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Air Motors

Air Motors
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Air Motors

Product catalog summary
Overview of Atlas Copco Air Motors
Atlas Copco is a prominent innovator in the air motor industry, offering a diverse range of standard and custom-engineered air motors. Known for timely delivery and global service, they are a preferred choice for design engineers.
Features and Characteristics
  • Compact and lightweight, air motors are smaller and lighter than equivalent electric motors.
  • They can be stalled indefinitely without damage and can be started and stopped repeatedly.
  • Torque, speed, and direction are easily adjustable, controllable over a wide speed range.
  • Explosion-proof and compliant with the EU's ATEX Directive for explosive environments.
Product Range and Specifications
  • LZL Vane Motors: Available in various configurations, including power, lubrication-free, and stainless steel versions.
  • LZB Vane Motors: Compact design with multiple gear ratios, suitable for handheld machines and industrial equipment.
  • Stainless Steel Motors: Designed for corrosive environments, such as food processing and chemical industries.
  • Lubrication-Free Motors: Equipped with low-friction vanes and sealed bearings, ideal for hygienic environments.
Performance and Control
  • Exhibit a linear torque/speed relationship, with performance dependent on inlet pressure.
  • Output can be modified through throttling or pressure regulation.
  • Performance curves illustrate power, torque, and air consumption as a function of speed.
Installation and Selection
  • Guidelines for motor selection and installation are provided, including considerations for airlines, hose connectors, and control valves.
  • A web-based selection tool is available to simplify motor selection based on application requirements.
Additional Features
  • Motors with Brake: Available for applications requiring the output shaft to remain stationary when not in use.
  • Helical Gear Units: Provide high efficiency and are flange-coupled to the motor for flexible coupling.
Design and Features
The motors are designed to be long and slim, offering a high power-to-volume ratio, low air consumption, and extended vane life. They utilize five vanes for excellent starting and low-speed performance. Multi-step planetary gears are incorporated to meet torque and speed requirements efficiently.
Shaft Loading
Figures illustrate the maximum allowable loads on the motor's output shaft, calculated for a working life of 10 million turns, with recommendations to halve the loading factor for a 100 million turn lifespan.
Reversible and Non-Reversible Motors
Instructions are provided for connecting the compressed air supply to achieve the desired direction of rotation. For reversible motors, the unused inlet functions as an additional outlet and should not be plugged.
Hose Dimensions
Recommended hose dimensions for LZB air motors are specified, with adjustments suggested for hose lengths exceeding 3 meters.
Mounting Options
LZB vane motors can be mounted in any position, with flange and foot mounting options available.
Performance Data
Detailed tables and performance curves are provided for various models, including specifications such as maximum output speed, torque, air consumption, and weight. Conversion factors for power, torque, and air consumption are also included.
Materials and Certification
The document specifies the materials used in the construction of the motors and provides information on EX certification according to the ATEX directive for certain models.
Specifications
Detailed specifications for Atlas Copco air motors, specifically the LZB 22, LZB 33, and LZB 34 series, designed for use in explosive environments, compliant with the ATEX directive (Ex II 2G T5 IIC D85°C). Materials include stainless steel with specific designations for different parts, ensuring durability and compliance with industry standards.
Performance and Dimensions
Includes detailed performance data for various models, including maximum output speed, torque, and air consumption at a standard air pressure of 6.3 bar (91 psi). Dimensions are provided in millimeters with conversion factors for inches.
Mounting Options
Optional mounting accessories are available, including flanges and feet, with specific ordering numbers for each configuration.
Motor Variants
- LZB 22R and LZB 22RL: Available in both lubricated and lubrication-free versions, with specifications for clockwise and reversible rotations.
- LZB 33 and LZB 34R: High torque and low-speed options are available, with lubrication-free versions offering 95% of the shown free speed.
Performance Curves
Includes performance curves for different motor models, illustrating the relationship between torque, power, speed, and air consumption.
Key Data Points
- Maximum permitted torque for LZB 22 LR is 9 Nm (6.6 lbf.ft).
- Maximum permitted torque for LZB 33 LR is 14 Nm (10.3 lbf.ft).
- Conversion factors are provided for power, torque, and air consumption units.
Recommendations
For applications requiring low speed and high torque, the LZB 33 high torque/low speed motors are recommended. The document emphasizes the importance of using the correct ordering numbers for EX certification and optional accessories.
Specifications
Detailed specifications and performance data for Atlas Copco air motors, specifically the LZB 46, LZB 54, and LZB 66 series, categorized based on their rotational capabilities: clockwise, anti-clockwise, and reversible.
Performance Curves
Contains performance curves for each motor type, illustrating the relationship between torque, power, speed, and air consumption at an air pressure of 6.3 bar (91 psi).
Mounting Options
Optional mounting configurations are available, including flange and foot mountings, with specific ordering numbers provided for each option.
EX Certification
Mentions EX certification according to the ATEX directive for certain models, indicating suitability for use in potentially explosive environments.
Key Data Extraction
Tables and graphs provide critical data on motor performance, including maximum output speed, torque, and air consumption, essential for selecting the appropriate motor for specific applications.
Additional Notes
References additional pages for detailed shaft loading curves and performance curve information, indicating a comprehensive technical manual.
Specifications
Detailed specifications and performance data for Atlas Copco's LZB 66 and LZB 77 air motors, including both reversible and non-reversible models. Includes detailed information on dimensions, performance curves, and accessories.
Performance Data
Performance curves are provided for different models, illustrating the relationship between torque, power, speed, and air consumption.
Dimensions and Mounting
Detailed dimensions are provided for the motors, including flange and shaft specifications. Describes the mounting options and the importance of correct restrictor placement for optimal performance.
Accessories
Lists available accessories such as key chucks, quick chucks, collet chucks, silencers, and lubrication-free vane sets. Ordering numbers are provided for easy reference.
Recommendations
Advises on the correct hose dimensions for different motor types and emphasizes the importance of using lubricated air for power motors to ensure reliability and longevity.
Standards and Certifications
Some motors are EX certified according to the ATEX directive for use in potentially explosive environments. Specifies the conditions under which this certification is valid.
Specifications
Detailed specifications, procedures, and recommendations for Atlas Copco air motors, specifically focusing on the LZL and LCV series. Includes dimensions, valve and brake specifications, motor selection guidelines, and installation instructions.
Valves and Brakes
The LCV 32 control valves are designed for LZL 25 and 35 motors, available in air-controlled and hand-operated versions. The LPB brakes are compatible with LZL motors and are activated by springs and released by air pressure, suitable for holding or emergency use.
Motor Selection
Guidelines for selecting the appropriate air motor based on the desired working point, determined by the operating speed and required torque. Provides formulas for calculating power requirements and selecting the correct motor size.
Installation and Maintenance
Recommendations for airline dimensions, hose connectors, and air preparation to ensure reliable motor performance. Emphasizes the importance of proper lubrication and provides guidelines for calculating lubrication requirements based on air consumption.
Environmental Considerations
Atlas Copco air motors can operate in various hostile environments, including acidic, explosive, and high-temperature conditions. Advises consulting with Atlas Copco representatives for specific applications.
Noise and Temperature
Discusses noise reduction techniques and the operational temperature range for air motors, highlighting the need for dried compressed air in low temperatures to prevent freezing.
Additional Resources
The Atlas Copco Air Motor Selection Program is available online to assist in selecting the right motor based on specific torque and speed requirements.
Specifications
Lists various BSPT and BSP threaded components with specific dimensions and part numbers, likely used in pneumatic systems.
Procedures and Installation
Describes the use of valves in air motor systems, specifically mentioning the use of 5/3 valves for reversible motors and 3/2 valves for non-reversible motors. Emphasizes the importance of ensuring that control valves have sufficient flow capacity to meet motor requirements.
Components and Symbols
Key components in the system include filters, pressure regulators, oil fog lubricators, silencers, and directional control valves. Provides symbols for these components in installation diagrams.
Installation Examples
Examples of typical installation diagrams for LZB and LZL air motors are provided, highlighting the placement of control valves, filters, regulators, lubricators, and silencers. For LZL air motors, an inlet restrictor must be placed upstream of the inlet to avoid affecting the exhaust during reversible running.
Special Motors
Atlas Copco offers customized air motors for OEM requirements, which can include unique casing or mounting arrangements, non-standard materials, or specific output designs. Collaborates with customers to find the best solutions for their needs.
Additional Information
Includes figures and diagrams to illustrate the installation and operation of air motors and their components. Notes that the information is subject to change without prior notice.
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Catalog excerpts

Air Motors-1

Atlas Copeo Air Motors

 Open the catalog to page 1
Air Motors-2

Atlas Copeo - 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 custo- • Delivering orders, on time, to customer schedules. • Offering a truly world-wide service. Atlas Copeo air motors - the natural choice for design engineers in the industry of today and j • 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 output power. Air motors develop far more power relative...

 Open the catalog to page 2
Air Motors-4

Additional information about air motors from Atlas Copco Selecting the right motor has never been easier! Only enter the required working point for the application and the most suitable motor will automatically be selected. For the selection you use the web based Atlas Copco selection tool. 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. Air motor selection program, available at www.atlascopco.com/airmotors Log in to www.atlascopco.com/airmotors...

 Open the catalog to page 4
Air Motors-5

- Pressure regulation - Motor data, specification and performance curves - Motor selection • Introduction to Atlas Copeo air motors - Shaft loading - Hose dimensions • LZB vane motors: data, specification • LZL vane motors introduction . - Shaft loading - Hose dimensions LZL vane motors: data, specification - LZL Lubrication free motors - LZL Stainless steel motors - Helical gear units type BG - Shaft loading - Calculating sprocket or gearwheel dimensions - Operating speed • LZL air motors: with helical gear units data, specification and performance curves... 58 -Atlas Copeo airmotor selection...

 Open the catalog to page 5
Air Motors-6

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 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 It should be noted that all vane air motors produce a variable starting torque, due to the position of the vanes in the motor when it is started. The variation differs between motor types and must be...

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Air Motors-7

Methods of modifying motor A throttle is usually fitted into the motor's inlet hose, alt- hough it can also be fitted into the exhaust hose. When it is desirable to maintain a high starting torque but reduce run- ning speed - throttling is the best method of modifying the motor's output, Figure 5. Notes on performance data The performance data stated in this catalogue is valid for an air supply pressure of 6.3 bar (91 psi), gauge. Air consump- tion values are for free air delivery - (ie, the volume the con- sumed air would occupy if allowed to expand to atmosphe- The direction of rotation for...

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Air Motors-8

Introduction to Atlas Copeo air motors and gear units Type LZB Atlas Copeo vane motors are compact in design, light in weight, and available with a host of different gear rati- os 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 Copeo 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 torque capacity for their size and exceptional...

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Air Motors-9

Lubrication free air motors Atlas Copeos lubrication free air motors are equipped with low-friction vanes, sealed bea- rings 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 conta- mination would be at best a problem and, at 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, the work horse in Atlas Copco's air motor program, and the gears...

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Air Motors-12

LZB Vane motors Introduction LZB vane motors are designed to provide high performance and high standards of reliability. Typically, they are characterized by a high power output and small physical size, Figure 12. Fr (N) 3500 3000 2500 2000 1500 1000 500 Figure 12 1000 500 1500 2000 2500 3000 3500 4000 4500 5000 Fa (N) Curve e Curve g The design of the motor is chosen to be long and slim. This gives a number of advantages like a high power to volume ratio, a low air consumption and long vane life. All motors utilise five vanes, which are supplied with vane air, to ensure excellent starting and...

 Open the catalog to page 12
Air Motors-13

Type LZB vane motors may be mounted in any position. To facilitate this, flange and foot mounting are available for each Non-Reversible Motor When the compressed air supply is connected to the inlet, the direction of rotation will be as shown in Figure 16. If the exhaust air is to be piped away, a hose should be connected Certain models have a third outlet, which can be plugged without affecting the performance of the motor. 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...

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Air Motors-14

Lubrication free versions For EX certification according to the ATEX directive (book as one delivery together with motor). EX certification valid for fixtured mounted use only. Shaft Type Nm Ibf.ft Nm Ibf.ft r/min l/s cfm kg lb code2' Clockwise rotation Anti-clockwise rotation Lubrication free " Suffix. -11 = Keyed Shaft -12 =Threaded Shaft. 2> For Shaft loading curves, see page 12. NOTE:The lubrication free motors have 95% of shown free speed Optional Mountings 14 ATLAS COPCO AIR MOTORS Optional accessories

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.