Handong made normal releasing pneumatic caliper disc brake NAB-20T

Handong normal release pneumatic caliper disc brake NAB-20T

This air engagement NAB model air shaft friction brake is normal releasing, that is to say, when there is no air source, this brake is in released status, after supplying air source, this brake will be braked for stopping. It is different with HABB spring engagement air release brake, pneumatic caliper disc brake NAB-20T is driven by air pressure.

NAB pneumatic air shaft friction brake is a regular and standard type friction brake. It can replace Nexen S and T series shaft-mounted friction brake very well. It is composed of cylinder, piston, friction plate, bushing cover, cone-shaped bushing with wedge, bearing, guide parallel pin, return springs, sealing parts (O-ring) and fastener. Our Handong company adopts superior quality NSK bearing, greatly prolong brake’s service life and stability. After more than 10 years improvement, NAB brake is also durable in high frequency and high load hard working environment.

This NAB air shaft brake is design and made by Shanghai handong company, it can replace NIIKA NAB pneumatic brake, HAC HDB air brake, ASAHI BSB shaft mounted brake with good quality and competitive price. There are two modes of it: NAB-S and NAB-T. The NAB-S type brake is without taper bushing, it is refer to small torque brake, for example NAB-0.2S, NAB-2S, NAB-5S, NAB-10S; NAB-T type brake is with taper bushing, it is specific to larger torque brake, such as NAB-10T, NAB-20T, NAB-40T, NAB-65T. They can produce high torque from 20-636N.m for modern industry usage.

NAB model pneumatic brake is industrial friction type brake. It can be used as a brake and tension controller as needed. It is composed of cylinder, piston, aircraft, friction plate, return springs and others. This brake relies on air pressure to brake, return springs to release. After supplying air pressure, piston pushes piston aircraft and friction plate pad move towards and compressed shaft attached lining disc, disc and other rotating parts stopped, brake braked. After exhausting air pressure, piston aircraft and friction plate are separated with shaft attached lining disc by return springs, brake released.

It can well released heat generated from friction via cooling plate mounted on disc with hub. Friction plate is two-cut style, using screw driver to take out head inside screw through hole of disc with hub, it is convenient to replace friction plate with complete structure.

This pneumatic brake is widely used in rubber tire forming machine, food machinery, printing machinery, packaging machinery, textile machine, tire machinery and other machinery. 

Brakes' torque can be adjusted via regulating air pressure, when air pressure larger, its braking force is large, too. The air pressure is from 0.1Mpa to 0.6Mpa available. This brake can be used independently or matched with safety chuck together. In above case, NAB brake is worked with pneumatic safety chuck for usage.

In this usage, NAB-65T matched with automatic pneumatic safety chuck for tire making machine. Pneumatic safety chuck is used to hold air expanding shaft for web material winding and unwinding, it is convenient for paper core loading and taking out. At the same time, NAB-65T pneumatic friction caliper disc brake is applied to control tire web material rewinding and unwinding .