SUPRA-MIG-GUN

GUN ASSEMBLIES, CONSUMABLES, SERVICE PARTS 

® 

Water Cooled 

SUPRA-MIG-GUN ®

¤ 

Water-Cooled Supra-MIG-Guns ® 

Introducing Tweco’s new line of water-cooled MIG 

guns…the Supra-MIG Gun ® . These MIG guns stand up 

to the abuse water-cooled guns are given. All models 

are lightweight, well balanced and cool running for 

maximum efficiency and comfort. Maintenance on 

Water-Coolers 

• Designed for MIG-guns up to 800 Amps 

and TIG torches up to 500 amps 

• Stainless steel construction eliminates 

coolant contamination due to electrolyte 

and chemical reactions 

• High efficiency radiator design pulls outside 

air through radiator 

• Reservoir equipped with filter, which enhances 

pump life 

• Large water flow/level indicator makes it 

easy to monitor cooler operation from a 

distance 

• All major components are easily accessible 

for fast easy maintenance 

• Both style pumps equipped with a bypass 

to eliminate excessive pump wear 

• All coolant passes through radiator for 

more efficient cooling 

these guns is minimal due to ease and simplicity of 

design. Quick connections at all fittings makes maintenance 

a snap thus reducing down time. Available 

in 300 and 450 amp models with 10, 12 and 15 foot 

cable lengths. 

Rotary Vane Pump 

• 1.8 gpm at 50 psi 

• 1.5 gpm at 100 psi 

• Enhanced pump life 

Rotary Gear Pump 

• 1.8 gpm at 50 psi 

• 1.5 gpm at 200 psi 

• Built in bypass to tank - Bypass 

water cooled through radiator 

• Repair kit available 

Specifications: 

• Two interchangeable pump designs offered 

• Factory set at 50 psi, adjustable to 100 psi 

• 2.5 gallon reservoir 

• 115 or 230 volt single phase, 50/60 hz 

• 12,000 BTU 

• 18"L x 9-1/4"W x 12-3/8" H 

• 5/8" left-hand standard inert gas fittings 

• 8' power cord 

• Highly visible water level and flow sight glass 

• Thermal overload 

• Net weight: 42 lbs. 

Use genuine Tweco parts and consumables to protect the quality of your welds and the life of your gun!

¤ 

Table of Contents 

300 Amp Water-Cooled Supra-MIG-Gun ® 

Gun Assemblies with 14H Series Contact Tips .............................................................1 

Gun Assemblies with Threaded Eliminator ® EL16T Series Contact Tips ......................1 

Consumable Parts including Contact Tips, Diffusers, Nozzles and Conduit .................2 

Replacement Parts for 300 Amp Gun Assemblies ....................................................3, 4 

450 Amp Water-Cooled Supra-MIG-Gun ® 

Gun Assemblies with 16 Series Contact Tips................................................................5 

Gun Assemblies with Threaded Eliminator ® EL16T Series Contact Tips ......................5 

Consumable Parts including Contact Tips, Diffusers, Nozzles and Conduit .................6 

Replacement Parts for 450 Amp Gun Assemblies ....................................................7, 8 

For further assistance, contact your Tweco customer service representative: 

1-800-231-9353 

International customers, please refer to contact information located on back cover. 

Use genuine Tweco parts and consumables to protect the quality 

of your welds and the life of your gun!

¤ 

300 Amp Water-Cooled Gun Assemblies 

Length Voltage Rated at 100% Voltage Wire Gas Cooling Max. Water Min. Water Min. Water Max Water 

Class Duty Cycle Type Sizes Flow Type Inlet Temperature Flow Inlet Pressure Inlet Pressure 

10, 12, 15 ft. L CO 2 Argon DC .030" 21- H 2 O 86°F .27 43 PSI 145 PSI 

3-3, 4-4m Argon/CO 2 .045" 50 CFH gal./min. 

300 A 250 A 0,8- 10-25 30°C 1,2 l/min. 3 Bar 10 Bar 

1,2mm l/min. 

GUN ASSEMBLIES WITH “STANDARD” 14H SERIES CONTACT TIPS 

WITH TWECO REAR CONNECTOR PLUG 

WITH EURO-KWIK REAR CONNECTION 

PART NO. STOCK NO. DESCRIPTION PART NO. STOCK NO. 

SW310-3035 1033-1100 10’/3m Assy. .030-.035/0,8-0,9mm SW310X-3035 1033-1110 

SW312-3035 1033-1101 12’/4m Assy. .030-.035/0,8-0,9mm SW312X-3035 1033-1111 

SW315-3035 1033-1102 15’/5m Assy. .030-.035/0,8-0,9mm SW315X-3035 1033-1112 

SW310-4045 1033-1105 10’/3m Assy. .040-.045/1,0-1,2mm SW310X-4045 1033-1115 

SW312-4045 1033-1106 12’/4m Assy. .040-.045/1,0-1,2mm SW312X-4045 1033-1116 

SW315-4045 1033-1107 15’/5m Assy. .040-.045/1,0-1,2mm SW315X-4045 1033-1117 

WITH RETRACTABLE SPRING 

WITH MILLER REAR CONNECTION PLUG 

PIN REAR CONNECTION 


SW310M-3035 1033-1125 10’/3m Assy. .030-.035/0,8-0,9mm SW310SF-3035 1033-1135 






GUN ASSEMBLIES WITH THREADED ELIMINATOR ® 16T SERIES CONTACT TIPS 




SWE310-3035 1033-1150 10’/3m Assy. .030-.035/0,8-0,9mm SWE310X-3035 1033-1160 










SWE310M-3035 1033-1175 10’/3m Assy. .030-.035/0,8-0,9mm SWE310SF-3035 1033-1185 






1

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300 Amp Consumable Parts Listing 

42-4045-15 

14H-45 

EL16T-35 

16ST-45 

CONTACT TIP 

WIRE SIZE 14H EL16T 16ST CONDUIT 

.030” (0,8mm) N/A EL16T-30 N/A 

1160-1601 42-3035-15 

.035” (0,9mm) 14H-35 EL16T-35 16ST-35 

1420-1113 

1140-1202 1160-1602 1160-1135 

.040” (1,0mm) 14H-40 EL16T-40 16ST-40 

1140-1203 1160-1603 1160-1136 42-4045-15 

.045” (1,2mm) 14H-45 EL16T-45 16ST-45 

1420-1123 

1140-1204 1160-1604 1160-1137 

3/64” (1,2mm) 14AH-364 EL16AT-364 16AST-364 42N-3545-15 

Aluminum 1140-1213 1160-1607 1160-1140 1420-1003 

DIFFUSER 

FITS: 14H TIP EL16T TIP 16ST TIP 

SW53-14 SW53-16S SW53-EL 

1525-1130 1525-1131 1525-1132 

NOZZLES 

19/32”/15mm 15/32”/12mm Bore 23/32”/18mm Bore 

Bore Bore Bore 

SW23-15 SW23-12 SW23-18 

1230-1050 1230-1051 1230-1052 

Use genuine Tweco parts and consumables to protect the quality of your welds and the life of your gun! 

2

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300 Amp MIG-Gun Replacement Parts Drawing 

See Parts LIst on Page 4 


3

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300 Amp Water Cooled MIG-Gun Parts Listing 

Refer to Parts Drawing on Page 3 

ITEM NO. PART NO. STOCK NO. DESCRIPTION 

1 SW24-17 1244-1025 Nozzle 11/16” (17mm) Bore 

2 SW24-15 1244-1026 Nozzle 5/8” (15,5mm) Bore 


4 See page 2 EL16T Series Contact Tip 

4a See page 2 16ST Series Contact Tip 

5 SW54-16S 1540-1115 Diffuser for 16S Series Tips 

5a SW54-EL 1540-1116 Diffuser for EL16 Series Tips 

6 SW64-2 2044-1020 Insulating Ring 

7 SW64-R 2044-1025 Nozzle Retaining Ring 

8 SW64-3 2044-1019 Nozzle Holder 

9 SW64-50 1644-1125 50° Conductor Tube 

10 SW64-1 2044-1021 Conductor Tube Insulation 

11 SW94 2044-1018 Trigger 

12 SW84 2044-1023 Handle Assembly w/ Screws 

13 SW84-S 2044-1026 Handle Screw 

14 SW400-WHI 1742-2240 Water Inlet Hose (sold/ft.) 

15 SW134-W 2044-1002 Water Hose Clamp (9,5mm) 

16 SW410-CC 1742-2235 10 ft./3M Conduit Housing 

SW412-CC 1742-2236 12 ft./4M Conduit Housing 


18 SW400-CW 1742-2242 Control Wire (sold per foot) 

20 SW410-PC 1742-2230 10 ft./3m Power Cable 

SW412-PC 1742-2231 12 ft./4m Power Cable 


21 SW134-G 2044-1022 Gas Hose Clamp (8,7mm) 

22 SW450-OJ 1742-2245 Outer Jacket (sold per foot) 

23 SW410 1742-2225 10 ft./3m Complete Cable 

SW412 1742-2226 12 ft./4m Complete Cable 


24 SW144 2044-1000 Rear Support Spring 

25 SW184 2044-1011 Connector Case Cover with Screw 

26 SW184-S 2044-1027 Rear Case Screw 

27 SW400-WHO 1742-2243 Water Outlet Hose (sold per foot) 

28 SW194-M 2044-1003 Male Wire Terminal 

29 SW194-F 2044-1004 Female Wire Terminal Rear 

30 SW-QCM 2044-1005 Male Water Quick Connect 

31 SW-QCF 2044-1006 Female Water Quick Connect 

32 SW174X-2 2044-1008 Euro-Kwik Locking Ring 

33 SW174X 2044-1007 Euro-Kwik Connector Body 

34 See page 2 42 Series Conduit 

35 SW174X-1C 2044-1009 Conduit Retaining Nut 

36 SW173-T 2044-1013 Connector Block (Tweco & Miller Rear Connections) 

36a SW173-SF 2044-1028 Connector Block with Retractable Spring Pin Rear Connection 

37 174TL-M 2035-2131 Connector Plug - Miller 

38 174M-N 2040-2184 Nipple Assembly - Miller 

39 350-174 2035-2174 Tweco Connector Plug and O-Rings 


4

¤ 

450 Amp Water Cooled Supra-MIG-Gun ® Assemblies 

Length Voltage Rated at 100% Voltage Wire Gas Cooling Max. Water Min. Water Min. Water Max Water 

Class Duty Cycle Type Sizes Flow Type Inlet Temperature Flow Inlet Pressure Inlet Pressure 

10, 12, 15 ft. L CO 2 Argon DC .033" 21- H 2 O 86°F .27 43 PSI 145 PSI 

3-3, 4-4m Argon/CO 2 5/64" 50 CFH gal./min. 

450 A 400 A 0,9- 10-25 30°C 1,2 l/min. 3 Bar 10 Bar 

2,0mm l/min. 

GUN ASSEMBLIES WITH “STANDARD” THREADED 16 SERIES CONTACT TIPS 




SW410-3545 1044-1150 10’/3m Assy. .035-.045/0,8-0,9mm SW410X-3545 1044-1160 

SW412-3545 1044-1151 12’/4m Assy. .035-.045/0,8-0,9mm SW412X-3545 1044-1161 

SW415-3545 1044-1152 15’/5m Assy. .035-.045/0,8-0,9mm SW415X-3545 1044-1162 

SW410-116 1044-1155 10’/3m Assy. 1/16/1,6mm SW410X-116 1044-1165 

SW412-116 1044-1156 12’/4m Assy. 1/16/1,6mm SW412X-116 1044-1166 

SW415-116 1044-1157 15’/5m Assy. 1/16/1,6mm SW415X-116 1044-1167 








SW410M-116 1044-1180 10’/3m Assy. 1/16/1,6mm SW410SF-116 1044-1190 



GUN ASSEMBLIES WITH ELIMINATOR ® 16 SERIES CONTACT TIPS 







SWE410-116 1044-1255 10’/3m Assy. 1/16/1,6mm SWE410X-116 1044-1265 










SWE410M-116 1044-1280 10’/3m Assy. 1/16/1,6mm SWE410SF-116 1044-1290 



5

¤ 

450 Amp Consumable Parts Listing 

44-3545-15 

16S-116 EL16-45 

CONTACT TIP 

WIRE SIZE 16S (THREADED) EL16 CONDUIT 

.035” (0,9mm) 16S-35 EL16-35 

1160-1102 1160-1615 

.040” (1,0mm) 16S-40 EL16-40 44-3545-15 

1160-1103 1160-1612 1440-1103 

.045” (1,2mm) 16S-45 EL16-45 

1160-1104 1160-1613 

.052” (1,3mm) 16S-52 EL16-52 

1160-1105 1160-1615 44-116-15 

1/16” (1,6mm) 16S-116 EL16-116 1440-1113 

1160-1106 1160-1616 

5/64” (2,0mm) 16S-564 EL16-564 44-564-15 

1160-1109 1160-1618 1440-1123 

3/64” (1,2mm) 16AS-364 EL16A-364 44N-3545-15 

Aluminum 1160-1113 1160-1614 1440-1003 

DIFFUSER 

FITS: 16S (THREADED) TIP EL16 TIP 

SW54-16 

SW54-EL 

1540-1115 1540-1116 

NOZZLES 

11/16”/17mm 5/8”/15,5mm 13/16”/21mm 

Bore Bore Bore 

SW24-17 SW24-15 SW24-21 

1244-1025 1244-1026 1244-1027 


6

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Replacement Parts 450 Amp MIG-Gun 

See Parts List on Page 8 


7

¤ 

450 Amp Water Cooled MIG-Gun Parts Listing 

Refer to Parts Drawing on Page 7 

ITEM NO. PART NO. STOCK NO. DESCRIPTION 


2 SW24-15 1244-1026 Nozzle 5/8” (15,5mm) Bore 


4 See page 6 EL16 Series Contact Tip 

4a See page 6 16S Series Contact Tip 

5 SW54-16S 1540-1115 Diffuser for 16S Series Tips 

5a SW54-EL 1540-1116 Diffuser for EL16 Series Tips 

6 SW64-2 2044-1020 Insulating Ring 

7 SW64-R 2044-1025 Nozzle Retaining Ring 

8 SW64-3 2044-1019 Nozzle Holder 

9 SW64-50 1644-1125 50° Conductor Tube 

10 SW64-1 2044-1021 Conductor Tube Insulation 

11 SW94 2044-1018 Trigger 

12 SW84 2044-1023 Handle Assembly w/ Screws 

13 SW84-S 2044-1026 Handle Screw 

14 SW400-WHI 1742-2240 Water Inlet Hose (sold/ft.) 

15 SW134-W 2044-1002 Water Hose Clamp (9,5mm) 

16 SW410-CC 1742-2235 10 ft./3M Conduit Housing 



18 SW400-CW 1742-2242 Control Wire (sold per foot) 

20 SW410-PC 1742-2230 10 ft./3m Power Cable 



21 SW134-G 2044-1022 Gas Hose Clamp (8,7mm) 

22 SW450-OJ 1742-2245 Outer Jacket (sold per foot) 

23 SW410 1742-2225 10 ft./3m Complete Cable 



24 SW144 2044-1000 Rear Spring Support 

25 SW184 2044-1011 Connector Case Cover with Screws 

26 SW184-S 2044-1027 Rear Case Screw 

27 SW400-WHO 1742-2243 Water Outlet Hose (sold/ft.) 

28 SW194-M 2044-1003 Male Wire Terminal 

29 SW194-F 2044-1004 Female Wire Terminal Rear 

30 SW-QCM 2044-1005 Male Water Quick Connect 

31 SW-QCF 2044-1006 Female Water Quick Connect 

32 SW174X-2 2044-1008 Euro-Kwik Locking Ring 

33 SW174X 2044-1007 Euro-Kwik Connector Body 

34 See page 6 44 Series Conduit 

35 SW174X-1C 2044-1009 Conduit Retaining Nut 

36 SW174-T 2044-1010 Connector Block (Tweco & Miller Rear Connections) 

36a SW174-SF 2044-1029 Connector Block with Retractable Spring in Rear Connection 

37 174TL-M 2035-2131 Connector Plug - Miller 

38 174M-N 2040-2184 Nipple Assembly - Miller 

39 350-174 2035-2174 Tweco Connector Plug & O-Rings 


8

ACCREDITED BY 

THE DUTCH COUNCIL 

FOR CERTIFICATION 

Reg. No 24 

ISO-9001 CERTIFICATED FIRM 

DET NORSKE VERITAS INDUSTRY B.V., THE NETHERLANDS 

Tweco ® /Arcair ®, located in Wichita, KS, 

is an ISO 9001 registered manufacturer 

WORLD HEADQUARTERS: 101 S. Hanley Road • St. Louis, MO 63105 • 314-721-5573 • FAX 314-746-2161 

U.S. CUSTOMER SERVICE: P. O. Box 12250 • Wichita, KS 67277 

800-231-9353 • FAX 800-633-9513 

International Offices 

International Customer Service Thermadyne Canada Thermadyne Europe Thermadyne Asia Sdn. Bhd. Cigweld Australia 

Oakville, Canada Oakville, Canada Lancashire, England Kuala Lumpur, Malaysia Melbourne, Australia 

Ph: (1) 905-827-9777 Ph: (1) 905-827-1111 Ph: (44) 1257-261755 Ph: (60) 3-791-0086 Ph: (61) 3-9487-1234 

Fax: (1) 905-827-9797 Fax: (1) 905-827-3648 Fax: (44) 1257-261756 Fax: (60) 3-791-0129 Fax: (61) 3-9487-1487 

Thermadyne do Brasil Thermadyne Middle East Thermadyne de Mexico Thermadyne Japan 

Sao Paulo, Brazil Dubai, United Arab Emirates Mexico City, Mexico Osaka, Japan 

Ph: (55) 11-744-3444 Ph: (971) 4-632-400 Ph: (52) 5696-7407 Ph: (81) 726-303-577 

Fax: (55) 11-453-2260 Fax: (971) 4-631-781 Fax: (52) 5696-7757 Fax: (81) 726-378-796 

Form No. 64-9825 (11/98) © Tweco Products Inc., 1998 www.tweco.com Printed in U.S.A.

SUPRA-MIG-GUN

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