Chain Bending Machine
for Cold Bending of Round Steel Chains

KER 8KER 8

T Die forming device (left) und Notching device (right)

T Bending tools

Our Accomplishments for your Benefit

Mode of Operation

Robust machine design for the production of highstrength chains over a long period of time
J Uniformly bent chain in continuous operation with thestrictest bending tolerances
J No damage to the wire surface, i.e. high chain surface finish

The chain wire drawn off the pay-off unit is straightened on
two levels and passed to a pre-bending/notching station thatcan be displaced in the wire direction. There, the wire receives
a waved bend which later becomes the back curvature of thebent chain link. Moreover, the wire is notched from both sides
at intervals of one slug length.

Design Features

In a second station which is offset by several pitches, one eachslug length is fixed by a gripper, cut-off and transported to thebending station.

J

Smooth machine running
Safety devices to protect tools and machine parts
J All main movements are carried out by the positive
J mechanical control of double-acting curves
J Auxiliary feeder and slug machine are hydraulically driven
JJT Auxiliary feeder

2 WAFIOS Precision Machinery for Wire and Tube

There, the separated slug is inserted into a previously bent,
vertically standing chain link that is held by turning tongs. In thisbending station, the chain link is finish bent around a mandrel by
two swivel-mounted bending levers whose rollers are positively
guided in a cam plate that corresponds to the chain link shape.
Wire surface damage is avoided with this bending method.

Quality, Reliability, and Cost-Efficiency –WAFIOS KER 8-Chain Bending Machine

Machine application
The KER 8 Chain Bending Machine is used for the cold bendingof round steel chains. Wire material discharge from the wire coil.
The bent chain can subsequently be immediately electricallywelded on a separate machine.

b)

c)

d)

e)

f)

g) h)

g)

a)

i)
j)

S Tool design of the KER roller bending procedurea) Chain materiale) Counter cutting toolh) Tilting tongsb) Diesf) Transport gripperi) Bending mandrelc) Notching toolg) Bending levers withbending rollersj) Cam segmentd) Cutting bushing

T Bending levers with bending rollers

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.
Reliability
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.
Cost efficiency
High production output and a long service life will save money
and shorten the amortization time of your investment.
WAFIOS KER 8 Chain Welding Machine 3

Technical Data
Wire diameter:
KER 8Tensile strength up to 750 N/mm²

Drahteinzugslänge:13.0 – 20.00 mm
135.0 – 360.00 mm

Bent chain link:Pitch / inside length of chain linkmin. 3 x d / 40 | max. 5 x d / 126

Output:

Tensile strength up to 750 N/mm²
Tensile strength up to 500 N/mm²

26 – 15 links/min
26 – 15 links/min

Power installed:
Compressed air consumption:
Cooling water consumption:

22.0 + 37.0 kW(at 6 bar)

10 l/link(at 15 °C and at 3 bar)

20 l/minHydraulic system tank contents:
Space required:
Weight:1,000 l(l×w)

abt. 11,000 x 5,000 mm
abt. 27.000 kg(inluding hydraulics and Switch cabinet)

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 146-250
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
4540 en. - C06/22