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SANKYO
ECO Series

ECO Series

Product catalog summary

Overview
The ED/ED-GECO Series is a line of high-performance cam-actuated indexing drive units designed for environmentally friendly applications. These units are known for their precision, stability, and low maintenance requirements, making them suitable for clean-room and other demanding environments.

Features

High accuracy and rigidity with a long lifespan.
Grease-sealed units require virtually no maintenance.
Flat-machined housing prevents dirt accumulation.
Options for rust-proof, dust-proof, anti-corrosion, and water resistance.

Cam Technology Benefits
Cam technology is highlighted for its gentle impact on both humans and the environment, offering a sustainable solution in industrial applications.

Product Variants

ED Series: Stand-alone cam unit.
ED-G Series: Complete with geared motor.

Clean Options

C Package: Rust-proof and dust-proof for clean rooms.
R Package: Rust-proof and water-resistant for high humidity environments.

Overload Protection System
The torque limiter features a mechanical shutout mechanism with adjustable torque levels, ensuring safety and reliability. A clean option is available with corrosion preventive treatments.

Applications
The series is suitable for table/dial and conveyor applications, offering flexibility in various industrial settings.

Specifications

Number of stops ranges from 2 to 48 depending on the model.
Input shaft speed and indexing accuracy vary across models.
Output and input specifications include allowable loads, torsional rigidity, and inertia.

Model Code Explanation
The document provides a detailed breakdown of the model code, explaining the significance of each component such as size, cam curve, number of stops, and clean options.

Technical Diagrams and Tables
Several diagrams and tables illustrate the dimensions, mounting specifications, and dynamic-rated output torque for different models, providing essential data for installation and operation.

Specifications and Sizing
The document provides detailed guidelines for sizing the Sandex ECO Series indexers. It emphasizes the importance of understanding input conditions and output shaft loads to ensure optimal performance and prevent premature breakage. Key factors include the number of stops, dwell time, index time, table weight and diameter, and the weight and pitch of jigs and workloads. The document advises consulting with a Sankyo representative for precise torque calculations.

Sizing Procedure
The sizing procedure involves establishing conditions by calculating the moment of inertia of loads, determining the number of stops, indexing angle, and input speed. The required torque is calculated from load conditions, and a model is selected from the capacity table. The document provides formulas for calculating inertia torque, friction torque, working load torque, and camshaft torque.

Expected Service Life
The document outlines calculations for expected service life, designed for 12,000 hours under normal conditions. It includes formulas for calculating the backlash factor, inertia load factor, and life factor to determine expected service life hours.

Symbols and Formulas
A comprehensive list of symbols and their meanings is provided, along with formulas for calculating various torques and expected life. The document includes tables for moment of inertia, inertia torque, frictional torque, necessary torque, camshaft torque, and expected life.

Model Selection and Contact Information
The document includes a model selection form for the Sandex-ECO series, requiring details such as number of stops, dwell time, index time, table diameter, and weights. It provides contact information for Sankyo's global network, including offices in the USA, China, Vietnam, Thailand, Taiwan, and Korea.

Catalog excerpts

Cam technology offers environmentally friendly benefits

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High-performance index drive units Stand-alone cam unit Complete with geared motor The ED/ED-G Series is a precision cam-actuated indexing drive. The output shaft rotates and stops repeatedly to produce an intermittent indexing motion. The housing is plated in galvanized nickel to prevent rust and provide an easy to clean flat surface. The ED/ED-G Series is designed for clean-room applications and can be ordered with various shaft and flange arrangements to suit different applications. • Widely used cam indexing unit, easy to control, stable drive. • High accuracy, rigidity, and long life. •...

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[Clean option] An optional clean package is available in our ECO series. The package consists of dust seals on the flanges around shafts, sealed installation of a drip proof panel, special instructions on tapping holes to secure the housing, and corrosion prevention processing applied to the input and output shafts. This package is available in a "C package": rust proof and dust proof specifications for extreme environments such as clean rooms, and an "R package": rust proof and water proof specification. [Overload protection system/torque limiter] Sankyo's torque limiter uses a mechanical torque...

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PRODUCT SPECIFICATION Product Specifications An optional version that has excellent rust-proof and dust-proof features, An optional version that has excellent drip and corrosion resistant features for use in high humidity locations. <Raydent processing> Raydent processing is an electroplating method using special surface processing technology to create metal surfaces similar to alloys. The Raydent layer and metal layer are completed integrated with each other and cannot be separated. The metal layer develops stainless steel characteristics after a period of stabilization. It also forms a superior...

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MODEL CODE Product Code Example ^See page 22 for product codes of torque limiters.

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3< 1 Mounting holes on sides R, S, V, and W are standard. Mounting holes on only a user-specified side is optional Dynamic-rated output torque (Top) at 60ipm(NTn) •Rated output torque (Top) is a maximum continuous torque allowed based upon 12,000 hours of endurance life. 0:lndex period S:Number of Stops Note:Cam curve is SMS-3 curve. Details about the number of stops and indexing period, not described in the table above, can be obtained by contacting us.

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Timing cam-Photo switch (option) Photo microsensor(OMRON)

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Indexing period origin (0°) 3< 1 Mounting holes on sides R, S, V, and W are standard. Mounting holes on only a user-specified side is optional *The motor will protrude beyond the indexer flange, and geared motor's bottom surface will also protrude beyond Index W 3< 1 :Mounting holes on sides R, S, V, and W are standard. Mounting holes on only a user-specified side is optional Dynamic-rated output torque (Top) at 60ipm(NTn) •Rated output torque (Top) is a maximum continuous torque allowed based upon 12,000 hours of endurance life. 0:lndex period S:Number of Stops Note:Cam curve is SMS-3 curve....

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Specifications of geared motor Table ED3.8-2 Solid line shows 1 set mounted, dashed line shows 2 sets mounted.

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Stop Position Indexing period origin©") (Scribed line) 1 Tapped mounting holes on all surfaces come automatically. Mounting holes on only a user-specified side is optional. >K2:0utput shaft available to shorten to 10mm height. Stop Position Indexing period origin©") (Scribed line) 1 Tapped mounting holes on all surfaces come automatically. Mounting holes on only a user-specified side is optional. >K2:0utput shaft available to shorten to 10mm height. Dynamic-rated output torque (Top) at 60ipm(N-m) •Rated output torque (Top) is a maximum continuous torque allowed based upon 12,000 hours of endurance...

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Specifications of geared motor Solid line shows 1 set mounted, dashed line shows 2 sets mounted.

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(Scribed line) 1 Tapped mounting holes on all surfaces come automatically. Mounting holes on only a user-specified side is optional. >K2:0utput shaft available to shorten to 10mm height. Dynamic-rated output torque (Top) at 60ipm(N-m) •Rated output torque (Top) is a maximum continuous torque allowed based upon 12,000 hours of endurance life. 0:lndex period S:Number of Stops Note:Cam curve is SMS-3 curve. Details about the number of stops and indexing period, not described in the table above, can be obtained by contacting us.

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Specifications of geared motor Solid line shows 1 set mounted, dashed line shows 2 sets mounted.

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(Scribed line) 1 Tapped mounting holes on all surfaces come automatically. Mounting holes on only a user-specified side is optional. >K2:0utput shaft available to shorten to 10mm height. (Scribed line! -^Motor's bottom surface will also protrude beyond Index W surface. SK1 Tapped mounting holes on all surfaces come automatically. Mounting holes on only a user-specified side is optional. SK2:0utput shaft available to shorten to 10mm height. Dynamic-rated output torque (Top) at 60ipm(N-m) • Rated output torque (Top) is a maximum continuous torque allowed based upon 12,000 hours of endurance life....

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Specifications of geared motor Reamed hole (option) Figure ED7-4 Input shaft with key-way (option) Timing cam-Photo switch (option) Photo microsensor(OMRON; Proximity sensor (OMRON) f\ Solid line shows 1 set mounted, dashed line shows 2 sets mounted.

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S8f 1 Tapped mounting holes on all surfaces come automatically. Mounting holes on only a user-specified side is optional. *82:Output shaft available to shorten to 10mm height. Dynamic-rated output torque (Top) at 60ipm(N-m) • Rated output torque (Top) is a maximum continuous torque allowed based upon 12,000 hours of endurance life. 9:lndex period SiNumber of Stops NoteiCam curve is SMS-3 curve. Details about the number of stops and indexing period, not described in the table above, can be obtained by contacting us.

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