Miller Electric DC 650 manual Components and Accessories

Components and Accessories

RAD Wire Drive Assemblies

Miller offers either standard- or high-speed 115-volt heavy-duty wire drive assemblies. The RAD-400 has a wire feed speed range of

20 – 400 inches per minute (0.5 –10 MPM). The RAD-780 has a wire feed speed range of

30 – 780 inches per minute (0.7 –19.8 MPM). Included adapter plate allows mounting to

2-1/2, 4-1/4, and 4-5/8 inch bolt-hole patterns.

Submerged Arc Torches

OBT 600 #043 923

600 amp, 100 percent duty cycle torch with concentric flux flow nozzle. Can be used with 1/16 – 7/32 in (1.6 – 5.5 mm) wire.

Accessories

Wire Straightener #199 733

For RAD-400 (standard-speed) or RAD-780 (high-speed) wire drive assembly.

For wires 1/16 –7/32 in (1.6 – 5.6 mm)

Light-Duty Cross Slide #195 411

Allows 6 inches of travel adjustment. Two units can be stacked to provide vertical and horizontal movement. Not recommended for tandem.

Included adapter plate allows mounting to 2-1/2, 4-1/4, and 4-5/8 inch bolt hole patterns.

RAD-400 #195 265 Standard-speed,right-angle wire drive assembly.

RAD-780 #195 266 High-speed,right-angle wire drive assembly.

OBT 600 Torch Body Extensions 1 inch #043 967

2 inch #043 969

4 inch #043 973

6 inch #043 975

OBT 1200 #043 900

1200 amp, 100 percent duty cycle torch with concentric flux flow nozzle. Can be used with 1/16 –7/32 in (1.6 – 5.5 mm) wire. OBT 1200 features a replaceable breakaway adapter end to

Heavy-Duty Cross Slide #194 783 One-inch diameter, precision, hardened and ground guide rods provide a perfect path for the sealed linear bushings, and smooth accurate movement of the weld head. Allows for 6 inches of travel adjustment and has a load capacity of 200 lb. Recommended for tandem.

Wire Reel #108 008

For 60 lb (27 kg) coil of wire. Requires Spool Support Assembly (#119 438).

Drive Rolls

“V” Knurled drive rolls for use with hard-shelled cored wires.

1/16 in (1.5 mm)	#132 955
5/64 in (2.0 mm)	#132 960
3/32 in (2.4 mm)	#132 961
7/64 in (2.8 mm)	#132 962
1/8 in (3.2 mm)	#132 963
5/32 in (3.9 mm)	#193 700
3/16 in (4.7 mm)	#193 701
7/32 in (5.5 mm)	#193 702

Flux Handling Equipment

Flux Hopper with Valve #194 775

Flux hopper with automatic flux valve will carry 25 lb of flux. The opening is sized to allow hook-up of any flux-hopper-mounted recovery system. A slag screen is also provided.

Flux Recovery Systems

Weld Engineering	1-508-839-9875
American Vacuum	1-800-321-2849
Invincible	1-800-282-6999

prevent costly damage should torch run into an obstruction.

OBT 1200 Torch Body Extension #043 981

Overall length with extension is 9 in. Actual length of extension is 8-1/2 in.

Torch Contact Tips

Wire Size	OBT 600	OBT 1200
1/16 in (1.6 mm)	#192 700	#192 141
5/64 in (2.0 mm)	#192 701	#199 026
3/32 in (2.4 mm)	#192 702	#192 142
7/64 in (2.8 mm)	#192 703	#200 771
1/8 in (3.2 mm)	#192 704	#192 143
5/32 in (4.0 mm)	#192 705	#192 144
3/16 in (4.8 mm)	#192 706	#192 136
7/32 in (5.6 mm)	#192 707	#200 756

Spool Support Assembly #119 438 For 60 lb (27 kg) wire reel.

Cable Kit for HDC 1500 Controllers #195 308

Includes 30 ft (9 m) 14-pin interconnect cable and 10 ft (3 m) motor cable.

Motor Extension Cable #195 342

25 ft (7.6 m) extension for the motor cable.

Extension Cables

25 ft (7.6 m) #043 725

50 ft (15 m) #043 726

75 ft (23 m) #043 727

14-pin welding power source control cable. Extends distance between power source and controller.

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