bmdw_e

8/14/2019 BMDW_E

http://slidepdf.com/reader/full/bmdwe 1/6

•Centerless

•Precise

•Fast

BMDWHorizontal Hardening Machines

8/14/2019 BMDW_E


Induction treatment for mass

production requires short cycle

times and high reliability. High

reproducibility and minimum

down time are features of these

machines. The complete treat-

ment should be finished in one

traverse. These installations can

be a part of a production line or

single station machines.

Methods of horizontal harden-

ing of mainly plain shafts in

centerless process

Horizontal Hardening Machinesfor Mass Production of Shafts

Horizontal pusher through a

stationary inductor on rotating

rollers, up to 3 tracks possible.

CNC Horizontal Pusher Mechanism

BMDWE Series with lifting device

Series BMDWK

NC Belt Drive Mechanism

BMDWK Series

Horizontal, continuous move-

ment through a stationary

inductor on rotating rollers,

single track only.

Series BMDWE

8/14/2019 BMDW_E


Workpiece speed can reach up

to 15 m/min. using continuous

horizontal hardening machines,

if the length tolerance and

hardening requirement allow

this. BMDWK Series machines

offer high economy and

efficiency when integrated into

the production line. There are

BMDWK Series machines for

workpiece lengths of 300, 500,and 850 mm and workpiece

diameters of 5-30 mm.

A standard machine has a con-

veyor belt with jam control at

the machine inlet to start and

stop the machine automatically

if no workpiece is on the line.

The outlet is via V-guide. Rejects

are separated automatically

(relevant data acquisition

assumed). Hand wheels allow

an easy changeover to another

workpiece group. Conveyor belt

speed is automatically adjusted

by the NC program.

Workpieces are rotated by

hardened rollers with water

cooled, stainless steel bearings.

The hardening and quench area

is completely enclosed in paint-

ed steel with front mountedswinging doors.

Horizontal Hardening MachinesBMDWK 300 – BMDWK 850

BMDWK Series hardening andquenching area with sensor in front

of inductor and downholder

Horizontal Hardening Machine

BMDWK 300 with loading magazine

8/14/2019 BMDW_E


Horizontal hardening machines

are involved in centerless pro-

cess. These machines are ideal

for plain shafts requiring high

production rates and precisely

tolerated hardening zones.

BMDW Series standard machines

are available for workpiece

lengths of 300, 500, 1000 and

1500 mm and workpiece dia-

meters of 5-50 mm. In special

cases workpieces up to 8 meters

can be accommodated. A load-

ing magazine comes as a part of

the basic equipment. Unloading

is via V-guide.

A CNC controlled servomotor is

used for the horizontal feed.

The workpiece rotation is

generated by hardened rollers

with water cooled, stainless

steel bearings. The hardening

and quench area is completely

enclosed in painted steel with

mounted swinging doors in the

front. The central lubrication

system is manually operated.

Horizontal Hardening MachinesBMDWE 300 – BMDWE 1500

Horizontal Hardening Machine BMDWE 1000.2

8/14/2019 BMDW_E


Double and triple track models to

shorten cycle time are available.

Edge hardening with preheating

and groove hardening are

available with the option of

horizontal inductor movement -

pneumatically to end position or

as CNC axis.

Other options include:

• Loading magazine forlarger quantity

• Rejecting chute

• Conveyor belts for loading

and unloading

• Integrated or separate

tempering station

• Control and documentation of

process parameters such as

energy input, quench medium

flow rate, and quench medium

temperature

• Siemens CNC control

SINUMERIK 840 D

More options available on

request!

The EFD 840 D Control Concept

Increasing demands for equip-

ment efficiency and technical

capability mean that CNC con-

trols have to be incorporated

into induction hardening

equipment whilst coping with

the demands of the PLC. The

systems have to handle the

rapid processing of digital and

analogue data. With this inmind the EFD concept, which

is based around the Siemens

SINUMERIK 840 D family,

can be delivered in 3 standard-

versions.

The series 840 D-B (basic

range), 840 D-M (medium

range) and 840 D-T (top range)

will be pre-selected depending

on the individual requirements

beginning from 1 axis-operation

up to multi axes-applications.

The control unit is mounted in

it’s own cabinet attached to the

machine body. The system

operation field is located in

close vicinity to the operator.

The control concept on the dis-

play for supervision of quality,

operating and monitoring is the

same for all three options.Absolute encoders replace the

time consuming requirement of

referencing the system on "Start

Up”.

Inductor Checking Gauge

for Horizontal Machines

840 D-T User Terminal

840 D-M User Terminal

840 D-B User Terminal

8/14/2019 BMDW_E


Website: www.efd-induction.com

Subject to modification. FAB/00018/01

Machine Control

The standard series machine

has a specially developed high

speed NC (HNC) control with

extremely short reaction time.

The terminal is separatelylocated within easy reach of the

user and has clearly marked

symbols on the function keys

to allow maximum ease and

comfort of operation. The precise

sensor to detect the workpiece

edge can be easily mounted

either in front of or behind the

inductor. This enables for exam-

ple a safe and reproducible heat

treatment of completely plain

shafts without journals even

with close hardness tolerances

at high line speeds.

Technical Specification HNC:

• LED-display for 2x40 charac-

ters

• NC-reaction time 1/1000 s

• NC-memory for 99 part pro-

grams

• Max. 2 characters available for

program number, max. 16

characters for part description

• NC and machine function keys

• Choice of different languages

Other options include:

• Loading magazine for larger

workpiece quantity

• Outlet Conveyor belt for

unloading

• Integrated or separate

tempering station

• Control and documentation of

process parameters such as

energy input, quench medium

flow rate, and quench mediumtemperature

• PC-software for NC-part pro-

gram management

More options available on

request!

HNC User Terminal BMDWK Series

Austria, ViennaTel: +43 1 914 23 16

Fax: +43 1 914 33 04

Brasil, Sao PauloTel: +55 11 4109 9466

Fax: +55 11 4109 8826

China, ShanghaiTel: +86 21 5442 0227

Fax: +86 21 5442 0242

Denmark, LystrupTel: +45 86 22 84 35

Fax: +45 86 22 84 65

France, GrenobleTel: +33 4 7649 3250

Fax: +33 476 96 20 90

Germany, FreiburgTel: +49 761 8851 0

Fax: +49 761 8851 139

India, BangaloreTel: +91 98 4403 7559

Fax: +91 80 8440 542

Italy, MonzaTel: +39 39 32 33 20

Fax: +39 39 32 26 97

Norway, SkienTel: +47 35 50 60 00

Fax: +47 35 50 60 10

Spain, PortugaleteTel: +34 94 472 09 36

Fax: +34 94 472 09 88

Sweden, VästeråsTel: +46 21 30 00 10

Fax: +46 21 35 36 56

UK, WolverhamptonTel: +44 1 902 308 800

Fax: +44 1 902 73 92 22

USA, TroyTel: +1 248 524 9900

Fax: +1 248 524 9991

Please contact your local EFD office for further information:

Application example for precise

shaft hardening with BMDWK,

3 zones, 120 mm/s line speed

bmdw_e

Documents