Sankyo America (The Global Standard in CAM Indexing)

Sankyo America (The Global Standard in CAM Indexing)

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SANKYO ED Series Cleanroom & Rustproof Indexers


Sankyo is the worldwide leader in rotary indexing technology and continues to develop innovation in motion control. Our core indexing system is based upon the roller gear cam mechanism, a simple combination of a globoidal cam and cam followers in a precision machined turret. The profile of the cam and the rolling contact surfaces of the cam followers produce perfectly smooth and controlled motions.

ED-C Series for Cleanroom Environments

Our ED-C Series features a smooth indexing motions with very accurate angular positioning. It includes a nickel plated housing with stainless steel covers for a smooth surface finish. All coatings, seals and lubricants are cleanroom compatible to avoid outgassing or contamination.

Overview - High Torque - Dial Indexing - Indexing - Sankyo America< click to enlarge >

• Cleanroom class ISO-7 (class 10,000) compatible
• Smooth nickel plated housing with stainless steel covers to avoid debris buildup
• Input & output shafts are coated with a Raydent coating to eliminate corrosion
• Up to 300 cycles per minute in continuous or on demand duty cycle
• ±30 to ±72 arc seconds angular indexing accuracy (housing size dependent, see chart below)
• ±7.5 to ±18 arc seconds repetitive accuracy (see chart below)
• Totally maintenance-free and sealed for life
• 1 year warranty
• Operates in forward or reverse directions (can be used as an oscillator)
• 2 through 48 output stops (others are available)
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ED-R Series for Non Corrosive Environments

The ED-R Series features a smooth indexing motions with very accurate angular positioning. It includes a nickel plated housing with stainless steel covers for a smooth surface finish. All coatings, seals and lubricants are designed to avoid corrosion for clean packaging environments.

Overview - High Torque - Dial Indexing - Indexing - Sankyo America < click to enlarge >

• Smooth nickel plated housing with stainless steel covers to avoid corrosion and debris buildup
• Up to 300 cycles per minute in continuous or on demand duty cycle
• ±30 to ±72 arc seconds angular indexing accuracy (housing size dependent, see chart below)
• ±7.5 to ±18 arc seconds repetitive accuracy (see chart below)
• Totally maintenance-free and sealed for life
• 1 year warranty
• Operates in forward or reverse directions (can be used as an oscillator)
• 2 through 48 output stops (others are available)
__________________________________________________

Output Flange Design

• Dual tapered bearing design has large bending moment capacity
• Standard keyed shaft with tapped holes for installing an optional output clutch
• Standard flange with tapped holes for dial mounting (shorten shaft to 5mm for centering pilot)
• Optional output torque limiting clutch (as shown below)

Overview - High Torque - Dial Indexing - Indexing - Sankyo America Overview - High Torque - Dial Indexing - Indexing - Sankyo America< click to enlarge >
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Motor Drive Option

• Standard IP65 wash-down with epoxy paint (ISO-7/Class 10,000 cleanroom compatible)
• Standard geared motor has 230/460 dual voltage (ED2.8/3.8 is only single voltage)
• Optional servo motor drive is available for frequent cycling
• Optional brake motor for emergency stop applications
• Optional reducer with C or IEC frame motor mounting adapter
• All mount in 90° increments on either side of the rotary indexer
• All are maintenance-free (except for brake motor)
• VFD controller voltage options are 120/1, 220/1, 230/3 or 460/3

Overview - High Torque - Dial Indexing - Indexing - Sankyo AmericaOverview - High Torque - Dial Indexing - Indexing - Sankyo America
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Cycle on Demand Timing Cam Option

• Optional timing cam proximity switch provides a signal to the PLC to stop the indexer motor for cycle on demand
• Standard PNP format, IP67 proximity type switch has detachable cable (NPN is available)
• Timing cam flag is adjustable for advance signals
• Up to 2 complete sets with proximity type
Overview - High Torque - Dial Indexing - Indexing - Sankyo America

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Download Catalog, Dimensional Pages & Drawings

Item
Units
ED3.8
ED4.5
ED6
ED7
ED8
ED11
Dimensional Catalog
pdf
Full Catalog
Application & Sizing
CAD Drawing
Timing Cam Setup Procedures
ED Series User Manual
               

 

Specifications

Item
Units
ED3.8
ED4.5
ED6
ED7
ED8
ED11

Output Increments Stop

-
2,3,4,5,6,8,10,12,16,20,24,30,32,36,40 & 48 (others are available)

Cycles per Minute

RPM
~66 with VFD in cycle on demand mode or 0~300 continuous
Nominal Dial Plate or Fixture Size
mm
360
480
480
560
640
880
inch
12"
19"
19"
22"
25"
35"
Angular Positioning Accuracy
arc sec
±72
±60
±45
±30
Repetitive Positioning Accuracy
arc sec
±18
±15
±10
±7.5

Accuracy Conversion

±30 arc sec = ±0.0029" on a 20" radius (pi/180/3600*30 arcsec*20" radius= ±0.0029")

Axial Load Capacity

N
490
1,274
1,372
2,156
3,234
5,488
lbf
110
286
308
484
727
1,233

Radial Load Capacity

N
490
1,372
1,392
2,940
4,116
6,860
lbf
110
308
313
660
925
1,542
Bending Moment Capacity
N*m
16
33
34.3
63.7
80.8
220
lb*in
141
292
303
563
715
1,947
Weight - Indexer Only
kg
3.6
7.2
13.0
18
33
61
lb
7.9
15.8
28.6
39.6
72.7
134.5
Weight - Geared Motor Only
kg
3.4
4.0
4.0
10.0
11.5
25
lb
7.5
8.8
8.8
22.0
25.5
55.1
Weight - Indexer + Geared Motor
kg
7.0
11.2

17.0

28
44.5
86.0
lb
15.4
24.6
37.4
61.6
98.2
189.6

 

Why Sankyo
We make our own internal components, the rotary indexer globoidal cam & needle bearing cam followers are optimized to the largest size for each configuration. Sankyo components are ~30% larger than the competition.

Our success is simple; larger diameters transfer more torque & rotate fewer revolutions. More surface contact & fewer revolutions have less wear to inherently extend the service life. Smaller units perform the same task with less cost.

 

 

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