Atlas Copco Air Motors

Atlas Copco – air motors • Leading the industry in development and innovation. • Offering a comprehensive range of standard air motors. • A premier supplier of air motors engineered to meet customer requirements. • Delivering orders, on time, to customer schedules. • Offering a truly world-wide service. Atlas Copco air motors – the natural choice for design engineers in the industry of today and tomorrow. Air motor features and characteristics • Air motors are compact and lightweight. An air motor weighs only a quarter as much and occupies only one sixth of the space of an electric motor of equivalent...

Log in to www.atlascopco.com/airmotors 24-hour access Visit our web site and browse through our on-line catalogue. You’ll find comprehensive technical information as well as details of accessories, spare parts and dimensional drawings. You can also subscribe to our news. The pocket guide is for you who want to know more about air motors. In the pocket guide you find information about function, design, motor selection and installations. Use the Ordering No. 9833 9067 01. Selecting the right motor has never been easier! Only enter the required working point for the application and the most suitable...

Torque [Nm] Speed [r/min] Stall torque Min starting torque Torque Power Introducing the air motor The air motor is one of the toughest and most versatile power units available to today´s design engineer. It is easy to control over a wide speed range, and it produces maximum torque where it is often most needed – at start up. The performance of an air motor is dependant on the inlet pressure. At a constant inlet pressure, ungoverned air motors exhibit the characteristic linear output torque/speed relationship. Figure 1. However, by simply regulating the air supply, using the techniques of throttling...

Understanding the performance curves The output of an air motor is most clearly seen from its performance curves Figure 8. For each motor/gear unit the power, torque and air consumption are shown as a function of speed. The diagrams shown apply to an inlet pressure of 6.3 bar, to calculate performance at other pressures refer to page 70 in this catalogue. Motor selection Guidelines on motor selection are given on page 70 in this catalogue – Choosing Your Motor. Methods of modifying motor output Throttling A throttle is usually fitted into the motor´s inlet hose, although it can also be fitted...

Introduction to Atlas Copco air motors and gear units Figure 9 LZB Vane motors – 0.1 kW to 2.9 kW Type LZB Atlas Copco vane motors are compact in design, light in weight, and available with a host of different gear ratios to meet a variety of speed and torque requirements. They are particularly suited to be built into hand held machines, or indeed any industrial equipment. Planetary gear units Atlas Copco planetary gear units are particularly suited for use with LZB vane motors. The gear and motor components can be accommodated within a single, extremely compact housing where they provide high...

Lubrication free air motors Atlas Copco’s lubrication free air motors are equipped with low-friction vanes, sealed bearings and vented cylinder plates. Since they release no lubricants into the air, they offer a viable drive solution for sensitive processes and hygienic environments where oil contamination would be at best a problem and, at worst, a catastrophe. LZB 33 high torque – low speed air motors Accomplishing high torques generally calls for very large motors with correspondingly high air consumption. The LZB 33 high torque/low speed air motors are based on the combination of LZB 33,...

Cylindric shaft Threaded shaft Fr Fa A Fa (N) 4000 3000 2000 1000 1000 2000 3000 4000 5000 6000 7000 Fr (N) Curve h Curve g Curve f Curve e A = 20 mm A = 15 mm A = 20 mm A = 15 mm Fa (N) 2000 1500 1000 500 500 1000 1500 2000 Fr (N) Curve d Curve c Curve b Curve a A = 20 mm A = 15 mm A = 9 mm A = 8 mm Coversion factor 1N = 0.225 lbf Figure 14 Figure 13 Threaded shaft Fa Fa Fr Fa (N) 3500 3000 2500 2000 1500 1000 500 1000 2000 3000 4000 5000 Fr (N) Curve e Curve g 500 1500 2500 3500 4500 Fa (N) 400 250 150 50 1000 2000 Fr (N) 500 1500 2500 200 100 0 300 350 450 Curve a Curve b Curve c LZB Vane...

Reversible Motor The compressed air supply should be connected to the inlet that gives the desired direction of rotation, Figure 17. The inlet not in use functions as an additional outlet: it must not be plugged. Hose dimensions Information on hose dimensions recommended for use with type LZB air motors is detailed in Table 2. These dimensions are valid for hose lengths up to 3 m. If lengths above that are used, choose a one size larger hose. Hose size up to 3m length. Figure 17 Table 2 Mounting Type LZB vane motors may be mounted in any position. To facilitate this, flange and foot mounting...

Vane motors LZB 22 LR, LZB 22R LR Low speed reversible Maximum permitted torque 9 Nm (6.6 lbf.ft). For EX certification according to the ATEX directive (Ex II 2G T5 IIC D85°C) use Ordering No. 9834 1108 00 (book as one delivery together with motor). EX certification for LZB 22 LR valid for fixtured mounted use only. Within their working range these motors have a very steep torque curve. Speed and air consumption is relatively constant regardless of the load. Data at air pressure 6.3 bar (91psi) Dimensions LZB 22 RL (mm) Optional Mountings Foot for LZB 22 LR Ordering No. 4430 0160 80 Reversible...

Vane motors LZB 33 LR, LZB 34R LR Low speed reversible Maximum permitted torque 14 Nm (10.3 lbf.ft) For EX certification according to the ATEX directive (Ex II 2G T5 IIC D85°C) use Ordering No. 9834 1108 00 (book as one delivery together with motor). EX certification for LZB 33 LR valid for fixtured mounted use only. For applications where low speed and high torque are required the LZB 33 high torque/low speed motors should be considered, see page 26. Within their working range these motors have a very steep torque curve. Speed and air consumption is relatively constant regardless of the load....