COMBER

LK69 SERIES
 F l ex i b l e

Comber LK69 S with “PACT”, “SETS THE PACE”, in the combing technology
LMW-COMBER LK69 SERIES

with a production of up to 2.1 Tons/day @ 600 npm. The kinematical linkage

syntheses for synchronized and optimal movement of parts ensure gentle
handling of heavier laps. The optimal selection of fibre moving path enables
the machine to run at higher speeds without straining the fibre and ensures
efficient removal of short fibres and Neps.
2
3
Highly Efficient

3
LMW-COMBER LK69 SERIES
 Specific
Features

Drafting over Coiler More reserve cans

• For consistent output quality • 2 reserve cans (600mm can dia)
• 1 reserve can (1000mm can dia)
at 600 npm

Higher production
• Upto 2.1 tons/day

Inverter controlled main motor &

Servo driven drafting motor
• Less down time during process change and lesser
inventory

Modular Construction Flexible Variocomb

• Machine comes with 2 modules • Suitable for any process
which is handy for easy with option to remove 8 to
LMW-COMBER LK69 SERIES

installation 25% noil

4
Proven Combing Action Automatic Lap Transport
• 90 variocomb for smooth and
0
System
gentle handling of fibers
• LTS reduces man power requirement
and ensures uniform lap quality

Robust technology
• Efficient linkage drive system for
lesser vibration

High speed technology

“PACT”
• Precisely accelerated combing
LMW-COMBER LK69 SERIES

technology supports upto 600 NPM

5
 High Speed
Technology – PACT
High production of upto 2.1 Tons/day is achieved
by means of innovative design concept of “PACT”
– Precisely Accelerated Combing Technology. This
technology arrives at the best combination of the
nipper and the detaching movement and ensures gentle
fibre transfer from feed zone to the detaching zone. PACT
supports maximum speed of upto 600 npm with reliable
operation.

Headstock and Gear Box

The headstock and the gear box are so designed in
order to run the machine at speeds of upto 600 npm
(2.1 Tons/day). All the gears in the head stock are
centrally located for better serviceability.
Maintenance and User friendliness in terms of ease in
access of components. The elements are precisely
balanced for perfect swinging movement.

DETACHING
TOP NIPPER MOTION COMB MOTION
ROLLER MOTION

4 Bar linkage Motion optimized

Reduced combing
facilitates flexibility for lesser
acceleration of
in the top nipper acceleration
comb at 600 npm
motion at 600 npm

Optimization and synchronization of the above leads to

versatile and reliable operation of the machine at 600 npm

Top Comb
The Top comb plays a major role in removing the waste.
The number of needles in the Top comb depends on the
fibre micronaire, the lap weight and fibre parallelization
in the lap. If the fibre micronaire is less than 3.3, number
of needles per centimetre in top comb can be 29 and
for micronaire above 3.3, 26 needles per centimetre are
used.
The mechanical self-cleaning of the top comb is a
LMW-COMBER LK69 SERIES

result of the special geometry of the top comb pin and

a special coating of the surface of the pin.

Lesser Downtime During Process Changeover.

6
Variocomb
The circular variocomb is one of the most important
components on the comber. It exercises a very strong
influence on raw material yield and thus also on the costs
incurred. The variocomb is constructed with replaceable
strips. In case of any eventuality: say, any accidents or
due to the loading of fibres, the particular strip needs only
to be replaced.

For lower noil requirement applications there is an option

of variocomb with lesser PPSI. This brings the flexibility to
spinners to achieve the required noil percentage depends
on the process and end application.

User Cost
Flexible Friendly Effective

Proven Combing Action

In comber LK69 Series for a given combing time, with
90o Variocomb - controlled acceleration and
decceleration of comb without reducing the combing
time for effective combing.

This results in efficient combing without fibre damages

and fibre loss.

User Friendliness
The combing zone with its minimal movement of
oscillating components ensures gentle combing.

• Light weight aluminum alloy nippers

• Uniform detaching loading

• Efficient removal of short fibres and neps

• Provision for both forward & backward feed control

LMW-COMBER LK69 SERIES

Flexible variocomb with gentle combing facilitates

noil removal from 8-25*%
*Depends on raw material and quality requirement

7
 Available variants
Simple construction & stable design
LK69 variants offered
LK69 S - Electronic drafting drive & inverter for main motor
LK69 M - Mechanical drafting drive

Inverter Driven Main Motor +

Servo Draft Motor
The latest additional feature in LK 69 combers are
inverter driven main motor and servo driven draft motor.
The delivery speed of the machine and main draft change
can be altered through display itself.

The benefits of the system are:

• Less down time and more flexible during process change
• Reduction in inventory cost - Not necessary to maintain
change gears Online quality monitoring with
• Man power reduction
auto hank correction system

Drafting System
Comber LK69 Series is equipped with 3/3 pneumatically
loaded inclined drafting system placed over the coiler. This
facilitates the direct entry of sliver to the coiler calender
roller, thus ensuring higher speeds and efficiency.
• Inclined 3/3 pneumatically loaded drafting system over
coiler
• Lesser travelling distance and gentle handling of the
drafted sliver
• Tension stretch to the drafted combed sliver is
completely eliminated
• Toothed belt drive ensures noiseless performance
• Auto piecing assistance
• Built-in earthing stop motion in drafting load cylinder
for better efficiency
• Effective single sliver stop motion
LMW-COMBER LK69 SERIES

Piecing at only one place Hank Levelling with

ensures better quality.
Silver & Thick Place
Monitoring.
8
Coiler & Can Changer
Arrangement
Comber LK69 Series is equipped with linear can changer
arrangement with can size of 24” x 48” with 2 reserve
cans and 40” x 48” with 1 reserve can at delivery provided
in order to improve the efficiency. The drive system is
simple and is enclosed and the elements are so designed
for effective sliver compression. Trouble free performance
is ensured through a separate pneumatic control panel.

Automatic Lap Changer

• Auto lap changing from tolley to comber

• Four or Eight lap changing at a time

• Gentle handling of heavier laps

• Adaptability – To hold laps from Ribbon lap / Lap former

Modular Construction
The installation time has been reduced by means of the
modular construction of the machine. The entire comber
comes fully assembled in two modules. First module,
the Drive Module covers the base plate with head
stock and eight combing heads. The Second module,
the Delivery Module consists of the drafting unit, coiler
assembly and suction hood.

Module 2
Drafting & Delivery
LMW-COMBER LK69 SERIES

Module 1
Head stock

9
 LAP FORMER LH20 S
The Lap Former LH20 S is the perfect partner for Comber LK69 Series to produce high quality laps. The machine with
average delivery speed of upto 200 mpm (depending on raw material) with the production capacity of up to 680 kgs/hr
and heavier lap capacity increases output at a lower cost. The state-of-the-art technology ensures uniform lap weight
over the complete length of lap.

Drafting System
• 2/2 spring loaded drafting system with belt drive

• Reduced fibre movement at drafting ensures good batt

strength and Uniform/ Compact lap sheet- enables to
run the machine at high speeds.

• Servo Drafting enables fine Lap weight adjustments.

• Gradual dia change in end bush seating area with HF

Hardening to withstand load.

• Top roller with strengthened arbour at end bush

locating area ensures improved life
LMW-COMBER LK69 SERIES

Unique single servo drafting system

10
Top-notch Quality
• PRO-IN control system for better lap preparation

• Unique single head drafting system with servo drive

• Full Lap weight monitoring

• Lap weight levelling

• Compact and uniform Lap sheet across the width

• Lap 1 mtr CV less than 0.5%

Efficiency upto 75% Right Lap weight throughout

Lap Levelling Lap Monitor

• Draft altered throughout the lap build. • Every lap is weighed and machine is stopped on
crossing set limit.
• Consistent in Lap CV%
• No need of manual checking of laps
• Noil Consistency in comber

Highly Efficient
• Production up to 680 kg / hr, feeding to 6 combers @
600 npm, 7 combers @ 550 npm

• Average delivery speed up to 200 m/min (depending

on raw material)

• Minimum doffing time ensures higher efficiency and

productivity

• Compact footprint

With minimum doff time LH20 S

can produce approx.
60 additional laps per day
compared to equilvalent models
avialable in the market.
LMW-COMBER LK69 SERIES

Minimum doffing time ensures higher efficiency and

productivity
11
 Simple Drives and Lap Building
Mechanism
• Timing belt drives - Simple & highly efficient. Eliminates
frequent maintenance (Lubrication, Chain length
adjustment)

• New calender roller arrangement - Immediately after

calendering lap is wound with minimum Nipping
distance between calender roller and lap roller -
Prevents lap hariness

• Self aligned positioning of lap roller with new Lap Roller

System - Uniformity / Compactness of the lap sheet

Better Lap Appearance

With innovative unique single servo drafting system, the
lap produced from LH20 S will have,

• Lesser lap licking.

• Lesser hairiness.

• Less fibre to fibre cohesion.

Userfriendly
• No manual lap weight checking

• Lesser greasing points

• Lesser can handling

• Lesser no.of buffing of top rollers

Kinetic Power Back up

Technology
• Machine equipped with kinetic power back up for
synchronized stopping of machine with lap continuity
during power failure / distrubance.
LMW-COMBER LK69 SERIES

• The user friendly electrical panel with touch screen

display can be accessed easily. All the control,
monitoring and service elements are built inside the
panel.

12
Ease of Operation
• Ergonomically designed static creel for sliver feed

• Easy Creel sliver breakage identification through lamp

and display

• Creel sensor selection with respect to doubling is done

through display.

Lap Transportation System (LTS)

The Lap Transport System improves the efficiency of
the comber and reduces the manual efforts involved in
transporting the trolley to the comber.

Saves space needed traditionally to store trolleys, even

while allowing the operator to concentrate on more
critical work.

• Lap former is connected to Combers through a

conveyor transport system.

• Upon request/signal from a Comber on nearing exhaust

of the running laps, 8 nos. of full laps are transported
through overhead rails to respective comber

• The empty spools from Comber is then transferred to

the Lap former automatically.

• The lap transport system enhances the efficiency of the

combing equipment and reduces the labour costs.

Automation Benefits
• Rationalization of Work force (reduces manpower
requirements to a great extent)

• Improves Efficiency & Productivity

• Waiting time for the laps on the combers can be avoided

LMW-COMBER LK69 SERIES

Upto 50% Man Power Reduction in Combing Section

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 Compact Foot Print

LH20 S LK69 M/S

2290 mm
6883 mm

6885 mm
6193 mm

COMBER LK69 variants offered

Variant
Features
LK69 M LK69 S
Auto-piecing  
Automatic can changer  
Faster release of top roller load during machine stoppages  
Proven LDF3 S type drafting geometry  
Sliver monitoring for single sliver missing  
Closed loop digital control system on delivery
 
sliver (hank levelling)
Inverter drive for main motor  
Online Quality Monitoring System  
S Draft (Servo motor for changing draft)  
USB Interface  
Connection to Spinconnect  

Spin Connect
Digital Automation our Passion
Lap Former LH20 S & Comber LK69 Series can be
integrated with Spinconnect, a web based monitoring
and control application. The HMI details are
transferred through Wi-Fi / LAN Connection and all the
parameters can be viewed in a central computer.

• Editing of process parameters from a central location

for better process control and lot changes across
machines.

• Remote viewing of Machine PLC status from any

location for troubleshooting and for software
LMW-COMBER LK69 SERIES

upgradation.

• User defined reports and charts for analysing the Lap

Former & Comber performance can be generated for
further improvement.

• Predefined daily, weekly, monthly reports can be sent

through mail to respective users.
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Technical Data
LH20 S
Number of doubling : Upto 20

Delivery speed : Upto 200 MPM

Lap width : 300 mm

Maximum lap dia : 600 mm

Lap length : 300 mtr

Lap weight : 60 to 80 g/m

Feed can size : 24” x 48” (600 mm x 1200 mm)

: 40” x 48” (1000 mm x 1200 mm)

Drafting system : 2 over 2

Draft range : 1.0 to 1.3

Total installed power : 19.77 kW

Compressed air requirement : 7 Nm3 /hr

Exhaust air : 0.8 m3 /sec

Technical Data
LK69 M/S
Number of heads : 8

Nips per minute : Upto 600 NPM

Noil % : 8 to 25%

Delivered sliver hank : Ne 0.08 to 0.20

Collection of waste : Centralised fan suction continuous - Upwards

: Centralised fan suction continuous - Downwards

Delivery can size : 24” x 48” (600 mm x 1200 mm)

: 40” x 48” (1000 mm x 1200 mm)

Drafting system : 3 over 3

Draft range : 7 to 24
LMW-COMBER LK69 SERIES

Total installed power : LK69 S - 8.3 kW, LK69 M - 6.08 kW

Compressed air requirement : 0.4 Nm3 /hr

Exhaust air : 0.7 m3 /sec

15
 Leadership through Excellence
LAKSHMI MACHINE WORKS LIMITED
Perianaickenpalayam, Coimbatore - 641 020 INDIA.
Phone : +91 422 7192255
Email : info@lmwtmd.com
www.lmwtmd.com Issue No. 2, Jan 2022

Data & illustrations in this brochure refer to the date of printing. LMW reserves the right to make any necessary changes at any time and without special notice. LMW Innovations are patent protected.