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Electric cylinders LEMC

Electric cylinders LEMC

Product catalog summary

Overview
The document provides a detailed overview of LEMC high-performance electric cylinders, designed to replace traditional hydraulic systems. These cylinders offer advantages such as reduced size, weight, and maintenance, along with enhanced safety and environmental benefits.

Features and Benefits

High-performance roller screw with steel push tube and aluminum protection tube.
Modular design for various motor configurations, including servo and asynchronous motors.
High load capacity, stiffness, and robustness for diverse applications.
Low maintenance with direct relubrication of the roller screw nut.

Product Description
LEMC electric cylinders use a precision roller screw driven by an electric motor and gearbox, offering higher power density. They are configurable for different applications and motor types, including integrated gearboxes and smart asynchronous motors with NFC capabilities.

Technical Specifications

Various models with different load capacities, speeds, and motor configurations.
Performance data includes maximum dynamic and static axial forces, torque, linear and rotational speeds, and acceleration.
Environmental specifications include ambient temperature range and degree of protection (IP54S).

Motors and Gearboxes
Compatibility with Lenze servo motors and drives is detailed, offering options for absolute encoders, safety brakes, and servodrives. Asynchronous motors feature smart control boxes with adjustable speed, digital inputs/outputs, and energy efficiency.

Performance Overview
Tables provide detailed performance metrics for various linear units and actuators, including force capacities, speeds, and gear ratios.

Installation and Maintenance
Instructions for motor assembly, maintenance, and limit switch adjustments are available, with 3D models and product configurators downloadable from the Ewellix website.

Dimensional Drawings
Detailed drawings are provided for different configurations, including inline and parallel interfaces, with specifications for motor attachment and gearbox types.

Specifications

Performance Data: Includes continuous and peak force at zero and maximum speed, dynamic load capacity, holding force, maximum linear speed, and acceleration. Duty cycle is consistently at 100%.
Mechanical Data: Details on screw type, diameter, lead, accuracy, stroke, overstroke, backlash, gear reduction, inertia, and weight.
Electrical Data: Information on motor type, nominal voltage, current, peak current, and power.
Environmental Data: Ambient temperature range is 0 to +40°C with a degree of protection rated at IP54S.

Procedures and Recommendations

Additional lengths for brake and encoder options are specified.
Ordering keys and additional options such as limit switches, grease types, and drive fieldbus are outlined for customization.

Diagrams and Tables
Performance diagrams and dimensional drawings illustrate force and speed relationships and actuator dimensions.

Critical Information
Key parameters include force capacities, speed limits, and mechanical tolerances. The document emphasizes selecting appropriate configurations based on specific application needs.

Technical Specifications
Detailed specifications for high-performance actuators with asynchronous motors include:

Motor Type: Asynchronous
Nominal Voltage: AC 3 × 400 V
Nominal Current: 1 A
Nominal Power: 0.47 kW
Ambient Temperature: 0 to +40°C
Degree of Protection: IP 54S

Mechanical Data
Actuators feature roller screws with a diameter of 30 mm and a lead of 5 mm. Stroke ranges from 100 to 800 mm, with an internal overstroke of 5 mm on each side. Gear reduction varies across models.

Performance Data
Metrics include:

Continuous Force at Max Speed: 8 kN to 49.2 kN
Dynamic Load Capacity: 106 kN
Holding Force (Motor Brake Option): Up to 80 kN
Linear Speed: 1.3 mm/s to 41.8 mm/s
Duty Cycle: 100%

Weight and Inertia
Weight at 0 mm stroke is approximately 25.8 kg, with an additional weight of 2.05 kg per 100 mm stroke. Inertia at 0 mm stroke is specified, with incremental changes per 100 mm stroke.

Options and Accessories
Various options include anti-rotation features, brake options, and limit/home switches. Configurations for both L-configuration and parallel configuration actuators are outlined.

Ordering Information
An ordering key is provided for selecting specific configurations, including motor type, screw diameter, stroke, attachments, tube options, limit switches, grease type, and motor mounting position.

Additional Information
Further details on motors and motor adapters are available, with performance diagrams and dimensional drawings to aid in understanding actuator configurations.

Catalog excerpts

EWELLIX Electric cylinders LEMC

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High performance actuator • High performance roller screw • Steel push tube and aluminium protection tube • Modular concept • Possible to relubricate the roller screw nut with direct access • Servo motors, asynchronous motors and customized motor adapters • High load and lifetime capacity, as well as high acceleration and speed capabilities • High stiffness and robustness • Multiple combinations allow for use in wide range of applications • Low maintenance requirements • Optimal solution for a wide variety of applications, either with Ewellix-pro-vided motors or with the motor of your choice

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Product description For generations, hydraulic cylinders were often the first choice for large forces or to move heavy loads. Today, hydraulic systems have a powerful rival in the linear motion world – the electric cylinder. This technology results in an actuator with a higher power density than conventional designs. LEMC actuators use a modular design that can be conﬁgured for many different applications and a range of motor types. In many applications, electromechanical systems provide a host of advantages over their hydraulic counterparts. They are smaller and lighter, and since the motor...

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High performance actuator EWELLIX Performance overview of linear units Linear unit Performance overview of actuators Linear unit Interface and gear ratio Motor Fc0

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EWELLIX Motors and gearboxes Servo motors The LEMC can be ordered with a servo motor. In this case, Ewellix has selected a series of Lenze motors and drives that best matches the performance of the actuator to the end-user application. To complete the design, several options can be selected such as absolute encoder (EnDat, Hyperface), safety brake or associated servodrive. It is also possible to equip the LEMC with your preferred brand of servo motor so that it integrates best into your system. Please contact Ewellix to check the feasibility of your configuration. For more information please...

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High performance actuator EWELLIX Asynchronous motors The LEMC with asynchronous motor is the combination of an LEMC linear unit, a gearbox and a Lenze smart asynchronous motor. The gearboxes are available with several ratios to either favor speed or load for any linear unit size. They are available packaged in parallel and right angle configurations. The gearboxes are oil lubricated. When ordering a LEMC with asynchronous motor, the proper configuration must be identified so that the drains and vents are located correctly. Smart functions The asynchronous Lenze motor is equipped with a smart...

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EWELLIX Standard Motor interface Layout Inline Parallel Rockwell / Allen Bradley MPL-A/B45x L1024110L NOTE: For other motors, please contact Ewellix.

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High performance actuator EWELLIX Third party motors In order to attach your preferred motor to the linear unit, Ewellix offers tailor made solutions within the specifications below. For motor specifications which are not covered by the specifications below, please contact Ewellix. L PCD M A B Torque max Inertia Weight

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EWELLIX Parallel interface LEMC Interface d D L PCD M A B C Torque max Inertia Weight

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High performance actuator EWELLIX Parallel gearbox Parallel gearbox consists of one housing which fits on one side to the linear unit and on the other side to the motor adapter with the matching coupling. The coupling is already mounted on the input shaft of the gearbox and locked by a screw. The counterpart of the coupling is delivered with the motor adapter. The parallel gearbox transmits the motor torque through three stage spur gear directly to the linear unit (max. output torque 300 Nm). Three gear ratios are available and it is maintenance free. Gearbox type CAM-GS-CBA-XX CAM-GS-CCA-XX...

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Motor+Motor adapter Linear unit

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High performance actuator Manuals Supporting documents are available for downloading on ewellix.com 3D models Product configurators for 3D models download are available on ewellix.com EWELLIX Electro mechanical cylinder - LEMC Instruction for maintenance, limit switch and motor assembly

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High performance actuator LEMC-U-21Linear unit Technical data Designation Symbol Unit LEMC-U-2105 LEMC-U-2110 Performance Data Max. dynamic axial force F kN 40 max Max. dynamic axial force L1011 FL10 kN 25 Max. static axial force F. kN 40 0max Dynamic load capacity C kN 50,5 Maximum torque to reach Fmax M Nm 41,7 max Duty cycle Dunit % 100 Mechanical Data Screw type Screw diameter Screw lead Lead accuracy Stroke21 Internal overstroke each side Backlash Efficiency Inertia @ 0 mm stroke A Inertia per 100 mm stroke Weight @ 0 mm stroke A weight per 100 mm stroke Weight of anti-rotation Environment...

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Dimensional drawing LEMC-U-21xx-xxxx-TNNx-NNN (Trunnions) (×4) M6 Depth 12 on Ø78 Key - DIN6885 Roller Screw Grease Access 30˚ Roller Screw Grease Access M32×1,5 depth 17 Roller Screw Grease Access

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High performance actuator LEMC-U-30Linear unit Technical data Designation Symbol Unit LEMC-U-3005 LEMC-U-3010 Performance Data Max. dynamic axial force F kN Max. dynamic axial force L1011 FL10 kN Max. static axial force F. kN 0max Dynamic load capacity C kN Maximum torque to reach Fmax M Nm max Duty cycle Dunit % Mechanical Data Screw type Screw diameter Screw lead Lead accuracy Stroke21 Internal overstroke each side Backlash Efficiency Inertia @ 0 mm stroke A Inertia per 100 mm stroke Weight @ 0 mm stroke A weight per 100 mm stroke Weight of anti-rotation Environment Ambient temperature T ,...

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Dimensional drawing LEMC-U-30xx-xxxx-TNNx-NNN (Trunnions) (×4) M6 Depth 12 on Ø97 Roller Screw Grease Access Roller Screw Grease Access Roller Screw Grease Access

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High performance actuator Ordering key Linear units L Linear unit only Screw diameter- Screw lead - Rear attachment- Front attachment - N No attachment (female thread) Tube options- N No anti-rotation with standard sealing S No anti-rotation with improved sealing (metallic scraper) Limit switches F 2 limit switches and 1 home switch S 2 limit switches only M 1 limit switch and 1 home switch L 1 limit switch only H Home switch only Grease 1 Standard grease 2 Food grade grease 3 High load grease capacity 4 Short move grease capacity

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