HD Q and S Series | Bernard S300 instruction

HD Q™ and S™ Series

300, 400, 500, 600 Amp MIG Guns

Q400 MIG Q-GunTM shown with HD straight handle, medium 45˚ rotating neck, dual scedule switch and locking trigger.

A perfect fit for heavy equipment manufactuing, HD Q-Guns and S-Guns fuse maximum durability with superior comfort

Stay-Tite™ Technology

Long-lasting power cable compression fittings and necks with large tapered gun connections combine to form the foundation of Bernard® Stay TiteTM technology. This technology ensures optimal conductivity to increase weld consistency and lessen heat output while improving prod uct durability.

Amperage Ratings

MIG Gun		Duty Cycle			Description
	100% NEMA	100%CE	60% CE	35%CE
Q300 / S300	350	320	370	470	CO2	Gas
	n/a	270	310	390	80%AR20%CO2
Q400 / S400	400	350	425	520	CO2	Gas
	n/a	285	350	440	80%AR20%CO2
Q500 / S500	500	420	480	575	CO2	Gas
	n/a	370	420	500	80%AR20%CO2
Q600 / S600	550	440	540	650	CO2	Gas
	n/a	420	500	550	80%AR20%CO2

Bernard®

An Illinois Tool Works Company	Phone: 800-946-2281 (US Only) 708-946-2281 (Outside US)
449 West Corning Road, Box 667	Fax: 708-946-6726
Beecher, Illinois 60401 USA	For more information, visit us at BernardWelds.com

Issued Jan. 2008 • Index No. SPEC DRAFT

All Guns are Not Created Equal

A MIG gun should be durable, easy to use and customized to your specific application. Our MIG guns put you in control: you choose the options you need and we'll build a gun to last. We even ship most of our guns within 24 hours.

CenterfireTM contact tips, nozzles and diffusers are easy-to-use and high performing - they provide better arc starts, less spatter and more consistent welds - and also last u p to three tim es longer than competitive brands.

One piece HD straight hand le with rubber overmold is exceptionally durable and

co mfortable in multiple hand positions

Armor protected standard locking trigger can be coupled with dual schedule switch, allowing guns to be performance matched to user preference

Necks available in fixed, rotatable and multiple length options for optimal weld accessibility and improved operator comfort. Rotatable necks changeover without tools.

Patented Jump Liner allows quick neck change and replacement of only most common ly worn or clogged liner area, which reduces the amount of time a gun is offline and minimizes inventory.

Liners coiled in-house with proprietary process that improves wire feed performance and 100 percent tested to ensure smoothest wire feed in the industry.

Back end with durable rigid strain relief an d easily interchangeable direct plugs and trigger leads connect to wire feeders and machines from major manufacturers and allow simple maintenance.

Made with USA

Pride and without

Compromise in the