Chain Bending Machines
for Cold Bending Round Steel Link Chains

KEB x.2
SeriesKEB x.2
SeriesT Infeed and straightening

Our Expertise for your Benefit
Machine efficiency increased by ca. 10% (KEB 7.2)
Robust machine design for the production of highstrength chains over a long period of time
J Wire can be inserted into the machine by means of thefirst pair of feed rollers
J Repeatable machine settings by saving set-up parameters, thus shorter set-up and tooling times

T Wire embossing device

Options
Wire embossing device
Wetting device
J Hydraulic, quick-release mechanism for straightening devicesof the KEB 7.2JJJJ

Design Features
Servotechnology
Machine is controlled by servomotors and pneumatic cylinders
J Machine has been reinforced for processing higher tensile
strengths
J Roller feed with 2 or 3 pairs of rollers, each pair of rollers isservomotor-driven
J Revised and servomotor-driven notching device
J Each one of the three control shafts of the bending slides(right, left, rear) are individually driven by servomotors
J The device for transporting the chain link from the first to thesecond bending station is driven by two servomotors
J Tilting tongs for turning around the bent chain link is driven bytwo servomotors. Tongs are opened and closed pneumatically.
JJ2 WAFIOS Precision Machinery for Wire and Tube

T Bending slideQuality, Reliability, and Efficiency
WAFIOS Chain Bending Machines – KEB x.2 Series

Application
Chain bending machines from the KEB x.2 series are used forcold bending round steel link chains. Wire material is fed in fromthe wire coil. The bent chain can then immediately be electricallywelded on a separate machine.
Mode of Operation
The wire is drawn off the wire coil. It is then straightened in twoplanes. Then it is notched and cut at intervals according to thechain link blank length. In the first bending station, the chain link
blank is pre-bent around the two-part bending mandrel. The
pre-bent chain link is transported to the second bending station
where it is finish-bent into the chain strand. In a third station, thechain link is calibrated to the correct width.

S Input screen KEB 7.2

Quality
For more than 125 years, the name of WAFIOS has been synonymous with highest quality, safety standards, and technicalinnovations in the German machine manufacturing industry.

a)

b)

c) h)

e)

d)

Reliabilityf)

Strict quality controls, state-of-the-art production systems, andmany years of experience guarantee that your investment is safein our hands. Our global service network ensures high availabilityof WAFIOS machinery.

g)h)Cost efficiencyi)

High production output and a long service life will save money
and shorten the amortization time of your investment.
S Tool structure of the KEB x.2 double bending procedurea) Chain materiald) Bending toolsg) Pre-bending toolsb) Notching toolse) Holding toolh) Finish-bending toolsc) Cutting toolf) Bending mandreli) Tilting tongs

WAFIOS Chain bending machines, KEB x.2 series 3

Technical Data

KEB 4.2

KEB 7.2

Nominal wire Ø:
Adm. tolerances in accordance with DIN EN 818-2
Stainless steel, up to 800 N/mm²

Chain steel, up to 800 N/mm²

Chain steel, up to 900 N/mm²

Chain steel, up to 1,000 N/mm²––
5.0–10.0 mm
5.0–9.0 mm

10.0–16.0 mm
10.0–18.0 mm–10.0–16.0 mm

Wire infeed length:

155 mm max.

280 mm max.

14.5 – 52 mm
min. 2.9 × wire diameter
16–38 mm

29 – 95 mm
min. 2.9 × wire diameter
34–70 mm

Bent chain link:
Pitch / inside length of chain link
Output:

Outer chain link width

Chain steel, up to 800 N/mm²
Chain steel, up to 900 N/mm²

Compressed air consumption:

(Sl/min at 6 bar)
MachineEmbossing device

Coolant water:

Dimensions:

(l×w×h)Net weight:

(with switch cabinet)ca. 45 – 35 links/min
ca. 75 – 60 links/min

135 Sl/min---ca. 200 Sl/min
ca. 300 Sl/min

for air conditioner
on sitch cabinet

for air conditioner
on sitch cabinet

ca. 5,000 × 2,800 × 2,300

ca. 6,600 × 3,400 × 2,300

ca. 6,800 kg

ca. 12,000 kg

Our product range includes a wide variety of high-quality
chain machines.
J Chain bending machines, KEB x.1 and KEB x.2 series
J Chain bending machines, KER x.2 and KER 8 series
J KBA 601 chain bending machine with conduction (WED 601)
heating or with induction (IEW 601) heating of chain link blanks
J Chain bending machine KBF 60
with induction heating (IEW 60) of chain link blanks
J Chain (resistance butt) welding machines,
KEH x.2 and KEH 8 series
J Chain (flash butt) welding machines,
KSH and KSF 60 series
J Chain calibrating machines, KPH series

WAFIOS AG
Silberburgstraße 572764 Reutlingen, Germany
Phone +49 7121 146-0
Fax+49 7121 491-250
sales@wafios.de
www.wafios.com
Precision Machinery for Wire and Tube
Pictures may differ from agreed scope of delivery – Subject to technical changes - © WAFIOS AG 2022
4654, 4657 en. - C06/22