness 40mm. This character is the same with caliper disc brake QDE-3 and QDE-4. These two models of brake QDG3-A2155, QDG3.5-A2158 equiped with 3# and 3.5# air cylinder head in separately. The air cylinder head size different, its air volume is different, too. So it produce braking force is different. For example, when panel diameter is 760mm, QDG-3 clamping force is 4000N.m, QDG-3.5 is 6000N.m; When plate diameter is 915mm, QDG-3 clamping force is 5000N.m, QDG-3.5 is 7500N.m. So braking disk diameter larger, it produces braking force is higher, too.

New friction pad thickness is 8mm, and max total abrasion of two friction pads is 10mm. Our friction pads is used non-asbestos material, it is durable and nearly without noise. 

QDG horizontal high torque caliper disc brake is suitable for working machinery, construction machinery, steel rolling machinery, coiling machine, gantry crane and hoist, paper making machinery, ship, trimming machinery, feeding machine, orientation machine, tension controller, iron and steel machinery, packaging machinery, printing machine, textile machine, wire and cable machine, machine tool equipment, wind driven generator, solar energy equipment; iron and steel, aviation, metal process and many other industrial fields. 

In this case, QDG air brake is applied in wire machine, there are two sets of this brake used together to brake one steel plate for stopping. So as to make its braking force in twice. It is safe and easy for usage for modern industry equipment.