LH SeriesHorizontal Machining Center

2

LH Series

LH 45 / 55 In tegral Spindle Motor

Coolant Through Spindle

In tegral Torque motor rotar y table

Nodular spheroidal graphi te cast i ron for opt imum rigidi ty & s t i f fness.

Machine s t ructures are analysed using FEM package to ensure opt imum per formance of the machine.

BED & COLUMN

cast i ron for opt imum rigidi ty &

Machine s t ructures are analysed using FEM package to ensure

3 LM Guides – Max. Rigidity

Split

End

Col

umns

3

MILLING

High speed & high torque integral motor spindle wi th maximum speed of 15000 rpm.

Ful l power is avai lable in a wide range from 800-1000 rpm

FEED DRIVES

The rol ler guide ways are less e last ic deformation against heavy loads & have superior vibrat ion damping character is t ics.

Ful ly protected bal lscrews to avoid entr y of chips

Axes feed drives are precis ion bal l screw driven wi th direct ly mounted feed motor

Feedback for axis posi t ioning is through absolute encoder

High-pressure coolant through spindle is provide as s tandard for ef fect ive machining of components wi th maximum tool l i fe & thermal s tabi l i ty of the work piece.

>2µ

Spindle Run out

Load

Up to 50 bar

INTEGRAL SPINDLE

45°

45°

End Seal

End Cap

Carriage

Rail

Bottom SealRoller

Inner Seal

Roller LM Guides

Temperature stabilized water cooled Spindle

4

ROTARY TABLE

Compact rotar y table wi th In tegral high Torque motor up to 878 Nm

Pal le t on table is posi t ioned & clamped by accurate hydraul ic cone clamping sys tem.

The cone clamping sys tem discharges s t rong jets of air during pal le t changing to avoid chip accumulat ion in cone.

High accuracy Axial & radial rol ler bearing is used for precis ion posi t ioning & r igidi ty

Table is c lamped by disc spring & declamping is done by hydraul ics.

Zero backlash is achieved by integral torque motor.

AUTOMATIC PALLET CHANGER

The machine is equipped with rotar y shut t le type APC which is highly re l iable.

Pal le t changer is operated through Electro propor t ional direct ional control valve for pal le t l i f t ing and lowering to ensure smooth and noise f ree operat ion.

Component set up s tat ion is easi ly accessible wi th c lear view through closed safety door

LH Series

Minimum Cont. Rotary Table Increment (Angle) = 0.001°

Dire

ct D

rive

Roto

r Rotor wi th permanent magnets

5

AUTOMATIC TOOL CHANGER

The machine is designed with Chain type tool magazine for fas t and rel iable tool changing mechanism.

ATC shut ter is provided as s tandard to prevent the chip enter ing the magazine.

The tools are selected by Fixed Address Method which fol lows the shor tes t path.

Coolant through spindle is provided for ef fect ive machining of the component & opt imum tool l i fe.

Coolant around spindle is provided as s tandard.

Optional Scrapper type chip conveyor wi th drum f i l t rat ion/paper band cum magnet ic coolant f i l t rat ion sys tem with oi l skimmer provided.

Upto 50 bar

IN-LINE HYDRAULICS

In - l ine hydraul ic rotar y union opt ion is provided in machining area for f ix ture c lamping.

Thus the union rotates at par wi th Pal le t , making easy f ix ture rout ing on both pal le ts.

MILLING

Tool to Tool : 2 secChip to Chip : 4 sec

Std : 40 ToolsOpt : 60 Tools

HSK

A63

COOLANT MANAGEMENT

6

LH Series

SPEED POWER CURVE

MOVING RANGE

Description

LH 45 LH 55

With fi xture blocks With fi xture blocks

P1 1530

P2 700

A 415

B 415

C 600

D 600

E 300 350

F 300 350

G 600 700

H 900

I 700

J 450 525

K 600

L 715

M 730

N 630

J

H (M

ax. w

ork

piec

e he

ight

)

K (Z-axis stroke)L

I (Max. work piece Dia)

MN

(Y-a

xis

stro

ke)

Interference Zone

A B C (Z-axis stroke)

D (Pallet Change position)

P 1 (A

PC S

wing

)

P 2 (P

allet

Swing) F

E G (X

-axi

s st

roke

)

Dual Winding Motor

7

MILLING

SPECIFICATIONS MATERIAL REMOVAL RATE

Title Description Unit LH 45 LH 55

Capacity

X axis mm 600 700

Y axis mm 630

Z axis mm 600

Spindle center to pallet top mm 100 – 730

Spindle nose to pallet center mm 115 – 715

Max. Work piece length mm 700

Max. Work piece diameter mm 900

Pallet

Pallet size mm 450 x 450 525 x 525

No. of Pallets nos. 2

Pallet change type Rotary

Minimum indexing angle deg 0.001

Pallet change time sec. 8

Minimum load on pallet kgs 500

Spindle

Spindle bore taper type HSK A63

Spindle speed rpm 15000

Spindle motor power(Cont./30min) kW 16.7 / 11.7

FeedCutting feed rate m/min. 20

Rapid traverse rate – X, Y & Z m/min. 40

Automatic Tool

Changer

No. of tools in ATC nos. 40

Tool shank confi guration type HSK A63

Max. tool diameter mm 95

Max. tool length mm 350

Max. tool weight kgs 8

Tool change time (tool to tool) sec. 2

CNC System Controller – SIEMENS

Machine sizeFront x Side mm 5610 x 3385

Weight kgs 12000

FACE MILL ING

END MILL ING

DRILL ING

Description Unit LH 45/55Work Piece

Material - S45C

Tool - Dia 80 Face mill cutter

Spindle Speed rpm 900Feed mm/min 1500

Cutting Depth / Width mm 3 / 80

Chip Volume cc/min 360

Description Unit LH 45/55Work Piece

Material - S45C

Tool - Dia 32 Hss End mill

Spindle Speed rpm 200Feed mm/min 60

Cutting Depth / Width mm 25 / 32

Chip Volume cc/min 48

Description Unit LH 45/55Work Piece

Material - S45C

Tool - Dia 50 Hss Drill

Spindle Speed rpm 190Feed mm/min 29

Cutting Depth mm 50

TAPPING Description Unit LH 45/55Work Piece

Material - S45C

Tool - M24 X 3 Hss Tap

Spindle Speed rpm 200Feed mm/min 600

Cutting Depth mm 25

INSTALLATION DIAGRAM

Front View Top View Side View

8

CAT/

LH S

eries

/010

6201

4No

te: S

pecifi

catio

ns an

d colo

urs ar

e sub

ject t

o cha

nge w

ithou

t prio

r noti

ce. A

ccesso

ries s

hown

may

not b

e part

of st

anda

rd eq

uipme

nt.

LAKSHMI MACHINE WORKS LIMITEDMACHINE TOOL DIVISION

Arasur, Coimbatore - 641 407, India.

Phone : +91 422 3021300, 3021393 | Fax : +91 422 3021331, 3021399

E-mail : mtd_marketing@lmw.co.in | mtdsales@lmw.co.in

www.lmwcnc.comCIN-L29269TZ1962PLC000463