Series R4-28

Here you can configure your Energy Chain System® individually. All entries will be copied to the Bill of Materials shown at the bottom of this page.

Series R4-28 - Closed energy tube

1. Straight run through inner-/outer-link design
2. Low-noise operation through integrated brake in the radial stop dog system
3. The tongue and groove design provides greater lateral stability
4. 15% more tensile strength (compared to the best E4 series), better unsupported length through improved stop dog system and vertical radial stops
5. Shelving program with a wide range of options
6. Version NCST "without camber" simply by turning outer links without unnecessary rework
7. Crossbars are removable along both radii
8. Hinged snap-open removable lids along outer radius of Energy Tube
9. Wide, rounded plastic crossbars - cable friendly
10. 15% more tensile strength (compared to the older E4 series), better Optimized glide pads - long sevice life

Available inner widths Bi: 1.97 to 11.81 (50 - 300 mm)
Available bending radii R: 2.48 to 9.84 (63 - 250 mm)
Pitch: 1.81 (46 mm) / link = 7 links/ft (22/m)

When to use Series R4-28

If quiet operation is required
For very high speeds and/or accelerations
For long travels
High fill weights

When not to use Series R4-28

When an extremely low vibration Energy Chain®/Energy Tube is required
Series E6-29 Series R6-29
When an economic one-sided snap-open Energy Chain®/Energy Tube is required
Series 2400

Installation dimensions


Part No. :
Inner width Bi [inch]:
Bending radius R [inch]:
Travel distance S [ft]:
Fixed end dM [ft]:
Chain length^** [ft]:
Number of chain links :
External width Ba [inch]:
H^* [inch]:
D [inch]:
K [inch]:
ΔCL [inch]:
H2 [inch]:
D2 :
K2 [inch]:
Hi [inch]:
Ha [inch]:
Weight per link [oz.]:
Weight [lbs/ft]:
* The required clearance height is HF = H + 1.57 (40 mm) (with 0.67 lbs/ft (1 kg/m) fill weight) Please consult igus® if space is particurlarly restricted.
** The calculated length corresponds to the chain length without mounting brackets.

A=Moving end, B=Fixed end
Pitch: 1.81 (46 mm) per link
Links per ft: 7 (22/m)
Travel: S
Chain length = S/2 + K

Unsupported length

Dependency of the unsupported length on the additional load
X axis: Unsupported length in ft FLB/FLG
Y axis: Additional load in lbs/ft
Lower scale: travel S in ft
FLB = Unsupported with allowed sag
FLG = Unsupported with straight upper run

Price index:

Opening mechanism :

Personal contact

Application examples 3D-CAD Samples and catalog order E-Chain® Expert call Service life calculation PDF file Ask the product expert

Designing with igus®

Low-noise version

2 options mounting brackets

Interior separations in many versions

16 widths and 9 bending radii

Design specificationFurther information on "unsupported application"

Design specificationFurther information on "gliding application"

Assembly instructions

Other installation types

Technical specifications

Strain reliefs

Interior separation

1. Separators

Product range


unassembled	assembled
Per . chain link

Please use Configurator for partitioning of interior and for filling with cables.

Call configurator


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Width [inch]:
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1. Separators and spacers
Vertical separators are used if a vertical subdivision of the Energy Chain® interior is required. By standard, vertical separators are assembled every other Energy Chain® link.

Vertical separator 7603 for Energy Tubes
This separator is used for vertical subdivision. Because they are slotted, separators can also be used horizontally to form simple compartments.

Mounting brackets

1. KMA "pivoting"

2. KMA "locking"

unassembled	assembled

Recommendation for unsupported and gliding applications

Universally assemblable with potential for "all-round" fastening

Bolt connections outside E-Tube cross section

For narrow installation ratios

Corrosion resistant


:
Part No. :

Part No. :

Strain reliefs

unassembled	assembled

Universally mountable

Corrosion resistant

For extreme accelerations

For hanging and standing applications

For rigid connections


:
Part No. :

Part No. :

Strain reliefs

Guide troughs

Aluminum "SuperTrough", Basic Version

Aluminum "SuperTrough", Heavy Duty Version

Steel guide troughs

1. Trough side parts, aluminum, 6.56 ft (2 m)

2. Glide bar, plastic, 6.56 ft (2 m)

3. Glide strips*, plastic, 6.56 ft (2 m)

4. Bottom clamp, aluminum

5. C-profile, steel galvanized

6. Screw M6 x 16

7. Sliding nut M6

8. Interface connector "Basic", plastic

*without glide strips on request

Aluminum "Super Trough"- the igus® standard

The Aluminum "SuperTrough" is a modular guide trough system for long travels (when E-Chains® glide on themselves, as per sketch). Aluminum "SuperTrough" is available in low cost "basic versions" and can be upgraded for heavy duty applications. This universal usage makes it the igus® recommended new standard trough system.

Multiple fastening options with heavy duty brackets, bottom clamps and interface connectors
Side-mount glide strips for wear protection in high-speed
Corrosion proof through seawater resistant aluminium
Flexible assembly - connects with underground, independent from profile length and location of trough section interfaces


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Excellent wear and noise levels
Very easy, universal assembly

1. Connection element

2. Polymer glide bar

3. Bottom clamp

4. Glide strip

5. C-Profile

New! A quick fix for mounting the fixed end of an E-Chain®.

With this new module for the fixed end, fast and easy mounting onto the Aluminum "SuperTrough" is now possible without any drilling.

1. Trough side parts, aluminum, 6.56 ft (2 m)

2. Glide bar, plastic, 6.56 ft (2 m)

3. Glide strips*, plastic, 6.56 ft (2 m)

5. C-profile, steel galvanized

7. Sliding nut M6

9. Heavy duty bracket

10. Silencer profile, rubber

11. Screw M6 x 20

*without glide strips on request

Aluminum "Super Trough"- the igus® standard

Multiple fastening options with heavy duty brackets, bottom clamps and interface connectors
Side-mount glide strips for wear protection in high-speed
Corrosion proof through seawater resistant aluminium
Flexible assembly - connects with underground, independent from profile length and location of trough section interfaces


Part No. :

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Excellent wear and noise levels
Very easy, universal assembly

1. Aluminium profile

2. Polymer glide bar

3. Heavy duty bracket

4. Glide strip

5. C-Profile

6. Silencer profile

New! A quick fix for mounting the fixed end of an E-Chain®.

With this new module for the fixed end, fast and easy mounting onto the Aluminum "SuperTrough" is now possible without any drilling.

1. Guide trough (blue)
2. Gliding rails (black)
3. Assembly set (red)
4. Individual fastening without C profile
5. Length of rail profiles

Guide troughs are used in applications in which the upper run of the E-Chain® glides on the lower run. For application of the igus® guide trough made of steel, the following components are required. Guide trough without glide bar part No. 99-30, guide trough with gliding rails, part no. 99-31 Installation sets as a joint connection Art.No. 95-50-XX
.XX indicates the length of the C-profiles on which the guide trough is mounted.The standard length of the trough components and glide bars is 6.56 ft (2 m). The required total length of the guide trough is determined from the travel distance.


Part No. :
A [inch]:
B [inch]:
C [inch]:
D [inch]:
E [inch]:
F [inch]:
G [inch]:
H [inch]:

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+ Simple assembly through assembly sets
+ 2-part version - adjustable to the chain width
+ Very stable
+ Cost effective
+ Large selection

Guide trough without glide bar part No. 99-30, guide trough with gliding rails, part no. 99-31

Assembly sets as joint connection Part No. 95-50-XX

Support tray

Guide tray type 01

Support of the lower run - laying trough as simple modular system , one-piece laying troughs for the E-Chains® lower run. Your width, height and color - we supply the fitting E-Chain®, together with the support tray system. Ready to install onto your machine or application. Save on procurement and design time.

Complete system, ready to install
No more costly self-made designs
Suitable for many E-Chains® widths
Easy installation onto your machine, on profiles or wall-mount brackets
Available in 2 types and 4 versions


Part No. :
B Ra [inch]:
B Ri [inch]:

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Part List

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GToB Imprint General notes Data protection declaration

hanging (max.) [ft]	262,47 (80 m)
standing (max.) [ft]	16,4 (5 m)
max. side-mounted, unsupported [ft]	3,94 (1,2 m)
max. vertical, long travels [ft]	656,17 (200 m)
circular	with reworking

Material of chain links	igumid G
Min. permissible temperature [°F]	-40 (-40 °C)
Max. permissible temperature [°F]	248 (120 °C)
Gliding speed (max.) [fpm]	1968,5 (10 m/s)
Max. gliding speed [ft/s²]	164,04 (50 m/s²)
Speed FLG max. [fpm]	3937,01 (20 m/s)
Speed FLG max. [ft/s²]	656,17 (200 m/s²)
Speed FLB max. [fpm]	590,55 (3 m/s)
Speed FLB max. [ft/s²]	19,69 (6 m/s²)
Flammability class of chain link	VDE 0304 IIC UL94 HB

Series R4-28

Series R4-28 - Closed energy tube

Installation dimensions

Unsupported length

Long travels

Other installation types

Technical specifications

Interior separation

Product range

Mounting brackets

Guide troughs

Support tray

Part List