1. Straight running due to inner/outer link design2. Low-noise running due to built-in brake in the stop-dogs3. The undercut design ensures very high rigidity and load capacity4. 15% more tensile strength (compared to the best
in the old E4 series), better unsupported length due to improved vertical
stop-dog system5. Crossbars can be removed on both sides6. Wide, cable-friendly plastic crossbars7. Improved glide surfaces – long service life8. Smooth outer contours, less dirt adhesion9. Many interior separation options10. Strain relief possible using strain relief separator within the mounting bracket11. Pivoting mounting brackets which can be attached from any side12. Alternatively available with Reverse Bend Radius, also on both sides
E 4.21 series available in the ESD & ATEX product rangeE 4.21 ESD series
* The required clearance height is HF = H + 30 mm (with 1,5 kg/m fill weight), this should be taken into account for all application types.Please contact us if you have particularly narrow space conditions.
** The calculated length corresponds to the chain length without mounting brackets.
A=Moving end, B=Fixed endPitch: 30.5 mmChain links per m: 33 linksTravel: SChain length = S/2 + K
Unsupported length versus fill weightX axis: Unsupported length in m FLB/FLGY axis: Fill weight in kg/mLower scale: Travel S in mFLB = Unsupported with permissible sagFLG = Unsupported with straight upper run
Reference example A:
Fill weight = 2,0 [kg/m]
Unsupported length FLB = 1,25 m
Travel = 2,5 m
from 10 m to max. 120 mChain length= S/2+K2Long travels - gliding (up to max. 120 m) Here, the e-chain® upper runs gliding on the lower run in a guide trough. We recommend letting our engineers support you when planning this type of system. In case of travel lengths between 4.0 and 10 m, we recommend a larger unsupported e-chain®.
A1 = Moving endA2 = Fixed end A3 = Guide trough with glide bar A4 = Guide trough with glide bar A5 = Total length of the guide trough
Samples and catalog order
E-Chain® Expert call
Service life calculation
Ask the product expert
Designing with igus®
Integrated mounting system
Modular interior separation
10 widths and 7 bend radii
Design specificationFurther information on "unsupported application"
Design specificationFurther information on "gliding application"
Other installation types
Option 1: Standard
Option 1: Standard
Note: Please observe a minimum clearance of 13 mm from the side links!
As standard, igus® separators are fitted every 2nd chain link!
Standard separator T2102
Is used for vertical division. Due to its slots, it allows basic vertical/horizontal interior separations.
Locking separator T2101
Due to special notches in the opening crossbars
of the e-chain®, it can be fixed in position in 2 mm increments. The separator cannot slide sideways during operation.
Strain relief separator T2103.Z
can be integrated into the mounting bracket and placed
in any position. Simultaneous strain relief and interior separation
of the e-chains®.
Full-width shelf 110.X
Recommended if many thin cables with similar
diameters are used. Full-width shelves can be arranged in steps of 5 mm on 3 levels.
Plastic - pivoting
The standard - plastic, one side pivoting
"Super-aluminium", "Basic" guide trough
1. Trough side part, aluminium, 2 m
2. Glide bar, plastic, 2 m
3. Plastic glide strips*, side, 2 m
4. Clamping shoe, aluminium
5. C-profile, galvanised steel
6. Screw M6 x 16
7. Sliding nut M6
8. "Basic" connector, plastic
*without glide strips on request
"Super-aluminium" trough - the igus® standard for guide troughs
The "Super" aluminium trough is a modular system of guide troughs for long travels (where e-chains® are gliding on top of themselves). The basic "Super" aluminium trough has a simple and cost-efficient designs and can be expanded for sophisticated plant engineering.
Its universal design makes it the recommended igus® standard for guide troughs.
1. Interface connector
2. Plastic glide bar
3. Clamping shoe
4. Glide strips
Support tray - Type 1
Data protection declaration