Otto Arc Systems, Inc. Aftermarket Weld Heads

Orbital Welding Collets for Arc Machines: Otto Arc Aftermarket Orbital Welding Collets for Arc Machines weld heads are made to the highest quality standards. All our collets are made from stainless steel to give you better wear over aluminum type collets.

Our new spring design collet will hold oversize, undersized tubing and new or used collet adapters better than ever. Our new spring collets have more flexibility to hold all types of tubing or pipe. Our 500 heads now offer gate screws with springs to hold the latch up to make closing the upper gate easier. Our one-piece construction on the lower head will give you better alignment on both sides of your tubing.

Aftermarket Weld Heads Printable List

9-500 Head 9-500 Head
500-125 1/8" Tube
500-25 1/4" Tube
500-375 3/8" Tube
500-5 1/2" Tube
Accessories
500-Window Replacement window
500-WI Replacement window screws
500-Screw Replacement thumb screw for use on a 9-500 head (old)
500-Screw-1 Replacement thumb screw for use on a 9-500 head (new)
500-Holder Orbital welding head holders
9-750 Head 9-750 Head
753-25 1/4" Tube
753-375 3/8" Tube
753-5 1/2" Tube
753-625 5/8" Tube
753-75 3/4" Tube
Accessories
750-Window Replacement window
750-WI Replacement window screws
750-SI Replacement SS collet screws
750-Screw Replacement thumb screw for use on a 9-750 head
750-Holder Orbital welding head holders
9-1500 Head 9-1500 Head
1503-25 1/4" Tube
1503-375 3/8" Tube
1503-5 1/2" Tube
1503-625 5/8" Tube
1503-75 3/4" Tube
1503-1 1" Tube
1503-1.25 1-1/4" Tube
1503-1.5 1-1/2" Tube
Pipe
1503-5P 1/2" Pipe
1503-75P 3/4"Pipe
1503-1P 1" Pipe
9-2000 Head 9-2000 Head
2003-5 1/2" Tube
2003-75 3/4" Tube
2003-1 1" Tube
2003-1.5 1-1/2" Tube
2003-2 2" Tube
Pipe
2003-5P 1/2" Pipe
2003-375P 3/8" Pipe
2003-75P 3/4" Pipe
2003-1P 1" Pipe
2003-1.5P 1=1/2" Pipe
9-2500 Head 9-2500 Head
2503-75 3/4" Tube
2503-1 1" Tube
2503-1.5 1-1/2" Tube
2503-2 2" Tube
2503-2.5 2-1/2" Tube
Pipe
2503-75P 3/4" Pipe
2503-1P 1" Pipe
2503-1.5P 1-1/2" Pipe
2503-2P 2" Pipe
9-3500 Head 9-3500 Head
3503-1 1" Tube
3503-1.5 1-1/2" Tube
3503-2 2" Tube
3503-2.5 2-1/2" Tube
3503-3 3" Tube
Pipe
3503-1.5P 1-1/2" Pipe
3503-2P 2" Pipe
3503-2.5P 2-1/2" Pipe
3503-3.5P 3-1/2" Pipe
9-4000 Head 9-4000 Head
4003-1 1" Tube
4003-1.5 1-1/2" Tube
4003-2 2" Tube
4003-2.5 2-1/2" Tube
4003-3 3" Tube
Tube and Pipe
4003-3.5 3-1/2" Tube (3" Pipe)
4003-4 4" Tube (3-1/2" Pipe)
4003-4.5 4-1/2" Tube (4" Pipe)
4003-2P 2" Pipe
4003-2.5P 2-1/2" Pipe
9-4500 Head 9-4500 Head
4503-1 1" Tube
4503-1.5 1-1/2" Tube
4503-2 2" Tube
4503-2.5 2-1/2" Tube
4503-3 3" Tube
Tube and Pipe
4503-3.5 3-1/2" Tube (3" Pipe)
4503-4 4" Tube (3-1/2" Pipe)
4503-4.5 4-1/2" Tube (4" Pipe)
4503-2P 2" Pipe
4503-2.5P 2-1/2" Pipe
9-7500 Head 9-7500 Head
Tube and Pipe
7503-3.5 3-1/2" Tube (3" Pipe)
7503-4 4" Tube (3-1/2" Pipe)
7503-4.5 4-1/2" Tube (4" Pipe)
7503-6 6" Tube
7503-6P 6" Pipe

NOTE: Products on this page are manufactured by Otto Arc Systems, Inc. and are not genuine AMI parts. Use may affect Arc Machines' original manufacturer's warranty. AMI is a trademark of Arc Mac.