NAB pneumatic brake matched with air shaft for tension control

NAB pneumatic brake can be used for stopping and tension control as needed. When it is used for stopping, as usually its max air pressure is 0.6Mpa; when it is used as a tension controller, its air pressure can be regulated from 0.1-0.6Mpa as tension force needed. NAB pneumatic brake worked for tension control, it is usually matched with air shaft and safety chuck together.

NAB pneumatic brake is equiped with cooling fan structure, so it is good for heat dissipation. On the other hand, cooling fan structure can help reduce friction pads abrasion thermal, so as to prolong friction pads' service life and then prolong pneumatic brake S-450 NAB-10S usage life greatly. This air brake is widely applied in packing machine for braking or tension control.

This pneumatic brake is used for braking steel shaft for stopping, it is normal releasing. That is to say, NAB pneumatic friction caliper disc brake is driven by air pressure, when there is no supplying air source, this brake is in released status, steel shaft is driven by motor part and rotating; after supplying air source, this brake will be braked, making rotating shaft stopped. 

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.

NAB pneumatic friction brake can be divided into two types, one is without taper bushing, such as NAB-2S, NAB-5S, NAB-10S, NAB-20S. Another type is equiped with a taper bushing on the end of bore, it is easy for installation and can protect the bore from axial movement, such as NAB-20T, NAB-40T, NAB-65T. Different model brake, it matched taper bush is different, too.

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. Following is the detail technical data of this brake:

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 machineries winding and unwinding.

In this case, NAB pneumatic brake is matched with pillow mounted safety chuck and air expanding shaft for tension control. Tension force can be adjusted via regulation air pressure volume accordingly. NAB pneumatic friction brake is fixed on the flange plate, and connected with safety chuck extended shaft together. Then air expanding shaft loaded in the safety chuck, to be a complete tension control group.

This NAB pneumatic brake is through control air shaft winding and unwinding force to control web material rolled tightness or loose degree. It is easy and save energy.