SPECIFICATION TABLE
Item

Model

DAW-180SS

DAW-300LS

TLW-230LS

DLW-300LS

DLW-300LSW2

DLW-400LSW

7.90/8.74
SingleDual 3.28×2/3.58×2
260/280
SingleDual
130/140
Single30.4/31.2
Dual
25.2/25.6
Single 60 - 280/60 -300
Dual 30 - 150/30 -160100
Single 2.0 - 6.0
Dual 2.0 - 3.2

Single12.9/13.9
Dual 5.07×2/5.42×2
370/390
SingleDual
185/195
34.8/35.6
SingleDual
27.4/27.8
Single 60 - 380/60 - 400
Dual 30 - 190/30 - 200

DC Welding Power
Rated Output

(kW)

4.5

8.7

5.6

7.90/8.74

Rated Current

(A)

170

280

200

260/280

Rated Voltage

(V)

26.8

31.2

28

30.4/31.2

30 - 180

30 - 300(2200 - 3000min-1)

50 - 230

30 - 280/30 - 300

2.0 - 4.0

2.0 - 6.0

2.6 - 5.0

2.0 - 6.0

Welding Current Range (A)Rated duty cycle(%)

Applicable electrode (mm)50

AC Power Source
Frequency(Hz)
Rated Output(kVA)

Rated Voltage(V)

Single 2.0 - 8.0
Dual 2.0 - 4.0

50/60
5.0/5.5

3.0

10.4/11.4

15.0

100/110/120/200/220/230/240

200/220/230/240 or 380/440

No.of Phase

1-Phase, 2wire

3-Phase ,4wire

Power Factor

1.0

0.8
（Lagging ）Diesel Engine
Model

Kubota Z402

Kubota D722-K3A

Kubota Z482-K3A

Type
Rated Output

(kW)

7.28

11.7

9.6

Rated Speed

(rpm)

3600

3000

3600

Displacement

(L)

0.4

0.719

0.479

Fuel
Fuel consumption*1 (L/h)

1.31

Fuel Tank Capacity (L)15Battery x Quantity
Dimensions/Weight
Length× Width× Height (mm)Dry Weight

Kubota D902-K3A

Yanmar 3-3TNM68G

Kubota D1105-K3B

4-cycle,vertical,water cooled with radiator(kg)

14.9/17.8
3000/3600

0.784

0.898

1.123

2.14/2.49

3.14/3.69

ASTM No.2 diesel fuel or equivalent
1.6
1.96/2.34

2.1

17.8/20.7

12.5/15.0

19

42

36
55B24L×1

36B20L×1

55B24L×1

36B20L×1

990×590×750

1270×680×740

1220×610×720

1410×560×770

1410×560×770

1520×700×770

181

300

285

379

375

471

65

64

60/63

63/65

66/68

64/67

Noise
7mdB (A)*2※1 The fuel consumptions herein are measured under the condition that welding load is a rated value and the duty cycle is fixed at 50%.
※2 The noise levels herein stated are the averaged value of the measured values of four directions of 7 meters length under non-loaded condition.
＊ When a welding machine and a generator are used simultaneously, please use them according to the instructions stipulated in the Operation Manual.

ISO 9001:2008
Certified
ISO 14001:2004

The specifications, appearance and/or coloring of the products may be subject to change without notice.
Due to printing conditions of this brochure, coloring of the products may not be same as printed herein.
Storage, transportation and usage of the products shall, at any time, be carried out in accordance with the Operation Manual.

The Denyo trademark is widely recognized as a brand , and is a registered trademark in 90
countries around the world.
Direct inquiries to the nearest Denyo distributor or to Denyo co.,Ltd.

www.denyo.co.jp/english/
CAT.NO.FW08-05-20171101-05

Printed in japan

DIESEL ENGINE-DRIVEN DC WELDER/AC GENERATOR
SOUND PROOF TYPEDLW SERIESDAW/TLW SERIESSuperior Arc Performance with
Unparalleled Stability in Generator Output.

DAW/TLW SERIESDLW SERIESThe improved diesel engine welder achieves low fuel consumption andlow noise in newly developed e-mode operations.
High-quality AC power can be used while welding is being performed.

All the products listed in this brochureare provided with the following functions.
Clean Engine

Two people can perform welding simultaneously.

Lightweight and compact design with watercooled 2-cylinder diesel engine.

The engine equipped with the Closed Breathing System whichkeeps the blow-by gas in the machine, and the alminum radiator
which does not cause lead pollution is categoried as a construction
machine that satisfies the emission gas regulation stage 3（DAW-300LS/DLW-300LS/DLW-300LSW2/DLW-400LSW/TLW-230LS),
enforced by the Ministry of Land, Infrastructure,Transport andTourism.（except for DAW-180SS ）IDLE CONTROL reduces noises and fuel cost
The Idle ControL unit automatically lowers engine
speed during no-load, reducing noise andincreasing fuel efficiency.（DAW-180SS,TLW-230LS)

Easy Daily Inspection & Maintenance
Width 560mm!

DLW-300LS

DLW-300LSW2

379

300A/6.0mm
50/60 Hz
10.4/11.4

Width 560mm!

e

MODE
Stepless

50/60 Hz
10.4/11.4

VR

Welding Mode Selector
SwitchEven when the arc length becomes long andthus the voltage rises, the current remains same.

Stepless

Arc Force Regulator
The conditions of welding work can be
freely adjusted from “Hard” to “Soft” atthe discretion of a welding worker by
Arc Force Regulator.
When “Soft” is selected,
the current for welding
work becomes stable
and welding of pipes
and upward welding
become easier to do.
On the other hand, when “Hard” isselected, start of arc becomes muchsmoother.

Voltage Reducing
Function is equipped

When the arc length becomes long and thus thevoltage rises, the current decreases.

Stepless

1 phase

VR

471

e

MODE

Variable Engine Speed
Control Device “e-mode”

DLW-Series are able to control in a
non-step fashion the number ofrotations in compliance with the load tobe applied and a lower noise level andlower fuel consumption are attainedwith an excellent job performance.

Operator may select the optimum
mode or e-mode from the 3 positionsof control. This realizes a lower
consumption of fuel.
Variable /Low Speed Mode
When the welding work
starts, the rotation ofequipped engine works
under non-step andvariable rotation
DLW-300LS
manner and the welding
machine works at high speed mode when it isconnected to alternate current（AC ）power
and works at low speed mode when it is under
no load of current.

Constant protection
against welding output
short-circuits
Constant protection against welding
output short-circuits is a functionthat significantly reduces the current
supplied to a short-circuit between thewelding rod and the base metal for acertain time after a failed arc start inorder to prevent the welding rod fromsticking (a function that allows easy
removal of the welding rod).
This function demonstrates its value
with unskilled operators and welding
in small spaces.

DENYO’s engine-driven welders is capable
to reduce the welding open circuit voltage
down to 15V for non-working
conditions and thus it isHigh/Low Speed Modepossible to prevent electric
When the welding work is performed by theshocks of welding workers
machine or the welder is connected to alternate
current （AC）power, the machine works at higheven at a place of a highspeed mode, and when the machine is underaltitude and a high humidity.
no load of current, it works at low speed mode.

Duty Cycle 100% is realized

Drooping characteristic mode

e

MODE

Denyo’s welders realized duty cycle 100%by adopting high-performance generators
and allowance-rich engines.

High Speed Mode
The welder works at high speed mode regard
less non-load conditions or loaded conditions.

Single or two people usage
can be chosen with selector
switch.

The maximum welding current and
The maximum application welding
200A/4.0mm rod of welding for two people.

IGBT chopper control systemwith Welding mode selector
switch or Arc Force Regulator.

50/60 Hz
8.0

AC power output 1- Phase
100/110/120/200/220/230/240V

Thyristor electronic control andarc drive control.

AC power output 3- Phase
200/220/230/240 or 380 - 440VAC Power can be used while
welding is being performed.

1 phase50/60 Hz9.9
3 phase

Switch key operation restarts the engine with air
vented automatically

DAW-300LS
00LS
300A /6.0 mm

50/60 Hz
3.0

300

e

MODE
Stepless

1 phaseNon-step automatic control with a microcomputer assures optimum
engine revolutions under any load conditions, with slow-down(low-speed) revolutions kept under no load.
The fuel cost can thus be reduced, ultra-low fuel consumption
achieved,and ultralow noise level maintained under any working
conditions.
The best arc-welding character istics
The e-AVC300's microcomputer-aided welding control assures
quiet, optimum operation that will accommodate any kind of
welding rod.

Explanation of a markThe maximum welding current andthe maximum application welding
320A/6.0mm rod at the time of single welding.

181

3 phase

Stepless

VR
Constant current characteristic mode

50/60 Hz
15.0

375

VR

50/60 Hz
3.0

180A /4.0mm

400A/8.0mm 200A /4.0mm

3 phase3 phaseDENYO’s DLW series welders areequipped with Welding
Mode Selector
Switch which enables
the welding workers
to change the working mode between
the drooping characteristics mode andthe constant current characteristic
mode.

e

MODE

DAW-180SS
80SS

DLW-400LSW

300A/6.0mm 160A /3.2mm

Daily inspection and maintenance can be carried out one sideof the machine. In addition, the radiater can be cleaned easily
by removing the front cover.

The machine is equipped with an automatic airventing unitthat eliminates air by turning a switch key when restarting theengine after fueling.

Alternator requires maintenace freeThe use of brushes or slip rings in the alternator eliminates theneed for maintenance.

Various protective systems assuring safety● DAW/DLW Series Welders can automatically cut the power off
when over-loading DC output.（except for TLW-230LS）● Protect over-loading AC output by shutting down its circuit
breaker.
● Automatically stop the engine with the warning indicators,
at low lubrication oil pressure, high water temperature, andinsufficient charging of the battery.

Options:
AVR, inverter load, thyristor load and computer load makes aquality exchange power supply with little
waveform distortion to an electronic circuit.

-Remote controller-Four-wheel kit(except for DAW-180SS)-Exhaust pipe attachment,

Waveform correction circuit is included in
the circuit of an inverter system and aquality exchange power supply with little waveformdistortion canbe supplied.

379 Dry Weight-Mesures against salt damage-Earth Leakage Relay

Remote controller

TLW-230LS
50 Hz /60 HzHz
50/60

5.0/5.5
5.0/5.5230
230 A/5.0/5.0 mmmm
1 phase285
285
Earth Leakage Relay

Four-wheel kit

DAW/TLW SERIESDLW SERIESThe improved diesel engine welder achieves low fuel consumption andlow noise in newly developed e-mode operations.
High-quality AC power can be used while welding is being performed.

All the products listed in this brochureare provided with the following functions.
Clean Engine

Two people can perform welding simultaneously.

Lightweight and compact design with watercooled 2-cylinder diesel engine.

The engine equipped with the Closed Breathing System whichkeeps the blow-by gas in the machine, and the alminum radiator
which does not cause lead pollution is categoried as a construction
machine that satisfies the emission gas regulation stage 3（DAW-300LS/DLW-300LS/DLW-300LSW2/DLW-400LSW/TLW-230LS),
enforced by the Ministry of Land, Infrastructure,Transport andTourism.（except for DAW-180SS ）IDLE CONTROL reduces noises and fuel cost
The Idle ControL unit automatically lowers engine
speed during no-load, reducing noise andincreasing fuel efficiency.（DAW-180SS,TLW-230LS)

Easy Daily Inspection & Maintenance
Width 560mm!

DLW-300LS

DLW-300LSW2

379

300A/6.0mm
50/60 Hz
10.4/11.4

Width 560mm!

e

MODE
Stepless

50/60 Hz
10.4/11.4

VR

Welding Mode Selector
SwitchEven when the arc length becomes long andthus the voltage rises, the current remains same.

Stepless

Arc Force Regulator
The conditions of welding work can be
freely adjusted from “Hard” to “Soft” atthe discretion of a welding worker by
Arc Force Regulator.
When “Soft” is selected,
the current for welding
work becomes stable
and welding of pipes
and upward welding
become easier to do.
On the other hand, when “Hard” isselected, start of arc becomes muchsmoother.

Voltage Reducing
Function is equipped

When the arc length becomes long and thus thevoltage rises, the current decreases.

Stepless

1 phase

VR

471

e

MODE

Variable Engine Speed
Control Device “e-mode”

DLW-Series are able to control in a
non-step fashion the number ofrotations in compliance with the load tobe applied and a lower noise level andlower fuel consumption are attainedwith an excellent job performance.

Operator may select the optimum
mode or e-mode from the 3 positionsof control. This realizes a lower
consumption of fuel.
Variable /Low Speed Mode
When the welding work
starts, the rotation ofequipped engine works
under non-step andvariable rotation
DLW-300LS
manner and the welding
machine works at high speed mode when it isconnected to alternate current（AC ）power
and works at low speed mode when it is under
no load of current.

Constant protection
against welding output
short-circuits
Constant protection against welding
output short-circuits is a functionthat significantly reduces the current
supplied to a short-circuit between thewelding rod and the base metal for acertain time after a failed arc start inorder to prevent the welding rod fromsticking (a function that allows easy
removal of the welding rod).
This function demonstrates its value
with unskilled operators and welding
in small spaces.

DENYO’s engine-driven welders is capable
to reduce the welding open circuit voltage
down to 15V for non-working
conditions and thus it isHigh/Low Speed Modepossible to prevent electric
When the welding work is performed by theshocks of welding workers
machine or the welder is connected to alternate
current （AC）power, the machine works at higheven at a place of a highspeed mode, and when the machine is underaltitude and a high humidity.
no load of current, it works at low speed mode.

Duty Cycle 100% is realized

Drooping characteristic mode

e

MODE

Denyo’s welders realized duty cycle 100%by adopting high-performance generators
and allowance-rich engines.

High Speed Mode
The welder works at high speed mode regard
less non-load conditions or loaded conditions.

Single or two people usage
can be chosen with selector
switch.

The maximum welding current and
The maximum application welding
200A/4.0mm rod of welding for two people.

IGBT chopper control systemwith Welding mode selector
switch or Arc Force Regulator.

50/60 Hz
8.0

AC power output 1- Phase
100/110/120/200/220/230/240V

Thyristor electronic control andarc drive control.

AC power output 3- Phase
200/220/230/240 or 380 - 440VAC Power can be used while
welding is being performed.

1 phase50/60 Hz9.9
3 phase

Switch key operation restarts the engine with air
vented automatically

DAW-300LS
00LS
300A /6.0 mm

50/60 Hz
3.0

300

e

MODE
Stepless

1 phaseNon-step automatic control with a microcomputer assures optimum
engine revolutions under any load conditions, with slow-down(low-speed) revolutions kept under no load.
The fuel cost can thus be reduced, ultra-low fuel consumption
achieved,and ultralow noise level maintained under any working
conditions.
The best arc-welding character istics
The e-AVC300's microcomputer-aided welding control assures
quiet, optimum operation that will accommodate any kind of
welding rod.

Explanation of a markThe maximum welding current andthe maximum application welding
320A/6.0mm rod at the time of single welding.

181

3 phase

Stepless

VR
Constant current characteristic mode

50/60 Hz
15.0

375

VR

50/60 Hz
3.0

180A /4.0mm

400A/8.0mm 200A /4.0mm

3 phase3 phaseDENYO’s DLW series welders areequipped with Welding
Mode Selector
Switch which enables
the welding workers
to change the working mode between
the drooping characteristics mode andthe constant current characteristic
mode.

e

MODE

DAW-180SS
80SS

DLW-400LSW

300A/6.0mm 160A /3.2mm

Daily inspection and maintenance can be carried out one sideof the machine. In addition, the radiater can be cleaned easily
by removing the front cover.

The machine is equipped with an automatic airventing unitthat eliminates air by turning a switch key when restarting theengine after fueling.

Alternator requires maintenace freeThe use of brushes or slip rings in the alternator eliminates theneed for maintenance.

Various protective systems assuring safety● DAW/DLW Series Welders can automatically cut the power off
when over-loading DC output.（except for TLW-230LS）● Protect over-loading AC output by shutting down its circuit
breaker.
● Automatically stop the engine with the warning indicators,
at low lubrication oil pressure, high water temperature, andinsufficient charging of the battery.

Options:
AVR, inverter load, thyristor load and computer load makes aquality exchange power supply with little
waveform distortion to an electronic circuit.

-Remote controller-Four-wheel kit(except for DAW-180SS)-Exhaust pipe attachment,

Waveform correction circuit is included in
the circuit of an inverter system and aquality exchange power supply with little waveformdistortion canbe supplied.

379 Dry Weight-Mesures against salt damage-Earth Leakage Relay

Remote controller

TLW-230LS
50 Hz /60 HzHz
50/60

5.0/5.5
5.0/5.5230
230 A/5.0/5.0 mmmm
1 phase285
285
Earth Leakage Relay

Four-wheel kit

SPECIFICATION TABLE
Item

Model

DAW-180SS

DAW-300LS

TLW-230LS

DLW-300LS

DLW-300LSW2

DLW-400LSW

7.90/8.74
SingleDual 3.28×2/3.58×2
260/280
SingleDual
130/140
Single30.4/31.2
Dual
25.2/25.6
Single 60 - 280/60 -300
Dual 30 - 150/30 -160100
Single 2.0 - 6.0
Dual 2.0 - 3.2

Single12.9/13.9
Dual 5.07×2/5.42×2
370/390
SingleDual
185/195
34.8/35.6
SingleDual
27.4/27.8
Single 60 - 380/60 - 400
Dual 30 - 190/30 - 200

DC Welding Power
Rated Output

(kW)

4.5

8.7

5.6

7.90/8.74

Rated Current

(A)

170

280

200

260/280

Rated Voltage

(V)

26.8

31.2

28

30.4/31.2

30 - 180

30 - 300(2200 - 3000min-1)

50 - 230

30 - 280/30 - 300

2.0 - 4.0

2.0 - 6.0

2.6 - 5.0

2.0 - 6.0

Welding Current Range (A)Rated duty cycle(%)

Applicable electrode (mm)50

AC Power Source
Frequency(Hz)
Rated Output(kVA)

Rated Voltage(V)

Single 2.0 - 8.0
Dual 2.0 - 4.0

50/60
5.0/5.5

3.0

10.4/11.4

15.0

100/110/120/200/220/230/240

200/220/230/240 or 380/440

No.of Phase

1-Phase, 2wire

3-Phase ,4wire

Power Factor

1.0

0.8
（Lagging ）Diesel Engine
Model

Kubota Z402

Kubota D722-K3A

Kubota Z482-K3A

Type
Rated Output

(kW)

7.28

11.7

9.6

Rated Speed

(rpm)

3600

3000

3600

Displacement

(L)

0.4

0.719

0.479

Fuel
Fuel consumption*1 (L/h)

1.31

Fuel Tank Capacity (L)15Battery x Quantity
Dimensions/Weight
Length× Width× Height (mm)Dry Weight

Kubota D902-K3A

Yanmar 3-3TNM68G

Kubota D1105-K3B

4-cycle,vertical,water cooled with radiator(kg)

14.9/17.8
3000/3600

0.784

0.898

1.123

2.14/2.49

3.14/3.69

ASTM No.2 diesel fuel or equivalent
1.6
1.96/2.34

2.1

17.8/20.7

12.5/15.0

19

42

36
55B24L×1

36B20L×1

55B24L×1

36B20L×1

990×590×750

1270×680×740

1220×610×720

1410×560×770

1410×560×770

1520×700×770

181

300

285

379

375

471

65

64

60/63

63/65

66/68

64/67

Noise
7mdB (A)*2※1 The fuel consumptions herein are measured under the condition that welding load is a rated value and the duty cycle is fixed at 50%.
※2 The noise levels herein stated are the averaged value of the measured values of four directions of 7 meters length under non-loaded condition.
＊ When a welding machine and a generator are used simultaneously, please use them according to the instructions stipulated in the Operation Manual.

ISO 9001:2008
Certified
ISO 14001:2004

The specifications, appearance and/or coloring of the products may be subject to change without notice.
Due to printing conditions of this brochure, coloring of the products may not be same as printed herein.
Storage, transportation and usage of the products shall, at any time, be carried out in accordance with the Operation Manual.

The Denyo trademark is widely recognized as a brand , and is a registered trademark in 90
countries around the world.
Direct inquiries to the nearest Denyo distributor or to Denyo co.,Ltd.

www.denyo.co.jp/english/
CAT.NO.FW08-05-20171101-05

Printed in japan

DIESEL ENGINE-DRIVEN DC WELDER/AC GENERATOR
SOUND PROOF TYPEDLW SERIESDAW/TLW SERIESSuperior Arc Performance with
Unparalleled Stability in Generator Output.