User manual | 70 Series Quick Specs Constant-Speed

Issued April 2016 • Index No. M/3.0
70 Series
Quick
Specs
Heavy Industrial
Applications
Heavy manufacturing
Metal fabrication
Construction
Light manufacturing
Constant-Speed
Wire Feeder
Processes
Input Power 24 VAC, 10 A, 50/60 Hz
MIG (GMAW)
Flux-cored (FCAW)
(gas- and self-shielded)
Pulsed MIG (GMAW) with
MPa Plus feeder and
optional MPa power source
Wire Diameter Capacity .023–5/64 in. (0.6–2.0 mm)
Wire Feed Speed 50–780 ipm (1.3–19.8 m/min.)
Net Weight Single feeder: 58 lb. (26 kg) Dual feeder: 87 lb. (39.5 kg)
Models: 74S: Standard, basic design
74D: Digital meters
74DX: Deluxe — digital,
full-feature
74 MPa Plus: Digital, full-feature
with Alumination™ technology
Easy access on/off switch
S-74D
model
S-74DX
model
10-foot, 14-pin interconnecting cord for connecting to any
Miller 14-pin power source.
Trigger receptacle oriented in a downward position to reduce
potential damage.
Trigger hold reduces operator fatigue by allowing the operator to
make long welds without having to energize the trigger continuously.
Dual-wire feeders allow two different wire types to be available on
one feeder, avoiding downtime from changing spools and drive rolls.
For MPa Plus feeders only! XR-Aluma-Pro™ Plus and XR™-Pistol
Plus push-pull guns for aluminum. Comes in 15-, 25- and 35-foot
lengths for extended reach with trouble-free, reliable feeding. Gun is
available in either air- or water-cooled versions.
S-74 MPa Plus
model
Models include Bernard™
BTB Gun 400 A (two with D-74
models), .035/.045-inch drive
rolls and Centerfire™ contact
tips! For more options, visit
MillerWelds.com/equiptoweld.
Posifeed™ wire drive assembly features
24 VDC high-torque, permanent-magnet motor.
Quick-change drive rolls.
Quick-release, calibrated drive-roll pressure adjustment arm allows
drive roll change without losing spring preload setting.
Four sealed ball bearing all-gear-driven drive-roll carriers for smooth,
positive and accurate wire feed with long uninterrupted service life.
Easy loading and threading of welding wire without having to release the
drive-roll pressure arm.
Solid-state speed control and brake circuit eliminates the need for
electrical/mechanical relays and increases service life.
Uses Miller standard 1-5/8 inch (41 mm) diameter drive rolls.
Quick-connect for all Miller guns.
Covered drive rolls — easy access, heavy-duty, molded composite cover
over drive assembly.
Floating positive drive systems provide trouble-free feeding on a variety
of wires.
Wire feeder is warranted for three years, parts and labor.
Miller Electric Mfg. Co.
Equipment Sales US and Canada MillerWelds.com
An ITW Welding Company
1635 West Spencer Street
P.O. Box 1079
Appleton, WI 54912-1079 USA
Phone: 866-931-9730
FAX: 800-637-2315
International Phone: 920-735-4554
International FAX: 920-735-4125
74S, 74D and 74DX Wire Feeder Features
S models (basic 70 Series feeders)
Wire speed control.
Factory-set run-in control for improved arc starts.
24 VDC high-torque, permanent-magnet motor.
Quick-change drive rolls.
Quick-release, drive-roll pressure adjustment arm allows drive roll change without losing
spring preload setting.
Solid-state speed control and brake circuit for increased service life.
Floating positive drive systems provide trouble-free feeding on a variety of wires.
S-74S
single feeder
D models add the following features
D-74D
dual feeder
Digital meters for easy viewing of the wire feed speed and voltage.
Remote voltage control allows operator to set voltage at the wire feeder without having to go
back to the power source.
Tachometer feedback to help keep wire feed speed accurate.
DX models add the following features
Four weld programs allow the operators to store four independent welding parameters
reducing welding setup time. (Four programs available per side on dual feeder.)
Adjustable run-in control for improved arc starts.
Adjustable weld sequence control gives operator complete control of the welding
parameters: preflow, run-in, weld time, crater, burnback and postflow.
Welding process range control locks parameters at a set percentage of welding parameters
to ensure welding procedures and quality standards are maintained on the shop floor.
Dual schedule, trigger dual schedule and trigger program select allows operator to switch
welding parameters without readjusting machine, eliminating downtime and enhancing quality.
S-74DX
single feeder
(Use with CV, DC
power sources.)
74S, 74D and 74DX Specifications (Subject to change without notice.)
Input
Power
Wire Feed Speed
Wire Diameter Capacity*
24 VAC,
10 A,
50/60 Hz
50–780 ipm (1.3 –19.8 m/min.)
Optional high-speed motor:
90–1,440 ipm (2.3 – 36.6 m/min.)
.023 – 5/64 in. (0.6 – 2.0 mm)
Dimensions
S-74 (Single Feeder)
D-74 (Dual Feeder)
H: 14 in. (356 mm)
W: 12.5 in. (318 mm)
D: 28 in. (711 mm)
H: 14 in. (356 mm)
W: 21 in. (533 mm)
D: 35 in. (889 mm)
Net Weight
S-74 (Single)
D-74 (Dual)
58 lb. (26 kg)
87 lb. (39.5 kg)
*When using 3/32–1/8 in. (2.4–3.2 mm) wires contact Miller Electric Mfg. Co. at 1-920-735-4505 for more information on low-speed options.
74S, 74D and 74DX Control Panels
S-74S and S-74D
1. Voltage Display
Meter*
2. Wire Speed
Display Meter*
3. Wire Feed
Speed Select
4. Trigger Hold
5. Voltage Select**
6. Jog/Purge
S-74DX
1
2
3
5
*S-74D model only
**Optional on S-74S
4
6
70 Series
24V Wire Feeder
1. Program Display
2. Program # Select
3. Weld Sequence
4. Voltage/Time Select
5. Voltage/Time
Display Meter
6. Wire Feed/
Amperage Select
7. Wire Speed/
Amperage Display
Meter
8. Control Knob
9. Trigger Hold/Dual
Schedule Control
10. Jog/Purge
1
2
4
5
6
7
3
8
9
10
®
70 Series
24V Wire Feeder
2
74 MPa Plus Wire Feeder Features
MPa Plus models have the features of the S/D/DX models and add the following
Alumination™ technology gives you the ability to use the extended reach of a push-pull
system for consistent, versatile and dependable aluminum wire feeding. Alumination gives
you the versatility to handle whatever aluminum welding job you want to tackle.
Synergic pulsed MIG operation with MPa power supplies. Provides communication between
the power source, feeder and gun. As wire speed increases/decreases, the pulse parameters
also increase/decrease to match the right amount of power needed.
Trigger schedule select allows the operator to select the alternative schedule by quickly
tapping the gun trigger when not welding. When optimized with MPa power sources the
operator can also switch from MIG to pulsed MIG.
Profile Pulse™ provides
TIG appearance with MIG
simplicity and productivity.
Achieve “stacked dime” weld
bead appearance without
back-stepping. Profile Pulse
frequency can be changed to increase or decrease the spacing between the ripple pattern to
achieve the desired weld appearance.
Accu-Mate™ properly seats the power pin for best feeding performance and prevents
Accu-Mate grooved MIG guns from sliding in the casting.
S-74 MPa Plus
single feeder
D-74 MPa Plus
dual feeder
(Use with CV, DC
power sources.)
74 MPa Plus Specifications (Subject to change without notice.)
Input
Power
24 VAC,
10 A,
50/60 Hz
Wire Feed Speed
Wire Diameter Capacity*
50–780 ipm
(1.3–19.8 m/min.)
.023 – 5/64 in. (0.6 – 2.0 mm)
.035 –1/16 in. (0.9 –1.6 mm) aluminum
Dimensions
S-74 MPa Plus
(Single Feeder)
D-74 MPa Plus
(Dual Feeder)
H: 14 in. (356 mm)
W: 12.5 in. (318 mm)
D: 28 in. (711 mm)
H: 14 in. (356 mm)
W: 21 in. (533 mm)
D: 35 in. (889 mm)
Net Weight
S-74 MPa Plus
(Single Feeder)
D-74 MPa Plus
(Dual Feeder)
58 lb. (26 kg)
87 lb. (39.5 kg)
*Wire kit 230708 is required to run 1/16 in. (1.6 mm) aluminum wire on XR-Aluma-Pro™ Plus guns and XR™-Pistol Plus guns.
74 MPa Plus Control Panel (D-74 MPa Plus dual feeder panel shown.)
D-74 MPa Plus
1. Left Dual Schedule Indicator
2. Voltage/Arc Length
Display Meter
3. Left Adjust Knob
4. Setup Button
5. Start Button
6. Right Dual Schedule Indicator
7. Amperage/Wire Speed
Display Meter
8. Right Adjust Knob
9. Left/Right Select Button
10. Crater Button
11. Jog/Purge
1
6
2
7
3
8
4
9
5
10
RO17
RO21
RO16
11
JOG
PURGE
3
70 Series Control Box, Cables and Wire Drive Motor Assemblies
Single Remote Configuration
*For additional lengths visit
MillerWelds.com/equiptoweld.
Control Box
300881 S-74S
300882 S-74D
300883 S-74DX
Motor Control Cable (11 conductor)*
254935010 10 ft. (3 m)
254935025 25 ft. (7.6 m)
Wire Drive Motor Assembly
300904 Left-hand drive
Gun NOT included.
Must be ordered
separately.
Dual Remote Configuration
Flexible mounting options
for wire drive assembly
Fixed automation, boom
applications, or other
applications that benefit
from having the drive
assembly located away
from the control box.
*For additional lengths visit
MillerWelds.com/equiptoweld.
Control Box
300886 D-74S
300887 D-74D
300888 D-74DX
Motor Control Cable (11 conductor)* Wire Drive Motor Assembly
300741001 Right-hand drive
254935010 10 ft. (3 m)
254935025 25 ft. (7.6 m)
Motor Control Cable (11 conductor)*
254935010 10 ft. (3 m)
254935025 25 ft. (7.6 m)
Guns NOT included.
Must be ordered
separately.
If using spooled wire
you will need to order
Feeder Base 195369.
Wire Drive Motor Assembly
300904 Left-hand drive
70 Series MPa Plus Control Box, Cables and Wire Drive Motor Assemblies
Single Remote Configuration
*For additional lengths visit
MillerWelds.com/equiptoweld.
Gun NOT included.
MPa Plus Control Box
300738 S-74 MPa Plus
MPa Plus Motor Control
Cable (14 conductor)*
254864010 10 ft. (3 m)
254864025 25 ft. (7.6 m)
Must be ordered
MPa Plus Wire Drive
separately.
Motor Assembly
300740 Left-hand drive
(for use with push-only guns, or XR-Aluma-Pro™ Plus
and XR™-Pistol Plus push-pull guns)
Dual Remote Configuration
Flexible mounting options
for wire drive assembly
Fixed automation, boom
applications, or other
applications that benefit
from having the drive
assembly located away
from the control box.
Note: Right-side drive in dual remote
configurations is push-only.
MPa Plus Control Box
300739 D-74 MPa Plus
Right Side Motor Control
Cable (11 conductor)*
254935010 10 ft. (3 m)
254935025 25 ft. (7.6 m)
*For additional lengths visit
MillerWelds.com/equiptoweld.
MPa Plus Motor Control
Cable (14 conductor)*
254864010 10 ft. (3 m)
254864025 25 ft. (7.6 m)
4
Wire Drive Motor Assembly
300741 Right-hand drive
(for use with push-only guns)
Guns NOT included.
Must be ordered
separately.
MPa Plus Wire Drive Motor Assembly
300740 Left-hand drive
(for use with push-only guns, or XR-Aluma-Pro™ Plus
and XR™-Pistol Plus push-pull guns)
If using spooled wire
you will need to order
Feeder Base 195369.
Power Source Compatibility for MPa Plus Wire Feeders
Pulse Capable
Synergic
Pulsed MIG
System Communication
Enhanced Arc Control
Electronic Inductance/
SharpArc®
Invision™ 352 and 450 MPa
Yes
Yes
Yes
Yes
Best
XMT® 350 and 450 MPa
Yes
Yes
Yes
Yes
Best
Power Source
AlumaPower™ 350 and 450 MPa
Compatibility
Yes (Aluminum only)
Yes (Aluminum only)
Yes
Yes
Best
XMT® 350 and 450 CC/CV
Yes (with Optima)
No
No
Yes
Better
XMT® 304 CC/CV
Yes (with Optima)
No
No
Yes
Better
™
Invision 456P
Yes (with Optima)
No
No
Yes
Better
Invision™ 456MP
Yes
No
No
Yes
Better
Yes (with Optima)
No
No
Yes
Better
Invision™ 354MP
Yes
No
No
Yes
Better
Deltaweld® Series (after KF790532)
No
No
No
No
Good
Dimension™ 650
No
No
No
No
Good
Dimension™ Series (after KE614131)
No
No
No
No
Good
Invision™ 354P
Note: Power sources not included in this list are not recommended. For specific information, please contact your local Miller ® distributor.
Drive Roll Kits and Guides (Order from Miller Service Parts.)
Select drive roll kits from chart below according to type and wire size being used. Drive roll kits include four drive rolls, necessary guides and feature an anti-wear sleeve for inlet guide.
Wire Size
“V” groove
for hard wire
“U” groove for
soft wire or
soft-shelled
cored wires
“V” knurled for
hard-shelled
cored wires
“U” cogged
for extremely soft
wire or soft-shelled
cored wires (i.e.,
hard facing types)
“U” groove for
aluminum
wires contains
nylon guides
.035 in. (0.9 mm)
151026
—
151052
—
.040 in. (1.0 mm)
161190
—
—
—
265255
—
.045 in. (1.1/1.2 mm)
151027
151037*
151053
151070
265256*
.052 in. (1.3/1.4 mm)
151028
—
151054
—
—
1/16 in. (1.6 mm)
151029
151039
151055
151072
265257
.068/.072 in. (1.8 mm)
—
—
151056
—
—
5/64 in. (2.0 mm)
—
—
151057
—
—
3/32 in. (2.4 mm)
—
151041
151058
—
—
*Accommodates .045- and .047-inch (3/64-inch) wire.
Nylon Wire Guides for Feeding Aluminum Wire
Wire Guides
Wire Size
Inlet Guide
Intermediate Guide
Wire Size
Inlet Guide
Intermediate Guide
.035 in. (0.9 mm)
221912
242417
.023 –.040 in. (0.6 –1.0 mm)
221030
149518
.047 in. (1.2 mm)
221912
205936
.045 –.052 in. (1.1 –1.4 mm)
221030
149519
1/16 in. (1.6 mm)
221912
205937
1/16 – 5/64 in. (1.6 – 2.0 mm)
221030
149520
3/32 –7/64 in. (2.4 – 2.8 mm)
229919
149521
Note: “U” groove drive rolls are recommended when feeding aluminum wire.
5
Genuine Miller Options and Accessories
®
Remote Voltage Control
194988 Field. Non-digital for S-74S
194991 Field. Non-digital for D-74S
Industrial MIG 4/0 Kit with Dinse
Connectors 300405
For use with XMT® 304 and 350, and
Invision™ 350 MPa and 352 MPa power
sources. This useful pulse-ready MIG kit
can be purchased separately. Includes
flowmeter regulator with 10-foot (3 m) gas
hose, 10-foot (3 m) 4/0 feeder weld cable
with Dinse-style connector on one end and
a lug on the other, 15-foot (4.6 m) work
cable with Dinse-style connector on one
end and 600-amp C-clamp on the other.
Carrying Cart 056301
A utility cart for the wire feeder and
other miscellaneous welding supplies.
Height: 34 inches (863 mm).
Lower tray height: 9 inches (228 mm).
Shipped disassembled.
Feeder Cart 142382
A low-profile, creeper cart which allows the
operator to easily move the feeder around
the work area. Shipped disassembled.
Turntable Assembly 146236
Allows rotation of the feeder as operator
changes work positions. This reduces
strain and bending on gun cable.
Industrial MIG 4/0 Kit 300390
For use with Invision™ 450 MPa,
XMT® 450 CC/CV and MPa, CP-302,
Deltaweld® and Dimension™ power sources.
Includes flowmeter regulator with 10-foot
(3 m) gas hose, 10-foot (3 m) 4/0 feeder
weld cable with lugs, and 15-foot (4.6 m)
work cable with 600-amp C-clamp.
Hanging Bail (Electrically Isolated)
058435
Used for suspending feeder over work area.
Note: Spool covers cannot be installed if the wire
drive assembly is in a rotated position.
Spool Adapter 047141
For use with 14-pound (6.4 kg) spool of
Lincoln self-shielding wire.
Wire Reel Assembly 108008
For 60-pound (27 kg) coil of wire.
Reel Covers
058256 For S-74 and left side of
D-74 models
091668 For right side of D-74 models
For 60-pound (27 kg) coil. Helps to protect
the welding wire from dust and other
contaminants.
Note: Reel covers cannot be installed if the wire drive
assembly is in a rotated position.
Wire Straightener
141580 For .035–.045 inch
(0.9–1.1 mm) diameter wire.
141581 For 1/16–1/8 inch
(1.6–3.2 mm) diameter wire.
Helps reduce the cast in wire to improve
wire feeding performance and increase the
service life of the gun liner and contact tip.
6
Spool Covers
057607 For S-74 and left side of
D-74 models
090389 For right side of D-74 models
For 12-inch (305 mm) spool.
Extension Cables for 14-Pin Plugs to
14-Pin Sockets*
242208025 25 ft. (7.6 m)
242208050 50 ft. (15.2 m)
242208080 80 ft. (24.4 m)
Provides 14-pin, 24 VAC, contactor and
voltage control. Add to the standard
10-foot (3 m) feeder cable to extend feeder
farther from power source.
*For additional lengths visit MillerWelds.com/equiptoweld.
Genuine Miller Accessories (Continued)
®
For MPa Plus Wire Feeders only
DSS-9 Dual Schedule Switch 071833
A two-position slide switch which attaches
to the gun handle and is used to select the
desired welding condition for dual schedule
purposes. The gun trigger operates as a standard gun trigger. (For 74DX models only.)
Extension Cables*
247831025 25 ft. (7.6 m)
247831050 50 ft. (15.2 m)
247831080 80 ft. (24.4 m)
Eleven conductors to support contactor
control and remote voltage control on all
Miller electronic CV 14-pin power sources.
Additional functions supported when using
the MPa power sources include synergic
pulsed MIG, and remote process select and
side select capabilities.
*For additional lengths visit MillerWelds.com/equiptoweld.
Swingarc™ Boom-Mounted Wire Feeders
Swingarc boom-mounted semiautomatic
wire feeders bring an extra dimension of
flexibility and efficiency to high-production
wire welding stations. You get an effective
solution that maximizes output, especially
when dealing with large weldments and
hard-to-reach places. See literature M/13.11.
XR-Aluma-Pro™ Plus Gun
300000001 15 ft. (4.6 m), air-cooled
300001001 25 ft. (7.6 m), air-cooled
300004001 25 ft. (7.6 m), water-cooled
This easy-to-use and easy-to-maintain
gooseneck-style MIG gun is designed for
push-pull wire feed systems. Available in
air- or water-cooled versions. Gun design
allows for better access into tight spots.
XR™-Pistol Plus Guns
300753 15 ft. (4.6 m), air-cooled
300754 25 ft. (7.6 m), air-cooled
300755 35 ft. (10.6 m), air-cooled
300757 25 ft. (7.6 m), water-cooled
This easy-to-use and easy-to-maintain
pistol-grip MIG gun is designed for
push-pull wire feed systems. Available in
air- or water-cooled versions.
1/16-inch (1.6 mm) Wire Kit 230708
Specially designed for 1/16-inch wire.
Includes idler roll, head tube liner and
inlet guide. Required when running
1/16-inch wires. Not included with standard
XR-Aluma-Pro Plus or XR-Pistol Plus guns.
Hardwire Liner Kit for Steel and Stainless
198377
For 15-, 25-, or 35-foot (4.6, 7.6 or 10.6 m)
guns. Kit consists of gun head tube liner
and feed cable liner. Recommend using
.030–.045 inch mild steel or stainless steel
electrode wire (.052- and 1/16-inch wire
not recommended).
Phosphorous Bronze Liner (Optional)
233999 Long head tube (air or water)
233998 Short head tube (air only)
Steel Liner (Optional)
242191 Short head tube (air only)
7
Ordering Information
Equipment and Options
Stock No.
Description
Qty.
Single-Wire Feeders (includes one 15 ft. (4.6 m) Bernard BTB Gun 400 A and drive rolls)
S-74S
951196
With standard motor
951197
With high-speed motor
300616002
With CE, Euro, standard motor
S-74D
951198
With standard motor
951199
With high-speed motor
300617003
With CE, Euro, standard motor
S-74DX
951200
With standard motor
951201
With high-speed motor
951202
With low-speed motor
300618003
With CE, Euro, standard motor
S-74 MPa Plus
951291
With standard motor, optimized for MPa power sources with
(Order XR-Aluma-Pro Plus or XR-Pistol Plus
push-pull capability
and U-groove drive rolls separately)
Dual-Wire Feeders (includes two 15 ft. (4.6 m) Bernard BTB Gun 400 A and drive rolls)
D-74S
951203
With standard motor
D-74D
951204
With standard motor
951205
With high-speed motor
300620002
With CE, Euro, standard motor
D-74DX
951206
With standard motor
951207
With high-speed motor
300621002
With CE, Euro, standard motor
D-74 MPa Plus
951292
With standard motor, optimized for MPa power sources with
(Order XR-Aluma-Pro Plus or XR-Pistol Plus
push-pull capability
and U-groove drive rolls separately)
Remote Voltage Control
194988
194991
Field. Non-digital control (S-74S model only)
Field. Non-digital control (D-74S model only)
See page 4
Q4015AE8EMC
400 A, 15 ft. (4.6 m)
For MPa Plus wire feeders only. See page 7
Remote Configurations
Replacement Gun and Consumables
Bernard™ BTB Gun 400 A
XR-Aluma-Pro™ Plus and XR™-Pistol Plus
Centerfire™ consumables
Power Sources
Invision™ 352 MPa and 450 MPa
XMT ® 304/350/450
CP-302 and Deltaweld ® Series
Dimension™ 302 and 452 and Dimension™ 650
Accessories
Industrial MIG 4/0 Kits
Carrying Cart
Feeder Cart
Turntable Assembly
Hanging Bail
Wire Straightener
Spool Covers
Spool Adapter
Wire Reel Assembly
Reel Covers
Extension Cables
DSS-9 Dual Schedule Switch
Swingarc™ Boom-Mounted Wire Feeders
Date:
Distributed by:
© 2016 Miller Electric Mfg. Co.
See literature DC/23.6
See literature DC/18.8, DC/18.93 and DC/18.94
See literature DC/13.0 and DC/16.2
See literature DC/19.2 and DC/19.3
See page 6
056301
142382
146236
058435
Electrically isolated
See page 6
See page 6
047141
108008
See page 6
See pages 6 and 7
071833
See literature M/13.11
Total Quoted Price:
Price

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